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<body class="book">
<div id="header">
<h1>The Megatest Users Manual</h1>
<span id="author">Matt Welland</span><br>
<span id="email" class="monospaced">&lt;<a href="mailto:matt@kiatoa.com">matt@kiatoa.com</a>&gt;</span><br>
<span id="revnumber">version 1.0,</span>
<span id="revdate">April 2012</span>
<div id="toc">
  <div id="toctitle">Table of Contents</div>
  <noscript><p><b>JavaScript must be enabled in your browser to display the table of contents.</b></p></noscript>
</div>
</div>
<div id="content">
<div class="sect1">
<h2 id="_preface">Preface</h2>
<div class="sectionbody">
<div class="paragraph"><p>This book is organised as three sub-books; getting started, writing tests and reference.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_why_megatest">Why Megatest?</h2>
<div class="sectionbody">
<div class="paragraph"><p>The Megatest project was started for two reasons, the first was an
immediate and pressing need for a generalized tool to manage a suite
of regression tests and the second was the fact that the author had
written or maintained several such tools at different companies over
the years and it seemed a good thing to have a single open source
tool, flexible enough to meet the needs of any team doing continuous
integrating and or running a complex suite of tests for release
qualification.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_megatest_design_philosophy">Megatest Design Philosophy</h2>
<div class="sectionbody">
<div class="paragraph"><p>Megatest is a distributed system intended to provide the minimum needed
resources to make writing a suite of tests and tasks for implementing
continuous build for software, design engineering or process control (via
owlfs for example) without being specialized for any specific problem
space. Megatest in of itself does not know what constitutes a PASS or FAIL
of a test or task. In most cases megatest is best used in conjunction with
logpro or a similar tool to parse, analyze and decide on the test outcome.</p></div>
<div class="ulist"><ul>
<li>
<p>
Self-checking -Repeatable strive for directed or self-checking test
   as opposed to delta based tests
</p>
</li>
<li>
<p>
Traceable - environment variables, host OS and other possibly influential
   variables are captured and kept recorded.
</p>
</li>
<li>
<p>
Immutable - once this test is run it cannot be easily overwritten or
   accidentally modified.
</p>
</li>
<li>
<p>
Repeatable - this test result can be recreated in the future
</p>
</li>
<li>
<p>
Relocatable - the testsuite or automation area can be checked out and the tests run anywhere
</p>
</li>
<li>
<p>
Encapsulated - the tests run in self-contained directories and all inputs
   and outputs to the process can be found in the run areas.
</p>
</li>
<li>
<p>
Deployable - anyone on the team, at any site, at any time can run the flow
</p>
</li>
</ul></div>
</div>
</div>
<div class="sect1">
<h2 id="_megatest_architecture">Megatest Architecture</h2>
<div class="sectionbody">
<div class="paragraph"><p>All data to specify the tests and configure the system is stored in
plain text files. All system state is stored in an sqlite3
database. Tests are launched using the launching system available for
the distributed compute platform in use. A template script is provided
which can launch jobs on local and remote Linux hosts. Currently
megatest uses the network filesystem to call home to your master
sqlite3 database.</p></div>
</div>
</div>
<div class="sect1">
<h2 id="_road_map">Road Map</h2>
<div class="sectionbody">
<div class="paragraph"><p>Note 1: This road-map is still evolving and subject to change without notice.</p></div>
<div class="sect2">
<h3 id="_architecture_refactor">Architecture Refactor</h3>
<div class="sect3">
<h4 id="_goals">Goals</h4>
<div class="olist arabic"><ol class="arabic">
<li>
<p>
Reduce load on the file system. Sqlite3 files on network filesystem can be
  a burden. <span class="green">[DONE]</span>
</p>
</li>
<li>
<p>
Reduce number of servers and frequency of start/stop. This is mostly an
  issue of clutter but also a reduction in "moving parts". <span class="green">[DONE]</span>
</p>
</li>
<li>
<p>
Coalesce activities to a single home host where possible. Give the user
  feedback that they have started the dashboard on a host other than the
  home host. <span class="green">[DONE]</span>
</p>
</li>
<li>
<p>
Reduce number of processes involved in managing running tests.
</p>
</li>
</ol></div>
</div>
<div class="sect3">
<h4 id="_changes_needed">Changes Needed</h4>
<div class="olist arabic"><ol class="arabic">
<li>
<p>
ACID compliant db will be on /tmp and synced to megatest.db with a five
  second max delay. <span class="green">[DONE]</span>
</p>
</li>
<li>
<p>
Read/writes to db for processes on homehost will go direct to /tmp
  megatest.db file. <span class="green">[DONE]</span>
</p>
</li>
<li>
<p>
Read/wites fron non-homehost processes will go through one server. Bulk
  reads (e.g. for dashboard or list-runs) will be cached on the current host
  in /tmp and synced from the home megatest.db in the testsuite area. <span class="green">[DONE]</span>
</p>
</li>
<li>
<p>
Db syncs rely on the target db file timestame minus some margin. <span class="green">[DONE]</span>
</p>
</li>
<li>
<p>
Since bulk reads do not use the server we can switch to simple RPC for the
  network transport. <span class="green">[DONE]</span>
</p>
</li>
<li>
<p>
Test running manager process extended to manage multiple running tests.
</p>
</li>
</ol></div>
</div>
</div>
<div class="sect2">
<h3 id="_current_items">Current Items</h3>
<div class="sect3">
<h4 id="_ww05_migrate_to_inmem_db">ww05 - migrate to inmem-db</h4>
<div class="olist arabic"><ol class="arabic">
<li>
<p>
Switch to inmem db with fast sync to on disk db&#8217;s <span class="green">[DONE]</span>
</p>
</li>
<li>
<p>
Server polls tasks table for next action
</p>
<div class="olist loweralpha"><ol class="loweralpha">
<li>
<p>
Task table used for tracking runner process <span class="red">[Replaced by mtutil]</span>
</p>
</li>
<li>
<p>
Task table used for jobs to run <span class="red">[Replaced by mtutil]</span>
</p>
</li>
<li>
<p>
Task table used for queueing runner actions (remove runs,
   cleanRunExecute, etc)  <span class="red">[Replaced by mtutil</span>]
</p>
</li>
</ol></div>
</li>
</ol></div>
<div class="paragraph"><p>shifting, note that the preceding blank line is needed.</p></div>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_installation">Installation</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_dependencies">Dependencies</h3>
<div class="paragraph"><p>Chicken scheme and a number of "eggs" are required for building
Megatest. See the script installall.sh in the utils directory of the
source distribution for an automated way to install everything
needed for building Megatest on Linux.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_getting_started">Getting Started</h2>
<div class="sectionbody">
<div class="openblock">
<div class="title">Getting started with Megatest</div>
<div class="content">
<div class="paragraph"><p>Creating a testsuite or flow and your first test or task.</p></div>
</div></div>
<div class="paragraph"><p>After installing Megatest you can create a flow or testsuite and add some
tests using the helpers. Here is a quickstart sequence to get you up and
running your first automated testsuite.</p></div>
<div class="sect2">
<h3 id="_creating_a_megatest_area">Creating a Megatest Area</h3>
<div class="sect3">
<h4 id="_choose_target_keys">Choose Target Keys</h4>
<div class="paragraph"><p>First choose your "target" keys. These are used to organise your runs in a
way that is meaningful to your project. If you are unsure about what to use
for keys just use a single generic key such as "RUNTYPE". These keys will be
used to hand values to your tests via environment variables so ensure they
are unique. Prefixing them with something such as PROJKEYS_ is a good
strategy.</p></div>
<div class="paragraph"><p>Examples of keys:</p></div>
<table class="tableblock frame-all grid-all"
style="
width:60%;
">
<caption class="title">Table 1. Example keys</caption>
<col style="width:50%;">
<col style="width:50%;">
<thead>
<tr>
<th class="tableblock halign-left valign-top" > Option            </th>
<th class="tableblock halign-left valign-top" > Description</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-left valign-top" ><p class="tableblock">RELEASE/ITERATION</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock">This example is used by Megatest for its internal QA.</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top" ><p class="tableblock">ARCH/OS/RELEASE</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock">For a software project targeting multiple platforms</p></td>
</tr>
<tr>
<td class="tableblock halign-left valign-top" ><p class="tableblock">UCTRLR/NODETYPE</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock">Microcontroller project with different controllers
running same software</p></td>
</tr>
</tbody>
</table>
</div>
<div class="sect3">
<h4 id="_create_area_config_files">Create Area Config Files</h4>
<div class="paragraph"><p>You will need to choose locations for your runs (the data generated every
time you run the testsuite) and link tree. For getting started answer the
prompts with "runs" and "links". We use the Unix editor "vi" in the examples
below but you can use any plain text editor.</p></div>
<div class="listingblock">
<div class="title">Using the helper to create a Megatest area</div>
<div class="content monospaced">
<pre>megatest -create-megatest-area

# optional: verify that the settings are ok
vi megatest.config
vi runconfigs.config</pre>
</div></div>
</div>
</div>
<div class="sect2">
<h3 id="_creating_a_test">Creating a Test</h3>
<div class="paragraph"><p>Choose the test name for your first test and run the helper. You can edit
the files after the initial creation. You will need to enter names and
scripts for the steps to be run and then edit the
tests/&lt;testname&gt;/testconfig file and modify the logpro rules to properly
process the log output from your steps. For your first test just hit enter
for the "waiton", "priority" and iteration variable prompts.</p></div>
<div class="paragraph"><p>Hint: for geting started make your logpro rules very liberal. expect:error
patterns should match nothing and comment out expect:required rules.</p></div>
<div class="listingblock">
<div class="title">Using the helper to create a Megatest test</div>
<div class="content monospaced">
<pre>megatest -create-test myfirsttest

# then edit the generated config
vi tests/myfirsttest/testconfig</pre>
</div></div>
</div>
<div class="sect2">
<h3 id="_running_your_test">Running your test</h3>
<div class="paragraph"><p>First choose a target and runname. If you have a two-place target such as
RELEASE/ITERATION a target would look like v1.0/aff3 where v1.0 is the
RELEASE and aff3 is the ITERATION. For a run name just use something like
run1.</p></div>
<div class="listingblock">
<div class="title">Running all tests (testpatt of "%" matches all tests)</div>
<div class="content monospaced">
<pre>megatest -run -target v1.0/aff3 -runname run1 -testpatt % -log run1.log</pre>
</div></div>
</div>
<div class="sect2">
<h3 id="_viewing_the_results">Viewing the results</h3>
<div class="paragraph"><p>Start the dashboard and browse your run in the "Runs" tab.</p></div>
<div class="listingblock">
<div class="title">Starting dashboard</div>
<div class="content monospaced">
<pre>dashboard -rows 24</pre>
</div></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_writing_tests">Writing Tests</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_creating_a_new_test">Creating a new Test</h3>
<div class="paragraph"><p>The following steps will add a test "yourtestname" to your testsuite. This assumes
starting from a directory where you already have a megatest.config and
runconfigs.config.</p></div>
<div class="olist arabic"><ol class="arabic">
<li>
<p>
Create a directory tests/yourtestname
</p>
</li>
<li>
<p>
Create a file tests/yourtestname/testconfig
</p>
</li>
</ol></div>
<div class="listingblock">
<div class="title">Contents of minimal testconfig</div>
<div class="content monospaced">
<pre>[ezsteps]
stepname1 stepname.sh

# test_meta is a section for storing additional data on your test
[test_meta]
author myname
owner  myname
description An example test
reviewed never</pre>
</div></div>
<div class="paragraph"><p>This test runs a single step called "stepname1" which runs a script
"stepname.sh". Note that although it is common to put the actions
needed for a test step into a script it is not necessary.</p></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_how_to_do_things">How To Do Things</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_process_runs">Process Runs</h3>
<div class="sect3">
<h4 id="_remove_runs">Remove Runs</h4>
<div class="paragraph"><p>From the dashboard click on the button (PASS/FAIL&#8230;) for one of the tests. From the test control panel that
comes up push the clean test button. The command field will be prefilled with a template command for removing
that test. You can edit the command, for example change the argument to -testpatt to "%" to remove all tests.</p></div>
<div class="listingblock">
<div class="title">Remove the test diskperf and all it&#8217;s items</div>
<div class="content monospaced">
<pre>megatest -remove-runs -target ubuntu/nfs/none -runname ww28.1a -testpatt diskperf/% -v</pre>
</div></div>
<div class="listingblock">
<div class="title">Remove all tests for all runs and all targets</div>
<div class="content monospaced">
<pre>megatest -remove-runs -target %/%/% -runname % -testpatt % -v</pre>
</div></div>
</div>
<div class="sect3">
<h4 id="_archive_runs">Archive Runs</h4>
<div class="paragraph"><p>Megatest supports using the bup backup tool (<a href="https://bup.github.io/">https://bup.github.io/</a>) to archive your tests for efficient storage
and retrieval. Archived data can be rapidly retrieved if needed. The metadata for the run (PASS/FAIL status, run
durations, time stamps etc.) are all preserved in the megatest database.</p></div>
<div class="paragraph"><p>For setup information see the Archiving topic in the reference section of this manual.</p></div>
<div class="sect4">
<h5 id="_to_archive">To Archive</h5>
<div class="paragraph"><p>Hint: use the test control panel to create a template command by pushing the "Archive Tests" button.</p></div>
<div class="listingblock">
<div class="title">Archive a full run</div>
<div class="content monospaced">
<pre>megatest -target ubuntu/nfs/none -runname ww28.1a -archive save-remove -testpatt %</pre>
</div></div>
</div>
<div class="sect4">
<h5 id="_to_restore">To Restore</h5>
<div class="listingblock">
<div class="title">Retrieve a single test</div>
<div class="content monospaced">
<pre>megatest -target ubuntu/nfs/none -runname ww28.1a -archive restore -testpatt diskperf/%</pre>
</div></div>
<div class="paragraph"><p>Hint: You can browse the archive using bup commands directly.</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>bup -d /path/to/bup/archive ftp</pre>
</div></div>
</div>
</div>
</div>
<div class="sect2">
<h3 id="_submit_jobs_to_host_types_based_on_test_name">Submit jobs to Host Types based on Test Name</h3>
<div class="listingblock">
<div class="title">In megatest.config</div>
<div class="content monospaced">
<pre>[host-types]
general ssh #{getbgesthost general}
nbgeneral nbjob run JOBCOMMAND -log $MT_LINKTREE/$MT_TARGET/$MT_RUNNAME.$MT_TESTNAME-$MT_ITEM_PATH.lgo

[hosts]
general cubian xena

[launchers]
envsetup general
xor/%/n 4C16G
% nbgeneral

[jobtools]
launcher bsub
# if defined and not "no" flexi-launcher will bypass launcher unless there is no
# match.
flexi-launcher yes</pre>
</div></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_tricks">Tricks</h2>
<div class="sectionbody">
<div class="paragraph"><p>This section is a compendium of a various useful tricks for debugging,
configuring and generally getting the most out of Megatest.</p></div>
<div class="sect2">
<h3 id="_limiting_your_running_jobs">Limiting your running jobs</h3>
<div class="paragraph"><p>The following example will limit a test in the jobgroup "group1" to no more than 10 tests simultaneously.</p></div>
<div class="paragraph"><p>In your testconfig:</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[test_meta]
jobgroup group1</pre>
</div></div>
<div class="paragraph"><p>In your megatest.config:</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[jobgroups]
group1 10
custdes 4</pre>
</div></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_debugging_tricks">Debugging Tricks</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_examining_the_environment">Examining The Environment</h3>
<div class="sect3">
<h4 id="_test_control_panel_xterm">Test Control Panel - xterm</h4>
<div class="paragraph"><p>From the dashboard click on a test PASS/FAIL button. This brings up a test control panel. Aproximately near the center left of the
window there is a button "Start Xterm". Push this to get an xterm with the full context and environment loaded for that test. You can run
scripts or ezsteps by copying from the testconfig (hint, load up the testconfig in a separate gvim or emacs window). This is the easiest way
to debug your tests.</p></div>
</div>
<div class="sect3">
<h4 id="_during_config_file_processing">During Config File Processing</h4>
<div class="paragraph"><p>It is often helpful to know the content of variables in various
contexts as Megatest does the actions needed to run your tests. A handy technique is to force the startup of an xterm in the context being examined.</p></div>
<div class="paragraph"><p>For example, if an item list is not being generated as expected you
can inject the startup of an xterm as if it were an item:</p></div>
<div class="listingblock">
<div class="title">Original items table</div>
<div class="content monospaced">
<pre>[items]
CELLNAME [system getcellname.sh]</pre>
</div></div>
<div class="listingblock">
<div class="title">Items table modified for debug</div>
<div class="content monospaced">
<pre>[items]
DEBUG [system xterm]
CELLNAME [system getcellnames.sh]</pre>
</div></div>
<div class="paragraph"><p>When this test is run an xterm will pop up. In that xterm the
environment is exactly that in which the script "getcellnames.sh"
would run. You can now debug the script to find out why it isn&#8217;t
working as expected.</p></div>
</div>
<div class="sect3">
<h4 id="_organising_your_tests_and_tasks">Organising Your Tests and Tasks</h4>
<div class="paragraph"><p>The default location "tests" for storing tests can be extended by
adding to your tests-paths section.</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[misc]
parent #{shell dirname $(readlink -f .)}

[tests-paths]
1 #{get misc parent}/simplerun/tests</pre>
</div></div>
<div class="paragraph"><p>The above example shows how you can use addition sections in your
config file to do complex processing. By putting results of relatively
slow operations into variables the processing of your configs can be
kept fast.</p></div>
</div>
<div class="sect3">
<h4 id="_alternative_method_for_running_your_job_script">Alternative Method for Running your Job Script</h4>
<div class="listingblock">
<div class="title">Directly running job in testconfig</div>
<div class="content monospaced">
<pre>[setup]
runscript main.csh</pre>
</div></div>
<div class="paragraph"><p>The runscript method is essentially a brute force way to run scripts where the
user is responsible for setting STATE and STATUS and managing the details of running a test.</p></div>
</div>
</div>
<div class="sect2">
<h3 id="_debugging_server_problems">Debugging Server Problems</h3>
<div class="paragraph"><p>Some handy Unix commands to track down issues with servers not
communicating with your test manager processes. Please put in tickets
at <a href="https://www.kiatoa.com/fossils/megatest">https://www.kiatoa.com/fossils/megatest</a> if you have problems with
servers getting stuck.</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>sudo lsof -i
sudo netstat -lptu
sudo netstat -tulpn</pre>
</div></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_reference">Reference</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_config_file_helpers">Config File Helpers</h3>
<div class="paragraph"><p>Various helpers for more advanced config files.</p></div>
<table class="tableblock frame-topbot grid-all"
style="
width:80%;
">
<caption class="title">Table 2. Helpers</caption>
<col style="width:14%;">
<col style="width:28%;">
<col style="width:28%;">
<col style="width:28%;">
<thead>
<tr>
<th class="tableblock halign-center valign-top" >Helper                      </th>
<th class="tableblock halign-left valign-top" > Purpose                       </th>
<th class="tableblock halign-left valign-top" > Valid values            </th>
<th class="tableblock halign-left valign-top" > Comments</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">#{scheme (scheme code&#8230;)}</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Execute arbitrary scheme code</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Any valid scheme</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Value returned from the call is converted to a string and processed as part of the config file</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">#{system command}</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Execute program, inserts exit code</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Any valid Unix command</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Discards the output from the program</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">#{shell  command} or #{sh &#8230;}</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Execute program, inserts result from stdout</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Any valid Unix command</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Value returned from the call is converted to a string and processed as part of the config file</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">#{realpath path} or #{rp &#8230;}</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Replace with normalized path</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Must be a valid path</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced"></p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">#{getenv VAR} or #{gv VAR}</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Replace with content of env variable</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Must be a valid var</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced"></p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">#{get s v} or #{g s v}</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Replace with variable v from section s</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Variable must be defined before use</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced"></p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">#{rget v}</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Replace with variable v from target or default of runconfigs file</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced"></p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced"></p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock"></p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Replace with the path to the megatest testsuite area</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced"></p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced"></p></td>
</tr>
</tbody>
</table>
</div>
<div class="sect2">
<h3 id="_config_file_settings">Config File Settings</h3>
<div class="paragraph"><p>Settings in megatest.config</p></div>
</div>
<div class="sect2">
<h3 id="_config_file_additional_features">Config File Additional Features</h3>
<div class="paragraph"><p>Including output from a script as if it was inline to the config file:</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[scriptinc myscript.sh]</pre>
</div></div>
<div class="paragraph"><p>If the script outputs:</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[items]
A a b c
B d e f</pre>
</div></div>
<div class="paragraph"><p>Then the config file would effectively appear to contain an items section
exactly like the output from the script. This is useful when dynamically
creating items, itemstables and other config structures. You can see the
expansion of the call by looking in the cached files (look in your linktree
for megatest.config and runconfigs.config cache files and in your test run
areas for the expanded and cached testconfig).</p></div>
<div class="paragraph"><p>Wildcards and regexes in Targets</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[a/2/b]
VAR1 VAL1

[a/%/b]
VAR1 VAL2</pre>
</div></div>
<div class="paragraph"><p>Will result in:</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[a/2/b]
VAR1 VAL2</pre>
</div></div>
<div class="paragraph"><p>Can use either wildcard of "%" or a regular expression:</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[/abc.*def/]</pre>
</div></div>
<div class="sect3">
<h4 id="_disk_space_checks">Disk Space Checks</h4>
<div class="paragraph"><p>Some parameters you can put in the [setup] section of megatest.config:</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre># minimum space required in a run disk
minspace 10000000

# minimum space required in dbdir:
dbdir-space-required 100000

# script that takes path as parameter and returns number of bytes available:
free-space-script check-space.sh</pre>
</div></div>
</div>
<div class="sect3">
<h4 id="_trim_trailing_spaces">Trim trailing spaces</h4>
<div class="listingblock">
<div class="content monospaced">
<pre>[configf:settings trim-trailing-spaces yes]</pre>
</div></div>
</div>
<div class="sect3">
<h4 id="_job_submission_control">Job Submission Control</h4>
<div class="sect4">
<h5 id="_submit_jobs_to_host_types_based_on_test_name_2">Submit jobs to Host Types based on Test Name</h5>
<div class="listingblock">
<div class="title">In megatest.config</div>
<div class="content monospaced">
<pre>[host-types]
general   nbfake
remote    bsub

[launchers]
runfirst/sum% remote
% general

[jobtools]
launcher bsub
# if defined and not "no" flexi-launcher will bypass launcher unless
# there is no host-type match.
flexi-launcher yes</pre>
</div></div>
</div>
<div class="sect4">
<h5 id="_host_types">host-types</h5>
<div class="paragraph"><p>List of host types and the commandline to run a job on that host type.</p></div>
<div class="listingblock">
<div class="title">host-type &#8658; launch command</div>
<div class="content monospaced">
<pre>general nbfake</pre>
</div></div>
</div>
<div class="sect4">
<h5 id="_launchers">launchers</h5>
<div class="listingblock">
<div class="title">test/itempath &#8658; host-type</div>
<div class="content monospaced">
<pre>runfirst/sum% remote</pre>
</div></div>
</div>
<div class="sect4">
<h5 id="_miscellaneous_setup_items">Miscellaneous Setup Items</h5>
<div class="paragraph"><p>Attempt to rerun tests in "STUCK/DEAD", "n/a", "ZERO_ITEMS" states.</p></div>
<div class="listingblock">
<div class="title">In megatest.config</div>
<div class="content monospaced">
<pre>[setup]
reruns 5</pre>
</div></div>
<div class="paragraph"><p>Replace the default blacklisted environment variables with user supplied
list.</p></div>
<div class="paragraph"><p>Default list: USER HOME DISPLAY LS_COLORS XKEYSYMDB EDITOR MAKEFLAGS MAKEF MAKEOVERRIDES</p></div>
<div class="paragraph"><div class="title">Add a "bad" variable "PROMPT" to the variables that will be commented out</div><p>in the megatest.sh and megatest.csh files:</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[setup]
blacklistvars USER HOME DISPLAY LS_COLORS XKEYSYMDB EDITOR MAKEFLAGS PROMPT</pre>
</div></div>
</div>
<div class="sect4">
<h5 id="_run_time_limit">Run time limit</h5>
<div class="listingblock">
<div class="content monospaced">
<pre>[setup]
# this will automatically kill the test if it runs for more than 1h 2m and 3s
runtimelim 1h 2m 3s</pre>
</div></div>
</div>
</div>
</div>
<div class="sect2">
<h3 id="_tests_browser_view">Tests browser view</h3>
<div class="paragraph"><p>The tests browser (see the Run Control tab on the dashboard) has two views for displaying the tests.</p></div>
<div class="olist arabic"><ol class="arabic">
<li>
<p>
Dot (graphviz) based tree
</p>
</li>
<li>
<p>
No dot, plain listing
</p>
</li>
</ol></div>
<div class="paragraph"><p>The default is the graphviz based tree but if your tests don&#8217;t view
well in that mode then use "nodot" to turn it off.</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[setup]
nodot</pre>
</div></div>
</div>
<div class="sect2">
<h3 id="_dashboard_settings">Dashboard settings</h3>
<div class="listingblock">
<div class="title">Runs tab buttons, font and size</div>
<div class="content monospaced">
<pre>[dashboard]
btn-height x14
btn-fontsz 10
cell-width 60</pre>
</div></div>
</div>
<div class="sect2">
<h3 id="_database_settings">Database settings</h3>
<table class="tableblock frame-topbot grid-all"
style="
width:70%;
">
<caption class="title">Table 3. Database config settings in [setup] section of megatest.config</caption>
<col style="width:14%;">
<col style="width:28%;">
<col style="width:28%;">
<col style="width:28%;">
<thead>
<tr>
<th class="tableblock halign-center valign-top" >Var                       </th>
<th class="tableblock halign-left valign-top" > Purpose            </th>
<th class="tableblock halign-left valign-top" > Valid values            </th>
<th class="tableblock halign-left valign-top" > Comments</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">delay-on-busy</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Prevent concurrent access issues</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">yes|no or not defined</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Default=no, may help on some network file systems, may slow things down also.</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">daemonize</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Daemonize the server on start</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">yes|no or not defined</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Default=no</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">faststart</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">All direct file access to sqlite db files</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">yes|no or not defined</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Default=yes, suggest no for central automated systems and yes for interactive use</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">homehost</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Start servers on this host</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">&lt;hostname&gt;</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Defaults to local host</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">hostname</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Hostname to bind to</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">&lt;hostname&gt;|-</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">On multi-homed hosts allows binding to specific hostname</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">lowport</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Start searching for a port at this portnum</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">32768</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced"></p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">required</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Server required</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">yes|no or not defined</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Default=no, force start of server always</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">server-query-threshold</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Start server when queries take longer than this</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">number in milliseconds</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Default=300</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">timeout</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">http api timeout</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">number in hours</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Default is 1 minute, do not change</p></td>
</tr>
</tbody>
</table>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_the_testconfig_file">The testconfig File</h2>
<div class="sectionbody">
<div class="sect2">
<h3 id="_setup_section">Setup section</h3>
<div class="sect3">
<h4 id="_header">Header</h4>
<div class="listingblock">
<div class="content monospaced">
<pre>[setup]</pre>
</div></div>
<div class="paragraph"><p>The runscript method is a brute force way to run scripts where the
user is responsible for setting STATE and STATUS</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>runscript main.csh</pre>
</div></div>
</div>
</div>
<div class="sect2">
<h3 id="_requirements_section">Requirements section</h3>
<div class="listingblock">
<div class="title">Header</div>
<div class="content monospaced">
<pre>[requirements]</pre>
</div></div>
<div class="sect3">
<h4 id="_wait_on_other_tests">Wait on Other Tests</h4>
<div class="listingblock">
<div class="content monospaced">
<pre># A normal waiton waits for the prior tests to be COMPLETED
# and PASS, CHECK or WAIVED
waiton test1 test2</pre>
</div></div>
</div>
<div class="sect3">
<h4 id="_mode">Mode</h4>
<div class="paragraph"><p>The default (i.e. if mode is not specified) is normal. All pre-dependent tests
must be COMPLETED and PASS, CHECK or WAIVED before the test will start</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[requirements]
mode   normal</pre>
</div></div>
<div class="paragraph"><p>The toplevel mode requires only that the prior tests are COMPLETED.</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[requirements]
mode toplevel</pre>
</div></div>
<div class="paragraph"><p>A item based waiton will start items in a test when the same-named
item is COMPLETED and PASS, CHECK or WAIVED in the prior test. This
was historically called "itemwait" mode. The terms "itemwait" and
"itemmatch" are synonyms.</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[requirements]
waiton precedingtest
mode itemmatch</pre>
</div></div>
</div>
</div>
<div class="sect2">
<h3 id="_overriding_enviroment_variables">Overriding Enviroment Variables</h3>
<div class="paragraph"><p>Override variables before starting the test. Can include files (perhaps generated by megatest -envdelta or similar).</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[pre-launch-env-vars]
VAR1 value1

# Get some generated settings
[include ../generated-vars.config]

# Use this trick to unset variables
#{scheme (unsetenv "FOOBAR")}</pre>
</div></div>
</div>
<div class="sect2">
<h3 id="_itemmap_handling">Itemmap Handling</h3>
<div class="paragraph"><p>For cases were the dependent test has a similar but not identical
itempath to the downstream test an itemmap can allow for itemwait/itemmatch
mode by specifying rules on how to map the waiton&#8217;s item name to the current test&#8217;s item name.</p></div>
<div class="listingblock">
<div class="title">example for removing part of itemmap for waiton test (eg: item <span class="monospaced">foo-x/bar</span> depends on waiton&#8217;s item <span class="monospaced">y/bar</span>)</div>
<div class="content monospaced">
<pre>[requirements]
mode itemwait
waiton precedingtest
# itemmap &lt;item pattern for this test&gt;  &lt;item replacement pattern for waiton test&gt;
itemmap .*x/ y/</pre>
</div></div>
<div class="listingblock">
<div class="title">example for removing part of itemmap for waiton test (eg: item <span class="monospaced">foo/bar/baz</span> in this test depends on waiton&#8217;s item <span class="monospaced">baz</span>)</div>
<div class="content monospaced">
<pre># ## pattern replacement notes
#
# ## Example
# ## Remove everything up to the last /
[requirements]
mode itemwait
waiton precedingtest
# itemmap &lt;item pattern for this test&gt; &lt;nothing here indicates removal&gt;
itemmap .*/</pre>
</div></div>
<div class="listingblock">
<div class="title">example replacing part of itemmap for (eg: item <span class="monospaced">foo/1234</span> will imply waiton&#8217;s item <span class="monospaced">bar/1234</span>)</div>
<div class="content monospaced">
<pre>#
# ## Example
# ## Replace foo/ with bar/
[requirements]
mode itemwait
waiton precedingtest
# itemmap &lt;item pattern for this test&gt;  &lt;item replacement pattern for waiton test&gt;
itemmap foo/ bar/</pre>
</div></div>
<div class="listingblock">
<div class="title">example for backreference (eg: item <span class="monospaced">foo23/thud</span> will imply waiton&#8217;s item <span class="monospaced">num-23/bar/thud</span></div>
<div class="content monospaced">
<pre>#
# ## Example
# ## can use \{number} in replacement pattern to backreference a (capture) from matching pattern similar to sed or perl
[requirements]
mode itemwait
waiton precedingtest
# itemmap &lt;item pattern for this test&gt;  &lt;item replacement pattern for waiton test&gt;
itemmap foo(\d+)/ num-\1/bar/</pre>
</div></div>
<div class="listingblock">
<div class="title">example multiple itemmaps</div>
<div class="content monospaced">
<pre># multi-line; matches are applied in the listed order
# The following would map:
#   a123b321 to b321fooa123 then to 321fooa123p
#
[requirements]
mode itemwait
waiton precedingtest
itemmap (a\d+)(b\d+) \2foo\1
  b(.*) \1p</pre>
</div></div>
<div class="sect3">
<h4 id="_complex_mapping">Complex mapping</h4>
<div class="paragraph"><p>Complex mappings can be handled with a separate [itemmap] section (instead if an itemmap line in the [requirements] section)</p></div>
<div class="paragraph"><p>Each line in an itemmap section starts with a waiton test name followed by an itemmap expression</p></div>
<div class="listingblock">
<div class="title">eg: The following causes waiton test A item <span class="monospaced">bar/1234</span> to run when our test&#8217;s <span class="monospaced">foo/1234</span> item is requested as well as causing waiton test B&#8217;s <span class="monospaced">blah</span> item to run when our test&#8217;s <span class="monospaced">stuff/blah</span> item is requested</div>
<div class="content monospaced">
<pre>[itemmap]
A foo/ bar/
B stuff/</pre>
</div></div>
</div>
<div class="sect3">
<h4 id="_complex_mapping_example">Complex mapping example</h4>
<div class="imageblock">
<div class="content">
<img src="complex-itemmap.png" alt="complex-itemmap.png">
</div>
</div>
<div class="paragraph"><p>We accomplish this by configuring the testconfigs of our tests C D and E as follows:</p></div>
<div class="listingblock">
<div class="title">Testconfig for Test E has</div>
<div class="content monospaced">
<pre>[requirements]
waiton C
mode itemwait
itemmap (\d+)/res \1/bb</pre>
</div></div>
<div class="listingblock">
<div class="title">Testconfig for Test D has</div>
<div class="content monospaced">
<pre>[requirements]
waiton C
mode itemwait
itemmap (\d+)/res \1/aa</pre>
</div></div>
<div class="listingblock">
<div class="title">Testconfig for Test C has</div>
<div class="content monospaced">
<pre>[requirements]
waiton A B
mode itemwait

[itemmap]
A (\d+)/aa aa/\1
B (\d+)/bb bb/\1</pre>
</div></div>
<div class="listingblock">
<div class="title">Testconfigs for Test B and Test A have no waiton or itemmap configured</div>
<div class="content monospaced">
<pre></pre>
</div></div>
<div class="olist arabic"><div class="title">Walk through one item&#8201;&#8212;&#8201;we want the following to happen for testpatt <span class="monospaced">D/1/res</span> (see blue boxes in complex itemmaping figure above):</div><ol class="arabic">
<li>
<p>
eg from command line <span class="monospaced">megatest -run -testpatt D/1/res -target mytarget -runname myrunname</span>
</p>
</li>
<li>
<p>
Full list to be run is now: <span class="monospaced">D/1/res</span>
</p>
</li>
<li>
<p>
Test D has a waiton - test C.  Test D&#8217;s itemmap rule <span class="monospaced">itemmap (\d&plus;)/res \1/aa</span> &#8594;  causes <span class="monospaced">C/1/aa</span> to run before <span class="monospaced">D/1/res</span>
</p>
</li>
<li>
<p>
Full list to be run is now: <span class="monospaced">D/1/res</span>, <span class="monospaced">C/1/aa</span>
</p>
</li>
<li>
<p>
Test C was a waiton - test A. Test C&#8217;s rule <span class="monospaced">A (\d&plus;)/aa aa/\1</span> &#8594; causes <span class="monospaced">A/aa/1</span> to run before <span class="monospaced">C/1/aa</span>
</p>
</li>
<li>
<p>
Full list to be run is now: <span class="monospaced">D/1/res</span>, <span class="monospaced">C/1/aa</span>, <span class="monospaced">A/aa/1</span>
</p>
</li>
<li>
<p>
Test A has no waitons.  All waitons of all tests in full list have been processed.  Full list is finalized.
</p>
</li>
</ol></div>
</div>
<div class="sect3">
<h4 id="_dynamic_flow_dependency_tree">Dynamic Flow Dependency Tree</h4>
<div class="listingblock">
<div class="title">Autogeneration waiton list for dynamic flow dependency trees</div>
<div class="content monospaced">
<pre>[requirements]
# With a toplevel test you may wish to generate your list
# of tests to run dynamically
#
waiton #{shell get-valid-tests-to-run.sh}</pre>
</div></div>
</div>
<div class="sect3">
<h4 id="_run_time_limit_2">Run time limit</h4>
<div class="listingblock">
<div class="content monospaced">
<pre>[requirements]
runtimelim 1h 2m 3s  # this will automatically kill the test if it runs for more than 1h 2m and 3s</pre>
</div></div>
</div>
<div class="sect3">
<h4 id="_skip">Skip</h4>
<div class="paragraph"><p>A test with a skip section will conditional skip running.</p></div>
<div class="listingblock">
<div class="title">Skip section example</div>
<div class="content monospaced">
<pre>[skip]
prevrunning x
# rundelay 30m 15s</pre>
</div></div>
</div>
<div class="sect3">
<h4 id="_skip_on_still_running_tests">Skip on Still-running Tests</h4>
<div class="listingblock">
<div class="content monospaced">
<pre># NB// If the prevrunning line exists with *any* value the test will
# automatically SKIP if the same-named test is currently RUNNING. The
# "x" can be any string. Comment out the prevrunning line to turn off
# skip.

[skip]
prevrunning x</pre>
</div></div>
</div>
<div class="sect3">
<h4 id="_skip_if_a_file_exists">Skip if a File Exists</h4>
<div class="listingblock">
<div class="content monospaced">
<pre>[skip]
fileexists /path/to/a/file # skip if /path/to/a/file exists</pre>
</div></div>
</div>
<div class="sect3">
<h4 id="_skip_if_test_ran_more_recently_than_specified_time">Skip if test ran more recently than specified time</h4>
<div class="listingblock">
<div class="title">Skip if this test has been run in the past fifteen minutes and 15 seconds.</div>
<div class="content monospaced">
<pre>[skip]
rundelay 15m 15s</pre>
</div></div>
</div>
<div class="sect3">
<h4 id="_disks">Disks</h4>
<div class="paragraph"><p>A disks section in testconfig will override the disks section in
megatest.config. This can be used to allocate disks on a per-test or per item
basis.</p></div>
</div>
<div class="sect3">
<h4 id="_controlled_waiver_propagation">Controlled waiver propagation</h4>
<div class="paragraph"><p>If test is FAIL and previous test in run with same MT_TARGET is WAIVED then apply the following rules from the testconfig:
If a waiver check is specified in the testconfig apply the check and if it passes then set this FAIL to WAIVED</p></div>
<div class="paragraph"><p>Waiver check has two parts, 1) a list of waiver, rulename, filepatterns and 2) the rulename script spec (note that "diff" and "logpro" are predefined)</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>###### EXAMPLE FROM testconfig #########
# matching file(s) will be diff'd with previous run and logpro applied
# if PASS or WARN result from logpro then WAIVER state is set
#
[waivers]
# logpro_file    rulename      input_glob
waiver_1         logpro        lookittmp.log

[waiver_rules]

# This builtin rule is the default if there is no &lt;waivername&gt;.logpro file
# diff   diff %file1% %file2%

# This builtin rule is applied if a &lt;waivername&gt;.logpro file exists
# logpro diff %file1% %file2% | logpro %waivername%.logpro %waivername%.html</pre>
</div></div>
</div>
</div>
<div class="sect2">
<h3 id="_ezsteps">Ezsteps</h3>
<div class="listingblock">
<div class="title">Example ezsteps with logpro rules</div>
<div class="content monospaced">
<pre>[ezsteps]
lookittmp   ls /tmp

[logpro]
lookittmp ;; Note: config file format supports multi-line entries where leading whitespace is removed from each line
  ;;     a blank line indicates the end of the block of text
  (expect:required in "LogFileBody" &gt; 0 "A file name that should never exist!" #/This is a awfully stupid file name that should never be found in the temp dir/)</pre>
</div></div>
<div class="paragraph"><p>To transfer the environment to the next step you can do the following:</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>$MT_MEGATEST -env2file .ezsteps/${stepname}</pre>
</div></div>
</div>
<div class="sect2">
<h3 id="_triggers">Triggers</h3>
<div class="paragraph"><p>In your testconfig or megatest.config triggers can be specified</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[triggers]

# Call script running.sh when test goes to state=RUNNING, status=PASS
RUNNING/PASS running.sh

# Call script running.sh any time state goes to RUNNING
RUNNING/ running.sh

# Call script onpass.sh any time status goes to PASS
PASS/ onpass.sh</pre>
</div></div>
<div class="paragraph"><p>Scripts called will have; test-id test-rundir trigger test-name item-path state status event-time, added to the commandline.</p></div>
<div class="paragraph"><p>HINT</p></div>
<div class="paragraph"><p>To start an xterm (useful for debugging), use a command line like the following:</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[triggers]
COMPLETED/ xterm -e bash -s --</pre>
</div></div>
<div class="admonitionblock">
<table><tr>
<td class="icon">
<img src="/nfs/pdx/disks/ice.disk.002/icfadm/pkgs/asciidoc/8.6.7/images/icons/note.png" alt="Note">
</td>
<td class="content">There is a trailing space after the --</td>
</tr></table>
</div>
<div class="paragraph"><p>There are a number of environment variables available to the trigger script
but since triggers can be called in various contexts not all variables are
available at all times. The trigger script should check for the variable and
fail gracefully if it doesn&#8217;t exist.</p></div>
<table class="tableblock frame-topbot grid-all"
style="
width:90%;
">
<caption class="title">Table 4. Environment variables visible to the trigger script</caption>
<col style="width:33%;">
<col style="width:66%;">
<thead>
<tr>
<th class="tableblock halign-center valign-top" >Variable             </th>
<th class="tableblock halign-left valign-top" > Purpose</th>
</tr>
</thead>
<tbody>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">MT_TEST_RUN_DIR</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">The directory where Megatest ran this test</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">MT_CMDINFO</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Encoded command data for the test</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">MT_DEBUG_MODE</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Used to pass the debug mode to nested calls to Megatest</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">MT_RUN_AREA_HOME</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Megatest home area</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">MT_TESTSUITENAME</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">The name of this testsuite or area</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">MT_TEST_NAME</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">The name of this test</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">MT_ITEM_INFO</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">The variable and values for the test item</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">MT_MEGATEST</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Which Megatest binary is being used by this area</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">MT_TARGET</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">The target variable values, separated by <em>/</em></p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">MT_LINKTREE</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">The base of the link tree where all run tests can be found</p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">MT_ITEMPATH</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">The values of the item path variables, separated by <em>/</em></p></td>
</tr>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">MT_RUNNAME</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">The name of the run</p></td>
</tr>
</tbody>
</table>
</div>
<div class="sect2">
<h3 id="_override_the_toplevel_html_file">Override the Toplevel HTML File</h3>
<div class="paragraph"><p>Megatest generates a simple html file summary for top level tests of
iterated tests. The generation can be overridden. NOTE: the output of
the script is captured from stdout to create the html.</p></div>
<div class="listingblock">
<div class="title">For test "runfirst" override the toplevel generation with a script "mysummary.sh"</div>
<div class="content monospaced">
<pre># Override the rollup for specific tests
[testrollup]
runfirst mysummary.sh</pre>
</div></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_archiving_setup">Archiving Setup</h2>
<div class="sectionbody">
<div class="paragraph"><p>In megatest.config add the following sections:</p></div>
<div class="listingblock">
<div class="title">megatest.config</div>
<div class="content monospaced">
<pre>[archive]
# where to get bup executable
# bup /path/to/bup

[archive-disks]

# Archives will be organised under these paths like this:
#  &lt;testsuite&gt;/&lt;creationdate&gt;
# Within the archive the data is structured like this:
#  &lt;target&gt;/&lt;runname&gt;/&lt;test&gt;/
archive0 /mfs/myarchive-data/adisk1</pre>
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_handling_environment_variables">Handling Environment Variables</h2>
<div class="sectionbody">
<div class="paragraph"><p>It is often necessary to capture and or manipulate environment
variables. Megatest has some facilities built in to help.</p></div>
<div class="sect2">
<h3 id="_capture_variables">Capture variables</h3>
<div class="listingblock">
<div class="title">Commands</div>
<div class="content monospaced">
<pre># capture the current enviroment into a db called envdat.db under
# the context "before"
megatest -envcap before

# capture the current environment into a db called startup.db with
# context "after"
megatest -envcap after startup.db

# write the diff from before to after
megatest -envdelta before-after -dumpmode bash</pre>
</div></div>
<div class="paragraph"><p>Dump modes include bash, csh and config. You can include config data
into megatest.config or runconfigs.config.</p></div>
<div class="listingblock">
<div class="title">Example of generating and using config data</div>
<div class="content monospaced">
<pre>megatest -envcap original
# do some stuff here
megatest -envcap munged
megatest -envdelta original-munged -dumpmode ini -o modified.config</pre>
</div></div>
<div class="paragraph"><p>Then in runconfigs.config</p></div>
<div class="listingblock">
<div class="title">Example of using modified.config in a testconfig</div>
<div class="content monospaced">
<pre>cat testconfig
[pre-launch-env-vars]
[include modified.config]</pre>
</div></div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_managing_old_runs">Managing Old Runs</h2>
<div class="sectionbody">
<div class="paragraph"><p>It is often desired to keep some older runs around but this must be balanced with the costs of disk space.</p></div>
<div class="olist arabic"><ol class="arabic">
<li>
<p>
Use -remove-keep
</p>
</li>
<li>
<p>
Use -archive (can also be done from the -remove-keep interface)
</p>
</li>
<li>
<p>
use -remove-runs with -keep-records
</p>
</li>
</ol></div>
<div class="listingblock">
<div class="title">For each target, remove all runs but the most recent 3 if they are over 1 week old</div>
<div class="content monospaced">
<pre># use -precmd 'sleep 5;nbfake' to limit overloading the host computer but to allow the removes to run in parallel.
megatest -actions print,remove-runs -remove-keep 3 -target %/%/%/% -runname % -age 1w -precmd 'sleep 5;nbfake'"</pre>
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_nested_runs">Nested Runs</h2>
<div class="sectionbody">
<div class="paragraph"><p>A Megatest test can run a full Megatest run in either the same
Megatest area or in another area. This is a powerful way of chaining
complex suites of tests and or actions.</p></div>
<div class="paragraph"><p>If you are not using the current area you can use ezsteps to retrieve
and setup the sub-Megatest run area.</p></div>
<div class="paragraph"><p>In the testconfig:</p></div>
<div class="listingblock">
<div class="content monospaced">
<pre>[subrun]

# Required: wait for the run or just launch it
#           if no then the run will be an automatic PASS irrespective of the actual result
runwait yes|no

# Optional: where to execute the run. Default is the current runarea
runarea /some/path/to/megatest/area

# Optional: method to use to determine pass/fail status of the run
#   auto (default) - roll up the net state/status of the sub-run
#   logpro         - use the provided logpro rules, happens automatically if there is a logpro section
# passfail auto|logpro
# Example of logpro:
passfail logpro

# Optional:
logpro ;; if this section exists then logpro is used to determine pass/fail
  (expect:required in "LogFileBody" &gt;= 1 "At least one pass" #/PASS/)
  (expect:fail     in "LogFileBody"  = 0 "No FAILs allowed"  #/FAIL/)

# Optional: target translator, default is to use the parent target
target #{shell somescript.sh}

# Optional: runname translator/generator, default is to use the parent runname
runname #{somescript.sh}

# Optional: testpatt spec, default is to first look for TESTPATT spec from runconfigs unless there is a contour spec
testpatt %/item1,test2

# Optional: contour spec, use the named contour from the megatest.config contour spec
contour contourname ### NOTE: Not implemented yet! Let us know if you need this feature.

# Optional: mode-patt, use this spec for testpatt from runconfigs
mode-patt TESTPATT

# Optional: tag-expr, use this tag-expr to select tests
tag-expr quick

# Optional: (not yet implemented), propagate these actions from the parent
#           test
#   Note// default is % for all
propagate remove-runs archive ...</pre>
</div></div>
</div>
</div>
<div class="sect1">
<h2 id="_programming_api">Programming API</h2>
<div class="sectionbody">
<div class="paragraph"><p>These routines can be called from the megatest repl.</p></div>
<table class="tableblock frame-topbot grid-all"
style="
width:70%;
">
<caption class="title">Table 5. API Keys Related Calls</caption>
<col style="width:14%;">
<col style="width:28%;">
<col style="width:28%;">
<col style="width:28%;">
<thead>
<tr>
<th class="tableblock halign-center valign-top" >API Call                        </th>
<th class="tableblock halign-left valign-top" > Purpose comments   </th>
<th class="tableblock halign-left valign-top" > Returns                 </th>
<th class="tableblock halign-left valign-top" > Comments</th>
</tr>
</thead>
<tfoot>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">(rmt:get-key-val-pairs run-id)</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced"></p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">#t=success/#f=fail</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">Works only if the server is still reachable</p></td>
</tr>
</tfoot>
<tbody>
<tr>
<td class="tableblock halign-center valign-top" ><p class="tableblock">(rmt:get-keys run-id)</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced"></p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced">( key1 key2 &#8230; )</p></td>
<td class="tableblock halign-left valign-top" ><p class="tableblock monospaced"></p></td>
</tr>
</tbody>
</table>
</div>
</div>
<div class="sect1">
<h2 id="_megatest_internals">Megatest Internals</h2>
<div class="sectionbody">
<div class="imageblock graphviz">
<div class="content">
<img src="server.png" alt="server.png">
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_example_index">Example Index</h2>
<div class="sectionbody">
</div>
</div>
</div>
<div id="footnotes"><hr></div>
<div id="footer">
<div id="footer-text">
Version 1.0<br>
Last updated 2017-07-17 14:05:11 PDT
</div>
</div>
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