Introduction

The script runs the tests in the specified images (with default startup preferences), combines the output into a single XML files, filter test failures, and write two summary text files:

• The tests which failed in "raw" format, meaning as reported by the SUnit reporter.
• The tests which failed in "Class>>selector" format, with one line per failure.

These output files are timestamped so they can be diffed to see when a failure was introduced.

Sample output

This is a sample output for the "raw" format:

...
TestFailure
Given Collections do not match!
	additions : #('NewTools-SpTextPresenterDecorators')
	missing: #()

SystemDependenciesTest(TestAsserter)>>assert:description:resumable:
SystemDependenciesTest(TestAsserter)>>assert:description:
SystemDependenciesTest(TestAsserter)>>assertCollection:hasSameElements:
SystemDependenciesTest>>testExternalIDEDependencies
SystemDependenciesTest(TestCase)>>performTest
		

TestFailure
Given Collections do not match!
	additions : #('NewTools-Morphic')
	missing: #()

SystemDependenciesTest(TestAsserter)>>assert:description:resumable:
SystemDependenciesTest(TestAsserter)>>assert:description:
SystemDependenciesTest(TestAsserter)>>assertCollection:hasSameElements:
SystemDependenciesTest>>testExternalSpec2Dependencies
SystemDependenciesTest(TestCase)>>performTest
...		

This is a sample output for the "Class>>selector" format:

				formatClass: class class ] in RBFormatterTest>>testCoreSystem
RBFormatterTest>>testCoreSystem
ProperMethodCategorizationTest>>testNoUncategorizedMethods
ReleaseTest>>testPharoVersionFileExists
ReleaseTest>>testThatThereAreNoSelectorsRemainingThatAreSentButNotImplemented
SpMorphicBoxLayoutTest>>testBeHomogeneous
SpMorphicBoxLayoutTest>>testBeHomogeneousWorksWhenContractingWindow
SpMorphicBoxLayoutTest>>testBeHomogeneousWorksWhenExpandingWindow
SystemDependenciesTest>>testExternalBasicToolsDependencies
SystemDependenciesTest>>testExternalIDEDependencies
SystemDependenciesTest>>testExternalSpec2Dependencies
SystemDependenciesTest>>testExternalUIDependencies

Usage

The easiest way to execute it is to specify the image file and it will use the VM in the same directory as the image:

./bisect.sh -i Pharo.image

You can also execute the script specifying the full path to image and VM (e.g. for PharoLauncher)

/bisect.sh -i /Users/mvs/Documents/Pharo/images/Pharo12-SNAPSHOT.build.1243.sha.e4b8f88.arch.64bit/Pharo12-SNAPSHOT.build.1243.sha.e4b8f88.arch.64bit.image -p /Users/mvs/Documents/Pharo/vms/120-x64/Pharo.app/Contents/MacOS/Pharo

Prior to each execution, artifact files from previous execution are removed from the directory where the script is ran.

Known issues

Sometimes the XML output written while executing tests is "malformed", which causes the xpath script to filter the failure nodes to fail. However, I couldn't find so far the cause of this behavior.

This is a sample output during a XPath parse failure:

not well-formed (invalid token) at line 19658, column 130, byte 2605549:
    <testcase classname="FileSystem.Core.Tests.DeleteVisitorTest" name="testBeta" time="0.0"/>
    <testcase classname="FileSystem.Core.Tests.DeleteVisitorTest" name="testSymbolicLink" time="0.841">
      <failure type="TestFailure" message="Got File @ /tmp/testSymbolLinkTargetPath105714316634777590822214543053449082639dir/au�( instead of File @ /tmp/testSymbolLinkTargetPath105714316634777590822214543053449082639dir/a.">
=================================================================================================================================^
TestFailure
Got File @ /tmp/testSymbolLinkTargetPath105714316634777590822214543053449082639dir/au�( instead of File @ /tmp/testSymbolLinkTargetPath105714316634777590822214543053449082639dir/a.
 at /System/Library/Perl/Extras/5.30/darwin-thread-multi-2level/XML/Parser.pm line 187.