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TEST_CASE_PERSISTENT_FIXTURE: A new fixture macro for allowing persistent fixtures throughout a TEST_CASE (#2885)

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This PR introduces a new `TEST_CASE` macro called `TEST_CASE_PERSISTENT_FIXTURE`. `TEST_CASE_PERSISTENT_FIXTURE` offers the same functionality as `TEST_CASE_METHOD` except for one difference. The object on which the test method is invoked is only created once for all invocations of the test case. The object is created just after the `testCaseStarting` event is broadcast and the object is destroyed just before the `testCaseEnding` event is broadcast.

The main motivation for this new functionality is to allow `TEST_CASE`s to do expensive setup and teardown once per `TEST_CASE`, without having to resort to abusing event listeners or static function variables with manual initialization.


Implements #1602

---------

Co-authored-by: Martin Hořeňovský <martin.horenovsky@gmail.com>
This commit is contained in:
Keith Stockdale
2024-08-05 16:01:41 +01:00
committed by GitHub
parent 33e24b14fc
commit f7cd0ba051
31 changed files with 643 additions and 62 deletions
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54
tests/SelfTest/Baselines/xml.sw.multi.approved.txt
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@@ -2056,6 +2056,56 @@ Nor would this
</Expression>
<OverallResult success="true" skips="0"/>
</TestCase>
<TestCase name="A TEST_CASE_PERSISTENT_FIXTURE based test run that fails" tags="[.][class][failing]" filename="tests/<exe-name>/UsageTests/Class.tests.cpp" >
<Section name="First partial run" filename="tests/<exe-name>/UsageTests/Class.tests.cpp" >
<Expression success="true" type="REQUIRE" filename="tests/<exe-name>/UsageTests/Class.tests.cpp" >
<Original>
m_a++ == 0
</Original>
<Expanded>
0 == 0
</Expanded>
</Expression>
<OverallResults successes="1" failures="0" expectedFailures="0" skipped="false"/>
</Section>
<Section name="Second partial run" filename="tests/<exe-name>/UsageTests/Class.tests.cpp" >
<Expression success="false" type="REQUIRE" filename="tests/<exe-name>/UsageTests/Class.tests.cpp" >
<Original>
m_a == 0
</Original>
<Expanded>
1 == 0
</Expanded>
</Expression>
<OverallResults successes="0" failures="1" expectedFailures="0" skipped="false"/>
</Section>
<OverallResult success="false" skips="0"/>
</TestCase>
<TestCase name="A TEST_CASE_PERSISTENT_FIXTURE based test run that succeeds" tags="[class]" filename="tests/<exe-name>/UsageTests/Class.tests.cpp" >
<Section name="First partial run" filename="tests/<exe-name>/UsageTests/Class.tests.cpp" >
<Expression success="true" type="REQUIRE" filename="tests/<exe-name>/UsageTests/Class.tests.cpp" >
<Original>
m_a++ == 0
</Original>
<Expanded>
0 == 0
</Expanded>
</Expression>
<OverallResults successes="1" failures="0" expectedFailures="0" skipped="false"/>
</Section>
<Section name="Second partial run" filename="tests/<exe-name>/UsageTests/Class.tests.cpp" >
<Expression success="true" type="REQUIRE" filename="tests/<exe-name>/UsageTests/Class.tests.cpp" >
<Original>
m_a == 1
</Original>
<Expanded>
1 == 1
</Expanded>
</Expression>
<OverallResults successes="1" failures="0" expectedFailures="0" skipped="false"/>
</Section>
<OverallResult success="true" skips="0"/>
</TestCase>
<TestCase name="A Template product test case - Foo&lt;float>" tags="[product][template]" filename="tests/<exe-name>/UsageTests/Misc.tests.cpp" >
<Expression success="true" type="REQUIRE" filename="tests/<exe-name>/UsageTests/Misc.tests.cpp" >
<Original>
@@ -21831,6 +21881,6 @@ Approx( -1.95996398454005449 )
</Section>
<OverallResult success="true" skips="0"/>
</TestCase>
<OverallResults successes="2074" failures="146" expectedFailures="35" skips="12"/>
<OverallResultsCases successes="311" failures="85" expectedFailures="14" skips="6"/>
<OverallResults successes="2077" failures="147" expectedFailures="35" skips="12"/>
<OverallResultsCases successes="312" failures="86" expectedFailures="14" skips="6"/>
</Catch2TestRun>