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52 lines
1.9 KiB
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52 lines
1.9 KiB
Markdown
<a id="top"></a>
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# Frequently Asked Questions (FAQ)
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**Contents**<br>
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[How do I run global setup/teardown only if tests will be run?](#how-do-i-run-global-setupteardown-only-if-tests-will-be-run)<br>
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[How do I clean up global state between running different tests?](#how-do-i-clean-up-global-state-between-running-different-tests)<br>
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[Why cannot I derive from the built-in reporters?](#why-cannot-i-derive-from-the-built-in-reporters)<br>
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[What is Catch2's ABI stability policy?](#what-is-catch2s-abi-stability-policy)<br>
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[What is Catch2's API stability policy?](#what-is-catch2s-api-stability-policy)<br>
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## How do I run global setup/teardown only if tests will be run?
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Write a custom [event listener](event-listeners.md#top) and place the
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global setup/teardown code into the `testRun*` events.
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## How do I clean up global state between running different tests?
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Write a custom [event listener](event-listeners.md#top) and place the
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cleanup code into either `testCase*` or `testCasePartial*` events,
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depending on how often the cleanup needs to happen.
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## Why cannot I derive from the built-in reporters?
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They are not made to be overriden, in that we do not attempt to maintain
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a consistent internal state if a member function is overriden, and by
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forbidding users from using them as a base class, we can refactor them
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as needed later.
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## What is Catch2's ABI stability policy?
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Catch2 provides no ABI stability guarantees whatsoever. Catch2 provides
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rich C++ interface, and trying to freeze its ABI would take a lot of
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pointless work.
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Catch2 is not designed to be distributed as dynamic library, and you
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should really be able to compile everything with the same compiler binary.
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## What is Catch2's API stability policy?
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Catch2 follows [semver](https://semver.org/) to the best of our ability.
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This means that we will not knowingly make backwards-incompatible changes
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without incrementing the major version number.
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---
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[Home](Readme.md#top)
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