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Clarify that parameter generator does not evaluate immediately

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This aims to avoid confusion as to what kinds of computations are valid inside
a parameter generator expression, calling out flags as a supported use case.

PiperOrigin-RevId: 483397027
Change-Id: I2d036fae95120d617f30a5566ea7498ce1f9bfb6
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Abseil Team 2022-10-24 09:01:26 -07:00 committed by Copybara-Service
parent e07617d6c6
commit 03597a01ee
1 changed files with 5 additions and 0 deletions
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docs/advanced.md
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@ -1095,6 +1095,11 @@ instantiation of the test suite. The next argument is the name of the test
pattern, and the last is the pattern, and the last is the
[parameter generator](reference/testing.md#param-generators). [parameter generator](reference/testing.md#param-generators).
The parameter generator expression is not evaluated until GoogleTest is
initialized (via `InitGoogleTest()`). Any prior initialization done in the
`main` function will be accessible from the parameter generator, for example,
the results of flag parsing.
You can instantiate a test pattern more than once, so to distinguish different You can instantiate a test pattern more than once, so to distinguish different
instances of the pattern, the instantiation name is added as a prefix to the instances of the pattern, the instantiation name is added as a prefix to the
actual test suite name. Remember to pick unique prefixes for different actual test suite name. Remember to pick unique prefixes for different