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Adds support for a --gtest_fail_if_no_test_linked flag

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to fail the test program if no test case is linked in
(a common programmer mistake).

PiperOrigin-RevId: 730571311
Change-Id: I1dab04adfe35581274d0b4ec79a017014d50e1ea
This commit is contained in:
Zhanyong Wan
2025-02-24 13:17:47 -08:00
committed by Copybara-Service
parent 3fbe4db9a3
commit 54501746a6
6 changed files with 270 additions and 16 deletions
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docs/advanced.md
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@@ -1929,6 +1929,20 @@ the `--gtest_also_run_disabled_tests` flag or set the
You can combine this with the `--gtest_filter` flag to further select which
disabled tests to run.
### Enforcing Having At Least One Test Case
A not uncommon programmer mistake is to write a test program that has no test
case linked in. This can happen, for example, when you put test case definitions
in a library and the library is not marked as "always link".
To catch such mistakes, run the test program with the
`--gtest_fail_if_no_test_linked` flag or set the `GTEST_FAIL_IF_NO_TEST_LINKED`
environment variable to a value other than `0`. Now the program will fail if no
test case is linked in.
Note that *any* test case linked in makes the program valid for the purpose of
this check. In particular, even a disabled test case suffices.
### Repeating the Tests
Once in a while you'll run into a test whose result is hit-or-miss. Perhaps it