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Bump `cmake_minimum_required` to 3.5.

Delete conditional branches exclusive to older versions.

Notable dependents:
  - github.com/grpc/grpc >= 3.5.1
  - github.com/abseil/abseil-cpp >= 3.5
  - github.com/googleapis/google-cloud-cpp >= 3.5

On the other hand, github.com/protocolbuffers/protobuf is >= 3.1.3, but it only depends on GoogleTest 1.10.

Fixes #3523

PiperOrigin-RevId: 392073834

Standardize access to GoogleTest flags on GTEST_FLAG_GET/GTEST_FLAG_SET

Custom implementations can decide how access to flags is performed depending on the implementation of flags being used.

PiperOrigin-RevId: 391971115

PiperOrigin-RevId: 390486428

PiperOrigin-RevId: 390467627

Identify bad specs of the type (const something, ...).

PiperOrigin-RevId: 390346843

Remove deprecated/unsupported scripts

PiperOrigin-RevId: 389873391

Fix a Python 2 to 3 issue

PiperOrigin-RevId: 389720056

PiperOrigin-RevId: 389163232

Format documentation

PiperOrigin-RevId: 388592443

Introduce a new matcher for unescaping Base-64 strings to gmock.

PiperOrigin-RevId: 388471904

Standardize access to GoogleTest flags on GTEST_FLAG_GET/GTEST_FLAG_SET

Custom implementations can decide how access to flags is performed depending on the implementation of flags being used.

PiperOrigin-RevId: 388181424

Proliferation of inclusive language.

PiperOrigin-RevId: 387535677

PiperOrigin-RevId: 387381497

PiperOrigin-RevId: 386888057

Delete GOOGLETEST_CM.* tags from C++ code.

PiperOrigin-RevId: 386268534

Fix include guards in gen_pred_test.py

PiperOrigin-RevId: 386052814

PiperOrigin-RevId: 385627491

Run buildifier on WORKSPACE
Fixes #3483

PiperOrigin-RevId: 385610473

PiperOrigin-RevId: 384913062

Remove unneeded using ::std::get;

PiperOrigin-RevId: 383688097

Suppress a clang-tidy warning in the MATCHER(name, description) macro.

PiperOrigin-RevId: 383587271

Add `Conditional` wrapper to gtest

This follows an initial proposal for an 'EqIff` matcher. `Conditional` was considered more precise as an EqIff() matcher may suffer from `Iff` not being universally understood.

PiperOrigin-RevId: 383407665

Introduce GTEST_FLAG_GET and GTEST_FLAG_SET macros.

PiperOrigin-RevId: 382808313

gtest: Add a flag to only set up/tear down test environments once when repeating

Currently when running a test multiple times using `--gtest_repeat` the global
test environment(s) are set up and torn down for each iteration of the test.
When checking for flakes in tests that have expensive dependencies that are set
up in the test environment (subprocesses, external dependencies, etc) this can
become expensive.

To support finding flakes in tests that fit into this category, where the setup
phase is expensive but each test case is fast, allow callers to specify via
`--gtest_recreate_environments_when_repeating=false` that the test environments
should only be set up once, for the first iteration, and only torn down once, on
the last iteration. This makes running a test with `--gtest_repeat=1000` a much
faster and more pleasant experience.

PiperOrigin-RevId: 382748942

According to the 2nd point on [1], -lregex is required on QNX.

[1] https://www.qnx.com/developers/docs/7.1/#com.qnx.doc.ide.userguide/topic/writing_test_programs.html

The documentation is clear that the FOO we'll be guarding always matches
the spelling of the DONT macro.  A single guard macro should not toggle
more than one implementation macro.

This fixes a regression in 7413280c.

Relatedly, improve the documentation of the DONT macros to bring the
list of valid FOO values up to date.

Implement 'Contains(e).Times(n)' matcher modifier which allows to test for arbitrary occurrences including absence with Times(0).

PiperOrigin-RevId: 382210276

PiperOrigin-RevId: 382189077

PiperOrigin-RevId: 382188112

Make multiple attempts to verify GetThreadCount()

Testing GetThreadCount() is inheritently noisy, as other threads can be started
or destroyed between two calls to GetThreadCount(). This is especially true
under certain analyzer configurations, such as TSAN.

PiperOrigin-RevId: 381951799

Deleting deprecated file.

PiperOrigin-RevId: 381938709

On QNX, pthread is part of libc [1]. There's no separate pthread library
to link.

[1] https://www.qnx.com/developers/docs/7.1/index.html#com.qnx.doc.neutrino.lib_ref/topic/p/pthread_create.html

EXPECT_DEATH() and ASSERT_DEATH() have a switch case where every
possible case is covered. This makes the default case unnecessary
and triggers -Wcovered-switch-default.
Due to these being macros, the lines are expanded in user code and
are thus subject to warnings of the target codebase.

Fixes #3456

PiperOrigin-RevId: 380705469

Remove -Werror from the CMake compiler flags

We should not force warnings as errors on users.
Sometimes compilers introduce new warnings which
will break builds.

Instead, we manually turn this flag on in our continuous integration
scripts so we can catch these errors, but not force them on our users.

Fixes #3447

PiperOrigin-RevId: 380241852

PiperOrigin-RevId: 379625931