1 // Copyright 2022 The Chromium Authors
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
5 #include "base/check_is_test.h"
7 #include "base/check.h"
8 #include "base/logging.h"
11 bool g_this_is_a_test = false;
14 namespace base::internal {
15 void check_is_test_impl() {
16 CHECK(g_this_is_a_test);
18 } // namespace base::internal
20 namespace base::test {
21 // base/test/allow_check_is_test_for_testing.h declares
22 // `AllowCheckIsTestForTesting`, but is only allowed to be included in test
23 // code. We therefore have to also mark the symbol as exported here.
24 BASE_EXPORT void AllowCheckIsTestForTesting() {
25 // This CHECK ensures that `AllowCheckIsTestForTesting` is called
26 // just once. Since it is called in `base::TestSuite`, this should effectivly
27 // prevent calls to `AllowCheckIsTestForTesting` in production code
28 // (assuming that code has unit test coverage).
30 // This is just in case someone ignores the fact that this function in the
31 // `base::test` namespace and ends on "ForTesting".
32 CHECK(!g_this_is_a_test)
33 << "AllowCheckIsTestForTesting must not be called more than once";
35 g_this_is_a_test = true;
38 } // namespace base::test