base/location_unittest.cc

   1 // Copyright 2019 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/location.h"
   6
   7 #include "base/compiler_specific.h"
   8 #include "base/debug/debugging_buildflags.h"
   9 #include "testing/gmock/include/gmock/gmock.h"
  10 #include "testing/gtest/include/gtest/gtest.h"
  11
  12 namespace base {
  13
  14 namespace {
  15
  16 // This is a typical use: taking Location::Current as a default parameter.
  17 // So even though this looks contrived, it confirms that such usage works as
  18 // expected.
  19 Location WhereAmI(const Location& location = Location::Current()) {
  20   return location;
  21 }
  22
  23 }  // namespace
  24
  25 TEST(LocationTest, CurrentYieldsCorrectValue) {
  26   int previous_line = __LINE__;
  27   Location here = WhereAmI();
  28   EXPECT_NE(here.program_counter(), WhereAmI().program_counter());
  29 #if SUPPORTS_LOCATION_BUILTINS
  30   EXPECT_THAT(here.file_name(), ::testing::EndsWith("location_unittest.cc"));
  31 #if BUILDFLAG(ENABLE_LOCATION_SOURCE)
  32   EXPECT_EQ(here.line_number(), previous_line + 1);
  33   EXPECT_STREQ("TestBody", here.function_name());
  34 #endif
  35 #elif defined(OFFICIAL_BUILD)
  36 #error Location builtins must be supported in official builds.
  37 #elif BUILDFLAG(FROM_HERE_USES_LOCATION_BUILTINS)
  38 #error FROM_HERE requires location builtins to be supported.
  39 #endif
  40   ALLOW_UNUSED_LOCAL(previous_line);
  41 }
  42
  43 }  // namespace base