1
    2
    3
    4
    5
    6
    7
    8
    9
   10
   11
   12
   13
   14
   15
   16
   17
   18
   19
   20
   21
   22
   23
   24
   25
   26
   27
   28
   29
   30
   31
   32
   33
   34
   35
   36
   37
   38
   39
   40
   41
   42
   43
   44
   45
   46
   47
   48
   49
   50
   51
   52
   53
   54
   55
   56
   57
   58
   59
   60
   61
   62
   63
   64
   65
   66
   67
   68
   69
   70
   71
   72
   73
   74
   75
   76
   77
   78
   79
   80
   81
   82


base / component_export_unittest.cc [blame]

// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "base/component_export.h"
#include "testing/gtest/include/gtest/gtest.h"

namespace base {
namespace {

using ComponentExportTest = testing::Test;

#define IS_TEST_COMPONENT_A_IMPL 1
#define IS_TEST_COMPONENT_B_IMPL
#define IS_TEST_COMPONENT_C_IMPL 0
#define IS_TEST_COMPONENT_D_IMPL 2
#define IS_TEST_COMPONENT_E_IMPL xyz

TEST(ComponentExportTest, ImportExport) {
  // Defined as 1. Treat as export.
  EXPECT_EQ(1, INSIDE_COMPONENT_IMPL(TEST_COMPONENT_A));

  // Defined, but empty. Treat as import.
  EXPECT_EQ(0, INSIDE_COMPONENT_IMPL(TEST_COMPONENT_B));

  // Defined, but 0. Treat as import.
  EXPECT_EQ(0, INSIDE_COMPONENT_IMPL(TEST_COMPONENT_C));

  // Defined, but some other arbitrary thing that isn't 1. Treat as import.
  EXPECT_EQ(0, INSIDE_COMPONENT_IMPL(TEST_COMPONENT_D));
  EXPECT_EQ(0, INSIDE_COMPONENT_IMPL(TEST_COMPONENT_E));

  // Undefined. Treat as import.
  EXPECT_EQ(0, INSIDE_COMPONENT_IMPL(TEST_COMPONENT_F));

  // And just for good measure, ensure that the macros evaluate properly in the
  // context of preprocessor #if blocks.
#if INSIDE_COMPONENT_IMPL(TEST_COMPONENT_A)
  EXPECT_TRUE(true);
#else
  EXPECT_TRUE(false);
#endif

#if !INSIDE_COMPONENT_IMPL(TEST_COMPONENT_B)
  EXPECT_TRUE(true);
#else
  EXPECT_TRUE(false);
#endif

#if !INSIDE_COMPONENT_IMPL(TEST_COMPONENT_C)
  EXPECT_TRUE(true);
#else
  EXPECT_TRUE(false);
#endif

#if !INSIDE_COMPONENT_IMPL(TEST_COMPONENT_D)
  EXPECT_TRUE(true);
#else
  EXPECT_TRUE(false);
#endif

#if !INSIDE_COMPONENT_IMPL(TEST_COMPONENT_E)
  EXPECT_TRUE(true);
#else
  EXPECT_TRUE(false);
#endif

#if !INSIDE_COMPONENT_IMPL(TEST_COMPONENT_F)
  EXPECT_TRUE(true);
#else
  EXPECT_TRUE(false);
#endif
}

#undef IS_TEST_COMPONENT_A_IMPL
#undef IS_TEST_COMPONENT_B_IMPL
#undef IS_TEST_COMPONENT_C_IMPL
#undef IS_TEST_COMPONENT_D_IMPL
#undef IS_TEST_COMPONENT_E_IMPL

}  // namespace
}  // namespace base