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// 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
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