| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <limits> |
| |
| #include "base/util/type_safety/id_type.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| |
| namespace util { |
| |
| namespace { |
| |
| class Foo; |
| using FooId = IdType<Foo, int, 0>; |
| |
| } // namespace |
| |
| TEST(IdType, DefaultValueIsInvalid) { |
| FooId foo_id; |
| EXPECT_TRUE(foo_id.is_null()); |
| } |
| |
| TEST(IdType, NormalValueIsValid) { |
| FooId foo_id = FooId::FromUnsafeValue(123); |
| EXPECT_FALSE(foo_id.is_null()); |
| } |
| |
| class IdTypeSpecificValueTest : public ::testing::TestWithParam<int> { |
| protected: |
| FooId test_id() { return FooId::FromUnsafeValue(GetParam()); } |
| |
| FooId other_id() { |
| if (GetParam() != std::numeric_limits<int>::max()) |
| return FooId::FromUnsafeValue(GetParam() + 1); |
| else |
| return FooId::FromUnsafeValue(std::numeric_limits<int>::min()); |
| } |
| }; |
| |
| TEST_P(IdTypeSpecificValueTest, UnsafeValueRoundtrips) { |
| int original_value = GetParam(); |
| FooId id = FooId::FromUnsafeValue(original_value); |
| int final_value = id.GetUnsafeValue(); |
| EXPECT_EQ(original_value, final_value); |
| } |
| |
| INSTANTIATE_TEST_SUITE_P(, |
| IdTypeSpecificValueTest, |
| ::testing::Values(std::numeric_limits<int>::min(), |
| -1, |
| 0, |
| 1, |
| 123, |
| std::numeric_limits<int>::max())); |
| |
| } // namespace util |