blob: 13cc05bb312d05e2b63af9141b026c157fdbfbe9 [file] [log] [blame]
// Copyright 2022 The Dawn & Tint Authors
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// 1. Redistributions of source code must retain the above copyright notice, this
// list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// 3. Neither the name of the copyright holder nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
// DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "src/tint/utils/result/result.h"
#include <string>
#include "gmock/gmock.h"
namespace tint {
namespace {
TEST(ResultTest, SuccessInt) {
auto r = Result<int>(123);
EXPECT_TRUE(r);
EXPECT_FALSE(!r);
EXPECT_EQ(r.Get(), 123);
}
TEST(ResultTest, SuccessStruct) {
struct S {
int value;
};
auto r = Result<S>({123});
EXPECT_TRUE(r);
EXPECT_FALSE(!r);
EXPECT_EQ(r->value, 123);
}
TEST(ResultTest, Failure) {
auto r = Result<int>(Failure{});
EXPECT_FALSE(r);
EXPECT_TRUE(!r);
}
TEST(ResultTest, CustomFailure) {
auto r = Result<int, std::string>("oh noes!");
EXPECT_FALSE(r);
EXPECT_TRUE(!r);
EXPECT_EQ(r.Failure(), "oh noes!");
}
TEST(ResultTest, ValueCast) {
struct X {};
struct Y : X {};
Y* y = nullptr;
auto r_y = Result<Y*>{y};
auto r_x = Result<X*>{r_y};
(void)r_x;
(void)r_y;
}
} // namespace
} // namespace tint