45 lines
1.4 KiB
C++
45 lines
1.4 KiB
C++
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// Copyright 2019 The Chromium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#include "maybe.h"
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#include <string>
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#include <vector>
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#include "test_platform.h"
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namespace crdtp {
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// =============================================================================
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// detail::PtrMaybe, detail::ValueMaybe, templates for optional
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// pointers / values which are used in ../lib/Forward_h.template.
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// =============================================================================
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TEST(PtrMaybeTest, SmokeTest) {
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detail::PtrMaybe<std::vector<uint32_t>> example;
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EXPECT_FALSE(example.has_value());
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std::unique_ptr<std::vector<uint32_t>> v(new std::vector<uint32_t>);
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v->push_back(42);
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v->push_back(21);
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example = std::move(v);
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EXPECT_TRUE(example.has_value());
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EXPECT_THAT(example.value(), testing::ElementsAre(42, 21));
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std::vector<uint32_t> out = *std::move(example);
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EXPECT_TRUE(example.has_value());
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EXPECT_THAT(*example, testing::IsEmpty());
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EXPECT_THAT(out, testing::ElementsAre(42, 21));
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}
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TEST(ValueMaybeTest, SmokeTest) {
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detail::ValueMaybe<int32_t> example;
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EXPECT_FALSE(example.has_value());
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EXPECT_EQ(-1, example.value_or(-1));
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example = 42;
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EXPECT_TRUE(example.has_value());
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EXPECT_EQ(42, example.value());
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int32_t out = *std::move(example);
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EXPECT_EQ(out, 42);
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}
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} // namespace crdtp
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