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