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// Copyright 2021 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,
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "src/tint/utils/containers/map.h"
#include <unordered_map>
#include "gtest/gtest.h"
namespace tint {
namespace {
TEST(Lookup, Test) {
std::unordered_map<int, int> map;
map.emplace(10, 1);
EXPECT_EQ(Lookup(map, 10, 0), 1); // exists, with if_missing
EXPECT_EQ(Lookup(map, 10), 1); // exists, without if_missing
EXPECT_EQ(Lookup(map, 20, 50), 50); // missing, with if_missing
EXPECT_EQ(Lookup(map, 20), 0); // missing, without if_missing
}
TEST(GetOrCreateTest, NewKey) {
std::unordered_map<int, int> map;
EXPECT_EQ(GetOrCreate(map, 1, [&] { return 2; }), 2);
EXPECT_EQ(map.size(), 1u);
EXPECT_EQ(map[1], 2);
}
TEST(GetOrCreateTest, ExistingKey) {
std::unordered_map<int, int> map;
map[1] = 2;
bool called = false;
EXPECT_EQ(GetOrCreate(map, 1,
[&] {
called = true;
return -2;
}),
2);
EXPECT_EQ(called, false);
EXPECT_EQ(map.size(), 1u);
EXPECT_EQ(map[1], 2);
}
} // namespace
} // namespace tint