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/*
* Copyright 2020 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "rtc_base/bounded_inline_vector.h"
#include <memory>
#include <string>
#include <type_traits>
#include <utility>
#include "test/gtest.h"
namespace webrtc {
namespace {
using SmallTrivial = BoundedInlineVector<int, 2>;
using LargeTrivial = BoundedInlineVector<int, 200>;
using NonTrivial = BoundedInlineVector<std::string, 2>;
static_assert(std::is_trivially_copyable<SmallTrivial>::value, "");
static_assert(!std::is_trivially_copyable<LargeTrivial>::value, "");
static_assert(std::is_trivially_destructible<LargeTrivial>::value, "");
static_assert(!std::is_trivially_copyable<NonTrivial>::value, "");
static_assert(!std::is_trivially_destructible<NonTrivial>::value, "");
template <typename T>
class BoundedInlineVectorTestAllTypes : public ::testing::Test {};
using AllTypes =
::testing::Types<int, // Scalar type.
std::pair<int, float>, // Trivial nonprimitive type.
std::unique_ptr<int>, // Move-only type.
std::string>; // Nontrivial copyable type.
TYPED_TEST_SUITE(BoundedInlineVectorTestAllTypes, AllTypes);
template <typename T>
class BoundedInlineVectorTestCopyableTypes : public ::testing::Test {};
using CopyableTypes = ::testing::Types<int, std::pair<int, float>, std::string>;
TYPED_TEST_SUITE(BoundedInlineVectorTestCopyableTypes, CopyableTypes);
TYPED_TEST(BoundedInlineVectorTestAllTypes, ConstructEmpty) {
BoundedInlineVector<TypeParam, 3> x;
EXPECT_EQ(x.size(), 0);
EXPECT_EQ(x.begin(), x.end());
static_assert(x.capacity() == 3, "");
}
TYPED_TEST(BoundedInlineVectorTestAllTypes, ConstructNonempty) {
BoundedInlineVector<TypeParam, 3> x = {TypeParam(), TypeParam()};
EXPECT_EQ(x.size(), 2);
static_assert(x.capacity() == 3, "");
}
TYPED_TEST(BoundedInlineVectorTestCopyableTypes, CopyConstruct) {
BoundedInlineVector<TypeParam, 3> x = {TypeParam(), TypeParam()};
BoundedInlineVector<TypeParam, 2> y = x;
EXPECT_EQ(y.size(), 2);
static_assert(x.capacity() == 3, "");
static_assert(y.capacity() == 2, "");
}
TYPED_TEST(BoundedInlineVectorTestCopyableTypes, CopyAssign) {
BoundedInlineVector<TypeParam, 3> x = {TypeParam(), TypeParam()};
BoundedInlineVector<TypeParam, 2> y;
EXPECT_EQ(y.size(), 0);
y = x;
EXPECT_EQ(y.size(), 2);
}
TYPED_TEST(BoundedInlineVectorTestAllTypes, MoveConstruct) {
BoundedInlineVector<TypeParam, 3> x = {TypeParam(), TypeParam()};
BoundedInlineVector<TypeParam, 2> y = std::move(x);
EXPECT_EQ(y.size(), 2);
static_assert(x.capacity() == 3, "");
static_assert(y.capacity() == 2, "");
}
TYPED_TEST(BoundedInlineVectorTestAllTypes, MoveAssign) {
BoundedInlineVector<TypeParam, 3> x = {TypeParam(), TypeParam()};
BoundedInlineVector<TypeParam, 2> y;
EXPECT_EQ(y.size(), 0);
y = std::move(x);
EXPECT_EQ(y.size(), 2);
}
TEST(BoundedInlineVectorTestOneType, Iteration) {
BoundedInlineVector<std::string, 4> sv{"one", "two", "three", "four"};
std::string cat;
for (const auto& s : sv) {
cat += s;
}
EXPECT_EQ(cat, "onetwothreefour");
}
TEST(BoundedInlineVectorTestOneType, Indexing) {
BoundedInlineVector<double, 1> x = {3.14};
EXPECT_EQ(x[0], 3.14);
}
template <typename T, int capacity, typename... Ts>
BoundedInlineVector<T, capacity> Returns(Ts... values) {
return {std::forward<Ts>(values)...};
}
TYPED_TEST(BoundedInlineVectorTestAllTypes, Return) {
EXPECT_EQ((Returns<TypeParam, 3>().size()), 0);
EXPECT_EQ((Returns<TypeParam, 3>(TypeParam(), TypeParam()).size()), 2);
}
TYPED_TEST(BoundedInlineVectorTestAllTypes, Resize) {
BoundedInlineVector<TypeParam, 17> x;
EXPECT_EQ(x.size(), 0);
x.resize(17);
EXPECT_EQ(x.size(), 17);
// Test one arbitrary element, mostly to give MSan a chance to scream. But if
// the type has a trivial default constructor we can't, because the element
// won't be initialized.
if (!std::is_trivially_default_constructible<TypeParam>::value) {
EXPECT_EQ(x[4], TypeParam());
}
x.resize(2);
EXPECT_EQ(x.size(), 2);
}
} // namespace
} // namespace webrtc
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