8906d05e9c
This will be used by base::Promise<>. Bug: 906125 Change-Id: I4e2dbb44947c336d8fffa8f571b4d2a96aaa25b6 Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1496858 Commit-Queue: Alex Clarke <alexclarke@chromium.org> Reviewed-by: Gabriel Charette <gab@chromium.org> Cr-Commit-Position: refs/heads/master@{#640323}
77 lines
2.7 KiB
C++
77 lines
2.7 KiB
C++
// Copyright 2019 The Chromium Authors. All rights reserved.
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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 "base/parameter_pack.h"
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#include "testing/gtest/include/gtest/gtest.h"
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namespace base {
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TEST(ParameterPack, AnyOf) {
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static_assert(any_of({true, true, true}), "");
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static_assert(any_of({false, false, true, false}), "");
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static_assert(!any_of({false}), "");
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static_assert(!any_of({false, false, false}), "");
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}
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TEST(ParameterPack, AllOf) {
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static_assert(all_of({true, true, true}), "");
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static_assert(!all_of({true, true, true, false}), "");
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static_assert(!all_of({false}), "");
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static_assert(!all_of({false, false}), "");
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}
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TEST(ParameterPack, Count) {
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static_assert(count({1, 2, 2, 2, 2, 2, 3}, 2) == 5u, "");
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}
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TEST(ParameterPack, HasType) {
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static_assert(ParameterPack<int, float, bool>::HasType<int>(), "");
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static_assert(ParameterPack<int, float, bool>::HasType<bool>(), "");
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static_assert(ParameterPack<int, float, bool>::HasType<bool>(), "");
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static_assert(!ParameterPack<int, float, bool>::HasType<void*>(), "");
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}
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TEST(ParameterPack, OnlyHasType) {
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static_assert(ParameterPack<int, int>::OnlyHasType<int>(), "");
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static_assert(ParameterPack<int, int, int, int>::OnlyHasType<int>(), "");
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static_assert(!ParameterPack<int, bool>::OnlyHasType<int>(), "");
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static_assert(!ParameterPack<int, int, bool, int>::OnlyHasType<int>(), "");
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static_assert(!ParameterPack<int, int, int>::OnlyHasType<bool>(), "");
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}
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TEST(ParameterPack, IsUniqueInPack) {
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static_assert(ParameterPack<int, float, bool>::IsUniqueInPack<int>(), "");
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static_assert(!ParameterPack<int, int, bool>::IsUniqueInPack<int>(), "");
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}
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TEST(ParameterPack, IndexInPack) {
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static_assert(ParameterPack<int, float, bool>::IndexInPack<int>() == 0u, "");
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static_assert(ParameterPack<int, float, bool>::IndexInPack<float>() == 1u,
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"");
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static_assert(ParameterPack<int, float, bool>::IndexInPack<bool>() == 2u, "");
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static_assert(
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ParameterPack<int, float, bool>::IndexInPack<void*>() == pack_npos, "");
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}
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TEST(ParameterPack, NthType) {
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static_assert(
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std::is_same<int, ParameterPack<int, float, bool>::NthType<0>>::value,
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"");
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static_assert(
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std::is_same<float, ParameterPack<int, float, bool>::NthType<1>>::value,
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"");
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static_assert(
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std::is_same<bool, ParameterPack<int, float, bool>::NthType<2>>::value,
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"");
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}
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TEST(ParameterPack, IsAllSameType) {
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static_assert(ParameterPack<int>::IsAllSameType(), "");
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static_assert(ParameterPack<int, int, int>::IsAllSameType(), "");
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static_assert(!ParameterPack<int, int, int, int, bool>::IsAllSameType(), "");
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}
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} // namespace base
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