142 lines
4.1 KiB
C++
142 lines
4.1 KiB
C++
// Copyright 2018 The Abseil Authors.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "absl/container/internal/hash_policy_traits.h"
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#include <functional>
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#include <memory>
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#include <new>
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#include "gmock/gmock.h"
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#include "gtest/gtest.h"
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namespace absl {
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namespace container_internal {
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namespace {
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using ::testing::MockFunction;
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using ::testing::Return;
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using ::testing::ReturnRef;
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using Alloc = std::allocator<int>;
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using Slot = int;
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struct PolicyWithoutOptionalOps {
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using slot_type = Slot;
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using key_type = Slot;
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using init_type = Slot;
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static std::function<void(void*, Slot*, Slot)> construct;
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static std::function<void(void*, Slot*)> destroy;
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static std::function<Slot&(Slot*)> element;
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static int apply(int v) { return apply_impl(v); }
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static std::function<int(int)> apply_impl;
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static std::function<Slot&(Slot*)> value;
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};
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std::function<void(void*, Slot*, Slot)> PolicyWithoutOptionalOps::construct;
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std::function<void(void*, Slot*)> PolicyWithoutOptionalOps::destroy;
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std::function<Slot&(Slot*)> PolicyWithoutOptionalOps::element;
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std::function<int(int)> PolicyWithoutOptionalOps::apply_impl;
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std::function<Slot&(Slot*)> PolicyWithoutOptionalOps::value;
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struct PolicyWithOptionalOps : PolicyWithoutOptionalOps {
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static std::function<void(void*, Slot*, Slot*)> transfer;
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};
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std::function<void(void*, Slot*, Slot*)> PolicyWithOptionalOps::transfer;
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struct Test : ::testing::Test {
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Test() {
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PolicyWithoutOptionalOps::construct = [&](void* a1, Slot* a2, Slot a3) {
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construct.Call(a1, a2, std::move(a3));
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};
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PolicyWithoutOptionalOps::destroy = [&](void* a1, Slot* a2) {
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destroy.Call(a1, a2);
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};
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PolicyWithoutOptionalOps::element = [&](Slot* a1) -> Slot& {
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return element.Call(a1);
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};
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PolicyWithoutOptionalOps::apply_impl = [&](int a1) -> int {
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return apply.Call(a1);
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};
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PolicyWithoutOptionalOps::value = [&](Slot* a1) -> Slot& {
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return value.Call(a1);
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};
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PolicyWithOptionalOps::transfer = [&](void* a1, Slot* a2, Slot* a3) {
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return transfer.Call(a1, a2, a3);
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};
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}
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std::allocator<int> alloc;
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int a = 53;
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MockFunction<void(void*, Slot*, Slot)> construct;
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MockFunction<void(void*, Slot*)> destroy;
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MockFunction<Slot&(Slot*)> element;
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MockFunction<int(int)> apply;
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MockFunction<Slot&(Slot*)> value;
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MockFunction<void(void*, Slot*, Slot*)> transfer;
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};
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TEST_F(Test, construct) {
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EXPECT_CALL(construct, Call(&alloc, &a, 53));
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hash_policy_traits<PolicyWithoutOptionalOps>::construct(&alloc, &a, 53);
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}
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TEST_F(Test, destroy) {
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EXPECT_CALL(destroy, Call(&alloc, &a));
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hash_policy_traits<PolicyWithoutOptionalOps>::destroy(&alloc, &a);
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}
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TEST_F(Test, element) {
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int b = 0;
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EXPECT_CALL(element, Call(&a)).WillOnce(ReturnRef(b));
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EXPECT_EQ(&b, &hash_policy_traits<PolicyWithoutOptionalOps>::element(&a));
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}
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TEST_F(Test, apply) {
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EXPECT_CALL(apply, Call(42)).WillOnce(Return(1337));
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EXPECT_EQ(1337, (hash_policy_traits<PolicyWithoutOptionalOps>::apply(42)));
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}
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TEST_F(Test, value) {
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int b = 0;
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EXPECT_CALL(value, Call(&a)).WillOnce(ReturnRef(b));
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EXPECT_EQ(&b, &hash_policy_traits<PolicyWithoutOptionalOps>::value(&a));
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}
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TEST_F(Test, without_transfer) {
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int b = 42;
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EXPECT_CALL(element, Call(&b)).WillOnce(::testing::ReturnRef(b));
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EXPECT_CALL(construct, Call(&alloc, &a, b));
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EXPECT_CALL(destroy, Call(&alloc, &b));
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hash_policy_traits<PolicyWithoutOptionalOps>::transfer(&alloc, &a, &b);
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}
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TEST_F(Test, with_transfer) {
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int b = 42;
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EXPECT_CALL(transfer, Call(&alloc, &a, &b));
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hash_policy_traits<PolicyWithOptionalOps>::transfer(&alloc, &a, &b);
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}
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} // namespace
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} // namespace container_internal
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} // namespace absl
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