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130 lines
2.9 KiB
130 lines
2.9 KiB
/*
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* Copyright (C) 2015 The Android Open Source Project
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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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* http://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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*/
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#include "util/Maybe.h"
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#include <string>
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#include "test/Test.h"
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namespace aapt {
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struct Fake {
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Fake() {
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data = new int;
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*data = 1;
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std::cerr << "Construct Fake{0x" << (void*)this << "} with data=0x"
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<< (void*)data << std::endl;
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}
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Fake(const Fake& rhs) {
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data = nullptr;
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if (rhs.data) {
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data = new int;
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*data = *rhs.data;
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}
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std::cerr << "CopyConstruct Fake{0x" << (void*)this << "} from Fake{0x"
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<< (const void*)&rhs << "}" << std::endl;
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}
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Fake(Fake&& rhs) {
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data = rhs.data;
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rhs.data = nullptr;
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std::cerr << "MoveConstruct Fake{0x" << (void*)this << "} from Fake{0x"
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<< (const void*)&rhs << "}" << std::endl;
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}
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Fake& operator=(const Fake& rhs) {
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delete data;
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data = nullptr;
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if (rhs.data) {
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data = new int;
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*data = *rhs.data;
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}
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std::cerr << "CopyAssign Fake{0x" << (void*)this << "} from Fake{0x"
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<< (const void*)&rhs << "}" << std::endl;
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return *this;
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}
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Fake& operator=(Fake&& rhs) {
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delete data;
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data = rhs.data;
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rhs.data = nullptr;
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std::cerr << "MoveAssign Fake{0x" << (void*)this << "} from Fake{0x"
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<< (const void*)&rhs << "}" << std::endl;
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return *this;
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}
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~Fake() {
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std::cerr << "Destruct Fake{0x" << (void*)this << "} with data=0x"
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<< (void*)data << std::endl;
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delete data;
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}
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int* data;
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};
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TEST(MaybeTest, MakeNothing) {
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Maybe<int> val = make_nothing<int>();
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EXPECT_FALSE(val);
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Maybe<std::string> val2 = make_nothing<std::string>();
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EXPECT_FALSE(val2);
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val2 = make_nothing<std::string>();
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EXPECT_FALSE(val2);
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}
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TEST(MaybeTest, MakeSomething) {
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Maybe<int> val = make_value(23);
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ASSERT_TRUE(val);
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EXPECT_EQ(23, val.value());
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Maybe<std::string> val2 = make_value(std::string("hey"));
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ASSERT_TRUE(val2);
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EXPECT_EQ(std::string("hey"), val2.value());
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}
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TEST(MaybeTest, Lifecycle) {
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Maybe<Fake> val = make_nothing<Fake>();
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Maybe<Fake> val2 = make_value(Fake());
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}
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TEST(MaybeTest, MoveAssign) {
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Maybe<Fake> val;
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{
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Maybe<Fake> val2 = Fake();
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val = std::move(val2);
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}
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}
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TEST(MaybeTest, Equality) {
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Maybe<int> a = 1;
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Maybe<int> b = 1;
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Maybe<int> c;
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Maybe<int> emptyA, emptyB;
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EXPECT_EQ(a, b);
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EXPECT_EQ(b, a);
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EXPECT_NE(a, c);
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EXPECT_EQ(emptyA, emptyB);
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}
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} // namespace aapt
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