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/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "util/Maybe.h"
#include <string>
#include "test/Test.h"
namespace aapt {
struct Dummy {
Dummy() {
data = new int;
*data = 1;
std::cerr << "Construct Dummy{0x" << (void*)this << "} with data=0x"
<< (void*)data << std::endl;
}
Dummy(const Dummy& rhs) {
data = nullptr;
if (rhs.data) {
data = new int;
*data = *rhs.data;
}
std::cerr << "CopyConstruct Dummy{0x" << (void*)this << "} from Dummy{0x"
<< (const void*)&rhs << "}" << std::endl;
}
Dummy(Dummy&& rhs) {
data = rhs.data;
rhs.data = nullptr;
std::cerr << "MoveConstruct Dummy{0x" << (void*)this << "} from Dummy{0x"
<< (const void*)&rhs << "}" << std::endl;
}
Dummy& operator=(const Dummy& rhs) {
delete data;
data = nullptr;
if (rhs.data) {
data = new int;
*data = *rhs.data;
}
std::cerr << "CopyAssign Dummy{0x" << (void*)this << "} from Dummy{0x"
<< (const void*)&rhs << "}" << std::endl;
return *this;
}
Dummy& operator=(Dummy&& rhs) {
delete data;
data = rhs.data;
rhs.data = nullptr;
std::cerr << "MoveAssign Dummy{0x" << (void*)this << "} from Dummy{0x"
<< (const void*)&rhs << "}" << std::endl;
return *this;
}
~Dummy() {
std::cerr << "Destruct Dummy{0x" << (void*)this << "} with data=0x"
<< (void*)data << std::endl;
delete data;
}
int* data;
};
TEST(MaybeTest, MakeNothing) {
Maybe<int> val = make_nothing<int>();
EXPECT_FALSE(val);
Maybe<std::string> val2 = make_nothing<std::string>();
EXPECT_FALSE(val2);
val2 = make_nothing<std::string>();
EXPECT_FALSE(val2);
}
TEST(MaybeTest, MakeSomething) {
Maybe<int> val = make_value(23);
ASSERT_TRUE(val);
EXPECT_EQ(23, val.value());
Maybe<std::string> val2 = make_value(std::string("hey"));
ASSERT_TRUE(val2);
EXPECT_EQ(std::string("hey"), val2.value());
}
TEST(MaybeTest, Lifecycle) {
Maybe<Dummy> val = make_nothing<Dummy>();
Maybe<Dummy> val2 = make_value(Dummy());
}
TEST(MaybeTest, MoveAssign) {
Maybe<Dummy> val;
{
Maybe<Dummy> val2 = Dummy();
val = std::move(val2);
}
}
TEST(MaybeTest, Equality) {
Maybe<int> a = 1;
Maybe<int> b = 1;
Maybe<int> c;
Maybe<int> emptyA, emptyB;
EXPECT_EQ(a, b);
EXPECT_EQ(b, a);
EXPECT_NE(a, c);
EXPECT_EQ(emptyA, emptyB);
}
} // namespace aapt
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