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//===--- status_test.cpp - Tests for the Status and Expected classes ------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "status.h"
#include "gtest/gtest.h"
#include <memory>
namespace {
struct RefCounter {
static int Count;
RefCounter() { ++Count; }
~RefCounter() { --Count; }
RefCounter(const RefCounter &) = delete;
RefCounter &operator=(const RefCounter &) = delete;
};
int RefCounter::Count;
TEST(Expected, RefCounter) {
RefCounter::Count = 0;
using uptr = std::unique_ptr<RefCounter>;
acxxel::Expected<uptr> E0(uptr(new RefCounter));
EXPECT_FALSE(E0.isError());
EXPECT_EQ(1, RefCounter::Count);
acxxel::Expected<uptr> E1(std::move(E0));
EXPECT_FALSE(E1.isError());
EXPECT_EQ(1, RefCounter::Count);
acxxel::Expected<uptr> E2(acxxel::Status("nothing in here yet"));
EXPECT_TRUE(E2.isError());
EXPECT_EQ(1, RefCounter::Count);
E2 = std::move(E1);
EXPECT_FALSE(E2.isError());
EXPECT_EQ(1, RefCounter::Count);
EXPECT_EQ(1, E2.getValue()->Count);
EXPECT_FALSE(E2.isError());
EXPECT_EQ(1, RefCounter::Count);
EXPECT_EQ(1, E2.takeValue()->Count);
EXPECT_EQ(0, RefCounter::Count);
}
} // namespace
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