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