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//===- unittests/Basic/Defer.cpp ------------------------------------------===//
//
// This source file is part of the Swift.org open source project
//
// Copyright (c) 2019 Apple Inc. and the Swift project authors
// Licensed under Apache License v2.0 with Runtime Library Exception
//
// See http://swift.org/LICENSE.txt for license information
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
//
//===----------------------------------------------------------------------===//
#include "llbuild/Basic/Defer.h"
#include "gtest/gtest.h"
using namespace llbuild;
using namespace llbuild::basic;
namespace {
TEST(DeferTest, basic) {
int defer_count = 0;
// Test basic macro use
{
llbuild_defer { defer_count++; };
EXPECT_EQ(0, defer_count);
}
EXPECT_EQ(1, defer_count);
// Test multiple defers
defer_count = 0;
{
llbuild_defer { defer_count += 1; };
EXPECT_EQ(0, defer_count);
llbuild_defer { defer_count += 2; };
EXPECT_EQ(0, defer_count);
}
EXPECT_EQ(3, defer_count);
// Test/show direct use of RAII builder
defer_count = 0;
{
auto deferred = makeScopeDefer([&](){ defer_count += 1; });
EXPECT_EQ(0, defer_count);
}
EXPECT_EQ(1, defer_count);
// Test/show direct use of ScopeDefer template
defer_count = 0;
{
auto deferred = ScopeDefer<std::function<void()>>([&](){ defer_count += 1; });
EXPECT_EQ(0, defer_count);
}
EXPECT_EQ(1, defer_count);
}
}
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