llvm-project

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//===-- PredicateTest.cpp -------------------------------------------------===//
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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 "lldb/Utility/Predicate.h"
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#include "gtest/gtest.h"
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#include <thread>
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using namespace lldb_private;
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TEST(Predicate, WaitForValueEqualTo) {
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  Predicate<int> P(0);
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  EXPECT_TRUE(P.WaitForValueEqualTo(0));
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  EXPECT_FALSE(P.WaitForValueEqualTo(1, std::chrono::milliseconds(10)));
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  std::thread Setter([&P] {
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    std::this_thread::sleep_for(std::chrono::milliseconds(100));
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    P.SetValue(1, eBroadcastAlways);
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  });
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  EXPECT_TRUE(P.WaitForValueEqualTo(1));
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  Setter.join();
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}
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TEST(Predicate, WaitForValueNotEqualTo) {
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  Predicate<int> P(0);
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  EXPECT_EQ(0, P.WaitForValueNotEqualTo(1));
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  EXPECT_EQ(std::nullopt,
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            P.WaitForValueNotEqualTo(0, std::chrono::milliseconds(10)));
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}
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