| 1 | //===- unittests/ExponentialBackoffTest.cpp -------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #include "llvm/Support/ExponentialBackoff.h" |
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| 10 | #include "gtest/gtest.h" |
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| 11 | #include <chrono> |
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| 12 | |
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| 13 | using namespace llvm; |
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| 14 | using namespace std::chrono_literals; |
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| 15 | |
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| 16 | namespace { |
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| 17 | |
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| 18 | TEST(ExponentialBackoffTest, Timeout) { |
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| 19 | auto Start = std::chrono::steady_clock::now(); |
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| 20 | // Use short enough times that this test runs quickly. |
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| 21 | ExponentialBackoff Backoff(100ms, 1ms, 10ms); |
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| 22 | do { |
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| 23 | } while (Backoff.waitForNextAttempt()); |
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| 24 | auto Duration = std::chrono::steady_clock::now() - Start; |
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| 25 | EXPECT_GE(Duration, 100ms); |
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| 26 | } |
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| 27 | |
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| 28 | // Testing individual wait duration is omitted as those tests would be |
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| 29 | // non-deterministic. |
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| 30 | |
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| 31 | } // end anonymous namespace |
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| 32 | |
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