78 lines
2.8 KiB
C++
78 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include <cppunit/extensions/HelperMacros.h>
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#include <cppunit/plugin/TestPlugIn.h>
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#include <systools/win32/retry_if_failed.hxx>
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namespace test_systools
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{
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constexpr int ClockRes = 15; // default interval between system clock ticks is ~15 ms on x86
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class test_retry_if_failed : public CppUnit::TestFixture
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{
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public:
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void test_success()
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{
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unsigned counter = 0;
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const DWORD nTicksBefore = GetTickCount();
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HRESULT hr = sal::systools::RetryIfFailed(10, 200, Tester(5, counter));
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const DWORD nTicksAfter = GetTickCount();
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const DWORD nTicksElapsed = nTicksAfter > nTicksBefore ? nTicksAfter - nTicksBefore
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: std::numeric_limits<DWORD>::max()
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- nTicksBefore + nTicksAfter;
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CPPUNIT_ASSERT(SUCCEEDED(hr));
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// 5 attempts, 4 sleeps by ~200 ms
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CPPUNIT_ASSERT_EQUAL(5U, counter);
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CPPUNIT_ASSERT_GREATER(DWORD(800 - ClockRes), nTicksElapsed);
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}
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void test_failure()
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{
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unsigned counter = 0;
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const DWORD nTicksBefore = GetTickCount();
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HRESULT hr = sal::systools::RetryIfFailed(10, 100, Tester(15, counter));
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const DWORD nTicksAfter = GetTickCount();
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const DWORD nTicksElapsed = nTicksAfter > nTicksBefore ? nTicksAfter - nTicksBefore
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: std::numeric_limits<DWORD>::max()
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- nTicksBefore + nTicksAfter;
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CPPUNIT_ASSERT(FAILED(hr));
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// 1 + 10 attempts, 10 sleeps by ~100 ms
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CPPUNIT_ASSERT_EQUAL(11U, counter);
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CPPUNIT_ASSERT_GREATER(DWORD(1000 - ClockRes), nTicksElapsed);
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}
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CPPUNIT_TEST_SUITE(test_retry_if_failed);
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CPPUNIT_TEST(test_success);
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CPPUNIT_TEST(test_failure);
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CPPUNIT_TEST_SUITE_END();
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private:
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struct Tester
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{
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Tester(unsigned triesBeforeSuccess, unsigned& counter)
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: m_nTriesBeforeSuccess(triesBeforeSuccess)
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, m_rCounter(counter)
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{
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}
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HRESULT operator()() { return ++m_rCounter >= m_nTriesBeforeSuccess ? S_OK : E_FAIL; }
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unsigned m_nTriesBeforeSuccess;
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unsigned& m_rCounter;
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};
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};
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CPPUNIT_TEST_SUITE_REGISTRATION(test_systools::test_retry_if_failed);
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} // namespace test_systools
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CPPUNIT_PLUGIN_IMPLEMENT();
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/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */
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