mirror of
https://github.com/eclipse-openvehicle-api/openvehicle-api.git
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86 lines
2.2 KiB
C++
86 lines
2.2 KiB
C++
/********************************************************************************
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* Copyright (c) 2025-2026 ZF Friedrichshafen AG
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*
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* This program and the accompanying materials are made available under the
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* terms of the Apache License Version 2.0 which is available at
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* https://www.apache.org/licenses/LICENSE-2.0
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Contributors:
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* Erik Verhoeven - initial API and implementation
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********************************************************************************/
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#include <fstream>
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#include <gtest/gtest.h>
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#include "../../../global/process_watchdog.h"
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#include "../../../global/unique_id.h"
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#if defined(_WIN32) && defined(_UNICODE)
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extern "C" int wmain(int argc, wchar_t* argv[])
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#else
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extern "C" int main(int argc, char* argv[])
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#endif
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{
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CProcessWatchdog watchdog;
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testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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TEST(UniqueID, TestSmallID)
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{
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CUniqueID<int, 4> generator;
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// Max 15 ids possible
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std::set<int> setUsed;
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int iNumber;
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for (size_t n = 0; n < 15; n++)
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{
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iNumber = generator.Generate();
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EXPECT_NE(iNumber, 0);
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EXPECT_EQ(setUsed.find(iNumber), setUsed.end());
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setUsed.insert(iNumber);
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}
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// One more ID should fail
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iNumber = generator.Generate();
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EXPECT_EQ(iNumber, 0);
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}
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TEST(UniqueID, TestSmallID2)
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{
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CUniqueID<uint8_t> generator;
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// Max 255 ids possible
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std::set<uint32_t> setUsed;
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uint32_t uiNumber = 0;
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for (size_t n = 0; n < 255; n++)
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{
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uiNumber = generator.Generate();
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EXPECT_NE(uiNumber, 0u);
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EXPECT_EQ(setUsed.find(uiNumber), setUsed.end());
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setUsed.insert(uiNumber);
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}
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// One more ID should fail
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uiNumber = generator.Generate();
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EXPECT_EQ(uiNumber, 0u);
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}
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TEST(UniqueID, TestLargeID)
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{
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CUniqueID<uint64_t> generator;
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// Run at the most 20000 times and check whether the number occurs multiple times
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std::set<uint64_t> setUsed;
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uint64_t uiNumber;
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for (size_t n = 0; n < 20000; n++)
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{
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uiNumber = generator.Generate();
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EXPECT_NE(uiNumber, 0u);
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EXPECT_EQ(setUsed.find(uiNumber), setUsed.end());
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setUsed.insert(uiNumber);
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}
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}
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