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50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
/*
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* Copyright (C) 2014 Pavel Kirienko <pavel.kirienko@gmail.com>
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*/
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#include <string>
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#include <gtest/gtest.h>
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#include <uavcan/internal/transport/transfer.hpp>
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TEST(Transfer, TransferID)
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{
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using uavcan::TransferID;
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// Tests below are based on this assumption
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ASSERT_EQ(8, 1 << TransferID::BitLen);
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/*
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* forwardDistance()
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*/
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EXPECT_EQ(0, TransferID(0).forwardDistance(0));
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EXPECT_EQ(1, TransferID(0).forwardDistance(1));
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EXPECT_EQ(7, TransferID(0).forwardDistance(7));
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EXPECT_EQ(0, TransferID(7).forwardDistance(7));
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EXPECT_EQ(7, TransferID(7).forwardDistance(6));
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EXPECT_EQ(1, TransferID(7).forwardDistance(0));
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EXPECT_EQ(7, TransferID(7).forwardDistance(6));
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EXPECT_EQ(5, TransferID(0).forwardDistance(5));
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/*
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* Misc
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*/
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EXPECT_TRUE(TransferID(2) == TransferID(2));
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EXPECT_FALSE(TransferID(2) != TransferID(2));
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EXPECT_FALSE(TransferID(2) == TransferID(0));
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EXPECT_TRUE(TransferID(2) != TransferID(0));
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TransferID tid;
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for (int i = 0; i < 999; i++)
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{
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ASSERT_EQ(i & ((1 << TransferID::BitLen) - 1), tid.get());
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const TransferID copy = tid;
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tid.increment();
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ASSERT_EQ(1, copy.forwardDistance(tid));
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ASSERT_EQ(7, tid.forwardDistance(copy));
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ASSERT_EQ(0, tid.forwardDistance(tid));
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}
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}
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