countingWheelTest.cpp

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#include <gtest/gtest.h>
#include <utils/countingWheel.h>


TEST(CountingWheel, testInitialization)
{
    Utils::CountingWheel wheel(7);
    wheel.initialize();
    EXPECT_EQ(0u, wheel.getValue());
    EXPECT_EQ(7u, wheel.getBase());
}


TEST(CountingWheel, incrementAndCarryTest)
{
    Utils::CountingWheel wheel(3);
    wheel.initialize();
    bool carry = wheel.increment();
    EXPECT_EQ(1u, wheel.getValue());
    EXPECT_FALSE(carry);

    carry = wheel.increment();
    EXPECT_EQ(2u, wheel.getValue());
    EXPECT_FALSE(carry);

    carry = wheel.increment();
    EXPECT_EQ(0u, wheel.getValue());
    EXPECT_TRUE(carry);
}
TEST(CountingWheel, baseZeroTest)
{
    Utils::CountingWheel wheel0(0);
    bool carry = false;
    wheel0.initialize();
    EXPECT_EQ(0u, wheel0.getValue());
    carry = wheel0.increment();
    EXPECT_EQ(0u, wheel0.getValue());
    EXPECT_TRUE(carry);
}