public void TestGcdTickSize()
{
PbTickCodec codec = new PbTickCodec();
Assert.AreEqual(0.00001, codec.gcd());
Assert.AreEqual(0.3, codec.gcd(100.3f - 100.0f));
Assert.AreEqual(0.2, codec.gcd(100.3f - 100.1f));
Assert.AreEqual(0.1, codec.gcd(100.3f - 100.0f, 100.2f - 100.0f));
Assert.AreEqual(0.1, codec.gcd(100.3f - 100.0f, 100.2f - 100.0f, 100.1f - 100.0f));
Assert.AreEqual(0.05, codec.gcd(100.3f - 100.0f, 100.2f - 100.0f, 100.1f - 100.0f, 100.1f - 100.05f));
Assert.AreEqual(0.1, codec.gcd(100.0f - 100.3f, 100.0f - 100.2f));
Assert.AreEqual(0.05, codec.gcd(100.0f - 100.3f, 100.0f - 100.2f, 100.0f - 100.1f, 100.05f - 100.1f));
Assert.AreEqual(10, codec.gcd(1000, 41430));
}