public void DoubleRolloverTest()
{
LookBehindPool <byte> buf = new LookBehindPool <byte>(3);
buf.Write(1);
buf.Write(2);
buf.Write(3);
buf.Write(4);
Assert.AreEqual(4, buf[0]);
Assert.AreEqual(3, buf[1]);
Assert.AreEqual(2, buf[2]);
Assert.AreEqual(3, buf.Count);
Assert.AreEqual(4, buf.Current);
buf.Write(5);
buf.Write(6);
buf.Write(7);
Assert.AreEqual(7, buf[0]);
Assert.AreEqual(6, buf[1]);
Assert.AreEqual(5, buf[2]);
Assert.AreEqual(3, buf.Count);
Assert.AreEqual(7, buf.Current);
}
public void TestWriteBeyondCapacityTwiceShouldRollOverTwice()
{
LookBehindPool <byte> buf = new LookBehindPool <byte>(3);
buf.Write(1);
buf.Write(2);
buf.Write(3);
buf.Write(4);
Assert.AreEqual(4, buf[0]);
Assert.AreEqual(3, buf[1]);
Assert.AreEqual(2, buf[2]);
Assert.AreEqual(3, buf.Count);
Assert.AreEqual(4, buf.Current);
buf.Write(5);
buf.Write(6);
buf.Write(7);
Assert.AreEqual(7, buf[0]);
Assert.AreEqual(6, buf[1]);
Assert.AreEqual(5, buf[2]);
Assert.AreEqual(3, buf.Count);
Assert.AreEqual(7, buf.Current);
}
public void TestShouldThrowAnExceptionWhenIndexIsOutOfRange()
{
LookBehindPool <byte> buf = new LookBehindPool <byte>(3);
buf.Write(1);
int errorLine = buf[1];
}
public void InvalidLengthExceptionTest()
{
try
{
LookBehindPool <byte> buf = new LookBehindPool <byte>(0);
Assert.Fail();
}
catch (Exception ex)
{
Assert.IsTrue(ex.Message == "Length must be greater than zero.");
}
}
public void TestWritesShouldStoreValues()
{
LookBehindPool <byte> buf = new LookBehindPool <byte>(10);
buf.Write(1);
buf.Write(2);
buf.Write(3);
Assert.AreEqual(3, buf[0]);
Assert.AreEqual(2, buf[1]);
Assert.AreEqual(1, buf[2]);
Assert.AreEqual(3, buf.Count);
}
public void BasicTest()
{
LookBehindPool <byte> buf = new LookBehindPool <byte>(10);
buf.Write(1);
buf.Write(2);
buf.Write(3);
Assert.AreEqual(3, buf[0]);
Assert.AreEqual(2, buf[1]);
Assert.AreEqual(1, buf[2]);
Assert.AreEqual(3, buf.Count);
}
public void OutOfRangeExceptionTest()
{
LookBehindPool <byte> buf = new LookBehindPool <byte>(3);
buf.Write(1);
try
{
int errorLine = buf[1];
Assert.Fail();
}
catch (Exception ex)
{
Assert.IsTrue(ex.Message == "Index out of range. Value must be from 0 to 0");
}
}
public void TestAccessToExpiredBookmarkUsingPreviousShouldThrowAnException()
{
LookBehindPool <byte> lbp = new LookBehindPool <byte>(3);
lbp.Write(1);
lbp.Write(2);
lbp.Write(3);
Bookmark <byte> bm = new Bookmark <byte>();
bm.Set(lbp);
lbp.Write(4);
lbp.Write(5);
Assert.AreEqual(5, lbp.Current);
Assert.AreEqual(2, bm.Previous);
}
public void TestBookmarkShouldRetainIndexReference()
{
LookBehindPool <byte> lbp = new LookBehindPool <byte>(10);
lbp.Write(1);
lbp.Write(2);
lbp.Write(3);
Bookmark <byte> bm = new Bookmark <byte>();
bm.Set(lbp);
lbp.Write(4);
lbp.Write(5);
lbp.Write(6);
Assert.AreEqual(6, lbp.Current);
Assert.AreEqual(3, bm.Current);
}
