public void Read_NewReader_ReturnsFirstChar()
{
IInputReader stream = new StringInputReader("abc");
char result = (char)stream.Read();
Assert.AreEqual('a', result);
}
public void Read_NonAsciiChars()
{
IInputReader stream = new StringInputReader("éすå");
Assert.AreEqual('é', stream.Read());
Assert.AreEqual('す', stream.Read());
Assert.AreEqual('å', stream.Read());
}
public void EndOfStream_CharsLeftToRead_ReturnsFalse()
{
IInputReader stream = new StringInputReader("abc");
stream.Read();
Assert.IsFalse(stream.EndOfStream);
}
public void EndOfStream_NoCharsLeftToRead_ReturnsTrue()
{
IInputReader stream = new StringInputReader("a");
stream.Read();
Assert.IsTrue(stream.EndOfStream);
}
public void Read_EndOfString_ReturnsCharNull()
{
IInputReader stream = new StringInputReader("");
char result = stream.Read();
Assert.AreEqual('\0', result);
}
public void Read_ReadsCharAtPosition()
{
IInputReader stream = new StringInputReader("abc");
stream.Read();
char result = (char)stream.Read();
Assert.AreEqual('b', result);
}
public void GetPosition_NothingRead()
{
IInputReader stream = new StringInputReader("");
Position position = stream.GetPosition();
Assert.AreEqual(0, position.Offset, "offset");
Assert.AreEqual(1, position.Line, "Line");
Assert.AreEqual(1, position.Column, "Column");
}
public void GetPosition_Read_DoesNotUpdateReturnedPosition()
{
IInputReader stream = new StringInputReader("abc");
Position position = stream.GetPosition();
stream.Read();
Assert.AreEqual(0, position.Offset, "Offset");
Assert.AreEqual(1, position.Line, "Line");
Assert.AreEqual(1, position.Column, "Column");
}
public void GetPosition_ReadChar()
{
IInputReader stream = new StringInputReader("abc\nxyz");
stream.Read();
Position position = stream.GetPosition();
Assert.AreEqual(1, position.Offset, "offset");
Assert.AreEqual(1, position.Line, "Line");
Assert.AreEqual(2, position.Column, "Column");
}
public void Seek_UpdatesPosition()
{
IInputReader stream = new StringInputReader("abc");
Position position = stream.GetPosition();
stream.Read();
stream.Read();
stream.Seek(position);
Position newPosition = stream.GetPosition();
Assert.AreEqual(position, newPosition);
char result = (char)stream.Read();
Assert.AreEqual('a', result);
}
