public void TestIntsNotFloats()
{
var lex = new FloatLexer(new StringReader("1"));
var tok = lex.Scan();
Assert.AreEqual(tok.tag, Tag.INTEGER);
}
public void TestFloatsWithFractionalPart()
{
var lex = new FloatLexer(new StringReader("321.32"));
var tok = lex.Scan();
Assert.AreEqual(tok.tag, Tag.FLOAT);
Assert.AreEqual(((FloatToken)tok).value, 321.32f);
}
public static void TestExtra3()
{
System.Console.WriteLine("\n------------------");
System.Console.WriteLine("\nTests for ExtraTask 3");
string input = "123.45678";
Lexer L = new FloatLexer(input);
try
{
L.Parse();
}
catch (LexerException e)
{
System.Console.WriteLine(e.Message);
}
input = "0.1234";
L = new FloatLexer(input);
try
{
L.Parse();
}
catch (LexerException e)
{
System.Console.WriteLine(e.Message);
}
System.Console.WriteLine("\nThere should be errors:");
input = "12.";
L = new FloatLexer(input);
try
{
L.Parse();
}
catch (LexerException e)
{
System.Console.WriteLine(e.Message);
}
input = "12";
L = new FloatLexer(input);
try
{
L.Parse();
}
catch (LexerException e)
{
System.Console.WriteLine(e.Message);
}
input = ".12";
L = new FloatLexer(input);
try
{
L.Parse();
}
catch (LexerException e)
{
System.Console.WriteLine(e.Message);
}
input = "a";
L = new FloatLexer(input);
try
{
L.Parse();
}
catch (LexerException e)
{
System.Console.WriteLine(e.Message);
}
input = "";
L = new FloatLexer(input);
try
{
L.Parse();
}
catch (LexerException e)
{
System.Console.WriteLine(e.Message);
}
}
