public void testConsumeIf()
{
Lexer lexer = new Lexer("abcd");
Assert.IsFalse(lexer.consumeIf("xab"));
Assert.IsTrue(lexer.consumeIf("ab"));
Assert.IsFalse(lexer.consumeIf("ycd"));
Assert.IsTrue(lexer.consumeIf("cd"));
Assert.IsTrue(lexer.eof());
}
public void testConsume()
{
Lexer lexer = new Lexer("123");
lexer.consume(2);
Assert.IsTrue(lexer.consumeIf("3"));
Assert.IsTrue(lexer.eof());
}
public void testNextIs()
{
Lexer lexer = new Lexer("abcd");
Assert.IsFalse(lexer.nextIs("xab"));
Assert.IsFalse(lexer.nextIs("abx"));
Assert.IsTrue(lexer.nextIs("ab"));
Assert.IsTrue(lexer.consumeIf("ab"));
Assert.IsFalse(lexer.nextIs("ycd"));
Assert.IsTrue(lexer.nextIs("cd"));
}
