public void Should_match_the_string_at_the_start_of_the_input()
{
const string hello = "Hello";
var parser = new ConstantStringParser(hello);
var parsed = parser.ParseString("Hello, World.");
Assert.IsTrue(parsed.HasValue);
Assert.AreEqual(hello, parsed.Value);
}
public void Should_match_the_string_at_the_start_of_the_input()
{
const string hello = "Hello";
var parser = new ConstantStringParser(hello);
var parsed = parser.ParseString("Hello, World.");
Assert.IsTrue(parsed.HasValue);
Assert.AreEqual(hello, parsed.Value);
}
public void Should_support_a_single_parser()
{
var parser = new ConstantStringParser("Hello");
var visualizer = new ParserVisualizer();
parser.Accept(visualizer);
string text = visualizer.ToString();
string expected = @"(String) == ""Hello""";
Assert.AreEqual(expected, text);
}
public void Should_not_match_without_whitespace_filter()
{
string subject = " \t\r\n\tHello";
var helloParser = new ConstantStringParser("Hello");
var parser = from value in helloParser
select value;
var result = parser.ParseString(subject);
Assert.IsFalse(result.HasValue);
}
public void Should_not_match_without_whitespace_filter()
{
string subject = " \t\r\n\tHello";
var helloParser = new ConstantStringParser("Hello");
var parser = from value in helloParser
select value;
var result = parser.ParseString(subject);
Assert.IsFalse(result.HasValue);
}
public void Should_support_a_single_parser()
{
var parser = new ConstantStringParser("Hello");
var visualizer = new ParserVisualizer();
parser.Accept(visualizer);
string text = visualizer.ToString();
string expected = @"(String) == ""Hello""";
Assert.AreEqual(expected, text);
}
public void Should_not_match_digits()
{
const string subject = "v120";
var sp = new ConstantStringParser("X");
var parser = from x in sp.Regex(@"\d+")
select x;
var result = parser.ParseString(subject);
Assert.IsFalse(result.HasValue);
Assert.AreEqual(0, result.Next.Offset);
}
public void Should_not_match_digits()
{
const string subject = "v120";
var sp = new ConstantStringParser("X");
var parser = from x in sp.Regex(@"\d+")
select x;
var result = parser.ParseString(subject);
Assert.IsFalse(result.HasValue);
Assert.AreEqual(0, result.Next.Offset);
}
public void Should_continue_with_the_next_string_match()
{
const string hello = "Hello";
var parser = new ConstantStringParser(hello);
var parsed = parser.ParseString("Hello, World.");
const string world = ", World";
var nextParser = new ConstantStringParser(world);
var nextParsed = nextParser.Parse(parsed.Next);
Assert.IsTrue(nextParsed.HasValue);
Assert.AreEqual(world, nextParsed.Value);
}
public void Should_continue_with_the_next_string_match()
{
const string hello = "Hello";
var parser = new ConstantStringParser(hello);
var parsed = parser.ParseString("Hello, World.");
const string world = ", World";
var nextParser = new ConstantStringParser(world);
var nextParsed = nextParser.Parse(parsed.Next);
Assert.IsTrue(nextParsed.HasValue);
Assert.AreEqual(world, nextParsed.Value);
}
public void Should_be_possible()
{
const string subject = "Hello, World.";
var constant = "Hello";
var helloParser = new ConstantStringParser(constant);
var query = from hello in helloParser
select hello;
var parsed = query.ParseString(subject);
Assert.IsTrue(parsed.HasValue);
Assert.AreEqual(constant, parsed.Value);
}
public void Should_be_possible()
{
const string subject = "Hello, World.";
var constant = "Hello";
var helloParser = new ConstantStringParser(constant);
var query = from hello in helloParser
select hello;
var parsed = query.ParseString(subject);
Assert.IsTrue(parsed.HasValue);
Assert.AreEqual(constant, parsed.Value);
}
