public ParserContext(ParserConfiguration configuration, string text)
{
Configuration = configuration;
Result = new ParseResult();
Lexer = new Lexer(text);
Mapper = new CommandMapper(Configuration.Commands);
}
public void InvalidFirstWordRejected()
{
ParserCommand command1 = new ParserCommand("add file");
ParserCommand command2 = new ParserCommand("add comment");
var mapper = new CommandMapper(new[] { command1, command2 });
mapper.Advance("remove");
mapper.State.ShouldBe(MapperState.Rejected);
}
public void CanFindOneAndOnly()
{
ParserCommand command = new ParserCommand("add");
var mapper = new CommandMapper(new[] { command });
mapper.Advance("add");
mapper.State.ShouldBe(MapperState.Accepted);
mapper.Command.ShouldBe(command);
}
public void CanFindSecondOfTwo()
{
ParserCommand command1 = new ParserCommand("add");
ParserCommand command2 = new ParserCommand("remove");
var mapper = new CommandMapper(new[] { command1, command2 });
mapper.Advance("remove");
mapper.State.ShouldBe(MapperState.Accepted);
mapper.Command.ShouldBe(command2);
}
public void CanFindTwoWordCommand()
{
ParserCommand command1 = new ParserCommand("add file");
ParserCommand command2 = new ParserCommand("add comment");
var mapper = new CommandMapper(new[] { command1, command2 });
mapper.State.ShouldBe(MapperState.Initial);
mapper.Advance("add");
mapper.State.ShouldBe(MapperState.Pending);
mapper.Advance("comment");
mapper.State.ShouldBe(MapperState.Accepted);
mapper.Command.ShouldBe(command2);
}
public void InvalidSecondWordRejected()
{
ParserCommand command1 = new ParserCommand("add file");
ParserCommand command2 = new ParserCommand("add comment");
var mapper = new CommandMapper(new[] { command1, command2 });
mapper.Advance("add");
mapper.State.ShouldBe(MapperState.Pending);
mapper.Advance("junk");
mapper.State.ShouldBe(MapperState.Rejected);
}