void TestTokenPrinter(string expresion, TokenPrinter.FixType fixType, string expectedOutput)
{
var expr = Parser.ParseExpression(expresion);
expr.Should().NotBeNull($"parsing '{expresion}' should succeed.");
expr.Accept(new TokenPrinter(fixType)).Trim().Should().Be(expectedOutput.Trim(), $"output should match with {fixType}");
}
public static string Print(this IToken token, TokenPrinter.FixType fixType = TokenPrinter.DefaultFixType) => token.Accept(new TokenPrinter(fixType));
public static void CompareParseTree(string input, string expectedParseString = null, TokenPrinter.FixType fixType = TokenPrinter.FixType.Postfix)
{
IToken rawToken = null;
try
{
rawToken = Parser.ParseExpression(input);
}
catch (ParseException)
{
if (string.IsNullOrWhiteSpace(expectedParseString))
{
return;
}
}
// If expectedTokenStr is null, then we expect the parse to fail.
// No need to check anything else after that
if (string.IsNullOrWhiteSpace(expectedParseString))
{
rawToken.Should().BeNull();
return;
}
rawToken.Should().NotBeNull("the token should parse correctly");
var parseText = rawToken.Print(fixType).Trim();
parseText.Should().BeEquivalentTo(expectedParseString.Trim());
}