Canon/Canon.Tests/LexicalParserTests/NumberTests.cs

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using Canon.Core.Enums;
using Canon.Core.LexicalParser;
using Canon.Core.Exceptions;
using Xunit.Abstractions;
using Canon.Tests.Utils;
using Canon.Core.Abstractions;
namespace Canon.Tests.LexicalParserTests
{
public class NumberTests
{
private readonly ILexer _lexer = new Lexer();
private readonly ITestOutputHelper _testOutputHelper;
public NumberTests(ITestOutputHelper testOutputHelper)
{
_testOutputHelper = testOutputHelper;
}
[Theory]
[InlineData("123", "123", NumberType.Integer)]
[InlineData("0", "0", NumberType.Integer)]
[InlineData("1.23", "1.23", NumberType.Real)]
[InlineData("0.0", "0.0", NumberType.Real)]
[InlineData("1e7", "1e7", NumberType.Real)]
[InlineData("1E7", "1E7", NumberType.Real)]
[InlineData("1.23e-7", "1.23e-7", NumberType.Real)]
[InlineData("1.23E-7", "1.23E-7", NumberType.Real)]
[InlineData("1234567890", "1234567890", NumberType.Integer)]
[InlineData("1234567890.1234567890", "1234567890.1234567890", NumberType.Real)]
[InlineData("1e-7", "1e-7", NumberType.Real)]
[InlineData("1E-7", "1E-7", NumberType.Real)]
[InlineData(".67",".67", NumberType.Real)]
[InlineData("$123", "0x123", NumberType.Hex)]
public void TestParseNumber(string input, string expected, NumberType expectedNumberType)
{
IEnumerable<SemanticToken> tokensEnumerable = _lexer.Tokenize(new StringSourceReader(input));
List<SemanticToken> tokens = tokensEnumerable.ToList();
SemanticToken token = tokens[0];
Assert.Equal(SemanticTokenType.Number, token.TokenType);
NumberSemanticToken numberSemanticToken = (NumberSemanticToken)token;
Assert.Equal(expectedNumberType, numberSemanticToken.NumberType);
Assert.Equal(expected, numberSemanticToken.LiteralValue);
}
[Theory]
[InlineData("1E", 1, 2, LexemeErrorType.IllegalNumberFormat)]
[InlineData("123abc", 1, 4, LexemeErrorType.IllegalNumberFormat)]
[InlineData("123.45.67", 1, 7, LexemeErrorType.IllegalNumberFormat)]
[InlineData("123identifier", 1, 4, LexemeErrorType.IllegalNumberFormat)]
public void TestParseNumberError(string input, uint expectedLine, uint expectedCharPosition, LexemeErrorType expectedErrorType)
{
var ex = Assert.Throws<LexemeException>(() => _lexer.Tokenize(new StringSourceReader(input)).ToList());
_testOutputHelper.WriteLine(ex.ToString());
Assert.Equal(expectedErrorType, ex.ErrorType);
Assert.Equal(expectedLine, ex.Line);
Assert.Equal(expectedCharPosition, ex.CharPosition);
}
}
}