public void Should_Fail_On_Empty_Expression()
{
var sut = new ConstantParserPart();
Assert.Throws <ArgumentException>(() => sut.TryParse(null, 1, out _));
Assert.Throws <ArgumentException>(() => sut.TryParse(string.Empty, 1, out _));
Assert.Throws <ArgumentException>(() => sut.TryParse(" ", 1, out _));
}
public void Should_Parse_Constants(string expression, decimal expectedValue)
{
var sut = new ConstantParserPart();
var couldParse = sut.TryParse(expression, 0, out var symbol);
Assert.True(couldParse);
Assert.Equal(SymbolType.Constant, symbol.Type);
Assert.Equal(expectedValue, symbol.Value);
}