public void Convert_NegativeSimpleNumber_ThrowsArgumentException()
{
var adder = new Adder();
Expect(() => adder.Convert("-100"), Throws.ArgumentException);
Expect(() => adder.Convert("100-"), Throws.ArgumentException);
Expect(() => adder.Convert("100-"), Throws.ArgumentException);
}
public void Convert_Null_ThrowsArgumentNullException()
{
var adder = new Adder();
Expect(() => adder.Convert(null), Throws.ArgumentNullException
.With.Message.Contains("Empty")
.And.Property("ParamName").Contains("amount"));
}
public void Convert_CorrectComplexNumber_ConvertsItToDecimalOfSum()
{
var adder = new Adder();
var actual = adder.Convert("100 + 100");
Expect(actual, EqualTo(200m));
}
public void Convert_PositiveSimpleNumber_ConvertsItToDecimal()
{
var adder = new Adder();
var actual = adder.Convert("100");
Expect(actual, EqualTo(100m));
}
public void Convert_NegativeComplexNumber_ThrowsArgumentException()
{
var adder = new Adder();
Expect(() => adder.Convert("-100"), Throws.ArgumentException
.With.Message.Contains("Negative")
.And.Property("ParamName").Contains("sum"));
Expect(() => adder.Convert("100-"), Throws.ArgumentException
.With.Message.Contains("Negative")
.And.Property("ParamName").Contains("sum"));
Expect(() => adder.Convert("-100 + 20"), Throws.ArgumentException
.With.Message.Contains("Negative")
.And.Property("ParamName").Contains("sum"));
Expect(() => adder.Convert("-100 + -20"), Throws.ArgumentException
.With.Message.Contains("Negative")
.And.Property("ParamName").Contains("sum"));
}
public void Convert_IncorrectComplexNumber_ThrowsFormatException()
{
var adder = new Adder();
Expect(() => adder.Convert("100 + "), Throws.TypeOf <FormatException>());
Expect(() => adder.Convert("100+ "), Throws.TypeOf <FormatException>());
Expect(() => adder.Convert("100+"), Throws.TypeOf <FormatException>());
Expect(() => adder.Convert("-100-"), Throws.TypeOf <FormatException>());
Expect(() => adder.Convert("awd"), Throws.TypeOf <FormatException>());
Expect(() => adder.Convert("+@#$"), Throws.TypeOf <FormatException>());
}