public void ShouldPowerFraction()
{
var fractionResponse = new FractionResponse { Fraction = new FractionModel { Numerator = 8, Denominator = 27 } };
_client.Expect(c => c.Power(2, 3, 3)).Return(fractionResponse);
var result = _helper.ParseExpression("2/3 ^ 3");
Assert.IsNotNull(result);
Assert.AreEqual("8/27", result);
}
public void ShouldDivide2Fractions()
{
var fractionResponse = new FractionResponse { Fraction = new FractionModel { Numerator = 5, Denominator = 6 } };
_client.Expect(c => c.Divide(2, 3, 4, 5)).Return(fractionResponse);
var result = _helper.ParseExpression("2/3 / 4/5");
Assert.IsNotNull(result);
Assert.AreEqual("5/6", result);
}
public void ShouldMultiply2Fractions()
{
var fractionResponse = new FractionResponse { Fraction = new FractionModel { Numerator = 8, Denominator = 15 } };
_client.Expect(c => c.Multiply(2, 3, 4, 5)).Return(fractionResponse);
var result = _helper.ParseExpression("2/3 * 4/5");
Assert.IsNotNull(result);
Assert.AreEqual("8/15", result);
}
public void ShouldSubtractTwoFractionsCallingFractionServiceWebApi()
{
FractionModel fraction = new FractionModel { Numerator = 1, Denominator = 6 };
FractionResponse fractionResponse = new FractionResponse { Fraction = fraction };
var response = new RestResponse<FractionResponse> { Data = fractionResponse, StatusCode = HttpStatusCode.OK };
_restClient.Expect(
rc =>
rc.Execute<FractionResponse>(
Arg<RestRequest>.Matches(
rr => rr.Method == Method.POST && rr.Resource.Equals("api/Fractions/Subtract"))))
.Return(response);
var result = _client.Subtract(1, 2, 1, 3);
_restClient.VerifyAllExpectations();
Assert.IsNotNull(result);
Assert.AreEqual(1, result.Fraction.Numerator);
Assert.AreEqual(6, result.Fraction.Denominator);
}
public void ShouldReturnIntegerWhenOperatingOnFractions()
{
var fractionResponse = new FractionResponse { Fraction = new FractionModel { Numerator = 2, Denominator = 1 } };
_client.Expect(c => c.Multiply(2, 3, 3, 1)).Return(fractionResponse);
var result = _helper.ParseExpression("2/3 * 3");
Assert.IsNotNull(result);
Assert.AreEqual("2", result);
}
private string FractionToString(FractionResponse response)
{
if (response.Fraction.Denominator == 1)
return $"{response.Fraction.Numerator}";
return $"{response.Fraction.Numerator}/{response.Fraction.Denominator}";
}