private void SetCalculationManager(out ICalculatorManager manager)
{
_view.DisplayMessage("Select way for calculating: " +
"\npress 1 - via file; " +
"\npress 2 - via console " +
"\npress 0 - to exit");
while (true)
{
int result = 0;
while (!int.TryParse(_view.GetUserResponse(), out result))
{
_view.DisplayMessage("Wrong number, try again.");
}
switch (result)
{
case 0:
manager = null;
return;
case 1:
manager = new FileCalculator(_view);
return;
case 2:
manager = new ConsoleCalculator(_view);
return;
default:
manager = null;
break;
}
}
}
public FileCalculatorTests(int fileSize = 1024)
{
this.fileSize = fileSize;
fileNumber = 3;
sut = new FileCalculator();
}
public void RunTaskFileCalculation()
{
Console.WriteLine("____________Task File Calculation____________");
ICalculator calculator = new FileCalculator();
calculator.ExecuteCalculation();
Console.WriteLine("The result is written into file");
}
public void Calculate_FromInvalidFile()
{
//arrange
var calculator = new FileCalculator(new FileProcessor());
//act
calculator.Calculate(_testFileName);
}
public void Calculate_FromValidFileInvalidCalculation()
{
//arrange
string[] input = { @"1+x+4" };
processorMock.Setup(x => x.GetContent(_testFileName)).Returns(input);
string[] actualResult = null;
processorMock.Setup(x => x.WriteContent(It.IsAny <string>())).Callback((string[] output) =>
{
actualResult = output;
});
var calculator = new FileCalculator(processorMock.Object);
//act
calculator.Calculate(_testFileName);
//assert
Assert.AreEqual($"1+x+4 = {_errorMessage}", actualResult[0]);
}
public void Calculate_FromValidFileDivisionByZero()
{
//arrange
string[] input = { @"5/0" };
processorMock.Setup(x => x.GetContent(_testFileName)).Returns(input);
string[] actualResult = null;
processorMock.Setup(x => x.WriteContent(It.IsAny <string>())).Callback((string[] output) =>
{
actualResult = output;
});
var calculator = new FileCalculator(processorMock.Object);
//act
calculator.Calculate(_testFileName);
//assert
Assert.AreEqual("5/0 = Division by zero", actualResult[0]);
}
public void Calculate_FromValidFileValidMultiLineCalculation()
{
//arrange
string[] input = { @"2+15/3+4*2", @"1+2*(3+2)" };
processorMock.Setup(x => x.GetContent(_testFileName)).Returns(input);
string[] actualResult = null;
processorMock.Setup(x => x.WriteContent(It.IsAny <string[]>())).Callback((string[] output) =>
{
actualResult = output;
});
var calculator = new FileCalculator(processorMock.Object);
//act
calculator.Calculate(_testFileName);
//assert
Assert.AreEqual("2+15/3+4*2 = 15", actualResult[0]);
Assert.AreEqual("1+2*(3+2) = 11", actualResult[1]);
}
