public void Execute_CalculatorInstanceIsNull_PrintsError()
{
var consoleMock = new ConsoleWrapperFake();
string expectedResultMessage = $"Error: Calculator instance was not initialized";
var calcManager = new CalculatorManager(null, consoleMock);
calcManager.Execute();
Assert.Contains(expectedResultMessage, consoleMock.WriteLog);
}
/// <summary>
/// Demo of UseIConsole
/// </summary>
private static void UseIConsole()
{
IConsole c = new ConsoleWrapper();
Console.WriteLine(AskUserName(c));
c = new ConsoleWrapperFake();
for (int i = 0; i < 3; i++)
{
Console.WriteLine(AskUserName(c));
}
}
public void Execute_CalculatorThrowsException_PrintsErrorMessage()
{
string errorMessage = "Test message";
var calcStub = new Mock <ICalculator>();
calcStub.Setup(x => x.Calculate(It.IsAny <string>())).Throws(new Exception(errorMessage));
var consoleMock = new ConsoleWrapperFake();
string expectedResultMessage = $"Error: {errorMessage}";
var calcManager = new CalculatorManager(calcStub.Object, consoleMock);
calcManager.Execute();
Assert.Contains(expectedResultMessage, consoleMock.WriteLog);
}
public void Execute_PassesRightValueToCalculator(string input)
{
var calcMock = new Mock <ICalculator>();
calcMock.Setup(x => x.Calculate(It.IsAny <string>())).Returns(new CalculationResult());
var consoleStub = new ConsoleWrapperFake();
consoleStub.SetupReadKeysQueue(input);
var calcManager = new CalculatorManager(calcMock.Object, consoleStub);
calcManager.Execute();
calcMock.Verify(x => x.Calculate(input), Times.Once());
}
public void Execute_PrintsIntroMessage()
{
var calcStub = new Mock <ICalculator>();
calcStub.Setup(x => x.Calculate(It.IsAny <string>())).Returns(new CalculationResult());
var consoleMock = new ConsoleWrapperFake();
string expectedIntroMessage = "Enter numbers separated by commas or new line (CTRL+ENTER)."
+ Environment.NewLine
+ "When done, press ENTER.";
var calcManager = new CalculatorManager(calcStub.Object, consoleMock);
calcManager.Execute();
Assert.Contains(expectedIntroMessage, consoleMock.WriteLog);
}
public void Execute_CalculatorComputesResult_PrintsFormula()
{
string formula = "1+2+3=6";
var calcStub = new Mock <ICalculator>();
calcStub.Setup(x => x.Calculate(It.IsAny <string>())).Returns(new CalculationResult {
Formula = formula
});
var consoleMock = new ConsoleWrapperFake();
string expectedResultMessage = $"Formula: {formula}";
var calcManager = new CalculatorManager(calcStub.Object, consoleMock);
calcManager.Execute();
Assert.Contains(expectedResultMessage, consoleMock.WriteLog);
}
public void Execute_CalculatorComputesResult_PrintsResult()
{
int result = 123;
var calcStub = new Mock <ICalculator>();
calcStub.Setup(x => x.Calculate(It.IsAny <string>())).Returns(new CalculationResult {
Result = result
});
var consoleMock = new ConsoleWrapperFake();
string expectedResultMessage = $"Result: {result}";
var calcManager = new CalculatorManager(calcStub.Object, consoleMock);
calcManager.Execute();
Assert.Contains(expectedResultMessage, consoleMock.WriteLog);
}
public void Execute_EnteringNewLineKey_AddsNewLineCharacterToUserInputString()
{
var calcMock = new Mock <ICalculator>();
calcMock.Setup(x => x.Calculate(It.IsAny <string>())).Returns(new CalculationResult());
var consoleStub = new ConsoleWrapperFake();
consoleStub.KeysToRead.Clear();
consoleStub.KeysToRead.Enqueue(TestHelpers.ConsoleKeyInfoFromChar('1'));
consoleStub.KeysToRead.Enqueue(TestHelpers.ConsoleKeyInfoFromChar(','));
consoleStub.KeysToRead.Enqueue(TestHelpers.ConsoleKeyInfoFromChar('2'));
var newLineKey = new ConsoleKeyInfo('\n', ConsoleKey.Enter, false, false, false);
consoleStub.KeysToRead.Enqueue(newLineKey);
consoleStub.KeysToRead.Enqueue(TestHelpers.ConsoleKeyInfoFromChar('3'));
consoleStub.KeysToRead.Enqueue(consoleStub.EnterKey);
string expectedInputString = "1,2\n3";
var calcManager = new CalculatorManager(calcMock.Object, consoleStub);
calcManager.Execute();
calcMock.Verify(x => x.Calculate(expectedInputString), Times.Once());
}
