public void InvokeReadAllText_WhenFileReaderIsValid()
{
//Arrange
var fakeFileReader = new Mock <IFileReader>();
var command = new HelpCommand(fakeFileReader.Object);
//Act
var result = command.ExecuteThisCommand();
//Assert
fakeFileReader.Verify(v => v.ReadAllText(It.IsAny <string>()), Times.Once);
}
public void ReturnTheCorrectResult_WhenCommandExecutionFinish()
{
//Arrange
var fakeFileReader = new Mock <IFileReader>();
var command = new HelpCommand(fakeFileReader.Object);
fakeFileReader.Setup(s => s.ReadAllText(It.IsAny <string>())).Returns("test");
var expectedResult = "test";
//Act
var actualResult = command.ExecuteThisCommand();
//Assert
Assert.AreEqual(expectedResult, actualResult);
}