public void ProcessCommandLineArguments_TooFewArgumentsSupplied()
{
// arrange
var filterName = "filterName";
var filename = "file.txt";
var expectedMessage = "Error: Expecting 2 command line arguments";
var mockLogger = new Mock <ILogger <CommandLineProcessorService> >();
var mockOutputService = new Mock <IOutputService>();
var mockFilterFactory = new Mock <IFilterFactory>();
var commandLineProcessorService = new CommandLineProcessorService(
mockLogger.Object, mockOutputService.Object, mockFilterFactory.Object);
// logging extension methods cannot be setup/verified
mockOutputService
.Setup(x => x.OutputMessage(expectedMessage))
.Verifiable();
mockOutputService
.Setup(x => x.OutputMessage(commandLineProcessorService.usage))
.Verifiable();
// act
commandLineProcessorService.ProcessCommandLineArguments(
new string[] { filterName });
// assert
mockOutputService.VerifyAll();
mockOutputService.VerifyNoOtherCalls();
mockFilterFactory.VerifyAll();
mockFilterFactory.VerifyNoOtherCalls();
}
public void ProcessCommandLineArguments_CannotFindFilter()
{
// arrange
var filterName = "filterName";
var filename = "file.txt";
var expectedErrorMessage = "Error: filter \"filterName\" not found";
var mockLogger = new Mock <ILogger <CommandLineProcessorService> >();
var mockOutputService = new Mock <IOutputService>();
var mockFilterFactory = new Mock <IFilterFactory>();
var commandLineProcessorService = new CommandLineProcessorService(
mockLogger.Object, mockOutputService.Object, mockFilterFactory.Object);
mockFilterFactory
.Setup(x => x.CreateFilter(filterName))
.Throws(new FilterNotFoundException(filterName))
.Verifiable();
mockOutputService
.Setup(x => x.OutputMessage(expectedErrorMessage))
.Verifiable();
mockOutputService
.Setup(x => x.OutputMessage(commandLineProcessorService.usage))
.Verifiable();
// act
commandLineProcessorService.ProcessCommandLineArguments(new string[] { filterName, filename });
// assert
mockOutputService.VerifyAll();
mockOutputService.VerifyNoOtherCalls();
mockFilterFactory.VerifyAll();
mockFilterFactory.VerifyNoOtherCalls();
}
public void ProcessCommandLineArguments_OtherExceptionThrown()
{
// arrange
var filterName = "filterName";
var filename = "file.txt";
var expectedErrorMessage = "Something went wrong";
var mockLogger = new Mock <ILogger <CommandLineProcessorService> >();
var mockOutputService = new Mock <IOutputService>();
var mockFilterFactory = new Mock <IFilterFactory>();
var mockFilter = new Mock <IWordFilter>();
var commandLineProcessorService = new CommandLineProcessorService(
mockLogger.Object, mockOutputService.Object, mockFilterFactory.Object);
mockFilterFactory
.Setup(x => x.CreateFilter(filterName))
.Returns(mockFilter.Object)
.Verifiable();
mockFilter
.Setup(x => x.Filter(It.IsAny <string>()))
.Throws(new Exception("just because"))
.Verifiable();
mockOutputService
.Setup(x => x.OutputMessage(expectedErrorMessage))
.Verifiable();
mockOutputService
.Setup(x => x.OutputMessage(commandLineProcessorService.usage))
.Verifiable();
// act
commandLineProcessorService.ProcessCommandLineArguments(new string[] { filterName, filename });
// assert
mockOutputService.VerifyAll();
mockOutputService.VerifyNoOtherCalls();
mockFilterFactory.VerifyAll();
mockFilterFactory.VerifyNoOtherCalls();
mockFilter.VerifyAll();
mockFilter.VerifyNoOtherCalls();
}
public void ProcessCommandLineArguments_FileFoundAndFiltered()
{
// arrange
var filterName = "filterName";
var filename = "file.txt";
var filteredString = "filtered string";
var mockLogger = new Mock <ILogger <CommandLineProcessorService> >();
var mockOutputService = new Mock <IOutputService>();
var mockFilterFactory = new Mock <IFilterFactory>();
var mockFilter = new Mock <IWordFilter>();
var commandLineProcessorService = new CommandLineProcessorService(
mockLogger.Object, mockOutputService.Object, mockFilterFactory.Object);
mockFilterFactory
.Setup(x => x.CreateFilter(filterName))
.Returns(mockFilter.Object)
.Verifiable();
mockFilter
.Setup(x => x.Filter(It.IsAny <string>()))
.Returns(filteredString)
.Verifiable();
mockOutputService
.Setup(x => x.OutputMessage($"string filtered by {filterName}:"))
.Verifiable();
mockOutputService
.Setup(x => x.OutputMessage(filteredString))
.Verifiable();
// act
commandLineProcessorService.ProcessCommandLineArguments(new string[] { filterName, filename });
// assert
mockOutputService.VerifyAll();
mockOutputService.VerifyNoOtherCalls();
mockFilterFactory.VerifyAll();
mockFilterFactory.VerifyNoOtherCalls();
mockFilter.VerifyAll();
mockFilter.VerifyNoOtherCalls();
}
