public void Reverser_Should_Use_The_FileWriter()
{
//Arrange
var outPath = "This is a mock output path";
var reveresedLines = new List <string>();
var readerMock = new Mock <IFileReader>();
var writerMock = new Mock <IFileWriter>();
var logicMock = new Mock <IReversalLogic>();
logicMock.Setup(x => x.Reverse(It.IsAny <List <string> >())).Returns(reveresedLines);
var sut = new FileReverser(readerMock.Object, writerMock.Object, logicMock.Object);
//Act
sut.Reverse("inPath", outPath);
//Assert
writerMock.Verify(x => x.WriteLines(reveresedLines, outPath), Times.Once);
}
public void Reverser_Should_Use_The_FileReader()
{
//Arrange
var filePath = "This is a mock file path";
var readerMock = new Mock <IFileReader>();
var writerMock = new Mock <IFileWriter>();
var logicMock = new Mock <IReversalLogic>();
var sut = new FileReverser(readerMock.Object, writerMock.Object, logicMock.Object);
//Act
sut.Reverse(filePath, "outPath");
//Assert
readerMock.Verify(x => x.ReadLines(filePath), Times.Once);
}
static void Main(string[] args)
{
//Usually you'd set this up with DI
var fileReverser = new FileReverser(
new DefaultFileReader(),
new DefaultFileWriter(),
new ReversalLogic());
//There error handling here is poorly designed and there is no validation
//The focus of this exercise was not the console app
try
{
Console.Write("Input path: ");
var inPath = Console.ReadLine();
Console.Write("Output path:");
var outPath = Console.ReadLine();
var outFile = fileReverser.Reverse(inPath, outPath);
Console.WriteLine();
Console.WriteLine($"File created: {outFile.FullName}");
Console.WriteLine($"Contents:\n\n");
foreach (var line in File.ReadLines(outFile.FullName))
{
Console.WriteLine(line);
}
}
catch (Exception ex)
{
Console.WriteLine();
Console.WriteLine(ex.Message);
}
Console.ReadLine();
}
public void Reverser_Should_Use_The_ReversalLogic()
{
//Arrange
var lines = new List <string>();
var readerMock = new Mock <IFileReader>();
readerMock.Setup(x => x.ReadLines(It.IsAny <string>())).Returns(lines);
var writerMock = new Mock <IFileWriter>();
var logicMock = new Mock <IReversalLogic>();
var sut = new FileReverser(readerMock.Object, writerMock.Object, logicMock.Object);
//Act
sut.Reverse("inPath", "outPath");
//Assert
logicMock.Verify(x => x.Reverse(lines), Times.Once);
}