public void Test_End_To_End() { string input = "9\r\n" + "8\r\n" + "nothing\r\n" + "13\r\n" + "-87\r\n" + "2"; string expected = "9:3,3\r\n" + "8:2,2,2\r\n" + "13:13\r\n" + "-87:1\r\n" + "2:2\r\n"; var standardOut = new StringWriter(); var errorOut = new StringWriter(); var logger = new ConsoleLogger(standardOut, errorOut); IPrimeFactorCalculator calculator = new PrimeFactorCalculator(); // The main calculator. calculator = new PrimeFactorOutputWriter(calculator, logger); // Our formatter for dumping to the console calculator = new PrimeFactorExceptionLogger(calculator, logger); // An exception handler that can log errors for us. var path = TempFileHelpers.CreateTestFile(input); IIntegerReader reader = new IntegerFileReader(path); int? number; while ((number = reader.ReadNext()) != null) { calculator.Execute(number.Value); } Assert.AreEqual(expected, standardOut.ToString()); Assert.AreEqual(string.Empty, errorOut.ToString()); }
public void Test_Garbage_Multiple_Numbers() { var path = TempFileHelpers.CreateTestFile("321\r\n123"); var reader = new IntegerFileReader(path); var number = reader.ReadNext(); Assert.IsTrue(number.HasValue); Assert.AreEqual(321, number.Value); number = reader.ReadNext(); Assert.IsTrue(number.HasValue); Assert.AreEqual(123, number.Value); }
public void Test_Empty_File() { var path = TempFileHelpers.CreateTestFile(string.Empty); var reader = new IntegerFileReader(path); // Make sure that we don't read anything. Assert.AreEqual(reader.ReadNext(), null); }
public void Test_Garbage_Before_Number_File() { var path = TempFileHelpers.CreateTestFile("Stuff\r\n123"); var reader = new IntegerFileReader(path); var number = reader.ReadNext(); Assert.IsTrue(number.HasValue); Assert.AreEqual(123, number.Value); }
public void Test_Missing_File() { var path = Path.Combine(Path.GetTempPath(), "FileThatDoesNotExist.txt"); // Ensure that the file wasn't created for whatever reason. Assert.IsFalse(File.Exists(path)); var reader = new IntegerFileReader(path); Assert.Throws<FileNotFoundException>(() => reader.ReadNext(), "A missing file exeption was not fired." ); }