public void Test_HideIpAddressByLocalhost_ForHundredLines() { //Arrange string testedFilePath = TestFiles.CreateTempFile(@"..\..\InputTestFiles\HundredLogFileIpAddress.txt"); string expectedFilePath = @"..\..\ExpectedTestFiles\HundredLogFileIpAddress.txt"; Mutator mutator = new Mutator(); //Act mutator.HideIpAddressByLocalhost(testedFilePath); //Assert bool areFilesEqual = TestFiles.AreFilesEqual(expectedFilePath, testedFilePath, out string message); Assert.IsTrue(areFilesEqual, $"Expected file and current result file are not the same. {message}"); }