public void TestMethodAssertFileNotExists() { const string UnitTestFile = @"c:\temp\TestMethodAssertFileNotExists.txt"; var myLogger = new Stf.Utilities.StfLogger { FileName = @"c:\temp\unittestlogger_AssertFileNotExists.html" }; var myAsserts = new StfAssert(myLogger); myAsserts.EnableNegativeTesting = true; if (File.Exists(UnitTestFile)) { File.Delete(UnitTestFile); } Assert.IsTrue(myAsserts.AssertFileNotExists("TestStepName 1", UnitTestFile)); var testFile = File.CreateText(UnitTestFile); testFile.WriteLine("one line of test data"); testFile.Close(); Assert.IsFalse(myAsserts.AssertFileNotExists("TestStepName 2", UnitTestFile)); }