public void DisplayNameForNonExistingProduct_ReturnsEmptyString()
 {
     var wip = new WindowsInstallerProduct("NonexistingUid");
       Assert.AreEqual(true, wip.DisplayName.Equals(""));
 }
 public void IsNonExistingProductInstalled_ReturnsFalse()
 {
     var wip = new WindowsInstallerProduct("NonexistingUid");
       Assert.AreEqual(false, wip.isInstalled);
 }
 public void DisplayNameForExistingProduct_ReturnsName()
 {
     var wip = new WindowsInstallerProduct(visualStudioUID);
       Assert.AreEqual(true, wip.DisplayName.Contains("Visual Studio"));
 }