public void IsExcludedFromBackupKey()
{
// NOTE: this test was failing with either NullReferenceException or InvalidCastException
// when we used CFBoolean as a NSObject (i.e. CFBoolean.TrueObject). The test order execution
// was important to track this down
NSObject value;
Assert.True(NSBundle.MainBundle.ExecutableUrl.TryGetResource(NSUrl.IsExcludedFromBackupKey, out value), "MainBundle");
Assert.That(value, Is.TypeOf(typeof(NSNumber)), "NSNumber");
Assert.That((int)(value as NSNumber), Is.EqualTo(0), "0");
string filename = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), "DoNotBackupMe-NSUrl");
try {
File.WriteAllText(filename, "not worth a bit");
using (NSUrl url = NSUrl.FromFilename(filename)) {
Assert.True(url.TryGetResource(NSUrl.IsExcludedFromBackupKey, out value));
Assert.That((int)(value as NSNumber), Is.EqualTo(0), "DoNotBackupMe-0");
url.SetResource(NSUrl.IsExcludedFromBackupKey, (NSNumber)1);
Assert.True(url.TryGetResource(NSUrl.IsExcludedFromBackupKey, out value));
Assert.That((int)(value as NSNumber), Is.EqualTo(1), "DoNotBackupMe-1");
NSError error;
NSDictionary dict = url.GetResourceValues(new NSString [] { NSUrl.IsExcludedFromBackupKey }, out error);
Assert.Null(error, "error");
Assert.That(dict.Keys [0], Is.EqualTo(NSUrl.IsExcludedFromBackupKey), "Key");
Assert.That((int)(dict.Values [0] as NSNumber), Is.EqualTo(1), "Value");
}
}
finally {
// otherwise the attribute won't reset even if the file is overwritten
File.Delete(filename);
}
}
/// <summary>
/// iOS ONLY - To Comply with iOS iCloud backup restrictions
/// <para>Makes sure that the no archive attribute is set for this url in Documents.</para>
/// </summary>
protected virtual void ExcludeFromBackup (NSUrl filePathURL)
{
filePathURL.SetResource(NSUrl.IsExcludedFromBackupKey, (NSNumber.FromBoolean(true)));
}