def test_get_available_formats(self):
# Test with an empty Clipboard instance.
c = Clipboard()
self.assertEqual(c.get_available_formats(), [])
# Test with one format.
c = Clipboard(contents={format_unicode: u"unicode text"})
self.assertEqual(c.get_available_formats(), [format_unicode])
# Test with two formats.
c = Clipboard(contents={format_unicode: u"unicode text",
format_text: u"text"})
self.assertEqual(c.get_available_formats(), [format_unicode,
format_text],
"format_unicode should precede format_text")
# Test with text formats and one custom format. The preferred text
# format should be first on the list.
format_custom = 0
c = Clipboard(contents={format_custom: 123,
format_unicode: u"unicode text"})
self.assertEqual(c.get_available_formats(), [format_unicode,
format_custom],
"format_unicode should precede format_custom")
c = Clipboard(contents={format_custom: 123,
format_text: b"text"})
self.assertEqual(c.get_available_formats(), [format_text,
format_custom],
"format_text should precede format_custom")
# Test with no text format and one custom format.
c = Clipboard(contents={format_custom: 123})
self.assertEqual(c.get_available_formats(), [format_custom])
