From 9b18a14ed49351304e1ac4d63d1a6411d22bb1a0 Mon Sep 17 00:00:00 2001 From: Olivier Tilloy Date: Tue, 30 Nov 2010 20:48:22 +0100 Subject: Unit tests for Rational conversions in XMP tags. --- test/xmp.py | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) (limited to 'test/xmp.py') diff --git a/test/xmp.py b/test/xmp.py index 10e03a8..845b048 100644 --- a/test/xmp.py +++ b/test/xmp.py @@ -27,7 +27,7 @@ import unittest from pyexiv2.xmp import XmpTag, XmpValueError -from pyexiv2.utils import FixedOffset +from pyexiv2.utils import FixedOffset, Rational, Fraction import datetime @@ -281,6 +281,31 @@ class TestXmpTag(unittest.TestCase): # Invalid values self.failUnlessRaises(XmpValueError, tag._convert_to_string, None, 'URL') + def test_convert_to_python_rational(self): + # Valid values + tag = XmpTag('Xmp.xmpDM.videoPixelAspectRatio') + self.assertEqual(tag.type, 'Rational') + self.assertEqual(tag._convert_to_python('5/3', 'Rational'), Rational(5, 3)) + self.assertEqual(tag._convert_to_python('-5/3', 'Rational'), Rational(-5, 3)) + + # Invalid values + self.failUnlessRaises(XmpValueError, tag._convert_to_python, 'invalid', 'Rational') + self.failUnlessRaises(XmpValueError, tag._convert_to_python, '5 / 3', 'Rational') + self.failUnlessRaises(XmpValueError, tag._convert_to_python, '5/-3', 'Rational') + + def test_convert_to_string_rational(self): + # Valid values + tag = XmpTag('Xmp.xmpDM.videoPixelAspectRatio') + self.assertEqual(tag.type, 'Rational') + self.assertEqual(tag._convert_to_string(Rational(5, 3), 'Rational'), '5/3') + self.assertEqual(tag._convert_to_string(Rational(-5, 3), 'Rational'), '-5/3') + if Fraction is not None: + self.assertEqual(tag._convert_to_string(Fraction('1.6'), 'Rational'), '8/5') + self.assertEqual(tag._convert_to_string(Fraction('-1.6'), 'Rational'), '-8/5') + + # Invalid values + self.failUnlessRaises(XmpValueError, tag._convert_to_string, 'invalid', 'Rational') + # TODO: other types -- cgit