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101 lines
3.3 KiB
Python
101 lines
3.3 KiB
Python
# -*- Mode: Python -*-
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# vi:si:et:sw=4:sts=4:ts=4
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#
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# gst-python - Python bindings for GStreamer
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# Copyright (C) 2007 Johan Dahlin
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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import gobject
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gobject.threads_init()
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from common import gst, TestCase
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F = gst.Fraction
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class TestFraction(TestCase):
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def testConstructor(self):
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frac = F(1, 2)
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self.assertEquals(frac.num, 1)
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self.assertEquals(frac.denom, 2)
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frac = F(1)
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self.assertEquals(frac.num, 1)
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self.assertEquals(frac.denom, 1)
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self.assertRaises(TypeError, F)
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def testRepr(self):
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self.assertEquals(repr(F(1, 2)), '<gst.Fraction 1/2>')
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def testEqNe(self):
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frac = F(1, 2)
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self.assertEquals(frac, frac)
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self.assertEquals(F(1, 2), F(1, 2))
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self.assertEquals(F(2, 4), F(1, 2))
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self.assertNotEquals(F(1, 3), F(1, 2))
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self.assertNotEquals(F(2, 1), F(1, 2))
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def testMul(self):
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self.assertEquals(F(1, 2) * F(1, 2), F(1, 4))
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self.assertEquals(F(2, 3) * F(4, 5), F(8, 15))
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self.assertEquals(F(1, 3) * F(4), F(4, 3))
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self.assertEquals(F(1, 3) * 4, F(4, 3))
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def testRMul(self):
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self.assertEquals(2 * F(1, 2), F(1))
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self.assertEquals(4 * F(1, 2), F(2))
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self.assertEquals(-10 * F(1, 2), F(-5))
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def testDiv(self):
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self.assertEquals(F(1, 3) / F(1, 4), F(4, 3))
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self.assertEquals(F(2, 3) / F(4, 5), F(10, 12))
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self.assertEquals(F(1, 3) / F(4), F(1, 12))
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self.assertEquals(F(1, 3) / 4, F(1, 12))
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self.assertEquals(F(1, 3) / 2, F(1, 6))
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self.assertEquals(F(1, 5) / -4, F(1, -20))
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def testRDiv(self):
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self.assertEquals(2 / F(1, 3), F(6, 1))
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self.assertEquals(-4 / F(1, 5), F(-20, 1))
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def testFloat(self):
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self.assertEquals(float(F(1, 2)), 0.5)
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def testPropertyMarshalling(self):
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try:
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obj = gst.element_factory_make("videoparse")
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except gst.ElementNotFoundError:
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# no videoparse and I don't know of any elements in core or -base using
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# fraction properties. Skip this test.
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return
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value = obj.props.framerate
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self.failUnlessEqual(value.num, 25)
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self.failUnlessEqual(value.denom, 1)
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obj.props.framerate = gst.Fraction(2, 1)
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value = obj.props.framerate
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self.failUnlessEqual(value.num, 2)
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self.failUnlessEqual(value.denom, 1)
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def bad():
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obj.props.framerate = 1
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self.failUnlessRaises(TypeError, bad)
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value = obj.props.framerate
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self.failUnlessEqual(value.num, 2)
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self.failUnlessEqual(value.denom, 1)
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