/+junk/pygooglechart-py3k

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bzr branch http://gegoxaren.bato24.eu/bzr/%2Bjunk/pygooglechart-py3k
36 by gak
- Really added initial unit tests
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import unittest
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import sys
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import os
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import warnings
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ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
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sys.path.insert(0, ROOT)
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import pygooglechart as gc
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class TestBase(unittest.TestCase):
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    def setUp(self):
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        # All tests require warnings to be raised
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        self.raise_warnings(True)
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    def raise_warnings(self, rw):
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        gc._reset_warnings()
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        if rw:
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            warnings.simplefilter('error')
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        else:
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            # Don't print out warnings if we're expecting them--so we can have
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            # nicer looking tests! :)
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            warnings.simplefilter('ignore')
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class TestDataTypes(TestBase):
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    def test_simple_data(self):
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        s = gc.SimpleData([range(0, 62), [0, 1, 60, 61]])
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        self.assertEquals(repr(s),
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            'chd=s:ABCDEFGHIJKLMNOPQRSTUVWXYZ'
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            'abcdefghijklmnopqrstuvwxyz0123456789,AB89')
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    def test_text_data(self):
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        s = gc.TextData([[0, 1, 99.9]])
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        self.assertEquals(repr(s), 'chd=t:0.0,1.0,99.9')
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    def test_ext_data(self):
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        s = gc.ExtendedData([[0, 1, 4095]])
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        self.assertEquals(repr(s), 'chd=e:AAAB..')
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class TestScaling(TestBase):
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    def test_simple_scale(self):
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        sv = gc.SimpleData.scale_value
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        self.raise_warnings(False)  # We know some of these give warnings
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        self.assertEquals(sv(-10, [0, 1]), 0)
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        self.assertEquals(sv(0, [0, 1]), 0)
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        self.assertEquals(sv(.5, [0, 1]), 31)
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        self.assertEquals(sv(30, [0, 1]), 61)
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        self.assertEquals(sv(2222, [0, 10000]), 14)
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        # Test for warnings
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        self.raise_warnings(True)
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        self.assertRaises(UserWarning, sv, -10, [0, 1])
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        self.assertRaises(UserWarning, sv, 30, [0, 1])
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    def test_text_scale(self):
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        sv = gc.TextData.scale_value
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        self.raise_warnings(False)
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        self.assertEquals(sv(-10, [0, 1]), 0)
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        self.assertEquals(sv(0, [0, 1]), 0)
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        self.assertEquals(sv(.5, [0, 1]), 50)
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        self.assertEquals(sv(30, [0, 1]), 100)
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        self.assertEquals(sv(2222, [0, 10000]), 22.22)
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        self.raise_warnings(True)
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        sv(-10, [0, 1])
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#        self.assertRaises(UserWarning, sv, -10, [0, 1])
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#        self.assertEquals(UserWarning, sv, 30, [0, 1])
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    def test_ext_scale(self):
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        sv = gc.ExtendedData.scale_value
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        self.raise_warnings(False)
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        self.assertEquals(sv(-10, [0, 1]), 0)
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        self.assertEquals(sv(0, [0, 1]), 0)
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        self.assertEquals(sv(.5, [0, 1]), 2048)
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        self.assertEquals(sv(30, [0, 1]), 4095)
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        self.assertEquals(sv(2222, [0, 10000]), 910)
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        self.raise_warnings(True)
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        self.assertRaises(UserWarning, sv, -10, [0, 1])
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        self.assertRaises(UserWarning, sv, 30, [0, 1])
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class TestGrammar(TestBase):
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    types = ('Venn', 'GroupedHorizontalBar', 'GoogleOMeter', 'Scatter',
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        'StackedVerticalBar', 'Map', 'StackedHorizontalBar', 'SimpleLine',
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        'SparkLine', 'GroupedVerticalBar', 'SplineRadar', 'XYLine', 'Radar')
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    def test_chart_types(self):
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        ret = gc.ChartGrammar.get_possible_chart_types()
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        diff = set(ret).symmetric_difference(set(TestGrammar.types))
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        self.assert_(not diff)
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    def test_google_chart(self):
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        g = {
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            'type': 'GoogleOMeter',
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            'w': 100,
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            'h': 100,
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            'auto_scale': True,
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            'x_range': [ 0, 10 ],
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            'data': [
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                [ 1, 5, 10 ]
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            ],
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        }
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        grammar = gc.ChartGrammar()
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        chart = grammar.parse(g)
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        print chart.get_url()
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#        chart.download('meh.png')
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if __name__ == "__main__":
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    unittest.main()
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    suite = unittest.TestSuite()
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    suite.addTest(TestScaling('test_ext_scale'))
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    unittest.TextTestRunner().run(suite)
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