/usr/share/pyshared/graphy/backends/google_chart_api/util_test.py is in python-graphy 1.0+dfsg-3.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 | #!/usr/bin/python2.4
#
# Copyright 2008 Google Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""Unittest for Graphy and Google Chart API backend."""
import string
import unittest
from graphy import graphy_test
from graphy.backends.google_chart_api import util
class SimpleEncoderTest(graphy_test.GraphyTest):
def setUp(self):
self.simple = util.SimpleDataEncoder()
def testEmpty(self):
self.assertEqual('', self.simple.Encode([]))
def testSingle(self):
self.assertEqual('A', self.simple.Encode([0]))
def testFull(self):
full = string.ascii_uppercase + string.ascii_lowercase + string.digits
self.assertEqual(full, self.simple.Encode(range(0, 62)))
def testRoundingError(self):
"""Scaling might give us some rounding error. Make sure that the encoder
deals with it properly.
"""
a = [-1, 0, 0, 1, 60, 61, 61, 62]
b = [-0.999999, -0.00001, 0.00001, 0.99998,
60.00001, 60.99999, 61.00001, 61.99998]
self.assertEqual(self.simple.Encode(a), self.simple.Encode(b))
def testFloats(self):
ints = [1, 2, 3, 4]
floats = [1.1, 2.1, 3.1, 4.1]
self.assertEqual(self.simple.Encode(ints), self.simple.Encode(floats))
def testOutOfRangeDropped(self):
"""Confirm that values outside of min/max are left blank."""
nums = [-79, -1, 0, 1, 61, 62, 1012]
self.assertEqual('__AB9__', self.simple.Encode(nums))
def testNoneDropped(self):
"""Confirm that the value None is left blank."""
self.assertEqual('_JI_H', self.simple.Encode([None, 9, 8, None, 7]))
class EnhandedEncoderTest(graphy_test.GraphyTest):
def setUp(self):
self.encoder = util.EnhancedDataEncoder()
def testEmpty(self):
self.assertEqual('', self.encoder.Encode([]))
def testFull(self):
full = ''.join(self.encoder.code)
self.assertEqual(full, self.encoder.Encode(range(0, 4096)))
def testOutOfRangeDropped(self):
nums = [-79, -1, 0, 1, 61, 4096, 10012]
self.assertEqual('____AAABA9____', self.encoder.Encode(nums))
def testNoneDropped(self):
self.assertEqual('__AJAI__AH', self.encoder.Encode([None, 9, 8, None, 7]))
class ScaleTest(graphy_test.GraphyTest):
"""Test scaling."""
def testScaleIntegerData(self):
scale = util.ScaleData
# Identity
self.assertEqual([1, 2, 3], scale([1, 2, 3], 1, 3, 1, 3))
self.assertEqual([-1, 0, 1], scale([-1, 0, 1], -1, 1, -1, 1))
# Translate
self.assertEqual([4, 5, 6], scale([1, 2, 3], 1, 3, 4, 6))
self.assertEqual([-3, -2, -1], scale([1, 2, 3], 1, 3, -3, -1))
# Scale
self.assertEqual([1, 3.5, 6], scale([1, 2, 3], 1, 3, 1, 6))
self.assertEqual([-6, 0, 6], scale([1, 2, 3], 1, 3, -6, 6))
# Scale and Translate
self.assertEqual([100, 200, 300], scale([1, 2, 3], 1, 3, 100, 300))
def testScaleDataWithDifferentMinMax(self):
scale = util.ScaleData
self.assertEqual([1.5, 2, 2.5], scale([1, 2, 3], 0, 4, 1, 3))
self.assertEqual([-2, 2, 6], scale([0, 2, 4], 1, 3, 0, 4))
def testScaleFloatingPointData(self):
scale = util.ScaleData
data = [-3.14, -2.72, 0, 2.72, 3.14]
scaled_e = 5 + 5 * 2.72 / 3.14
expected_data = [0, 10 - scaled_e, 5, scaled_e, 10]
actual_data = scale(data, -3.14, 3.14, 0, 10)
for expected, actual in zip(expected_data, actual_data):
self.assertAlmostEqual(expected, actual)
def testScaleDataOverRealRange(self):
scale = util.ScaleData
self.assertEqual([0, 30.5, 61], scale([1, 2, 3], 1, 3, 0, 61))
def testScalingLotsOfData(self):
data = range(0, 100)
expected = range(-100, 100, 2)
actual = util.ScaleData(data, 0, 100, -100, 100)
self.assertEqual(expected, actual)
class NameTest(graphy_test.GraphyTest):
"""Test long/short parameter names."""
def testLongNames(self):
params = dict(size='S', data='D', chg='G')
params = util.ShortenParameterNames(params)
self.assertEqual(dict(chs='S', chd='D', chg='G'), params)
def testCantUseBothLongAndShortName(self):
"""Make sure we don't let the user specify both the long and the short
version of a parameter. (If we did, which one would we pick?)
"""
params = dict(size='long', chs='short')
self.assertRaises(KeyError, util.ShortenParameterNames, params)
if __name__ == '__main__':
unittest.main()
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