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80 lines
2.5 KiB
Python
80 lines
2.5 KiB
Python
# Copyright 2018 The pybadge Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# https://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""Tests for PrecalculatedTextMeasurer."""
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import unittest
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from pybadges import precalculated_text_measurer
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class TestPrecalculatedTextMeasurer(unittest.TestCase):
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def test_some_known_widths(self):
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measurer = precalculated_text_measurer.PrecalculatedTextMeasurer(
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default_character_width=5.1,
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char_to_width={
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'H': 1.2,
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'l': 1.3
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},
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pair_to_kern={})
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text_width = measurer.text_width('Hello')
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self.assertAlmostEqual(text_width, 1.2 + 5.1 + 1.3 + 1.3 + 5.1)
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def test_kern_in_middle(self):
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measurer = precalculated_text_measurer.PrecalculatedTextMeasurer(
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default_character_width=5,
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char_to_width={},
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pair_to_kern={
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'el': 3.3,
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'll': 4.4,
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'no': 5.5
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})
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text_width = measurer.text_width('Hello')
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self.assertAlmostEqual(text_width, 5 * 5 - 3.3 - 4.4)
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def test_kern_at_start(self):
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measurer = precalculated_text_measurer.PrecalculatedTextMeasurer(
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default_character_width=5,
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char_to_width={},
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pair_to_kern={
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'He': 3.3,
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'no': 4.4
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})
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text_width = measurer.text_width('Hello')
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self.assertAlmostEqual(text_width, 5 * 5 - 3.3)
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def test_kern_at_end(self):
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measurer = precalculated_text_measurer.PrecalculatedTextMeasurer(
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default_character_width=5,
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char_to_width={},
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pair_to_kern={
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'lo': 3.3,
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'no': 4.4
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})
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text_width = measurer.text_width('Hello')
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self.assertAlmostEqual(text_width, 5 * 5 - 3.3)
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def test_default_usable(self):
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measurer = (
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precalculated_text_measurer.PrecalculatedTextMeasurer.default())
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measurer.text_width('This is a long string of text')
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if __name__ == '__main__':
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unittest.main()
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