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import os
import warnings
import leather
TEST_SVG = '.test.svg'
class TestChart(leather.LeatherTestCase):
def setUp(self):
self.data1 = [
(0, 3),
(4, 5),
(7, 9),
(8, 4)
]
self.data2 = [
(0, 4),
(1, 3),
(2, 5),
(5, 6),
(9, 10)
]
def tearDown(self):
if os.path.exists(TEST_SVG):
os.remove(TEST_SVG)
def test_single_series(self):
chart = leather.Chart()
chart.add_dots(self.data1)
svg = self.render_chart(chart)
self.assertElementCount(svg, '.axis', 2)
self.assertElementCount(svg, '.series', 1)
self.assertElementCount(svg, '.dots', 1)
self.assertElementCount(svg, 'circle', 4)
def test_multiple_series(self):
chart = leather.Chart()
chart.add_dots(self.data1)
chart.add_dots(self.data2)
svg = self.render_chart(chart)
self.assertElementCount(svg, '.axis', 2)
self.assertElementCount(svg, '.series', 2)
self.assertElementCount(svg, '.dots', 2)
self.assertElementCount(svg, 'circle', 9)
def test_unicode(self):
chart = leather.Chart()
chart.add_bars([(1, '👍')])
svg = self.render_chart(chart)
self.assertElementCount(svg, '.axis', 2)
self.assertElementCount(svg, '.series', 1)
def test_set_scales(self):
chart = leather.Chart()
chart.set_x_scale(leather.Linear(0, 20))
chart.set_y_scale(leather.Linear(0, 20))
chart.add_dots(self.data1)
svg = self.render_chart(chart)
self.assertTickLabels(svg, 'left', ['5', '10', '15', '20', '0'])
self.assertTickLabels(svg, 'bottom', ['5', '10', '15', '20', '0'])
def test_add_scales(self):
chart = leather.Chart()
chart.add_x_scale(0, 20)
chart.add_y_scale(0, 20)
chart.add_dots(self.data1)
svg = self.render_chart(chart)
self.assertTickLabels(svg, 'left', ['5', '10', '15', '20', '0'])
self.assertTickLabels(svg, 'bottom', ['5', '10', '15', '20', '0'])
def test_scale_domain_warning(self):
chart = leather.Chart()
chart.add_x_scale(4, 7)
chart.add_y_scale(0, 20)
chart.add_dots(self.data1)
with warnings.catch_warnings():
warnings.simplefilter('error')
with self.assertRaises(UserWarning):
self.render_chart(chart)
def test_set_axes(self):
chart = leather.Chart()
chart.set_x_axis(leather.Axis(ticks=[0, 4, 8]))
chart.set_y_axis(leather.Axis(ticks=[3, 6, 9]))
chart.add_dots(self.data1)
svg = self.render_chart(chart)
self.assertTickLabels(svg, 'left', ['3', '6', '9'])
self.assertTickLabels(svg, 'bottom', ['4', '8', '0'])
def test_add_axes(self):
chart = leather.Chart()
chart.add_x_axis(ticks=[0, 4, 8])
chart.add_y_axis(ticks=[3, 6, 9])
chart.add_dots(self.data1)
svg = self.render_chart(chart)
self.assertTickLabels(svg, 'left', ['3', '6', '9'])
self.assertTickLabels(svg, 'bottom', ['4', '8', '0'])
def test_to_svg_file_name(self):
chart = leather.Chart()
chart.add_dots(self.data1)
chart.to_svg('.test.svg')
self.assertTrue(os.path.exists(TEST_SVG))
def test_to_svg_file_handle(self):
chart = leather.Chart()
chart.add_dots(self.data1)
with open('.test.svg', 'w') as f:
chart.to_svg(f)
self.assertTrue(os.path.exists(TEST_SVG))
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