def test_hermite_kochanek_bartels(Chart, datas):
"""Test hermite kochanek bartels interpolation"""
chart = Chart(interpolate='hermite',
interpolation_parameters={
'type': 'kochanek_bartels',
'b': -1,
'c': 1,
't': 1
})
chart = make_data(chart, datas)
assert chart.render()
chart = Chart(interpolate='hermite',
interpolation_parameters={
'type': 'kochanek_bartels',
'b': -1,
'c': -8,
't': 0
})
chart = make_data(chart, datas)
assert chart.render()
chart = Chart(interpolate='hermite',
interpolation_parameters={
'type': 'kochanek_bartels',
'b': 0,
'c': 10,
't': -1
})
chart = make_data(chart, datas)
assert chart.render()
def test_cubic_prec(Chart, datas):
chart = Chart(interpolate='cubic', interpolation_precision=200)
chart = make_data(chart, datas)
chart_low = Chart(interpolate='cubic', interpolation_precision=5)
chart_low = make_data(chart, datas)
assert len(chart.render()) >= len(chart_low.render())
def test_cubic_prec(Chart, datas):
chart = Chart(interpolate='cubic', interpolation_precision=200)
chart = make_data(chart, datas)
chart_low = Chart(interpolate='cubic', interpolation_precision=5)
chart_low = make_data(chart, datas)
assert len(chart.render()) >= len(chart_low.render())
def test_cubic_prec(Chart, datas):
"""Test cubic interpolation precision"""
chart = Chart(interpolate="cubic", interpolation_precision=200)
chart = make_data(chart, datas)
chart_low = Chart(interpolate="cubic", interpolation_precision=5)
chart_low = make_data(chart, datas)
assert len(chart.render()) >= len(chart_low.render())
def test_multi_render(Chart, datas):
"""Check that a chart always render the same"""
chart = Chart()
chart = make_data(chart, datas)
svg = chart.render()
for i in range(2):
assert svg == chart.render()
def test_hermite_kochanek_bartels(Chart, datas):
chart = Chart(interpolate="hermite", interpolation_parameters={"type": "kochanek_bartels", "b": -1, "c": 1, "t": 1})
chart = make_data(chart, datas)
assert chart.render()
chart = Chart(
interpolate="hermite", interpolation_parameters={"type": "kochanek_bartels", "b": -1, "c": -8, "t": 0}
)
chart = make_data(chart, datas)
assert chart.render()
chart = Chart(
interpolate="hermite", interpolation_parameters={"type": "kochanek_bartels", "b": 0, "c": 10, "t": -1}
)
chart = make_data(chart, datas)
assert chart.render()
def test_hermite_cardinal(Chart, datas):
chart = Chart(interpolate='hermite',
interpolation_parameters={
'type': 'cardinal',
'c': .75
})
chart = make_data(chart, datas)
assert chart.render()
def test_multi_render(Chart, datas):
chart = Chart()
chart = make_data(chart, datas)
chart.x_labels = (str(a) for a in 'labels')
chart.y_labels = (str(a) for a in range(6))
svg = chart.render()
for i in range(2):
assert svg == chart.render()
def test_hermite_catmull_rom(Chart, datas):
"""Test hermite catmull rom interpolation"""
chart = Chart(
interpolate='hermite',
interpolation_parameters={'type': 'catmull_rom'}
)
chart = make_data(chart, datas)
assert chart.render()
def test_hermite_finite(Chart, datas):
"""Test hermite finite difference interpolation"""
chart = Chart(
interpolate='hermite',
interpolation_parameters={'type': 'finite_difference'}
)
chart = make_data(chart, datas)
assert chart.render()
def test_hermite_kochanek_bartels(Chart, datas):
chart = Chart(interpolate='hermite',
interpolation_parameters={
'type': 'kochanek_bartels', 'b': -1, 'c': 1, 't': 1})
chart = make_data(chart, datas)
assert chart.render()
chart = Chart(interpolate='hermite',
interpolation_parameters={
'type': 'kochanek_bartels', 'b': -1, 'c': -8, 't': 0})
chart = make_data(chart, datas)
assert chart.render()
chart = Chart(interpolate='hermite',
interpolation_parameters={
'type': 'kochanek_bartels', 'b': 0, 'c': 10, 't': -1})
chart = make_data(chart, datas)
assert chart.render()
def test_long_title(Chart, datas):
chart = Chart(
title="A chart is a graphical representation of data, in which "
"'the data is represented by symbols, such as bars in a bar chart, "
"lines in a line chart, or slices in a pie chart'. A chart can "
"represent tabular numeric data, functions or some kinds of "
"qualitative structure and provides different info.")
chart = make_data(chart, datas)
q = chart.render_pyquery()
assert len(q('.titles text')) == 5
def test_render_to_file(Chart, datas):
file_name = '/tmp/test_graph-%s.svg' % uuid.uuid4()
if os.path.exists(file_name):
os.remove(file_name)
chart = Chart()
chart = make_data(chart, datas)
chart.render_to_file(file_name)
with open(file_name) as f:
assert 'pygal' in f.read()
os.remove(file_name)
def test_render_to_file(Chart, datas):
file_name = '/tmp/test_graph-%s.svg' % uuid.uuid4()
if os.path.exists(file_name):
os.remove(file_name)
chart = Chart()
chart = make_data(chart, datas)
chart.render_to_file(file_name)
with open(file_name) as f:
assert 'pygal' in f.read()
os.remove(file_name)
def test_hermite_cardinal(Chart, datas):
"""Test hermite cardinal interpolation"""
chart = Chart(
interpolate='hermite',
interpolation_parameters={
'type': 'cardinal',
'c': .75
}
)
chart = make_data(chart, datas)
assert chart.render()
def test_render_to_file(Chart, datas):
"""Test in file rendering"""
file_name = '/tmp/test_graph-%s.svg' % uuid.uuid4()
if os.path.exists(file_name):
os.remove(file_name)
chart = Chart()
chart = make_data(chart, datas)
chart.render_to_file(file_name)
with io.open(file_name, encoding="utf-8") as f:
assert 'pygal' in f.read()
os.remove(file_name)
def test_render_to_png(Chart, datas):
file_name = '/tmp/test_graph-%s.png' % uuid.uuid4()
if os.path.exists(file_name):
os.remove(file_name)
chart = Chart()
chart = make_data(chart, datas)
chart.render_to_png(file_name)
png = chart._repr_png_()
with open(file_name, 'rb') as f:
assert png == f.read()
os.remove(file_name)
def test_render_to_png(Chart, datas):
try:
import cairosvg
except ImportError:
return
file_name = '/tmp/test_graph-%s.png' % uuid.uuid4()
if os.path.exists(file_name):
os.remove(file_name)
chart = Chart()
chart = make_data(chart, datas)
chart.render_to_png(file_name)
with open(file_name, 'rb') as f:
assert f.read()
os.remove(file_name)
def test_render_to_png(Chart, datas):
try:
import cairosvg
except ImportError:
return
file_name = '/tmp/test_graph-%s.png' % uuid.uuid4()
if os.path.exists(file_name):
os.remove(file_name)
chart = Chart()
chart = make_data(chart, datas)
chart.render_to_png(file_name)
with open(file_name, 'rb') as f:
assert f.read()
os.remove(file_name)
def test_hermite(Chart, datas):
chart = Chart(interpolate='hermite')
chart = make_data(chart, datas)
assert chart.render()
def test_quadratic(Chart, datas):
"""Test quadratic interpolation"""
chart = Chart(interpolate="quadratic")
chart = make_data(chart, datas)
assert chart.render()
def test_hermite_cardinal(Chart, datas):
"""Test hermite cardinal interpolation"""
chart = Chart(interpolate="hermite", interpolation_parameters={"type": "cardinal", "c": 0.75})
chart = make_data(chart, datas)
assert chart.render()
def test_ipython_notebook(Chart, datas):
"""Test ipython notebook"""
chart = Chart()
chart = make_data(chart, datas)
assert chart._repr_svg_()
def test_sparkline(Chart, datas):
"""Test sparkline"""
chart = Chart()
chart = make_data(chart, datas)
assert chart.render_sparkline()
def test_quadratic(Chart, datas):
chart = Chart(interpolate='quadratic')
chart = make_data(chart, datas)
assert chart.render()
def test_quadratic(Chart, datas):
"""Test quadratic interpolation"""
chart = Chart(interpolate='quadratic')
chart = make_data(chart, datas)
assert chart.render()
def test_lagrange(Chart, datas):
"""Test lagrange interpolation"""
chart = Chart(interpolate="lagrange")
chart = make_data(chart, datas)
assert chart.render()
def test_trigonometric(Chart, datas):
"""Test trigonometric interpolation"""
chart = Chart(interpolate="trigonometric")
chart = make_data(chart, datas)
assert chart.render()
def test_hermite(Chart, datas):
"""Test hermite interpolation"""
chart = Chart(interpolate="hermite")
chart = make_data(chart, datas)
assert chart.render()
def test_multi_render(Chart, datas):
chart = Chart()
chart = make_data(chart, datas)
svg = chart.render()
for i in range(2):
assert svg == chart.render()
def test_hermite_catmull_rom(Chart, datas):
"""Test hermite catmull rom interpolation"""
chart = Chart(interpolate="hermite", interpolation_parameters={"type": "catmull_rom"})
chart = make_data(chart, datas)
assert chart.render()
def test_trigonometric(Chart, datas):
chart = Chart(interpolate='trigonometric')
chart = make_data(chart, datas)
assert chart.render()
def test_lagrange(Chart, datas):
chart = Chart(interpolate='lagrange')
chart = make_data(chart, datas)
assert chart.render()
def test_lagrange(Chart, datas):
"""Test lagrange interpolation"""
chart = Chart(interpolate='lagrange')
chart = make_data(chart, datas)
assert chart.render()
def test_multi_render(Chart, datas):
chart = Chart()
chart = make_data(chart, datas)
svg = chart.render()
for i in range(2):
assert svg == chart.render()
def test_trigonometric(Chart, datas):
"""Test trigonometric interpolation"""
chart = Chart(interpolate='trigonometric')
chart = make_data(chart, datas)
assert chart.render()
def test_hermite(Chart, datas):
"""Test hermite interpolation"""
chart = Chart(interpolate='hermite')
chart = make_data(chart, datas)
assert chart.render()
def test_hermite_finite(Chart, datas):
"""Test hermite finite difference interpolation"""
chart = Chart(interpolate='hermite',
interpolation_parameters={'type': 'finite_difference'})
chart = make_data(chart, datas)
assert chart.render()
def test_cubic(Chart, datas):
chart = Chart(interpolate='cubic')
chart = make_data(chart, datas)
assert chart.render()
def test_hermite_catmull_rom(Chart, datas):
"""Test hermite catmull rom interpolation"""
chart = Chart(interpolate='hermite',
interpolation_parameters={'type': 'catmull_rom'})
chart = make_data(chart, datas)
assert chart.render()
def test_cubic(Chart, datas):
chart = Chart(interpolate='cubic')
chart = make_data(chart, datas)
assert chart.render()
def test_hermite_finite(Chart, datas):
"""Test hermite finite difference interpolation"""
chart = Chart(interpolate="hermite", interpolation_parameters={"type": "finite_difference"})
chart = make_data(chart, datas)
assert chart.render()
