157 lines
4.8 KiB
Python
157 lines
4.8 KiB
Python
import numpy as np
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import pytest
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import matplotlib.pyplot as plt
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from matplotlib.spines import Spines
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from matplotlib.testing.decorators import check_figures_equal, image_comparison
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def test_spine_class():
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"""Test Spines and SpinesProxy in isolation."""
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class SpineMock:
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def __init__(self):
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self.val = None
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def set(self, **kwargs):
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vars(self).update(kwargs)
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def set_val(self, val):
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self.val = val
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spines_dict = {
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'left': SpineMock(),
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'right': SpineMock(),
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'top': SpineMock(),
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'bottom': SpineMock(),
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}
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spines = Spines(**spines_dict)
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assert spines['left'] is spines_dict['left']
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assert spines.left is spines_dict['left']
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spines[['left', 'right']].set_val('x')
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assert spines.left.val == 'x'
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assert spines.right.val == 'x'
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assert spines.top.val is None
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assert spines.bottom.val is None
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spines[:].set_val('y')
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assert all(spine.val == 'y' for spine in spines.values())
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spines[:].set(foo='bar')
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assert all(spine.foo == 'bar' for spine in spines.values())
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with pytest.raises(AttributeError, match='foo'):
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spines.foo
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with pytest.raises(KeyError, match='foo'):
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spines['foo']
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with pytest.raises(KeyError, match='foo, bar'):
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spines[['left', 'foo', 'right', 'bar']]
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with pytest.raises(ValueError, match='single list'):
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spines['left', 'right']
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with pytest.raises(ValueError, match='Spines does not support slicing'):
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spines['left':'right']
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with pytest.raises(ValueError, match='Spines does not support slicing'):
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spines['top':]
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@image_comparison(['spines_axes_positions'])
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def test_spines_axes_positions():
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# SF bug 2852168
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fig = plt.figure()
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x = np.linspace(0, 2*np.pi, 100)
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y = 2*np.sin(x)
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ax = fig.add_subplot(1, 1, 1)
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ax.set_title('centered spines')
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ax.plot(x, y)
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ax.spines.right.set_position(('axes', 0.1))
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ax.yaxis.set_ticks_position('right')
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ax.spines.top.set_position(('axes', 0.25))
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ax.xaxis.set_ticks_position('top')
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ax.spines.left.set_color('none')
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ax.spines.bottom.set_color('none')
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@image_comparison(['spines_data_positions'])
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def test_spines_data_positions():
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fig, ax = plt.subplots()
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ax.spines.left.set_position(('data', -1.5))
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ax.spines.top.set_position(('data', 0.5))
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ax.spines.right.set_position(('data', -0.5))
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ax.spines.bottom.set_position('zero')
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ax.set_xlim([-2, 2])
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ax.set_ylim([-2, 2])
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@check_figures_equal(extensions=["png"])
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def test_spine_nonlinear_data_positions(fig_test, fig_ref):
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plt.style.use("default")
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ax = fig_test.add_subplot()
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ax.set(xscale="log", xlim=(.1, 1))
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# Use position="data" to visually swap the left and right spines, using
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# linewidth to distinguish them. The calls to tick_params removes labels
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# (for image comparison purposes) and harmonizes tick positions with the
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# reference).
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ax.spines.left.set_position(("data", 1))
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ax.spines.left.set_linewidth(2)
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ax.spines.right.set_position(("data", .1))
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ax.tick_params(axis="y", labelleft=False, direction="in")
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ax = fig_ref.add_subplot()
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ax.set(xscale="log", xlim=(.1, 1))
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ax.spines.right.set_linewidth(2)
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ax.tick_params(axis="y", labelleft=False, left=False, right=True)
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@image_comparison(['spines_capstyle'])
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def test_spines_capstyle():
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# issue 2542
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plt.rc('axes', linewidth=20)
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fig, ax = plt.subplots()
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ax.set_xticks([])
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ax.set_yticks([])
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def test_label_without_ticks():
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fig, ax = plt.subplots()
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plt.subplots_adjust(left=0.3, bottom=0.3)
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ax.plot(np.arange(10))
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ax.yaxis.set_ticks_position('left')
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ax.spines.left.set_position(('outward', 30))
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ax.spines.right.set_visible(False)
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ax.set_ylabel('y label')
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ax.xaxis.set_ticks_position('bottom')
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ax.spines.bottom.set_position(('outward', 30))
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ax.spines.top.set_visible(False)
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ax.set_xlabel('x label')
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ax.xaxis.set_ticks([])
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ax.yaxis.set_ticks([])
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plt.draw()
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spine = ax.spines.left
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spinebbox = spine.get_transform().transform_path(
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spine.get_path()).get_extents()
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assert ax.yaxis.label.get_position()[0] < spinebbox.xmin, \
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"Y-Axis label not left of the spine"
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spine = ax.spines.bottom
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spinebbox = spine.get_transform().transform_path(
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spine.get_path()).get_extents()
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assert ax.xaxis.label.get_position()[1] < spinebbox.ymin, \
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"X-Axis label not below the spine"
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@image_comparison(['black_axes'])
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def test_spines_black_axes():
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# GitHub #18804
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plt.rcParams["savefig.pad_inches"] = 0
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plt.rcParams["savefig.bbox"] = 'tight'
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fig = plt.figure(0, figsize=(4, 4))
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ax = fig.add_axes((0, 0, 1, 1))
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ax.set_xticklabels([])
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ax.set_yticklabels([])
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ax.set_xticks([])
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ax.set_yticks([])
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ax.set_facecolor((0, 0, 0))
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