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TST: simplify mask in pcolor writing to mask test #26273

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Jul 7, 2023
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TST: simplify mask in pcolor writing to mask test #26273

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8 changes: 4 additions & 4 deletions lib/matplotlib/tests/test_axes.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1507,16 +1507,16 @@ def test_pcolorargs_with_read_only():
y = np.linspace(0, 1, 10)
X, Y = np.meshgrid(x, y)
Z = np.sin(2 * np.pi * X) * np.cos(2 * np.pi * Y)
mask = np.broadcast_to([True, False] * 5, Z.shape)
mask = np.zeros(10, dtype=bool)
mask[-1] = True
mask = np.broadcast_to(mask, Z.shape)
assert mask.flags.writeable is False
masked_Z = np.ma.array(Z, mask=mask)
plt.pcolormesh(X, Y, masked_Z)

masked_X = np.ma.array(X, mask=mask)
masked_Y = np.ma.array(Y, mask=mask)
with pytest.warns(UserWarning,
match='are not monotonically increasing or decreasing'):
plt.pcolor(masked_X, masked_Y, masked_Z)
plt.pcolor(masked_X, masked_Y, masked_Z)


@check_figures_equal(extensions=["png"])
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