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Add dtype/copy args to internal testing class #27862

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Merged
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Mar 7, 2024
Merged

Add dtype/copy args to internal testing class #27862

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12 changes: 10 additions & 2 deletions lib/matplotlib/tests/test_units.py
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Original file line number Diff line number Diff line change
Expand Up @@ -282,8 +282,16 @@ class Kernel:
def __init__(self, array):
self._array = np.asanyarray(array)

def __array__(self):
return self._array
def __array__(self, dtype=None, copy=None):
if dtype is not None and dtype != self._array.dtype:
if copy is not None and not copy:
raise ValueError(
f"Converting array from {self._array.dtype} to "
f"{dtype} requires a copy"
)

arr = np.asarray(self._array, dtype=dtype)
return (arr if not copy else np.copy(arr))

@property
def shape(self):
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