Fixed database typo and removed unnecessary class identifier.

venv/Lib/site-packages/scipy/fft/tests/test_fft_function.py

@@ -0,0 +1,36 @@
+import pytest
+import numpy as np
+from numpy.testing import assert_allclose
+
+
+def test_fft_function():
+    # Many NumPy symbols are imported into the scipy namespace, including
+    # numpy.fft.fft as scipy.fft, conflicting with this module (gh-10253)
+    np.random.seed(1234)
+
+    # Callable before scipy.fft is imported
+    import scipy
+    x = np.random.randn(10) + 1j * np.random.randn(10)
+    with pytest.deprecated_call(match=r'1\.5\.0'):
+        X = scipy.fft(x)
+    with pytest.deprecated_call(match=r'2\.0\.0'):
+        y = scipy.ifft(X)
+    assert_allclose(y, x)
+
+    # Callable after scipy.fft is imported
+    import scipy.fft
+    assert_allclose(X, scipy.fft.fft(x))
+    with pytest.deprecated_call(match=r'1\.5\.0'):
+        X = scipy.fft(x)
+    assert_allclose(X, scipy.fft.fft(x))
+    with pytest.deprecated_call(match=r'2\.0\.0'):
+        y = scipy.ifft(X)
+    assert_allclose(y, x)
+
+    # Callable when imported using from
+    from scipy import fft
+    with pytest.deprecated_call(match=r'1\.5\.0'):
+        X = fft(x)
+    with pytest.deprecated_call(match=r'2\.0\.0'):
+        y = scipy.ifft(X)
+    assert_allclose(y, x)