test inplace Hartley2

test.py

@@ -114,6 +114,9 @@ def test_hartley2_identity(shp):
     v1 = pypocketfft.hartley2(pypocketfft.hartley2(a))/a.size
     vmax = np.max(np.abs(a))
     assert(_l2error(a, v1)<1e-15*vmax)
+    v1 = a.copy()
+    assert (pypocketfft.hartley2(pypocketfft.hartley2(v1, inplace=True), fct=1./a.size, inplace=True) is v1)
+    assert(_l2error(a, v1)<1e-15*vmax)
 
 @pmp("shp", shapes2D)
 @pmp("axes", ((0,),(1,),(0,1),(1,0)))