test: reproduce 4d singleton issue

oesteban · oesteban · commit 431f2f2a3237 · 2025-08-14T10:42:38.000+02:00
diff --git a/nitransforms/tests/test_resampling.py b/nitransforms/tests/test_resampling.py
@@ -51,6 +51,15 @@
 }
 
 
+@pytest.mark.xfail(strict=True, reason="Issue #270: fails on 4D images with singleton time dimension")
+def test_apply_singleton_time_dimension():
+    """Resampling fails when the input image has a trailing singleton dimension."""
+    data = np.reshape(np.arange(27, dtype=np.uint8), (3, 3, 3, 1))
+    nii = nb.Nifti1Image(data, np.eye(4))
+    xfm = nitl.Affine(np.eye(4), reference=nii)
+    apply(xfm, nii)
+
+
 @pytest.mark.parametrize(
     "image_orientation",
     [

Original file line number	Diff line number	Diff line change
`@@ -51,6 +51,15 @@`
`51`	`51`	`}`
`52`	`52`
`53`	`53`
	`54`	`+@pytest.mark.xfail(strict=True, reason="Issue #270: fails on 4D images with singleton time dimension")`
	`55`	`+def test_apply_singleton_time_dimension():`
	`56`	`+ """Resampling fails when the input image has a trailing singleton dimension."""`
	`57`	`+ data = np.reshape(np.arange(27, dtype=np.uint8), (3, 3, 3, 1))`
	`58`	`+ nii = nb.Nifti1Image(data, np.eye(4))`
	`59`	`+ xfm = nitl.Affine(np.eye(4), reference=nii)`
	`60`	`+ apply(xfm, nii)`
	`61`	`+`
	`62`	`+`
`54`	`63`	`@pytest.mark.parametrize(`
`55`	`64`	`"image_orientation",`
`56`	`65`	`[`