Add scalar squeeze tests

1 files changed, 16 insertions, 0 deletions

diff --git a/numpy/core/tests/test_regression.py b/numpy/core/tests/test_regression.py
index f8f75d9ea..ba4413138 100644
--- a/numpy/core/tests/test_regression.py
+++ b/numpy/core/tests/test_regression.py
@@ -2375,3 +2375,19 @@ class TestRegression(object):
             structure = np.array([1], dtype=[(('x', 'X'), np.object_)])
             structure[0]['x'] = np.array([2])
             gc.collect()
+
+    def test_dtype_scalar_squeeze(self):
+        # gh-11384
+        values = {
+            'S': b"a",
+            'M': "2018-06-20",
+        }
+        for ch in np.typecodes['All']:
+            if ch in 'O':
+                continue
+            sctype = np.dtype(ch).type
+            scvalue = sctype(values.get(ch, 3))
+            for axis in [None, ()]:
+                squeezed = scvalue.squeeze(axis=axis)
+                assert_equal(squeezed, scvalue)
+                assert_equal(type(squeezed), type(scvalue))