update test case

tests/python/unittest/test_infer_shape.py

@@ -235,10 +235,16 @@ def test_where_partial_shape():
     y = mx.sym.Variable("y")
     cond = mx.sym.Variable("cond")
     where_op = mx.sym.where(cond, x, y)
-    where_op.infer_shape_partial(cond=(0, 2), x=(0, 2), y =(0, 2))
+    # condition must be fully known to infer shape
+    _, result, _ = where_op.infer_shape_partial(cond=(0, 2), x=(0, 2), y =(0, 2))
+    assert result == [()]
+    _, result, _ = where_op.infer_shape_partial(cond=(0,), x=(2, 2), y =(2, 2))
+    assert result == [()]
     with mx.np_compat(True):
-        where_op.infer_shape_partial(cond=(-1, 2), x=(-1, 2), y =(-1, 2))
-
+        _, result, _ =  where_op.infer_shape_partial(cond=(-1, 2), x=(-1, 2), y =(-1, 2))
+        assert result == [None]
+        _, result, _ = where_op.infer_shape_partial(cond=(-1,), x=(2, 2), y=(2, 2))
+        assert result == [None]
 
 if __name__ == "__main__":
     import nose