Test set_array for copy and wrong dtype

Author: aitikgupta

lib/matplotlib/tests/test_collections.py

@@ -677,6 +677,22 @@ def test_collection_set_verts_array():
         assert np.array_equal(ap._codes, atp._codes)
 
 
+def test_collection_set_array():
+    vals = [*range(10)]
+
+    # Test set_array with list
+    c = Collection()
+    c.set_array(vals)
+
+    # Test set_array with wrong dtype
+    with pytest.raises(TypeError, match="^Image data of dtype"):
+        c.set_array("wrong_input")
+
+    # Test if array kwarg is copied
+    vals[5] = 45
+    assert np.not_equal(vals, c.get_array()).any()
+
+
 def test_blended_collection_autolim():
     a = [1, 2, 4]
     height = .2