X-Git-Url: https://git.madduck.net/etc/vim.git/blobdiff_plain/3083f4470bba6838d0ad59e9748f45a7621623b5..dc90d4951f66ac665582159537b902017d9a0361:/tests/test_black.py

diff --git a/tests/test_black.py b/tests/test_black.py
index 468f00f..8726cc1 100644
--- a/tests/test_black.py
+++ b/tests/test_black.py
@@ -810,6 +810,14 @@ class BlackTestCase(BlackBaseTestCase):
         self.assertEqual(black.get_features_used(node), {Feature.POS_ONLY_ARGUMENTS})
         node = black.lib2to3_parse("def fn(a, /, b): ...")
         self.assertEqual(black.get_features_used(node), {Feature.POS_ONLY_ARGUMENTS})
+        node = black.lib2to3_parse("def fn(): yield a, b")
+        self.assertEqual(black.get_features_used(node), set())
+        node = black.lib2to3_parse("def fn(): return a, b")
+        self.assertEqual(black.get_features_used(node), set())
+        node = black.lib2to3_parse("def fn(): yield *b, c")
+        self.assertEqual(black.get_features_used(node), {Feature.UNPACKING_ON_FLOW})
+        node = black.lib2to3_parse("def fn(): return a, *b, c")
+        self.assertEqual(black.get_features_used(node), {Feature.UNPACKING_ON_FLOW})
 
     def test_get_features_used_for_future_flags(self) -> None:
         for src, features in [
@@ -1584,6 +1592,16 @@ class BlackTestCase(BlackBaseTestCase):
 
         exc_info.match("Cannot parse: 2:0: EOF in multi-line statement")
 
+    def test_equivalency_ast_parse_failure_includes_error(self) -> None:
+        with pytest.raises(AssertionError) as err:
+            black.assert_equivalent("a«»a  = 1", "a«»a  = 1")
+
+        err.match("--safe")
+        # Unfortunately the SyntaxError message has changed in newer versions so we
+        # can't match it directly.
+        err.match("invalid character")
+        err.match(r"\(<unknown>, line 1\)")
+
 
 class TestCaching:
     def test_cache_broken_file(self) -> None: