diff --git a/rhodecode/tests/vcs/test_commits.py b/rhodecode/tests/vcs/test_commits.py
--- a/rhodecode/tests/vcs/test_commits.py
+++ b/rhodecode/tests/vcs/test_commits.py
@@ -88,26 +88,32 @@ class TestCommitsInNonEmptyRepo(BackendT
     @pytest.mark.backends("git", "hg")
     def test_new_head_in_default_branch(self):
         tip = self.repo.get_commit()
-        self.imc.add(FileNode(b'docs/index.txt', content=b'Documentation\n'))
+
+        self.imc.add(
+            FileNode(b"docs/index.txt", content=b"Documentation\n")
+        )
         foobar_tip = self.imc.commit(
-            message='New branch: foobar',
-            author='joe <joe@rhodecode.com>',
-            branch='foobar',
+            message="New branch: foobar",
+            author="joe <joe@rhodecode.com>",
+            branch="foobar",
             parents=[tip],
         )
-        self.imc.change(FileNode(b'docs/index.txt', content=b'Documentation\nand more...\n'))
+        self.imc.change(
+            FileNode(b"docs/index.txt", content=b"Documentation\nand more...\n")
+        )
+        assert foobar_tip.branch == "foobar"
         newtip = self.imc.commit(
-            message='At default branch',
-            author='joe <joe@rhodecode.com>',
+            message="At foobar_tip branch",
+            author="joe <joe@rhodecode.com>",
             branch=foobar_tip.branch,
             parents=[foobar_tip],
         )
 
         newest_tip = self.imc.commit(
-            message='Merged with %s' % foobar_tip.raw_id,
-            author='joe <joe@rhodecode.com>',
+            message=f"Merged with {foobar_tip.raw_id}",
+            author="joe <joe@rhodecode.com>",
             branch=self.backend_class.DEFAULT_BRANCH_NAME,
-            parents=[newtip, foobar_tip],
+            parents=[tip, newtip],
         )
 
         assert newest_tip.branch == self.backend_class.DEFAULT_BRANCH_NAME