Fixed #23302 -- Added --name/-n option to makemigrations command

tests/migrations/test_commands.py

@@ -546,3 +546,34 @@ class MakeMigrationsTests(MigrationTestBase):
             questioner.input = old_input
             if os.path.exists(merge_file):
                 os.remove(merge_file)
+
+    @override_system_checks([])
+    def test_makemigrations_with_custom_name(self):
+        """
+        Makes sure that makemigrations generate a custom migration.
+        """
+        def cmd(migration_count, migration_name, *args):
+            with override_settings(MIGRATION_MODULES={"migrations": self.migration_pkg}):
+                try:
+                    call_command("makemigrations", "migrations", "--verbosity", "0", "--name", migration_name, *args)
+                except CommandError:
+                    self.fail("Makemigrations errored in creating empty migration with custom name for a proper app.")
+            migration_file = os.path.join(self.migration_dir, "%s_%s.py" % (migration_count, migration_name))
+            # Check for existing migration file in migration folder
+            self.assertTrue(os.path.exists(migration_file))
+            with codecs.open(migration_file, "r", encoding="utf-8") as fp:
+                content = fp.read()
+                self.assertTrue("# -*- coding: utf-8 -*-" in content)
+                content = content.replace(" ", "")
+            return content
+
+        # generate an initial migration
+        migration_name_0001 = "my_initial_migration"
+        content = cmd("0001", migration_name_0001)
+        self.assertIn("dependencies=[\n]", content)
+
+        # generate an empty migration
+        migration_name_0002 = "my_custom_migration"
+        content = cmd("0002", migration_name_0002, "--empty")
+        self.assertIn("dependencies=[\n('migrations','0001_%s'),\n]" % migration_name_0001, content)
+        self.assertIn("operations=[\n]", content)