Test: introduce test for every game has a tutorial (#478)

test/webhost/TestTutorial.py

@@ -0,0 +1,22 @@
+import unittest
+from worlds.AutoWorld import AutoWorldRegister
+
+
+class TestBase(unittest.TestCase):
+    def testCreateItem(self):
+        import WebHost
+        tutorials_data = WebHost.create_ordered_tutorials_file()
+        games_with_tutorial = set(entry["gameTitle"] for entry in tutorials_data)
+        for game_name, world_type in AutoWorldRegister.world_types.items():
+            if not world_type.hidden:
+                with self.subTest(game_name):
+                    try:
+                        self.assertIn(game_name, games_with_tutorial)
+                    except AssertionError:
+                        # look for partial name in the tutorial name
+                        for game in games_with_tutorial:
+                            if game_name in game:
+                                break
+                        else:
+                            self.fail(f"{game_name} has no setup tutorial. "
+                                      f"Games with Tutorial: {games_with_tutorial}")