1 files changed, 67 insertions, 0 deletions
diff --git a/tests/test_scene.py b/tests/test_scene.py
index 0e52216..13b80bb 100644
--- a/tests/test_scene.py
+++ b/tests/test_scene.py
@@ -123,3 +123,70 @@ class SceneTest(unittest.TestCase):
                                       "rotation": [{"id": "x", "current_value": 30}]}]
         _, err = load_quiet(self.duf({"nodes": nodes}))
         self.assertIn("pose", err)
+
+    def root(self, rel, doc):
+        """Extra library root holding one hand-written file."""
+        root = self.dir / "extra"
+        p = root / rel
+        p.parent.mkdir(parents=True, exist_ok=True)
+        p.write_text(json.dumps(doc))
+        return root
+
+    def morph_doc(self, *mods):
+        return {"modifier_library": list(mods)}
+
+    def mod(self, ident, morph=None):
+        m = {"id": ident, "parent": "/data/Test/Fig/Fig.dsf#Fig",
+             "channel": {"id": "value", "value": 0}}
+        if morph:
+            m["morph"] = morph
+        return m
+
+    MORPHS = "data/Test/Fig/Morphs/Test/"
+
+    def test_file_loaded_once(self):
+        scene, _ = load_quiet(self.duf({"nodes": self.base_nodes(), "animations": [
+            {"url": "Fig:/data/Test/Fig/Morphs/Test/Tall.dsf#Tall?value", "keys": [[0, 1]]}],
+            "modifiers": [{"id": "Typo", "url": "/data/Test/Fig/Morphs/Test/Tall.dsf#Typo",
+                           "parent": "#Fig", "channel": {"id": "value", "current_value": 0}}]}))
+        self.assertEqual(len(scene.graph.formulas["hip:hip?center_point/y"]), 1)
+        self.assertEqual(scene.graph.evaluate()["hip:hip?center_point/y"], 7)
+
+    def test_malformed_morph_file_is_fatal(self):
+        root = self.root(self.MORPHS + "NoId.dsf", {"modifier_library": [{"channel": {"value": 0}}]})
+        with self.assertRaisesRegex(Error, "NoId.dsf: malformed morph data"):
+            load_quiet(DATA / "scene.duf", [root])
+
+    def test_bad_deltas_fatal(self):
+        root = self.root(self.MORPHS + "BadDelta.dsf", self.morph_doc(
+            self.mod("BadDelta", {"vertex_count": 3, "deltas": {"values": [[7, 1, 1, 1]]}})))
+        with self.assertRaisesRegex(Error, "bad morph deltas"):
+            load_quiet(DATA / "scene.duf", [root])
+
+    def test_malformed_scene_data(self):
+        for scene in ({"nodes": self.base_nodes(), "animations": [
+                {"url": "Fig:#Tall?value", "keys": []}]}, {"nodes": None}):
+            with self.assertRaisesRegex(Error, "malformed scene data"):
+                load_quiet(self.duf(scene))
+
+    def test_dial_not_a_number(self):
+        with self.assertRaisesRegex(Error, "dial value is not a number"):
+            load_quiet(self.duf({"nodes": self.base_nodes(), "modifiers": [
+                {"id": "Tall", "url": "/data/Test/Fig/Morphs/Test/Tall.dsf#Tall",
+                 "parent": "#Fig", "channel": {"id": "value", "current_value": "a"}}]}))
+
+    def test_hd_warning_once(self):
+        hd = {"vertex_count": 3, "hd_url": "x", "deltas": {"values": [[0, 1, 0, 0]]}}
+        root = self.root(self.MORPHS + "Hd.dsf", self.morph_doc(
+            self.mod("Hd1", hd), self.mod("Hd2", hd)))
+        _, err = load_quiet(DATA / "scene.duf", [root])
+        self.assertEqual(err.count("2 HD morphs"), 1)
+
+    def test_on_demand_morph_outside_morphs_dir(self):
+        root = self.root("data/Test/Extra/Bulk.dsf", self.morph_doc(
+            self.mod("Bulk", {"vertex_count": 3, "deltas": {"values": [[2, 0, 0, 1]]}})))
+        scene, _ = load_quiet(self.duf({"nodes": self.base_nodes(), "modifiers": [
+            {"id": "Bulk", "url": "/data/Test/Extra/Bulk.dsf#Bulk", "parent": "#Fig",
+             "channel": {"id": "value", "current_value": 1}}]}), [root])
+        self.assertIn("Fig:Bulk?value", scene.figure.morphs)
+        self.assertEqual(scene.graph.props["Fig:Bulk?value"].value, 1)