1 files changed, 41 insertions, 0 deletions
diff --git a/share/extensions/tests/test_inkex_extensions_GenerateExtension.py b/share/extensions/tests/test_inkex_extensions_GenerateExtension.py
new file mode 100644
index 0000000..9c125dd
--- /dev/null
+++ b/share/extensions/tests/test_inkex_extensions_GenerateExtension.py
@@ -0,0 +1,41 @@
+# coding=utf-8
+"""
+Test the inkex.GenerateExtension class.
+"""
+import inkex
+from inkex.tester import TestCase
+
+
+class MyGenerateExtension(inkex.GenerateExtension):
+    TEST_ITEM_ATTRIBS = {
+        "transform": "rotate(123)",
+        "d": "M3,4L5,6",
+        "id": "yielded_test_item",
+    }
+
+    def generate(self):
+        yield inkex.PathElement(**self.TEST_ITEM_ATTRIBS)
+
+
+class TestExtensionGenerate(TestCase):
+    effect_class = MyGenerateExtension
+
+    def test_layer_transform(self):
+        effect = self.assertEffect("svg", "transformed-layer.svg")
+        item = effect.svg.getElementById(MyGenerateExtension.TEST_ITEM_ATTRIBS["id"])
+        parent = item.getparent()
+
+        # expect that generated items have not been modified
+        for key, value in MyGenerateExtension.TEST_ITEM_ATTRIBS.items():
+            self.assertEqual(item.get(key), value)
+
+        # expect a new parent group which is a child of the current layer
+        self.assertEqual(parent.getparent().get("id"), "inner_layer")
+
+        # expect that the parent group compensates the transform of the current
+        # layer and is positioned at the current view center
+        self.assertTransformEqual(
+            parent.get("transform"),
+            "scale(0.5) translate(-20,-30) rotate(-30) translate(100,300)",
+            3,
+        )