From 0f80ff7285630c06b48db622c39eb2a640e82f91 Mon Sep 17 00:00:00 2001
From: Milan Rother <milan.rother@gmx.de>
Date: Thu, 5 Nov 2026 13:37:34 +0100
Subject: [PATCH 1/2] Add block icons

---
 src/pathsim_fmi/icons/CoSimulationFMU.svg  |  1 +
 src/pathsim_fmi/icons/ModelExchangeFMU.svg |  1 +
 tests/test_icons.py                        | 29 ++++++++++++++++++++++
 3 files changed, 31 insertions(+)
 create mode 100644 src/pathsim_fmi/icons/CoSimulationFMU.svg
 create mode 100644 src/pathsim_fmi/icons/ModelExchangeFMU.svg
 create mode 100644 tests/test_icons.py

diff --git a/src/pathsim_fmi/icons/CoSimulationFMU.svg b/src/pathsim_fmi/icons/CoSimulationFMU.svg
new file mode 100644
index 0000000..4926e1c
--- /dev/null
+++ b/src/pathsim_fmi/icons/CoSimulationFMU.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 96 64" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round"><path d="M 48 10 L 70 20 L 70 44 L 48 54 L 26 44 L 26 20 Z"/><path d="M 26 20 L 48 30 L 70 20 M 48 30 V 54"/><path d="M 32 42 V 38 L 38 40.7 V 36.7 L 44 39.4 V 35.4" opacity="0.8"/></svg>
diff --git a/src/pathsim_fmi/icons/ModelExchangeFMU.svg b/src/pathsim_fmi/icons/ModelExchangeFMU.svg
new file mode 100644
index 0000000..8e35224
--- /dev/null
+++ b/src/pathsim_fmi/icons/ModelExchangeFMU.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 96 64" fill="none" stroke="currentColor" stroke-width="1.6" stroke-linecap="round" stroke-linejoin="round"><path d="M 48 10 L 70 20 L 70 44 L 48 54 L 26 44 L 26 20 Z"/><path d="M 26 20 L 48 30 L 70 20 M 48 30 V 54"/><path d="M 31 41 C 35 33 39 45 45 36" opacity="0.8"/></svg>
diff --git a/tests/test_icons.py b/tests/test_icons.py
new file mode 100644
index 0000000..07b2238
--- /dev/null
+++ b/tests/test_icons.py
@@ -0,0 +1,29 @@
+import unittest
+import xml.etree.ElementTree as ET
+
+from pathsim.blocks import Block
+
+import pathsim_fmi
+
+
+class TestIcons(unittest.TestCase):
+    """Every block of the toolbox has an icon, read by Block.icon()."""
+
+    def test_blocks_have_icons(self):
+        blocks = [
+            obj for obj in vars(pathsim_fmi).values()
+            if isinstance(obj, type) and issubclass(obj, Block)
+            and obj.__module__.startswith("pathsim_fmi")
+        ]
+        self.assertGreater(len(blocks), 0)
+
+        for cls in blocks:
+            with self.subTest(block=cls.__name__):
+                icon = cls.icon()
+                self.assertIsNotNone(icon)
+                root = ET.fromstring(icon)
+                self.assertEqual(root.get("viewBox"), "0 0 96 64")
+
+
+if __name__ == "__main__":
+    unittest.main()

From d556b9d00b2e671a0e6db88e9f914d2292cd19f0 Mon Sep 17 00:00:00 2001
From: Milan Rother <milan.rother@gmx.de>
Date: Thu, 5 Nov 2026 13:52:18 +0100
Subject: [PATCH 2/2] Format the icon test

---
 tests/test_icons.py | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tests/test_icons.py b/tests/test_icons.py
index 07b2238..a624083 100644
--- a/tests/test_icons.py
+++ b/tests/test_icons.py
@@ -11,8 +11,10 @@ class TestIcons(unittest.TestCase):
 
     def test_blocks_have_icons(self):
         blocks = [
-            obj for obj in vars(pathsim_fmi).values()
-            if isinstance(obj, type) and issubclass(obj, Block)
+            obj
+            for obj in vars(pathsim_fmi).values()
+            if isinstance(obj, type)
+            and issubclass(obj, Block)
             and obj.__module__.startswith("pathsim_fmi")
         ]
         self.assertGreater(len(blocks), 0)