[tests] Add basic tests to load the nodes

Author: cbentejac

tests/__init__.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+# coding:utf-8
+
+""" 
+Tests ensuring that all nodes can be loaded correctly, even if the environment is not correctly setup.
+"""
+
+NODE_TYPES = ["ImageDetectionPrompt", "ImageSegmentationBox", "ImageSegmentationPrompt", "ImageTagsExtraction", "SegmentAnything"]
+
+from os import listdir
+from os.path import basename, splitext, isfile, join
+
+NODE_TYPES = [splitext(basename(f))[0] for f in listdir("../meshroom/nodes/imageSegmentation") if f != "__init__.py"]
+
+import meshroom.core
+
+def test_load_nodes_without_env():
+    meshroom.core.initNodes()
+
+    for type in NODE_TYPES:
+        assert type in meshroom.core.desc