Change how ModelicaPaths are built so they also work on Windows compu…

…ters (#590)

* enforce modelica-style paths in ModelicaPath resources_relative_dir property

* enforce modelica-style paths in the rest of the ModelicaPath class

* fix utils test to match new ModelicaPath output

geojson_modelica_translator/utils.py

@@ -83,7 +83,7 @@ def files_dir(self):
         if self.root_dir is None:
             return self.files_relative_dir
         else:
-            return os.path.join(self.root_dir, self.name)
+            return f"{self.root_dir}/{self.name}"
 
     @property
     def resources_relative_dir(self):
@@ -93,7 +93,7 @@ def resources_relative_dir(self):
 
         :return: string, relative resource's data path
         """
-        return os.path.join("Resources", "Data", self.name)
+        return f"Resources/Data/{self.name}"
 
     @property
     def scripts_relative_dir(self, platform='Dymola'):
@@ -102,7 +102,7 @@ def scripts_relative_dir(self, platform='Dymola'):
 
         :return: string, relative scripts path
         """
-        return os.path.join("Resources", "Scripts", self.name, platform)
+        return f"Resources/Scripts/{self.name}/{platform}"
 
     @property
     def files_relative_dir(self):
@@ -120,7 +120,7 @@ def resources_dir(self):
         if self.root_dir is None:
             return self.resources_relative_dir
         else:
-            return os.path.join(self.root_dir, self.resources_relative_dir)
+            return f"{self.root_dir}/{self.resources_relative_dir}"
 
     @property
     def scripts_dir(self):
@@ -133,7 +133,7 @@ def scripts_dir(self):
         if self.root_dir is None:
             return self.scripts_relative_dir
         else:
-            return os.path.join(self.root_dir, self.scripts_relative_dir)
+            return f"{self.root_dir}/{self.scripts_relative_dir}"
 
 
 # This is used for some test cases where we need deterministic IDs to be generated

tests/geojson_modelica_translator/test_utils.py

@@ -14,7 +14,7 @@ def setUp(self):
     def test_properties(self):
         mp = ModelicaPath("Loads", root_dir=None)
         self.assertEqual(mp.files_dir, "Loads")
-        self.assertEqual(mp.resources_dir, os.path.join("Resources", "Data", "Loads"))
+        self.assertEqual(mp.resources_dir, "Resources/Data/Loads")
 
     def test_single_sub_resource(self):
         root_dir = os.path.join(self.output_dir, "modelica_path_01")