Add differential pairs (#900)

* Added set_differential_pair to hfss

* black checking

* added set_differential_pairs in 3dLayout
added load_diff_pairs_from_file in 3dlayout

* added save_diff_pairs_to_file in 3dLayout

* Added Circuit differential pairs
Added HFSS unit tests

* Added 3dlayout unit tests

* fixed bug and completed unit tests

* fixed unit test for ironpython

* optimized close_design.
fixed and improved unit test tear down

* optimized and fixed conftest.py
unit test now consistently use the BasisTest class

* black checking

* style check on test_40_3dlayout_edb.py

* restored run_unittests.py filter

* fixing in multiparts.py for ironpython

* style check

* Test Massimo

* replaced corrupted Cassegrain.aedt unit test project

* replaced corrupted Cassegrain.aedt unit test project

* fixes in unit test

* fixes in unit test

* fixes in unit test

* code clean up

* black check

* fix to UT

* fix to UT

* fixed line ending management in git repo

* fix in hfss3dlayout.py

* trying to fix SBR unit test

* updated examples version

* fix to UT

* fix to UT

* fix to UT

* fix to UT

* testing fix to UT

* testing fix to UT

* fix to UT

* fix to UT

* fix to UT

* fix to UT

* testing fix to UT

* trigger CI

Co-authored-by: maxcapodi78 <Shark78>

Author: Alberto-DM

.gitattributes

@@ -40,9 +40,9 @@
 #
 # image files are treated as binary by default.
 ###############################################################################
-#*.jpg   binary
-#*.png   binary
-#*.gif   binary
+*.jpg   binary
+*.png   binary
+*.gif   binary
 
 ###############################################################################
 # diff behavior for common document formats
@@ -61,3 +61,19 @@
 #*.PDF   diff=astextplain
 #*.rtf   diff=astextplain
 #*.RTF   diff=astextplain
+
+###############################################################################
+# behavior for Ansys files
+#
+# Ansys files are treated as binary by default.
+###############################################################################
+*.aedt   binary
+*.aedtz   binary
+edb.def   binary
+*.a3dcomp   binary
+*.emn   binary
+*.emp   binary
+*.acf   text eol=lf
+*.dat   text eol=lf
+*.stp   binary
+*.step  binary

_unittest/conftest.py

@@ -43,7 +43,6 @@
 
 # Import required modules
 from pyaedt import Hfss
-from pyaedt.application.Design import DesignCache
 from pyaedt.generic.filesystem import Scratch
 
 test_project_name = "test_primitives"
@@ -79,8 +78,8 @@
     }
 
 
-class BasisTest:
-    def setup_class(self, project_name=None, design_name=None, solution_type=None, application=None):
+class BasisTest(object):
+    def my_setup(self, project_name=None, design_name=None, solution_type=None, application=None):
 
         with Scratch(scratch_path) as self.local_scratch:
             if project_name:
@@ -101,24 +100,28 @@ def setup_class(self, project_name=None, design_name=None, solution_type=None, a
                 specified_version=desktop_version,
             )
             self.project_name = self.aedtapp.project_name
-            self.cache = DesignCache(self.aedtapp)
 
-    def teardown_class(self):
+    def my_teardown(self):
         self.aedtapp._desktop.ClearMessages("", "", 3)
-        if self.project_name in self.aedtapp.project_list:
-            self.aedtapp.close_project(name=self.project_name, saveproject=False)
-        self.local_scratch.remove()
-        gc.collect()
+        list_of_projects = list(self.aedtapp._desktop.GetProjectList())
+        for project in list_of_projects:
+            try:
+                self.aedtapp._desktop.CloseProject(project)
+            except:  # pragma: no cover
+                pass
+        del self.aedtapp
 
     def teardown(self):
         """
         Could be redefined
         """
+        pass
 
     def setup(self):
         """
         Could be redefined
         """
+        pass
 
 
 # Define desktopVersion explicitly since this is imported by other modules