Commented unit tests. Added negative coordinate test on test 03.

compiler/router/router.py

@@ -118,7 +118,7 @@ class router:
         for layer in self.layers:
             self.write_obstacle(self.top_name)
 
-    def clear(self):
+    def clear_pins(self):
         """
         Reset the source and destination pins to start a new routing.
         Convert the source/dest to blockages.

compiler/router/tests/01_no_blockages_test.py

@@ -12,6 +12,9 @@ import calibre
 
 
 class no_blockages_test(unittest.TestCase):
+    """
+    Simplest two pin route test with no blockages.
+    """
 
     def runTest(self):
         globals.init_openram("config_{0}".format(OPTS.tech_name))

compiler/router/tests/02_blockages_test.py

@@ -12,6 +12,9 @@ import calibre
 
 
 class blockages_test(unittest.TestCase):
+    """
+    Simple two pin route test with multilayer blockages.
+    """
 
     def runTest(self):
         globals.init_openram("config_{0}".format(OPTS.tech_name))

compiler/router/tests/03_same_layer_pins_test.py

@@ -12,7 +12,9 @@ import calibre
 
 
 class same_layer_pins_test(unittest.TestCase):
-
+    """
+    Checks two pins on the same layer with positive and negative coordinates.
+    """
     def runTest(self):
         globals.init_openram("config_{0}".format(OPTS.tech_name))
 
@@ -51,7 +53,7 @@ class same_layer_pins_test(unittest.TestCase):
                 layer_stack =("metal1","via1","metal2")
                 r.route(layer_stack,src="A",dest="B")
                 r.add_route(self)
-
+                self.gds_write("temp.gds")
         
         r = routing("test1", "03_same_layer_pins_test")
         self.local_check(r)

compiler/router/tests/04_diff_layer_pins_test.py

@@ -12,6 +12,10 @@ import calibre
 
 
 class diff_layer_pins_test(unittest.TestCase):
+    """
+    Two pin route test with pins on different layers and blockages.
+    Pins are smaller than grid size.
+    """
 
     def runTest(self):
         globals.init_openram("config_{0}".format(OPTS.tech_name))

compiler/router/tests/05_two_nets_test.py

@@ -12,6 +12,10 @@ import calibre
 
 
 class two_nets_test(unittest.TestCase):
+    """
+    Route two nets in the same GDS file. The routes will interact,
+    so they must block eachother.
+    """
 
     def runTest(self):
         globals.init_openram("config_{0}".format(OPTS.tech_name))
@@ -51,7 +55,7 @@ class two_nets_test(unittest.TestCase):
                 layer_stack =("metal1","via1","metal2")
                 r.route(layer_stack,src="A",dest="B")
                 r.add_route(self)
-
+                
                 r.route(layer_stack,src="A",dest="B")
                 r.add_route(self)