Add coverage exclusions. Add subprocess coverage.

.coveragerc

@@ -4,6 +4,10 @@ omit =
     */.local/*
     # omit everything in /usr
     /usr/*
+    # ignore the unit tests themselves
+    */tests/*
+    # ignore the debug utilities
+    debug.py
 [paths]
 source =
   /home/gitlab-runner/builds/2fd64746/0
@@ -12,3 +16,13 @@ source =
   /home/gitlab-runner/builds/2fd64746/3
   /home/gitlab-runner/builds/2fd64746/4
   /home/gitlab-runner/builds/2fd64746/5
+[report]
+exclude_lines =
+  pragma: no cover
+  def __repr__
+  except Exception
+  raise AssertionError
+  raise NotImplementedError
+  if 0:
+  if __name__ == "__main__":
+  if not OPTS.is_unit_test

compiler/tests/30_openram_test.py

@@ -42,8 +42,9 @@ class openram_test(openram_test):
 
             
         OPENRAM_HOME = os.path.abspath(os.environ.get("OPENRAM_HOME"))
-
+        # Always perform code coverage
-        cmd = "python3 {0}/openram.py -n -o {1} -p {2} {3} config_20_{4}.py 2>&1 > {5}/output.log".format(OPENRAM_HOME,
+        exe_name = "coverage run -p {0}/openram.py ".format(OPENRAM_HOME)
+        cmd = "{0} -n -o {1} -p {2} {3} config_20_{4}.py 2>&1 > {5}/output.log".format(exe_name,
                                                                                        out_file,
                                                                                        out_path,
                                                                                        verbosity,