Add testcases to cover design validation errors

tests/lib/base_testcase.py

@@ -52,7 +52,7 @@ class BaseTestCase(unittest.TestCase):
     @property
     def rerun(self) -> bool:
         """
-        Re-run wothout deleting and re-generating prior output directory.
+        Re-run without deleting and re-generating prior output directory.
         """
         return self.request.config.getoption("--rerun")
 
@@ -79,14 +79,14 @@ class BaseTestCase(unittest.TestCase):
                 f.write(f"{k}: {repr(v)}\n")
 
 
-    def _export_regblock(self):
+    def export_regblock(self):
         """
         Call the peakrdl_regblock exporter to generate the DUT
         """
         this_dir = self.get_testcase_dir()
 
         if self.rdl_file:
-            rdl_file = self.rdl_file
+            rdl_file = os.path.join(this_dir, self.rdl_file)
         else:
             # Find any *.rdl file in testcase dir
             rdl_file = glob.glob(os.path.join(this_dir, "*.rdl"))[0]
@@ -120,17 +120,21 @@ class BaseTestCase(unittest.TestCase):
             default_reset_async=self.default_reset_async,
         )
 
+    def delete_run_dir(self) -> None:
+        run_dir = self.get_run_dir()
+        if os.path.exists(run_dir):
+            shutil.rmtree(run_dir)
+
     def setUp(self) -> None:
         if self.rerun:
             return
 
         # Create fresh build dir
         run_dir = self.get_run_dir()
-        if os.path.exists(run_dir):
-            shutil.rmtree(run_dir)
+        self.delete_run_dir()
         pathlib.Path(run_dir).mkdir(parents=True, exist_ok=True)
 
         self._write_params()
 
         # Convert testcase RDL file --> SV
-        self._export_regblock()
+        self.export_regblock()