Add integration test for basedir module loading failures

src/radish/__main__.py

@@ -284,7 +284,17 @@ def cli(**kwargs):
             sys.exit(1)
 
     logger.debug("Loading all modules from the basedirs")
-    loaded_modules = loader.load_modules(config.basedirs)
+    try:
+        loaded_modules = loader.load_modules(config.basedirs)
+    except Exception as exc:
+        print("", flush=True)
+        print("An error occured while loading modules from the basedirs:", flush=True)
+        print(exc, flush=True)
+        if config.with_traceback:
+            print("", flush=True)
+            traceback.print_exc()
+        sys.exit(1)
+
     logger.debug(
         "Loaded %d modules from the basedirs: %s",
         len(loaded_modules),

tests/integration/features/Error-Reporting.feature

@@ -37,3 +37,29 @@ Feature: Hook Error Reporting
             An error occured while running the Feature Files:
             The '@before.each_feature' Hook 'before_each_feature' raised an RuntimeError: some runtime Error occurred
             """
+
+    Scenario: Error Reporting on Exceptions raised during Module import
+        Given the Feature File "error-reporting.feature"
+            """
+            Feature: Some Feature
+
+                Scenario: Some Scenario
+                    Given some Step
+            """
+        And the base dir module "steps.py"
+            """
+            from radish import given, before
+
+            def some_func():
+                raise RuntimeError("some runtime Error occurred")
+
+            some_func()
+            """
+        When the "error-reporting.feature" is run
+        Then the exit code should be 1
+        And the output to match:
+            """
+
+            An error occured while loading modules from the basedirs:
+            Unable to import module 'steps' from '(.*?)/steps.py': some runtime Error occurred
+            """