diff --git a/scripts/test/shared.py b/scripts/test/shared.py
index 441545db308..8fdf2375cf8 100644
--- a/scripts/test/shared.py
+++ b/scripts/test/shared.py
@@ -386,6 +386,7 @@ def get_tests(test_dir, extensions=[], recursive=False):
         tests += glob.glob(os.path.join(test_dir, star + ext), recursive=True)
     if options.test_name_filter:
         tests = fnmatch.filter(tests, options.test_name_filter)
+    tests = [item for item in tests if os.path.isfile(item)]
     return sorted(tests)
 
 
diff --git a/scripts/test/wasm2js.py b/scripts/test/wasm2js.py
index ea299e4ed78..374e932978f 100644
--- a/scripts/test/wasm2js.py
+++ b/scripts/test/wasm2js.py
@@ -41,6 +41,8 @@ def check_for_stale_files():
 
     all_files = os.listdir(shared.get_test_dir('wasm2js'))
     for f in all_files:
+        if f in assert_tests:
+            continue
         prefix = f.split('.')[0]
         if prefix not in all_tests:
             shared.fail_with_error('orphan test output: %s' % f)