tests/run-tests: Allow to skip tests using async/await keywords.

tests/feature_check/async_check.py

@@ -0,0 +1,3 @@
+# check if async/await keywords are supported
+async def foo():
+    await 1

tests/run-tests

@@ -199,6 +199,7 @@ def run_tests(pyb, tests, args):
     skip_tests = set()
     skip_native = False
     skip_set_type = False
+    skip_async = False
 
     # Check if micropython.native is supported, and skip such tests if it's not
     native = run_micropython(pyb, args, 'feature_check/native_check.py')
@@ -210,6 +211,11 @@ def run_tests(pyb, tests, args):
     if native == b'CRASH':
         skip_set_type = True
 
+    # Check if async/await keywords are supported, and skip such tests if it's not
+    native = run_micropython(pyb, args, 'feature_check/async_check.py')
+    if native == b'CRASH':
+        skip_async = True
+
     # Check if emacs repl is supported, and skip such tests if it's not
     t = run_micropython(pyb, args, 'feature_check/repl_emacs_check.py')
     if not 'True' in str(t, 'ascii'):
@@ -314,11 +320,13 @@ def run_tests(pyb, tests, args):
         is_native = test_name.startswith("native_") or test_name.startswith("viper_")
         is_endian = test_name.endswith("_endian")
         is_set_type = test_name.startswith("set_") or test_name.startswith("frozenset")
+        is_async = test_name.startswith("async_")
 
         skip_it = test_file in skip_tests
         skip_it |= skip_native and is_native
         skip_it |= skip_endian and is_endian
         skip_it |= skip_set_type and is_set_type
+        skip_it |= skip_async and is_async
 
         if skip_it:
             print("skip ", test_file)