test: test_pep380.py: Update to pass on MicroPython.

Various corner cases are not supported.

test/test_pep380.py

@@ -11,7 +11,7 @@ import unittest
 import io
 import sys
 import inspect
-import parser
+#import parser
 
 from test.support import captured_stderr, disable_gc, gc_collect
 
@@ -288,7 +288,8 @@ class TestPEP380Operation(unittest.TestCase):
             g.close()
         except ValueError as e:
             self.assertEqual(e.args[0], "nybbles have exploded with delight")
-            self.assertIsInstance(e.__context__, GeneratorExit)
+# MicroPython doesn't support nested exceptions
+#            self.assertIsInstance(e.__context__, GeneratorExit)
         else:
             self.fail("subgenerator failed to raise ValueError")
         self.assertEqual(trace,[
@@ -352,15 +353,16 @@ class TestPEP380Operation(unittest.TestCase):
         pex(e)
         e = StopIteration("spam")
         pex(e)
-        e.value = "eggs"
+# MicroPython doesn't support assignment to .value
-        pex(e)
+#        e.value = "eggs"
+#        pex(e)
         self.assertEqual(trace,[
             "StopIteration: ",
             "value = None",
             "StopIteration: spam",
             "value = spam",
-            "StopIteration: spam",
+#            "StopIteration: spam",
-            "value = eggs",
+#            "value = eggs",
         ])
 
 
@@ -554,11 +556,13 @@ class TestPEP380Operation(unittest.TestCase):
             self.assertEqual(next(gi), 1)
             gi.throw(AttributeError)
 
-        with captured_stderr() as output:
+# In MicroPython, exceptions is .close() are not ignored/printed to sys.stderr,
-            gi = g()
+# but propagated as usual.
-            self.assertEqual(next(gi), 1)
+#        with captured_stderr() as output:
-            gi.close()
+#            gi = g()
-        self.assertIn('ZeroDivisionError', output.getvalue())
+#            self.assertEqual(next(gi), 1)
+#            gi.close()
+#        self.assertIn('ZeroDivisionError', output.getvalue())
 
     def test_exception_in_initial_next_call(self):
         """
@@ -579,6 +583,7 @@ class TestPEP380Operation(unittest.TestCase):
             "g1 about to yield from g2"
         ])
 
+    @unittest.skip("MicroPython doesn't check for already active generator when resuming it")
     def test_attempted_yield_from_loop(self):
         """
         Test attempted yield-from loop
@@ -834,7 +839,7 @@ class TestPEP380Operation(unittest.TestCase):
             gi.throw(GeneratorExit)
         except ValueError as e:
             self.assertEqual(e.args[0], "Vorpal bunny encountered")
-            self.assertIsInstance(e.__context__, GeneratorExit)
+#            self.assertIsInstance(e.__context__, GeneratorExit)
         else:
             self.fail("subgenerator failed to raise ValueError")
         self.assertEqual(trace,[
@@ -847,6 +852,7 @@ class TestPEP380Operation(unittest.TestCase):
             yield from ()
         self.assertRaises(StopIteration, next, g())
 
+    @unittest.skip("MicroPython doesn't check for already active generator when resuming it")
     def test_delegating_generators_claim_to_be_running(self):
         # Check with basic iteration
         def one():
@@ -919,6 +925,7 @@ class TestPEP380Operation(unittest.TestCase):
         next(g1)
         g1.close()
 
+    @unittest.skip("MicroPython doesn't support inspect.stack()")
     def test_delegator_is_visible_to_debugger(self):
         def call_stack():
             return [f[3] for f in inspect.stack()]