Removed the Requirement to Install Python and NodeJS (Now Bundled with Borealis)

Dependencies/Python/Lib/test/test_json/test_recursion.py

@@ -0,0 +1,107 @@
+from test import support
+from test.test_json import PyTest, CTest
+
+
+class JSONTestObject:
+    pass
+
+
+class TestRecursion:
+    def test_listrecursion(self):
+        x = []
+        x.append(x)
+        try:
+            self.dumps(x)
+        except ValueError:
+            pass
+        else:
+            self.fail("didn't raise ValueError on list recursion")
+        x = []
+        y = [x]
+        x.append(y)
+        try:
+            self.dumps(x)
+        except ValueError:
+            pass
+        else:
+            self.fail("didn't raise ValueError on alternating list recursion")
+        y = []
+        x = [y, y]
+        # ensure that the marker is cleared
+        self.dumps(x)
+
+    def test_dictrecursion(self):
+        x = {}
+        x["test"] = x
+        try:
+            self.dumps(x)
+        except ValueError:
+            pass
+        else:
+            self.fail("didn't raise ValueError on dict recursion")
+        x = {}
+        y = {"a": x, "b": x}
+        # ensure that the marker is cleared
+        self.dumps(x)
+
+    def test_defaultrecursion(self):
+        class RecursiveJSONEncoder(self.json.JSONEncoder):
+            recurse = False
+            def default(self, o):
+                if o is JSONTestObject:
+                    if self.recurse:
+                        return [JSONTestObject]
+                    else:
+                        return 'JSONTestObject'
+                return self.json.JSONEncoder.default(o)
+
+        enc = RecursiveJSONEncoder()
+        self.assertEqual(enc.encode(JSONTestObject), '"JSONTestObject"')
+        enc.recurse = True
+        try:
+            enc.encode(JSONTestObject)
+        except ValueError:
+            pass
+        else:
+            self.fail("didn't raise ValueError on default recursion")
+
+
+    def test_highly_nested_objects_decoding(self):
+        # test that loading highly-nested objects doesn't segfault when C
+        # accelerations are used. See #12017
+        with self.assertRaises(RecursionError):
+            with support.infinite_recursion():
+                self.loads('{"a":' * 100000 + '1' + '}' * 100000)
+        with self.assertRaises(RecursionError):
+            with support.infinite_recursion():
+                self.loads('{"a":' * 100000 + '[1]' + '}' * 100000)
+        with self.assertRaises(RecursionError):
+            with support.infinite_recursion():
+                self.loads('[' * 100000 + '1' + ']' * 100000)
+
+    def test_highly_nested_objects_encoding(self):
+        # See #12051
+        l, d = [], {}
+        for x in range(100000):
+            l, d = [l], {'k':d}
+        with self.assertRaises(RecursionError):
+            with support.infinite_recursion(5000):
+                self.dumps(l)
+        with self.assertRaises(RecursionError):
+            with support.infinite_recursion(5000):
+                self.dumps(d)
+
+    def test_endless_recursion(self):
+        # See #12051
+        class EndlessJSONEncoder(self.json.JSONEncoder):
+            def default(self, o):
+                """If check_circular is False, this will keep adding another list."""
+                return [o]
+
+        with self.assertRaises(RecursionError):
+            with support.infinite_recursion(1000):
+                EndlessJSONEncoder(check_circular=False).encode(5j)
+
+
+class TestPyRecursion(TestRecursion, PyTest): pass
+class TestCRecursion(TestRecursion, CTest): pass