From 44cd86bbdddb1f7b05deba2c1986a1e98f992429 Mon Sep 17 00:00:00 2001
From: Dong-hee Na <donghee.na92@gmail.com>
Date: Mon, 26 Aug 2019 16:04:35 +0900
Subject: [PATCH] bpo-37805: Add tests for json.dump(..., skipkeys=True)
 (GH-15489)

https://bugs.python.org/issue37805



Automerge-Triggered-By: @methane
---
 Lib/test/test_json/test_dump.py                        | 10 ++++++++++
 .../Tests/2019-08-25-19-51-46.bpo-37805.Kl1sti.rst     |  1 +
 2 files changed, 11 insertions(+)
 create mode 100644 Misc/NEWS.d/next/Tests/2019-08-25-19-51-46.bpo-37805.Kl1sti.rst

diff --git a/Lib/test/test_json/test_dump.py b/Lib/test/test_json/test_dump.py
index fd0d86b392c..13b40020781 100644
--- a/Lib/test/test_json/test_dump.py
+++ b/Lib/test/test_json/test_dump.py
@@ -12,6 +12,16 @@ class TestDump:
     def test_dumps(self):
         self.assertEqual(self.dumps({}), '{}')
 
+    def test_dump_skipkeys(self):
+        v = {b'invalid_key': False, 'valid_key': True}
+        with self.assertRaises(TypeError):
+            self.json.dumps(v)
+
+        s = self.json.dumps(v, skipkeys=True)
+        o = self.json.loads(s)
+        self.assertIn('valid_key', o)
+        self.assertNotIn(b'invalid_key', o)
+
     def test_encode_truefalse(self):
         self.assertEqual(self.dumps(
                  {True: False, False: True}, sort_keys=True),
diff --git a/Misc/NEWS.d/next/Tests/2019-08-25-19-51-46.bpo-37805.Kl1sti.rst b/Misc/NEWS.d/next/Tests/2019-08-25-19-51-46.bpo-37805.Kl1sti.rst
new file mode 100644
index 00000000000..478c38c3d4c
--- /dev/null
+++ b/Misc/NEWS.d/next/Tests/2019-08-25-19-51-46.bpo-37805.Kl1sti.rst
@@ -0,0 +1 @@
+Add tests for json.dump(..., skipkeys=True). Patch by Dong-hee Na.