Uploaded Test files

venv/Lib/site-packages/ipykernel/tests/test_start_kernel.py

@@ -0,0 +1,51 @@
+from .test_embed_kernel import setup_kernel
+from flaky import flaky
+
+TIMEOUT = 15
+
+
+@flaky(max_runs=3)
+def test_ipython_start_kernel_userns():
+    cmd = ('from IPython import start_kernel\n'
+           'ns = {"tre": 123}\n'
+           'start_kernel(user_ns=ns)')
+
+    with setup_kernel(cmd) as client:
+        msg_id = client.inspect('tre')
+        msg = client.get_shell_msg(block=True, timeout=TIMEOUT)
+        content = msg['content']
+        assert content['found']
+        text = content['data']['text/plain']
+        assert u'123' in text
+
+        # user_module should be an instance of DummyMod
+        msg_id = client.execute("usermod = get_ipython().user_module")
+        msg = client.get_shell_msg(block=True, timeout=TIMEOUT)
+        content = msg['content']
+        assert content['status'] == u'ok'
+        msg_id = client.inspect('usermod')
+        msg = client.get_shell_msg(block=True, timeout=TIMEOUT)
+        content = msg['content']
+        assert content['found']
+        text = content['data']['text/plain']
+        assert u'DummyMod' in text
+
+
+@flaky(max_runs=3)
+def test_ipython_start_kernel_no_userns():
+    # Issue #4188 - user_ns should be passed to shell as None, not {}
+    cmd = ('from IPython import start_kernel\n'
+           'start_kernel()')
+
+    with setup_kernel(cmd) as client:
+        # user_module should not be an instance of DummyMod
+        msg_id = client.execute("usermod = get_ipython().user_module")
+        msg = client.get_shell_msg(block=True, timeout=TIMEOUT)
+        content = msg['content']
+        assert content['status'] == u'ok'
+        msg_id = client.inspect('usermod')
+        msg = client.get_shell_msg(block=True, timeout=TIMEOUT)
+        content = msg['content']
+        assert content['found']
+        text = content['data']['text/plain']
+        assert u'DummyMod' not in text