add single two-process terminal test

IPython/frontend/terminal/console/tests/test_console.py

@@ -0,0 +1,59 b''
+"""Tests for two-process terminal frontend
+
+Currenlty only has the most simple test possible, starting a console and running
+a single command.
+
+Authors:
+
+* Min RK
+"""
+
+#-----------------------------------------------------------------------------
+# Imports
+#-----------------------------------------------------------------------------
+
+import time
+
+import nose.tools as nt
+from nose import SkipTest
+
+from IPython.testing import decorators as dec
+from IPython.testing import tools as tt
+from IPython.utils import py3compat
+from IPython.utils.process import find_cmd
+
+#-----------------------------------------------------------------------------
+# Test functions begin
+#-----------------------------------------------------------------------------
+
[e-mail]_win32
+def test_console_starts():
+    """test that `ipython console` starts a terminal"""
+    from IPython.external import pexpect
+    
+    # weird IOErrors prevent this from firing sometimes:
+    ipython_cmd = None
+    for i in range(5):
+        try:
+            ipython_cmd = find_cmd('ipython3' if py3compat.PY3 else 'ipython')
+        except IOError:
+            time.sleep(0.1)
+        else:
+            break
+    if ipython_cmd is None:
+        raise SkipTest("Could not determine ipython command")
+    
+    p = pexpect.spawn(ipython_cmd, args=['console', '--colors=NoColor'])
+    idx = p.expect([r'In \[\d+\]', pexpect.EOF], timeout=4)
+    nt.assert_equals(idx, 0, "expected in prompt")
+    p.sendline('5')
+    idx = p.expect([r'Out\[\d+\]: 5', pexpect.EOF], timeout=1)
+    nt.assert_equals(idx, 0, "expected out prompt")
+    idx = p.expect([r'In \[\d+\]', pexpect.EOF], timeout=1)
+    nt.assert_equals(idx, 0, "expected second in prompt")
+    # send ctrl-D;ctrl-D to exit
+    p.sendeof()
+    p.sendeof()
+    p.expect([pexpect.EOF, pexpect.TIMEOUT], timeout=1)
+    if p.isalive():
+        p.terminate()