test for text/plain display handling in console

IPython/terminal/console/tests/test_console.py

@@ -1,63 +1,100
 """Tests for two-process terminal frontend
 
 Currently only has the most simple test possible, starting a console and running
 a single command.
 
 Authors:
 
 * Min RK
 """
 
 #-----------------------------------------------------------------------------
 # Imports
 #-----------------------------------------------------------------------------
 
 import sys
 import time
 
 import nose.tools as nt
 from nose import SkipTest
 
 import IPython.testing.tools as tt
 from IPython.testing import decorators as dec
 from IPython.utils import py3compat
 
 #-----------------------------------------------------------------------------
 # Tests
 #-----------------------------------------------------------------------------
 
 @dec.skip_win32
 def test_console_starts():
     """test that `ipython console` starts a terminal"""
     from IPython.external import pexpect
     
     args = ['console', '--colors=NoColor']
     # FIXME: remove workaround for 2.6 support
     if sys.version_info[:2] > (2,6):
         args = ['-m', 'IPython'] + args
         cmd = sys.executable
     else:
         cmd = 'ipython'
     
     try:
         p = pexpect.spawn(cmd, args=args)
     except IOError:
         raise SkipTest("Couldn't find command %s" % cmd)
     
     # timeout after one minute
     t = 60
     idx = p.expect([r'In \[\d+\]', pexpect.EOF], timeout=t)
     p.sendline('5')
     idx = p.expect([r'Out\[\d+\]: 5', pexpect.EOF], timeout=t)
     idx = p.expect([r'In \[\d+\]', pexpect.EOF], timeout=t)
     # send ctrl-D;ctrl-D to exit
     p.sendeof()
     p.sendeof()
     p.expect([pexpect.EOF, pexpect.TIMEOUT], timeout=t)
     if p.isalive():
         p.terminate()
 
 def test_help_output():
     """ipython console --help-all works"""
     tt.help_all_output_test('console')
 
+
+def test_display_text():
+    "Ensure display protocol plain/text key is supported"
+    # equivalent of:
+    #
+    #   x = %lsmagic
+    #   from IPython.display import display; display(x);
+
+    from IPython.external import pexpect
+    
+    args = ['console', '--colors=NoColor']
+    # FIXME: remove workaround for 2.6 support
+    if sys.version_info[:2] > (2,6):
+        args = ['-m', 'IPython'] + args
+        cmd = sys.executable
+    else:
+        cmd = 'ipython'
+    
+    try:
+        p = pexpect.spawn(cmd, args=args)
+    except IOError:
+        raise SkipTest("Couldn't find command %s" % cmd)
+    
+    # timeout after one minute
+    t = 60
+    idx = p.expect([r'In \[\d+\]', pexpect.EOF], timeout=t)
+    p.sendline('x = %lsmagic')
+    idx = p.expect([r'In \[\d+\]', pexpect.EOF], timeout=t)
+    p.sendline('from IPython.display import display; display(x);')
+    p.expect([r'Available line magics:', pexpect.EOF], timeout=t)
+
+    # send ctrl-D;ctrl-D to exit
+    p.sendeof()
+    p.sendeof()
+    p.expect([pexpect.EOF, pexpect.TIMEOUT], timeout=t)
+    if p.isalive():
+        p.terminate()