mirror of https://github.com/python/cpython
327 lines
12 KiB
Python
327 lines
12 KiB
Python
import sys
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import os
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import os.path
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import difflib
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import subprocess
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import re
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import pydoc
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import inspect
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import unittest
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import test.test_support
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from contextlib import contextmanager
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from test.test_support import (
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TESTFN, forget, rmtree, EnvironmentVarGuard, reap_children)
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from test import pydoc_mod
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expected_text_pattern = \
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"""
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NAME
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test.pydoc_mod - This is a test module for test_pydoc
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FILE
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%s
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%s
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CLASSES
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__builtin__.object
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B
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A
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\x20\x20\x20\x20
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class A
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| Hello and goodbye
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|\x20\x20
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| Methods defined here:
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|\x20\x20
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| __init__()
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| Wow, I have no function!
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\x20\x20\x20\x20
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class B(__builtin__.object)
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| Data descriptors defined here:
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|\x20\x20
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| __dict__
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| dictionary for instance variables (if defined)
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|\x20\x20
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| __weakref__
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| list of weak references to the object (if defined)
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|\x20\x20
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| ----------------------------------------------------------------------
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| Data and other attributes defined here:
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|\x20\x20
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| NO_MEANING = 'eggs'
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FUNCTIONS
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doc_func()
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This function solves all of the world's problems:
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hunger
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lack of Python
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war
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\x20\x20\x20\x20
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nodoc_func()
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DATA
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__author__ = 'Benjamin Peterson'
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__credits__ = 'Nobody'
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__version__ = '1.2.3.4'
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VERSION
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1.2.3.4
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AUTHOR
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Benjamin Peterson
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CREDITS
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Nobody
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""".strip()
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expected_html_pattern = \
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"""
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<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="heading">
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<tr bgcolor="#7799ee">
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<td valign=bottom> <br>
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<font color="#ffffff" face="helvetica, arial"> <br><big><big><strong><a href="test.html"><font color="#ffffff">test</font></a>.pydoc_mod</strong></big></big> (version 1.2.3.4)</font></td
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><td align=right valign=bottom
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><font color="#ffffff" face="helvetica, arial"><a href=".">index</a><br><a href="file:%s">%s</a>%s</font></td></tr></table>
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<p><tt>This is a test module for test_pydoc</tt></p>
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<p>
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<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
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<tr bgcolor="#ee77aa">
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<td colspan=3 valign=bottom> <br>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Classes</strong></big></font></td></tr>
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\x20\x20\x20\x20
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<tr><td bgcolor="#ee77aa"><tt> </tt></td><td> </td>
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<td width="100%%"><dl>
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<dt><font face="helvetica, arial"><a href="__builtin__.html#object">__builtin__.object</a>
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</font></dt><dd>
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<dl>
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<dt><font face="helvetica, arial"><a href="test.pydoc_mod.html#B">B</a>
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</font></dt></dl>
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</dd>
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<dt><font face="helvetica, arial"><a href="test.pydoc_mod.html#A">A</a>
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</font></dt></dl>
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<p>
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<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
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<tr bgcolor="#ffc8d8">
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<td colspan=3 valign=bottom> <br>
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<font color="#000000" face="helvetica, arial"><a name="A">class <strong>A</strong></a></font></td></tr>
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\x20\x20\x20\x20
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<tr bgcolor="#ffc8d8"><td rowspan=2><tt> </tt></td>
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<td colspan=2><tt>Hello and goodbye<br> </tt></td></tr>
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<tr><td> </td>
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<td width="100%%">Methods defined here:<br>
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<dl><dt><a name="A-__init__"><strong>__init__</strong></a>()</dt><dd><tt>Wow, I have no function!</tt></dd></dl>
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</td></tr></table> <p>
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<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
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<tr bgcolor="#ffc8d8">
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<td colspan=3 valign=bottom> <br>
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<font color="#000000" face="helvetica, arial"><a name="B">class <strong>B</strong></a>(<a href="__builtin__.html#object">__builtin__.object</a>)</font></td></tr>
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\x20\x20\x20\x20
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<tr><td bgcolor="#ffc8d8"><tt> </tt></td><td> </td>
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<td width="100%%">Data descriptors defined here:<br>
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<dl><dt><strong>__dict__</strong></dt>
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<dd><tt>dictionary for instance variables (if defined)</tt></dd>
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</dl>
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<dl><dt><strong>__weakref__</strong></dt>
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<dd><tt>list of weak references to the object (if defined)</tt></dd>
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</dl>
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<hr>
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Data and other attributes defined here:<br>
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<dl><dt><strong>NO_MEANING</strong> = 'eggs'</dl>
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</td></tr></table></td></tr></table><p>
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<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
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<tr bgcolor="#eeaa77">
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<td colspan=3 valign=bottom> <br>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Functions</strong></big></font></td></tr>
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\x20\x20\x20\x20
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<tr><td bgcolor="#eeaa77"><tt> </tt></td><td> </td>
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<td width="100%%"><dl><dt><a name="-doc_func"><strong>doc_func</strong></a>()</dt><dd><tt>This function solves all of the world's problems:<br>
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hunger<br>
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lack of Python<br>
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war</tt></dd></dl>
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<dl><dt><a name="-nodoc_func"><strong>nodoc_func</strong></a>()</dt></dl>
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</td></tr></table><p>
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<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
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<tr bgcolor="#55aa55">
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<td colspan=3 valign=bottom> <br>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Data</strong></big></font></td></tr>
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\x20\x20\x20\x20
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<tr><td bgcolor="#55aa55"><tt> </tt></td><td> </td>
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<td width="100%%"><strong>__author__</strong> = 'Benjamin Peterson'<br>
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<strong>__credits__</strong> = 'Nobody'<br>
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<strong>__version__</strong> = '1.2.3.4'</td></tr></table><p>
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<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
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<tr bgcolor="#7799ee">
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<td colspan=3 valign=bottom> <br>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Author</strong></big></font></td></tr>
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\x20\x20\x20\x20
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<tr><td bgcolor="#7799ee"><tt> </tt></td><td> </td>
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<td width="100%%">Benjamin Peterson</td></tr></table><p>
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<table width="100%%" cellspacing=0 cellpadding=2 border=0 summary="section">
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<tr bgcolor="#7799ee">
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<td colspan=3 valign=bottom> <br>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Credits</strong></big></font></td></tr>
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\x20\x20\x20\x20
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<tr><td bgcolor="#7799ee"><tt> </tt></td><td> </td>
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<td width="100%%">Nobody</td></tr></table>
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""".strip()
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# output pattern for missing module
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missing_pattern = "no Python documentation found for '%s'"
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# output pattern for module with bad imports
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badimport_pattern = "problem in %s - <type 'exceptions.ImportError'>: No module named %s"
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def run_pydoc(module_name, *args):
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"""
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Runs pydoc on the specified module. Returns the stripped
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output of pydoc.
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"""
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cmd = [sys.executable, pydoc.__file__, " ".join(args), module_name]
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try:
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output = subprocess.Popen(cmd, stdout=subprocess.PIPE).communicate()[0]
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return output.strip()
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finally:
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reap_children()
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def get_pydoc_html(module):
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"Returns pydoc generated output as html"
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doc = pydoc.HTMLDoc()
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output = doc.docmodule(module)
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loc = doc.getdocloc(pydoc_mod) or ""
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if loc:
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loc = "<br><a href=\"" + loc + "\">Module Docs</a>"
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return output.strip(), loc
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def get_pydoc_text(module):
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"Returns pydoc generated output as text"
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doc = pydoc.TextDoc()
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loc = doc.getdocloc(pydoc_mod) or ""
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if loc:
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loc = "\nMODULE DOCS\n " + loc + "\n"
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output = doc.docmodule(module)
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# cleanup the extra text formatting that pydoc preforms
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patt = re.compile('\b.')
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output = patt.sub('', output)
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return output.strip(), loc
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def print_diffs(text1, text2):
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"Prints unified diffs for two texts"
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lines1 = text1.splitlines(True)
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lines2 = text2.splitlines(True)
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diffs = difflib.unified_diff(lines1, lines2, n=0, fromfile='expected',
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tofile='got')
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print '\n' + ''.join(diffs)
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class PyDocDocTest(unittest.TestCase):
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def test_html_doc(self):
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result, doc_loc = get_pydoc_html(pydoc_mod)
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mod_file = inspect.getabsfile(pydoc_mod)
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if sys.platform == 'win32':
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import nturl2path
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mod_url = nturl2path.pathname2url(mod_file)
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else:
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mod_url = mod_file
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expected_html = expected_html_pattern % (mod_url, mod_file, doc_loc)
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if result != expected_html:
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print_diffs(expected_html, result)
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self.fail("outputs are not equal, see diff above")
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def test_text_doc(self):
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result, doc_loc = get_pydoc_text(pydoc_mod)
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expected_text = expected_text_pattern % \
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(inspect.getabsfile(pydoc_mod), doc_loc)
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if result != expected_text:
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print_diffs(expected_text, result)
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self.fail("outputs are not equal, see diff above")
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def test_not_here(self):
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missing_module = "test.i_am_not_here"
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result = run_pydoc(missing_module)
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expected = missing_pattern % missing_module
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self.assertEqual(expected, result,
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"documentation for missing module found")
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def test_badimport(self):
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# This tests the fix for issue 5230, where if pydoc found the module
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# but the module had an internal import error pydoc would report no doc
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# found.
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modname = 'testmod_xyzzy'
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testpairs = (
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('i_am_not_here', 'i_am_not_here'),
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('test.i_am_not_here_either', 'i_am_not_here_either'),
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('test.i_am_not_here.neither_am_i', 'i_am_not_here.neither_am_i'),
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('i_am_not_here.{}'.format(modname), 'i_am_not_here.{}'.format(modname)),
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('test.{}'.format(modname), modname),
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)
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@contextmanager
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def newdirinpath(dir):
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os.mkdir(dir)
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sys.path.insert(0, dir)
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yield
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sys.path.pop(0)
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rmtree(dir)
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with newdirinpath(TESTFN), EnvironmentVarGuard() as env:
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env['PYTHONPATH'] = TESTFN
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fullmodname = os.path.join(TESTFN, modname)
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sourcefn = fullmodname + os.extsep + "py"
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for importstring, expectedinmsg in testpairs:
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f = open(sourcefn, 'w')
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f.write("import {}\n".format(importstring))
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f.close()
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try:
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result = run_pydoc(modname)
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finally:
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forget(modname)
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expected = badimport_pattern % (modname, expectedinmsg)
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self.assertEqual(expected, result)
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def test_input_strip(self):
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missing_module = " test.i_am_not_here "
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result = run_pydoc(missing_module)
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expected = missing_pattern % missing_module.strip()
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self.assertEqual(expected, result,
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"white space was not stripped from module name "
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"or other error output mismatch")
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class TestDescriptions(unittest.TestCase):
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def test_module(self):
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# Check that pydocfodder module can be described
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from test import pydocfodder
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doc = pydoc.render_doc(pydocfodder)
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self.assertIn("pydocfodder", doc)
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def test_classic_class(self):
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class C: "Classic class"
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c = C()
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self.assertEqual(pydoc.describe(C), 'class C')
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self.assertEqual(pydoc.describe(c), 'instance of C')
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expected = 'instance of C in module %s' % __name__
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self.assertIn(expected, pydoc.render_doc(c))
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def test_class(self):
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class C(object): "New-style class"
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c = C()
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self.assertEqual(pydoc.describe(C), 'class C')
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self.assertEqual(pydoc.describe(c), 'C')
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expected = 'C in module %s object' % __name__
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self.assertIn(expected, pydoc.render_doc(c))
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def test_main():
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test.test_support.run_unittest(PyDocDocTest,
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TestDescriptions)
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if __name__ == "__main__":
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test_main()
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