[Checkins] SVN: zope.app.wsgi/trunk/ Merge branch janjaapdriessen-webtest.

Jan-Jaap Driessen jdriessen at thehealthagency.com
Tue Mar 15 18:41:30 EDT 2011


Log message for revision 120960:
  Merge branch janjaapdriessen-webtest.

Changed:
  U   zope.app.wsgi/trunk/bootstrap.py
  U   zope.app.wsgi/trunk/buildout.cfg
  U   zope.app.wsgi/trunk/setup.py
  U   zope.app.wsgi/trunk/src/zope/app/wsgi/testing.py
  U   zope.app.wsgi/trunk/src/zope/app/wsgi/testlayer.py
  U   zope.app.wsgi/trunk/src/zope/app/wsgi/testlayer.txt

-=-
Modified: zope.app.wsgi/trunk/bootstrap.py
===================================================================
--- zope.app.wsgi/trunk/bootstrap.py	2011-03-15 22:37:19 UTC (rev 120959)
+++ zope.app.wsgi/trunk/bootstrap.py	2011-03-15 22:41:30 UTC (rev 120960)
@@ -16,37 +16,245 @@
 Simply run this script in a directory containing a buildout.cfg.
 The script accepts buildout command-line options, so you can
 use the -c option to specify an alternate configuration file.
-
-$Id$
 """
 
-import os, shutil, sys, tempfile, urllib2
+import os, shutil, sys, tempfile, textwrap, urllib, urllib2, subprocess
+from optparse import OptionParser
 
-tmpeggs = tempfile.mkdtemp()
+if sys.platform == 'win32':
+    def quote(c):
+        if ' ' in c:
+            return '"%s"' % c # work around spawn lamosity on windows
+        else:
+            return c
+else:
+    quote = str
 
-ez = {}
-exec urllib2.urlopen('http://peak.telecommunity.com/dist/ez_setup.py'
-                     ).read() in ez
-ez['use_setuptools'](to_dir=tmpeggs, download_delay=0)
+# See zc.buildout.easy_install._has_broken_dash_S for motivation and comments.
+stdout, stderr = subprocess.Popen(
+    [sys.executable, '-Sc',
+     'try:\n'
+     '    import ConfigParser\n'
+     'except ImportError:\n'
+     '    print 1\n'
+     'else:\n'
+     '    print 0\n'],
+    stdout=subprocess.PIPE, stderr=subprocess.PIPE).communicate()
+has_broken_dash_S = bool(int(stdout.strip()))
 
-import pkg_resources
+# In order to be more robust in the face of system Pythons, we want to
+# run without site-packages loaded.  This is somewhat tricky, in
+# particular because Python 2.6's distutils imports site, so starting
+# with the -S flag is not sufficient.  However, we'll start with that:
+if not has_broken_dash_S and 'site' in sys.modules:
+    # We will restart with python -S.
+    args = sys.argv[:]
+    args[0:0] = [sys.executable, '-S']
+    args = map(quote, args)
+    os.execv(sys.executable, args)
+# Now we are running with -S.  We'll get the clean sys.path, import site
+# because distutils will do it later, and then reset the path and clean
+# out any namespace packages from site-packages that might have been
+# loaded by .pth files.
+clean_path = sys.path[:]
+import site
+sys.path[:] = clean_path
+for k, v in sys.modules.items():
+    if k in ('setuptools', 'pkg_resources') or (
+        hasattr(v, '__path__') and
+        len(v.__path__)==1 and
+        not os.path.exists(os.path.join(v.__path__[0],'__init__.py'))):
+        # This is a namespace package.  Remove it.
+        sys.modules.pop(k)
 
-cmd = 'from setuptools.command.easy_install import main; main()'
-if sys.platform == 'win32':
-    cmd = '"%s"' % cmd # work around spawn lamosity on windows
+is_jython = sys.platform.startswith('java')
 
+setuptools_source = 'http://peak.telecommunity.com/dist/ez_setup.py'
+distribute_source = 'http://python-distribute.org/distribute_setup.py'
+
+# parsing arguments
+def normalize_to_url(option, opt_str, value, parser):
+    if value:
+        if '://' not in value: # It doesn't smell like a URL.
+            value = 'file://%s' % (
+                urllib.pathname2url(
+                    os.path.abspath(os.path.expanduser(value))),)
+        if opt_str == '--download-base' and not value.endswith('/'):
+            # Download base needs a trailing slash to make the world happy.
+            value += '/'
+    else:
+        value = None
+    name = opt_str[2:].replace('-', '_')
+    setattr(parser.values, name, value)
+
+usage = '''\
+[DESIRED PYTHON FOR BUILDOUT] bootstrap.py [options]
+
+Bootstraps a buildout-based project.
+
+Simply run this script in a directory containing a buildout.cfg, using the
+Python that you want bin/buildout to use.
+
+Note that by using --setup-source and --download-base to point to
+local resources, you can keep this script from going over the network.
+'''
+
+parser = OptionParser(usage=usage)
+parser.add_option("-v", "--version", dest="version",
+                          help="use a specific zc.buildout version")
+parser.add_option("-d", "--distribute",
+                   action="store_true", dest="use_distribute", default=False,
+                   help="Use Distribute rather than Setuptools.")
+parser.add_option("--setup-source", action="callback", dest="setup_source",
+                  callback=normalize_to_url, nargs=1, type="string",
+                  help=("Specify a URL or file location for the setup file. "
+                        "If you use Setuptools, this will default to " +
+                        setuptools_source + "; if you use Distribute, this "
+                        "will default to " + distribute_source +"."))
+parser.add_option("--download-base", action="callback", dest="download_base",
+                  callback=normalize_to_url, nargs=1, type="string",
+                  help=("Specify a URL or directory for downloading "
+                        "zc.buildout and either Setuptools or Distribute. "
+                        "Defaults to PyPI."))
+parser.add_option("--eggs",
+                  help=("Specify a directory for storing eggs.  Defaults to "
+                        "a temporary directory that is deleted when the "
+                        "bootstrap script completes."))
+parser.add_option("-t", "--accept-buildout-test-releases",
+                  dest='accept_buildout_test_releases',
+                  action="store_true", default=False,
+                  help=("Normally, if you do not specify a --version, the "
+                        "bootstrap script and buildout gets the newest "
+                        "*final* versions of zc.buildout and its recipes and "
+                        "extensions for you.  If you use this flag, "
+                        "bootstrap and buildout will get the newest releases "
+                        "even if they are alphas or betas."))
+parser.add_option("-c", None, action="store", dest="config_file",
+                   help=("Specify the path to the buildout configuration "
+                         "file to be used."))
+
+options, args = parser.parse_args()
+
+# if -c was provided, we push it back into args for buildout's main function
+if options.config_file is not None:
+    args += ['-c', options.config_file]
+
+if options.eggs:
+    eggs_dir = os.path.abspath(os.path.expanduser(options.eggs))
+else:
+    eggs_dir = tempfile.mkdtemp()
+
+if options.setup_source is None:
+    if options.use_distribute:
+        options.setup_source = distribute_source
+    else:
+        options.setup_source = setuptools_source
+
+if options.accept_buildout_test_releases:
+    args.append('buildout:accept-buildout-test-releases=true')
+args.append('bootstrap')
+
+try:
+    import pkg_resources
+    import setuptools # A flag.  Sometimes pkg_resources is installed alone.
+    if not hasattr(pkg_resources, '_distribute'):
+        raise ImportError
+except ImportError:
+    ez_code = urllib2.urlopen(
+        options.setup_source).read().replace('\r\n', '\n')
+    ez = {}
+    exec ez_code in ez
+    setup_args = dict(to_dir=eggs_dir, download_delay=0)
+    if options.download_base:
+        setup_args['download_base'] = options.download_base
+    if options.use_distribute:
+        setup_args['no_fake'] = True
+    ez['use_setuptools'](**setup_args)
+    if 'pkg_resources' in sys.modules:
+        reload(sys.modules['pkg_resources'])
+    import pkg_resources
+    # This does not (always?) update the default working set.  We will
+    # do it.
+    for path in sys.path:
+        if path not in pkg_resources.working_set.entries:
+            pkg_resources.working_set.add_entry(path)
+
+cmd = [quote(sys.executable),
+       '-c',
+       quote('from setuptools.command.easy_install import main; main()'),
+       '-mqNxd',
+       quote(eggs_dir)]
+
+if not has_broken_dash_S:
+    cmd.insert(1, '-S')
+
+find_links = options.download_base
+if not find_links:
+    find_links = os.environ.get('bootstrap-testing-find-links')
+if find_links:
+    cmd.extend(['-f', quote(find_links)])
+
+if options.use_distribute:
+    setup_requirement = 'distribute'
+else:
+    setup_requirement = 'setuptools'
 ws = pkg_resources.working_set
-assert os.spawnle(
-    os.P_WAIT, sys.executable, sys.executable,
-    '-c', cmd, '-mqNxd', tmpeggs, 'zc.buildout',
-    dict(os.environ,
-         PYTHONPATH=
-         ws.find(pkg_resources.Requirement.parse('setuptools')).location
-         ),
-    ) == 0
+setup_requirement_path = ws.find(
+    pkg_resources.Requirement.parse(setup_requirement)).location
+env = dict(
+    os.environ,
+    PYTHONPATH=setup_requirement_path)
 
-ws.add_entry(tmpeggs)
-ws.require('zc.buildout')
+requirement = 'zc.buildout'
+version = options.version
+if version is None and not options.accept_buildout_test_releases:
+    # Figure out the most recent final version of zc.buildout.
+    import setuptools.package_index
+    _final_parts = '*final-', '*final'
+    def _final_version(parsed_version):
+        for part in parsed_version:
+            if (part[:1] == '*') and (part not in _final_parts):
+                return False
+        return True
+    index = setuptools.package_index.PackageIndex(
+        search_path=[setup_requirement_path])
+    if find_links:
+        index.add_find_links((find_links,))
+    req = pkg_resources.Requirement.parse(requirement)
+    if index.obtain(req) is not None:
+        best = []
+        bestv = None
+        for dist in index[req.project_name]:
+            distv = dist.parsed_version
+            if _final_version(distv):
+                if bestv is None or distv > bestv:
+                    best = [dist]
+                    bestv = distv
+                elif distv == bestv:
+                    best.append(dist)
+        if best:
+            best.sort()
+            version = best[-1].version
+if version:
+    requirement = '=='.join((requirement, version))
+cmd.append(requirement)
+
+if is_jython:
+    import subprocess
+    exitcode = subprocess.Popen(cmd, env=env).wait()
+else: # Windows prefers this, apparently; otherwise we would prefer subprocess
+    exitcode = os.spawnle(*([os.P_WAIT, sys.executable] + cmd + [env]))
+if exitcode != 0:
+    sys.stdout.flush()
+    sys.stderr.flush()
+    print ("An error occurred when trying to install zc.buildout. "
+           "Look above this message for any errors that "
+           "were output by easy_install.")
+    sys.exit(exitcode)
+
+ws.add_entry(eggs_dir)
+ws.require(requirement)
 import zc.buildout.buildout
-zc.buildout.buildout.main(sys.argv[1:] + ['bootstrap'])
-shutil.rmtree(tmpeggs)
+zc.buildout.buildout.main(args)
+if not options.eggs: # clean up temporary egg directory
+    shutil.rmtree(eggs_dir)

Modified: zope.app.wsgi/trunk/buildout.cfg
===================================================================
--- zope.app.wsgi/trunk/buildout.cfg	2011-03-15 22:37:19 UTC (rev 120959)
+++ zope.app.wsgi/trunk/buildout.cfg	2011-03-15 22:41:30 UTC (rev 120960)
@@ -1,7 +1,13 @@
 [buildout]
-develop = . 
+extends =
+  http://download.zope.org/zopetoolkit/index/1.1/zopeapp-versions.cfg
+  http://download.zope.org/zopetoolkit/index/1.1/ztk-versions.cfg
+develop = .
 parts = test
 
 [test]
 recipe = zc.recipe.testrunner
 eggs = zope.app.wsgi [test]
+
+[versions]
+zope.testbrowser = 4.0.0

Modified: zope.app.wsgi/trunk/setup.py
===================================================================
--- zope.app.wsgi/trunk/setup.py	2011-03-15 22:37:19 UTC (rev 120959)
+++ zope.app.wsgi/trunk/setup.py	2011-03-15 22:41:30 UTC (rev 120960)
@@ -57,8 +57,8 @@
           ]),
       install_requires=[
           'setuptools',
+          'WebTest',
           'ZConfig',
-          'wsgi_intercept',
           'ZODB3',
           'zope.app.appsetup >= 3.14',
           'zope.processlifetime',
@@ -74,7 +74,7 @@
           'zope.lifecycleevent',
           'zope.session',
           'zope.site',
-          'zope.testbrowser [wsgi] >= 3.11',
+          'zope.testbrowser[wsgi] >= 4.0.0',
           'zope.testing',
           'zope.traversing',
           ],

Modified: zope.app.wsgi/trunk/src/zope/app/wsgi/testing.py
===================================================================
--- zope.app.wsgi/trunk/src/zope/app/wsgi/testing.py	2011-03-15 22:37:19 UTC (rev 120959)
+++ zope.app.wsgi/trunk/src/zope/app/wsgi/testing.py	2011-03-15 22:41:30 UTC (rev 120960)
@@ -54,6 +54,9 @@
               </body>
             </html>'''
 
+class ErrorRaisingView(FileView):
+    def __call__(self):
+        return 1/0
 
 class SillyMiddleWare(object):
     def __init__(self, application):

Modified: zope.app.wsgi/trunk/src/zope/app/wsgi/testlayer.py
===================================================================
--- zope.app.wsgi/trunk/src/zope/app/wsgi/testlayer.py	2011-03-15 22:37:19 UTC (rev 120959)
+++ zope.app.wsgi/trunk/src/zope/app/wsgi/testlayer.py	2011-03-15 22:41:30 UTC (rev 120960)
@@ -18,8 +18,8 @@
 import transaction
 from zope.app.appsetup.testlayer import ZODBLayer
 from zope.app.wsgi import WSGIPublisherApplication
-import wsgi_intercept
 import zope.testbrowser.wsgi
+from webtest import TestRequest
 
 # BBB
 from zope.testbrowser.wsgi import Browser
@@ -46,36 +46,12 @@
         self.root_factory()._p_jar.sync()
 
 
-class HandleErrorsMiddleware(object):
-    """This middleware makes the WSGI application compatible with the
-    HTTPCaller behavior defined in zope.app.testing.functional:
-    - It honors the X-zope-handle-errors header in order to support
-      zope.testbrowser Browser handleErrors flag.
-    """
-
-    default_handle_errors = 'True'
-
-    def __init__(self, app, wsgi_stack):
-        self.app = app
-        self.wsgi_stack = wsgi_stack
-
-    def __call__(self, environ, start_response):
-        # Handle debug mode
-        handle_errors = environ.get(
-            'HTTP_X_ZOPE_HANDLE_ERRORS', self.default_handle_errors)
-        self.app.handleErrors = handle_errors == 'True'
-
-        for entry in self.wsgi_stack(environ, start_response):
-            yield entry
-
-
 class BrowserLayer(zope.testbrowser.wsgi.Layer, ZODBLayer):
     """This create a test layer with a test database and register a wsgi
     application to use that test database.
 
-    A wsgi_intercept handler is installed as well, so you can use a
-    WSGI version of zope.testbrowser Browser instance to access the
-    application.
+    You can use a WSGI version of zope.testbrowser Browser instance to access
+    the application.
     """
 
     def setup_middleware(self, app):
@@ -90,8 +66,7 @@
         # off of that in testSetUp()
         fake_db = object()
         self._application = WSGIPublisherApplication(fake_db)
-        return HandleErrorsMiddleware(
-            self._application,
+        return zope.testbrowser.wsgi.AuthorizationMiddleware(
             TransactionMiddleware(
                 self.getRootFolder,
                 self.setup_middleware(self._application)))
@@ -114,80 +89,45 @@
     zope.app.testing.functional.
     """
 
-    def __init__(self, response_text):
-        self.response_text = response_text
+    def __init__(self, response):
+        self.response = response
 
     def getStatus(self):
-        line = self.getStatusString()
-        status, rest = line.split(' ', 1)
-        return int(status)
+        return self.response.status_int
 
     def getStatusString(self):
-        status_line = self.response_text.split('\n', 1)[0]
-        protocol, status_string = status_line.split(' ', 1)
-        return status_string
+        return self.response.status
 
     def getHeader(self, name, default=None):
-        without_body = self.response_text.split('\n\n', 1)[0]
-        headers_text = without_body.split('\n', 1)[1]
-        headers = headers_text.split('\n')
-        result = []
-        for header in headers:
-            header_name, header_value = header.split(': ', 1)
-            if name == header_name:
-                result.append(header_value)
-        if not result:
-            return default
-        elif len(result) == 1:
-            return result[0]
-        else:
-            return result
+        return self.response.headers.get(name, default)
 
     def getHeaders(self):
-        without_body = self.response_text.split('\n\n', 1)[0]
-        headers_text = without_body.split('\n', 1)[1]
-        headers = headers_text.split('\n')
-        result = []
-        for header in headers:
-            header_name, header_value = header.split(':', 1)
-            result.append((header_name, header_value))
-        return result
+        return self.response.headerlist
 
     def getBody(self):
-        parts = self.response_text.split('\n\n', 1)
-        if len(parts) < 2:
-            return ''
-        return parts[1]
+        return self.response.body
 
     def getOutput(self):
-        return self.response_text
+        parts = ['HTTP/1.0 ' + self.response.status]
+        parts += map('%s: %s'.__mod__, self.response.headerlist)
+        if self.response.body:
+            parts += ['', self.response.body]
+        return '\n'.join(parts)
 
     __str__ = getOutput
 
-# XXX seems to only used by tests of zope.app.publication, maybe it should
-# be moved there
-def http(string, handle_errors=True):
-    """This function behave like the HTTPCaller of
-    zope.app.testing.functional.
-    """
-    key = ('localhost', 80)
 
-    if key not in wsgi_intercept._wsgi_intercept:
+def http(string, handle_errors=True):
+    app = zope.testbrowser.wsgi.Layer.get_app()
+    if app is None:
         raise NotInBrowserLayer(NotInBrowserLayer.__doc__)
 
-    (app_fn, script_name) = wsgi_intercept._wsgi_intercept[key]
-    app = app_fn()
+    request = TestRequest.from_file(StringIO(string))
+    request.environ['wsgi.handleErrors'] = handle_errors
+    response = request.get_response(app)
+    return FakeResponse(response)
 
-    if not string.endswith('\n'):
-        string += '\n'
-    string += 'X-zope-handle-errors: %s\n' % handle_errors
 
-    socket = wsgi_intercept.wsgi_fake_socket(app, 'localhost', 80, '')
-    socket.sendall(string.lstrip())
-    result = socket.makefile()
-    return FakeResponse(result.getvalue())
-
-
 class FakeSocket(object):
 
     def __init__(self, data):

Modified: zope.app.wsgi/trunk/src/zope/app/wsgi/testlayer.txt
===================================================================
--- zope.app.wsgi/trunk/src/zope/app/wsgi/testlayer.txt	2011-03-15 22:37:19 UTC (rev 120959)
+++ zope.app.wsgi/trunk/src/zope/app/wsgi/testlayer.txt	2011-03-15 22:41:30 UTC (rev 120960)
@@ -10,6 +10,12 @@
     ...     IndexView,
     ...     checker.NamesChecker(['browserDefault', '__call__']),
     ...     )
+    >>> from zope.app.wsgi.testing import ErrorRaisingView
+    >>> component.provideAdapter(ErrorRaisingView, name='error.html')
+    >>> checker.defineChecker(
+    ...     ErrorRaisingView,
+    ...     checker.NamesChecker(['browserDefault', '__call__']),
+    ...     )
 
 The `silly middleware` has injected information into the page:
 
@@ -25,6 +31,33 @@
       </body>
     </html>
 
+The default behavior of the browser is to handle errors::
+
+    >>> browser.open('http://localhost/error.html')
+    Traceback (most recent call last):
+    ...
+    HTTPError: HTTP Error 500: Internal Server Error
+
+One can set error handling behavior::
+
+    >>> browser.handleErrors = False
+    >>> browser.open('http://localhost/error.html')
+    Traceback (most recent call last):
+    ...
+    ZeroDivisionError: integer division or modulo by zero
+
+The http caller is more low level than the Browser.
+It exposes the same error handling parameter::
+
+    >>> from zope.app.wsgi.testlayer import http
+    >>> response = http('GET /error.html HTTP/1.1')
+    >>> response.getStatus() == 500
+    True
+    >>> http('GET /error.html HTTP/1.1', handle_errors=False)
+    Traceback (most recent call last):
+    ...
+    ZeroDivisionError: integer division or modulo by zero
+
 Clean up:
 
     >>> import zope.publisher.interfaces.browser
@@ -36,3 +69,11 @@
     ...     zope.publisher.interfaces.browser.IBrowserPublisher,
     ...     'index.html',
     ...     )
+    >>> checker.undefineChecker(ErrorRaisingView)
+    >>> component.provideAdapter(
+    ...     None,
+    ...     (interface.Interface,
+    ...     zope.publisher.interfaces.browser.IBrowserRequest),
+    ...     zope.publisher.interfaces.browser.IBrowserPublisher,
+    ...     'error.html',
+    ...     )



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