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authorMartin Pool <mbp@samba.org>2003-03-12 03:06:42 +0000
committerMartin Pool <mbp@samba.org>2003-03-12 03:06:42 +0000
commit57b68013e170e290292cf23bb2259dfb09259d2d (patch)
tree92a3e9a40c0a99420cf19c7f4f5bec7bbdf2bc0b
parentffd5eae60eaae186d93f37537cc3cb4d5d446c83 (diff)
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Import ComfyChair framework from trunk.
(This used to be commit a7fb1fcc72ffe3cc2aa9c5abfcbd8197e7610167)
-rw-r--r--source3/stf/comfychair.py266
1 files changed, 266 insertions, 0 deletions
diff --git a/source3/stf/comfychair.py b/source3/stf/comfychair.py
new file mode 100644
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+++ b/source3/stf/comfychair.py
@@ -0,0 +1,266 @@
+#! /usr/bin/env python
+
+# Copyright (C) 2002, 2003 by Martin Pool <mbp@samba.org>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License as
+# published by the Free Software Foundation; either version 2 of the
+# License, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+# USA
+
+"""comfychair: a Python-based instrument of software torture.
+
+Copyright (C) 2002, 2003 by Martin Pool <mbp@samba.org>
+
+This is a test framework designed for testing programs written in
+Python, or (through a fork/exec interface) any other language. It is
+similar in design to the very nice 'svntest' system used by
+Subversion, but has no Subversion-specific features.
+
+It is somewhat similar to PyUnit, except:
+
+ - it allows capture of detailed log messages from a test, to be
+ optionally displayed if the test fails.
+
+ - it allows execution of a specified subset of tests
+
+ - it avoids Java idioms that are not so useful in Python
+
+WRITING TESTS:
+
+ Each test case is a callable object, typically a function. Its
+ documentation string describes the test, and the first line of the
+ docstring should be a brief name.
+
+ The test should return 0 for pass, or non-zero for failure.
+ Alternatively they may raise an exception.
+
+ Tests may import this "comfychair" module to get some useful
+ utilities, but that is not strictly required.
+
+"""
+
+# TODO: Put everything into a temporary directory?
+
+# TODO: Have a means for tests to customize the display of their
+# failure messages. In particular, if a shell command failed, then
+# give its stderr.
+
+import sys, re
+
+class TestCase:
+ """A base class for tests. This class defines required functions which
+ can optionally be overridden by subclasses. It also provides some
+ utility functions for"""
+
+ def __init__(self):
+ self.test_log = ""
+ self.background_pids = []
+
+ def setUp(self):
+ """Set up test fixture."""
+ pass
+
+ def tearDown(self):
+ """Tear down test fixture."""
+ pass
+
+ def runTest(self):
+ """Run the test."""
+ pass
+
+ def fail(self, reason = ""):
+ """Say the test failed."""
+ raise AssertionError(reason)
+
+ def assert_(self, expr, reason = ""):
+ if not expr:
+ raise AssertionError(reason)
+
+ def assert_re_match(self, pattern, s):
+ """Assert that a string matches a particular pattern
+
+ Inputs:
+ pattern string: regular expression
+ s string: to be matched
+
+ Raises:
+ AssertionError if not matched
+ """
+ if not re.match(pattern, s):
+ raise AssertionError("string %s does not match regexp %s" % (`s`, `pattern`))
+
+ def assert_regexp(self, pattern, s):
+ """Assert that a string *contains* a particular pattern
+
+ Inputs:
+ pattern string: regular expression
+ s string: to be searched
+
+ Raises:
+ AssertionError if not matched
+ """
+ if not re.search(pattern, s):
+ raise AssertionError("string %s does not contain regexp %s" % (`s`, `pattern`))
+
+
+ def assert_no_file(self, filename):
+ import os.path
+ assert not os.path.exists(filename), ("file exists but should not: %s" % filename)
+
+
+ def runCmdNoWait(self, cmd):
+ import os
+ name = cmd[0]
+ self.test_log = self.test_log + "Run in background:\n" + `cmd` + "\n"
+ pid = os.spawnvp(os.P_NOWAIT, name, cmd)
+ self.test_log = self.test_log + "pid: %d\n" % pid
+ return pid
+
+
+ def runCmd(self, cmd, expectedResult = 0):
+ """Run a command, fail if the command returns an unexpected exit
+ code. Return the output produced."""
+ rc, output = self.runCmdUnchecked(cmd)
+ if rc != expectedResult:
+ raise AssertionError("command returned %d; expected %s: \"%s\"" %
+ (rc, expectedResult, cmd))
+
+ return output
+
+ def runCmdUnchecked(self, cmd, skip_on_noexec = 0):
+ """Invoke a command; return (exitcode, stdout)"""
+ import os, popen2
+ pobj = popen2.Popen4(cmd)
+ output = pobj.fromchild.read()
+ waitstatus = pobj.wait()
+ assert not os.WIFSIGNALED(waitstatus), \
+ ("%s terminated with signal %d", cmd, os.WTERMSIG(waitstatus))
+ rc = os.WEXITSTATUS(waitstatus)
+ self.test_log = self.test_log + ("""Run command: %s
+Wait status: %#x
+Output:
+%s""" % (cmd, waitstatus, output))
+ if skip_on_noexec and rc == 127:
+ # Either we could not execute the command or the command
+ # returned exit code 127. According to system(3) we can't
+ # tell the difference.
+ raise NotRunError, "could not execute %s" % cmd
+ return rc, output
+
+ def explainFailure(self, exc_info = None):
+ import traceback
+ # Move along, nothing to see here
+ if not exc_info and self.test_log == "":
+ return
+ print "-----------------------------------------------------------------"
+ if exc_info:
+ traceback.print_exc(file=sys.stdout)
+ print self.test_log
+ print "-----------------------------------------------------------------"
+
+ def require(self, predicate, message):
+ """Check a predicate for running this test.
+
+If the predicate value is not true, the test is skipped with a message explaining
+why."""
+ if not predicate:
+ raise NotRunError, message
+
+ def require_root(self):
+ """Skip this test unless run by root."""
+ import os
+ self.require(os.getuid() == 0,
+ "must be root to run this test")
+
+ def log(self, msg):
+ """Log a message to the test log. This message is displayed if
+ the test fails, or when the runtests function is invoked with
+ the verbose option."""
+ self.test_log = self.test_log + msg + "\n"
+
+class NotRunError(Exception):
+ def __init__(self, value = None):
+ self.value = value
+
+def test_name(test):
+ """Return a human-readable name for a test.
+
+ Inputs:
+ test some kind of callable test object
+
+ Returns:
+ name string: a short printable name
+ """
+ try:
+ return test.__name__
+ except:
+ return `test`
+
+def runtests(test_list, verbose = 0):
+ """Run a series of tests.
+
+ Eventually, this routine will also examine sys.argv[] to handle
+ extra options.
+
+ Inputs:
+ test_list sequence of callable test objects
+
+ Returns:
+ unix return code: 0 for success, 1 for failures, 2 for test failure
+ """
+ import traceback
+ ret = 0
+ for test in test_list:
+ print "%-60s" % test_name(test),
+ # flush now so that long running tests are easier to follow
+ sys.stdout.flush()
+
+ try:
+ try: # run test and show result
+ obj = test()
+ if hasattr(obj, "setUp"):
+ obj.setUp()
+ obj.runTest()
+ print "OK"
+ except KeyboardInterrupt:
+ print "INTERRUPT"
+ obj.explainFailure(sys.exc_info())
+ ret = 2
+ break
+ except NotRunError, msg:
+ print "NOTRUN, %s" % msg.value
+ except:
+ print "FAIL"
+ obj.explainFailure(sys.exc_info())
+ ret = 1
+ finally:
+ try:
+ if hasattr(obj, "tearDown"):
+ obj.tearDown()
+ except KeyboardInterrupt:
+ print "interrupted during tearDown"
+ obj.explainFailure(sys.exc_info())
+ ret = 2
+ break
+ except:
+ print "error during tearDown"
+ obj.explainFailure(sys.exc_info())
+ ret = 1
+ # Display log file if we're verbose
+ if ret == 0 and verbose:
+ obj.explainFailure()
+
+ return ret
+
+if __name__ == '__main__':
+ print __doc__