gecko-dev/testing/xpcshell/selftest.py

276 lines
9.4 KiB
Python

#!/usr/bin/env python
#
# Any copyright is dedicated to the Public Domain.
# http://creativecommons.org/publicdomain/zero/1.0/
#
from __future__ import with_statement
import sys, os, unittest, tempfile, shutil
from StringIO import StringIO
from xml.etree.ElementTree import ElementTree
from runxpcshelltests import XPCShellTests
objdir = os.path.abspath(os.environ["OBJDIR"])
xpcshellBin = os.path.join(objdir, "dist", "bin", "xpcshell")
if sys.platform == "win32":
xpcshellBin += ".exe"
SIMPLE_PASSING_TEST = "function run_test() { do_check_true(true); }"
SIMPLE_FAILING_TEST = "function run_test() { do_check_true(false); }"
class XPCShellTestsTests(unittest.TestCase):
"""
Yes, these are unit tests for a unit test harness.
"""
def setUp(self):
self.log = StringIO()
self.tempdir = tempfile.mkdtemp()
self.x = XPCShellTests(log=self.log)
def tearDown(self):
shutil.rmtree(self.tempdir)
def writeFile(self, name, contents):
"""
Write |contents| to a file named |name| in the temp directory,
and return the full path to the file.
"""
fullpath = os.path.join(self.tempdir, name)
with open(fullpath, "w") as f:
f.write(contents)
return fullpath
def writeManifest(self, tests):
"""
Write an xpcshell.ini in the temp directory and set
self.manifest to its pathname. |tests| is a list containing
either strings (for test names), or tuples with a test name
as the first element and manifest conditions as the following
elements.
"""
testlines = []
for t in tests:
testlines.append("[%s]" % (t if isinstance(t, basestring)
else t[0]))
if isinstance(t, tuple):
testlines.extend(t[1:])
self.manifest = self.writeFile("xpcshell.ini", """
[DEFAULT]
head =
tail =
""" + "\n".join(testlines))
def assertTestResult(self, expected, shuffle=False, xunitFilename=None):
"""
Assert that self.x.runTests with manifest=self.manifest
returns |expected|.
"""
self.assertEquals(expected,
self.x.runTests(xpcshellBin,
manifest=self.manifest,
mozInfo={},
shuffle=shuffle,
testsRootDir=self.tempdir,
xunitFilename=xunitFilename),
msg="""Tests should have %s, log:
========
%s
========
""" % ("passed" if expected else "failed", self.log.getvalue()))
def _assertLog(self, s, expected):
l = self.log.getvalue()
self.assertEqual(expected, s in l,
msg="""Value %s %s in log:
========
%s
========""" % (s, "expected" if expected else "not expected", l))
def assertInLog(self, s):
"""
Assert that the string |s| is contained in self.log.
"""
self._assertLog(s, True)
def assertNotInLog(self, s):
"""
Assert that the string |s| is not contained in self.log.
"""
self._assertLog(s, False)
def testPass(self):
"""
Check that a simple test without any manifest conditions passes.
"""
self.writeFile("test_basic.js", SIMPLE_PASSING_TEST)
self.writeManifest(["test_basic.js"])
self.assertTestResult(True)
self.assertEquals(1, self.x.testCount)
self.assertEquals(1, self.x.passCount)
self.assertEquals(0, self.x.failCount)
self.assertEquals(0, self.x.todoCount)
self.assertInLog("TEST-PASS")
self.assertNotInLog("TEST-UNEXPECTED-FAIL")
def testFail(self):
"""
Check that a simple failing test without any manifest conditions fails.
"""
self.writeFile("test_basic.js", SIMPLE_FAILING_TEST)
self.writeManifest(["test_basic.js"])
self.assertTestResult(False)
self.assertEquals(1, self.x.testCount)
self.assertEquals(0, self.x.passCount)
self.assertEquals(1, self.x.failCount)
self.assertEquals(0, self.x.todoCount)
self.assertInLog("TEST-UNEXPECTED-FAIL")
self.assertNotInLog("TEST-PASS")
def testPassFail(self):
"""
Check that running more than one test works.
"""
self.writeFile("test_pass.js", SIMPLE_PASSING_TEST)
self.writeFile("test_fail.js", SIMPLE_FAILING_TEST)
self.writeManifest(["test_pass.js", "test_fail.js"])
self.assertTestResult(False)
self.assertEquals(2, self.x.testCount)
self.assertEquals(1, self.x.passCount)
self.assertEquals(1, self.x.failCount)
self.assertEquals(0, self.x.todoCount)
self.assertInLog("TEST-PASS")
self.assertInLog("TEST-UNEXPECTED-FAIL")
def testSkip(self):
"""
Check that a simple failing test skipped in the manifest does
not cause failure.
"""
self.writeFile("test_basic.js", SIMPLE_FAILING_TEST)
self.writeManifest([("test_basic.js", "skip-if = true")])
self.assertTestResult(True)
self.assertEquals(1, self.x.testCount)
self.assertEquals(0, self.x.passCount)
self.assertEquals(0, self.x.failCount)
self.assertEquals(0, self.x.todoCount)
self.assertNotInLog("TEST-UNEXPECTED-FAIL")
self.assertNotInLog("TEST-PASS")
def testKnownFail(self):
"""
Check that a simple failing test marked as known-fail in the manifest
does not cause failure.
"""
self.writeFile("test_basic.js", SIMPLE_FAILING_TEST)
self.writeManifest([("test_basic.js", "fail-if = true")])
self.assertTestResult(True)
self.assertEquals(1, self.x.testCount)
self.assertEquals(0, self.x.passCount)
self.assertEquals(0, self.x.failCount)
self.assertEquals(1, self.x.todoCount)
self.assertInLog("TEST-KNOWN-FAIL")
# This should be suppressed because the harness doesn't include
# the full log from the xpcshell run when things pass.
self.assertNotInLog("TEST-UNEXPECTED-FAIL")
self.assertNotInLog("TEST-PASS")
def testUnexpectedPass(self):
"""
Check that a simple failing test marked as known-fail in the manifest
that passes causes an unexpected pass.
"""
self.writeFile("test_basic.js", SIMPLE_PASSING_TEST)
self.writeManifest([("test_basic.js", "fail-if = true")])
self.assertTestResult(False)
self.assertEquals(1, self.x.testCount)
self.assertEquals(0, self.x.passCount)
self.assertEquals(1, self.x.failCount)
self.assertEquals(0, self.x.todoCount)
# From the outer (Python) harness
self.assertInLog("TEST-UNEXPECTED-PASS")
self.assertNotInLog("TEST-KNOWN-FAIL")
# From the inner (JS) harness
self.assertInLog("TEST-PASS")
def testReturnNonzero(self):
"""
Check that a test where xpcshell returns nonzero fails.
"""
self.writeFile("test_error.js", "throw 'foo'")
self.writeManifest(["test_error.js"])
self.assertTestResult(False)
self.assertEquals(1, self.x.testCount)
self.assertEquals(0, self.x.passCount)
self.assertEquals(1, self.x.failCount)
self.assertEquals(0, self.x.todoCount)
self.assertInLog("TEST-UNEXPECTED-FAIL")
self.assertNotInLog("TEST-PASS")
def testRandomExecution(self):
"""
Check that random execution doesn't break.
"""
manifest = []
for i in range(0, 10):
filename = "test_pass_%d.js" % i
self.writeFile(filename, SIMPLE_PASSING_TEST)
manifest.append(filename)
self.writeManifest(manifest)
self.assertTestResult(True, shuffle=True)
self.assertEquals(10, self.x.testCount)
self.assertEquals(10, self.x.passCount)
def testXunitOutput(self):
"""
Check that Xunit XML files are written.
"""
self.writeFile("test_00.js", SIMPLE_PASSING_TEST)
self.writeFile("test_01.js", SIMPLE_FAILING_TEST)
self.writeFile("test_02.js", SIMPLE_PASSING_TEST)
manifest = [
"test_00.js",
"test_01.js",
("test_02.js", "skip-if = true")
]
self.writeManifest(manifest)
filename = os.path.join(self.tempdir, "xunit.xml")
self.assertTestResult(False, xunitFilename=filename)
self.assertTrue(os.path.exists(filename))
self.assertTrue(os.path.getsize(filename) > 0)
tree = ElementTree()
tree.parse(filename)
suite = tree.getroot()
self.assertTrue(suite is not None)
self.assertEqual(suite.get("tests"), "3")
self.assertEqual(suite.get("failures"), "1")
self.assertEqual(suite.get("skip"), "1")
testcases = suite.findall("testcase")
self.assertEqual(len(testcases), 3)
for testcase in testcases:
attributes = testcase.keys()
self.assertTrue("classname" in attributes)
self.assertTrue("name" in attributes)
self.assertTrue("time" in attributes)
self.assertTrue(testcases[1].find("failure") is not None)
self.assertTrue(testcases[2].find("skipped") is not None)
if __name__ == "__main__":
unittest.main()