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# Library for JSTest manifests.
#
# This includes classes for representing and parsing JS manifests.
import os, re, sys
from subprocess import *
from tests import TestCase
class XULInfo:
def __init__(self, abi, os, isdebug):
self.abi = abi
self.os = os
self.isdebug = isdebug
def as_js(self):
"""Return JS that when executed sets up variables so that JS expression
predicates on XUL build info evaluate properly."""
return 'var xulRuntime = { OS: "%s", XPCOMABI: "%s", shell: true }; var isDebugBuild=%s;' % (
self.os,
self.abi,
str(self.isdebug).lower())
@classmethod
def create(cls, jsdir):
"""Create a XULInfo based on the current platform's characteristics."""
# Our strategy is to find the autoconf.mk generated for the build and
# read the values from there.
# Find config/autoconf.mk.
dir = jsdir
while True:
path = os.path.join(dir, 'config/autoconf.mk')
if os.path.isfile(path):
break
if os.path.dirname(dir) == dir:
print "Can't find config/autoconf.mk on a directory containing the JS shell (searched from %s)"%jsdir
sys.exit(1)
dir = os.path.dirname(dir)
# Read the values.
val_re = re.compile(r'(TARGET_XPCOM_ABI|OS_TARGET|MOZ_DEBUG)\s*=\s*(.*)')
kw = {}
for line in open(path):
m = val_re.match(line)
if m:
key, val = m.groups()
val = val.rstrip()
if key == 'TARGET_XPCOM_ABI':
kw['abi'] = val
if key == 'OS_TARGET':
kw['os'] = val
if key == 'MOZ_DEBUG':
kw['isdebug'] = (val == '1')
return cls(**kw)
class XULInfoTester:
def __init__(self, xulinfo, js_bin):
self.js_prolog = xulinfo.as_js()
self.js_bin = js_bin
# Maps JS expr to evaluation result.
self.cache = {}
def test(self, cond):
"""Test a XUL predicate condition against this local info."""
ans = self.cache.get(cond, None)
if ans is None:
cmd = [ self.js_bin, '-e', self.js_prolog, '-e', 'print(!!(%s))'%cond ]
p = Popen(cmd, stdin=PIPE, stdout=PIPE, stderr=PIPE)
out, err = p.communicate()
if out in ('true\n', 'true\r\n'):
ans = True
elif out in ('false\n', 'false\r\n'):
ans = False
else:
raise Exception("Failed to test XUL condition '%s'"%cond)
self.cache[cond] = ans
return ans
class NullXULInfoTester:
"""Can be used to parse manifests without a JS shell."""
def test(self, cond):
return False
def parse(filename, xul_tester, reldir = ''):
ans = []
comment_re = re.compile(r'#.*')
dir = os.path.dirname(filename)
try:
f = open(filename)
except IOError:
print "warning: include file not found: '%s'"%filename
return ans
for line in f:
sline = comment_re.sub('', line)
parts = sline.split()
if len(parts) == 0:
# line is empty or just a comment, skip
pass
elif parts[0] == 'include':
include_file = parts[1]
include_reldir = os.path.join(reldir, os.path.dirname(include_file))
ans += parse(os.path.join(dir, include_file), xul_tester, include_reldir)
elif parts[0] == 'url-prefix':
# Doesn't apply to shell tests
pass
else:
script = None
enable = True
expect = True
random = False
slow = False
pos = 0
while pos < len(parts):
if parts[pos] == 'fails':
expect = False
pos += 1
elif parts[pos] == 'skip':
expect = enable = False
pos += 1
elif parts[pos] == 'random':
random = True
pos += 1
elif parts[pos].startswith('fails-if'):
cond = parts[pos][len('fails-if('):-1]
if xul_tester.test(cond):
expect = False
pos += 1
elif parts[pos].startswith('asserts-if'):
# This directive means we may flunk some number of
# NS_ASSERTIONs in the browser. For the shell, ignore it.
pos += 1
elif parts[pos].startswith('skip-if'):
cond = parts[pos][len('skip-if('):-1]
if xul_tester.test(cond):
expect = enable = False
pos += 1
elif parts[pos].startswith('random-if'):
cond = parts[pos][len('random-if('):-1]
if xul_tester.test(cond):
random = True
pos += 1
elif parts[pos] == 'script':
script = parts[pos+1]
pos += 2
elif parts[pos] == 'slow':
slow = True
pos += 1
elif parts[pos] == 'silentfail':
# silentfails use tons of memory, and Darwin doesn't support ulimit.
if xul_tester.test("xulRuntime.OS == 'Darwin'"):
expect = enable = False
pos += 1
else:
print 'warning: invalid manifest line element "%s"'%parts[pos]
pos += 1
assert script is not None
ans.append(TestCase(os.path.join(reldir, script),
enable, expect, random, slow))
return ans
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