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| -rwxr-xr-x | testing/mozbase/mozprofile/tests/test_preferences.py | 419 |
1 files changed, 419 insertions, 0 deletions
diff --git a/testing/mozbase/mozprofile/tests/test_preferences.py b/testing/mozbase/mozprofile/tests/test_preferences.py new file mode 100755 index 0000000000..95d26f189c --- /dev/null +++ b/testing/mozbase/mozprofile/tests/test_preferences.py @@ -0,0 +1,419 @@ +#!/usr/bin/env python + +# This Source Code Form is subject to the terms of the Mozilla Public +# License, v. 2.0. If a copy of the MPL was not distributed with this file, +# You can obtain one at http://mozilla.org/MPL/2.0/. + +import os +import shutil +import tempfile + +import mozfile +import mozunit +import pytest +from mozprofile.cli import MozProfileCLI +from mozprofile.prefs import Preferences, PreferencesReadError +from mozprofile.profile import Profile +from wptserve import server + +here = os.path.dirname(os.path.abspath(__file__)) + + +# preferences from files/prefs_with_comments.js +_prefs_with_comments = { + "browser.startup.homepage": "http://planet.mozilla.org", + "zoom.minPercent": 30, + "zoom.maxPercent": 300, + "webgl.verbose": "false", +} + + +@pytest.fixture +def run_command(): + """ + invokes mozprofile command line via the CLI factory + - args : command line arguments (equivalent of sys.argv[1:]) + """ + + def inner(*args): + # instantiate the factory + cli = MozProfileCLI(list(args)) + + # create the profile + profile = cli.profile() + + # return path to profile + return profile.profile + + return inner + + +@pytest.fixture +def compare_generated(run_command): + """ + writes out to a new profile with mozprofile command line + reads the generated preferences with prefs.py + compares the results + cleans up + """ + + def inner(prefs, commandline): + profile = run_command(*commandline) + prefs_file = os.path.join(profile, "user.js") + assert os.path.exists(prefs_file) + read = Preferences.read_prefs(prefs_file) + if isinstance(prefs, dict): + read = dict(read) + assert prefs == read + shutil.rmtree(profile) + + return inner + + +def test_basic_prefs(compare_generated): + """test setting a pref from the command line entry point""" + + _prefs = {"browser.startup.homepage": "http://planet.mozilla.org/"} + commandline = [] + for pref, value in _prefs.items(): + commandline += ["--pref", "%s:%s" % (pref, value)] + compare_generated(_prefs, commandline) + + +def test_ordered_prefs(compare_generated): + """ensure the prefs stay in the right order""" + _prefs = [ + ("browser.startup.homepage", "http://planet.mozilla.org/"), + ("zoom.minPercent", 30), + ("zoom.maxPercent", 300), + ("webgl.verbose", "false"), + ] + commandline = [] + for pref, value in _prefs: + commandline += ["--pref", "%s:%s" % (pref, value)] + _prefs = [(i, Preferences.cast(j)) for i, j in _prefs] + compare_generated(_prefs, commandline) + + +def test_ini(compare_generated): + # write the .ini file + _ini = """[DEFAULT] +browser.startup.homepage = http://planet.mozilla.org/ + +[foo] +browser.startup.homepage = http://github.com/ +""" + try: + fd, name = tempfile.mkstemp(suffix=".ini", text=True) + os.write(fd, _ini.encode()) + os.close(fd) + commandline = ["--preferences", name] + + # test the [DEFAULT] section + _prefs = {"browser.startup.homepage": "http://planet.mozilla.org/"} + compare_generated(_prefs, commandline) + + # test a specific section + _prefs = {"browser.startup.homepage": "http://github.com/"} + commandline[-1] = commandline[-1] + ":foo" + compare_generated(_prefs, commandline) + + finally: + # cleanup + os.remove(name) + + +def test_ini_keep_case(compare_generated): + """ + Read a preferences config file with a preference in camel-case style. + Check that the read preference name has not been lower-cased + """ + # write the .ini file + _ini = """[DEFAULT] +network.dns.disableIPv6 = True +""" + try: + fd, name = tempfile.mkstemp(suffix=".ini", text=True) + os.write(fd, _ini.encode()) + os.close(fd) + commandline = ["--preferences", name] + + # test the [DEFAULT] section + _prefs = {"network.dns.disableIPv6": "True"} + compare_generated(_prefs, commandline) + + finally: + # cleanup + os.remove(name) + + +def test_reset_should_remove_added_prefs(): + """Check that when we call reset the items we expect are updated""" + profile = Profile() + prefs_file = os.path.join(profile.profile, "user.js") + + # we shouldn't have any initial preferences + initial_prefs = Preferences.read_prefs(prefs_file) + assert not initial_prefs + initial_prefs = open(prefs_file).read().strip() + assert not initial_prefs + + # add some preferences + prefs1 = [("mr.t.quotes", "i aint getting on no plane!")] + profile.set_preferences(prefs1) + assert prefs1 == Preferences.read_prefs(prefs_file) + lines = open(prefs_file).read().strip().splitlines() + assert any(line.startswith("#MozRunner Prefs Start") for line in lines) + assert any(line.startswith("#MozRunner Prefs End") for line in lines) + + profile.reset() + assert prefs1 != Preferences.read_prefs(os.path.join(profile.profile, "user.js")) + + +def test_reset_should_keep_user_added_prefs(): + """Check that when we call reset the items we expect are updated""" + profile = Profile() + prefs_file = os.path.join(profile.profile, "user.js") + + # we shouldn't have any initial preferences + initial_prefs = Preferences.read_prefs(prefs_file) + assert not initial_prefs + initial_prefs = open(prefs_file).read().strip() + assert not initial_prefs + + # add some preferences + prefs1 = [("mr.t.quotes", "i aint getting on no plane!")] + profile.set_persistent_preferences(prefs1) + assert prefs1 == Preferences.read_prefs(prefs_file) + lines = open(prefs_file).read().strip().splitlines() + assert any(line.startswith("#MozRunner Prefs Start") for line in lines) + assert any(line.startswith("#MozRunner Prefs End") for line in lines) + + profile.reset() + assert prefs1 == Preferences.read_prefs(os.path.join(profile.profile, "user.js")) + + +def test_magic_markers(): + """ensure our magic markers are working""" + + profile = Profile() + prefs_file = os.path.join(profile.profile, "user.js") + + # we shouldn't have any initial preferences + initial_prefs = Preferences.read_prefs(prefs_file) + assert not initial_prefs + initial_prefs = open(prefs_file).read().strip() + assert not initial_prefs + + # add some preferences + prefs1 = [ + ("browser.startup.homepage", "http://planet.mozilla.org/"), + ("zoom.minPercent", 30), + ] + profile.set_preferences(prefs1) + assert prefs1 == Preferences.read_prefs(prefs_file) + lines = open(prefs_file).read().strip().splitlines() + assert bool([line for line in lines if line.startswith("#MozRunner Prefs Start")]) + assert bool([line for line in lines if line.startswith("#MozRunner Prefs End")]) + + # add some more preferences + prefs2 = [("zoom.maxPercent", 300), ("webgl.verbose", "false")] + profile.set_preferences(prefs2) + assert prefs1 + prefs2 == Preferences.read_prefs(prefs_file) + lines = open(prefs_file).read().strip().splitlines() + assert ( + len([line for line in lines if line.startswith("#MozRunner Prefs Start")]) == 2 + ) + assert len([line for line in lines if line.startswith("#MozRunner Prefs End")]) == 2 + + # now clean it up + profile.clean_preferences() + final_prefs = Preferences.read_prefs(prefs_file) + assert not final_prefs + lines = open(prefs_file).read().strip().splitlines() + assert "#MozRunner Prefs Start" not in lines + assert "#MozRunner Prefs End" not in lines + + +def test_preexisting_preferences(): + """ensure you don't clobber preexisting preferences""" + + # make a pretend profile + tempdir = tempfile.mkdtemp() + + try: + # make a user.js + contents = """ +user_pref("webgl.enabled_for_all_sites", true); +user_pref("webgl.force-enabled", true); +""" + user_js = os.path.join(tempdir, "user.js") + f = open(user_js, "w") + f.write(contents) + f.close() + + # make sure you can read it + prefs = Preferences.read_prefs(user_js) + original_prefs = [ + ("webgl.enabled_for_all_sites", True), + ("webgl.force-enabled", True), + ] + assert prefs == original_prefs + + # now read this as a profile + profile = Profile( + tempdir, preferences={"browser.download.dir": "/home/jhammel"} + ) + + # make sure the new pref is now there + new_prefs = original_prefs[:] + [("browser.download.dir", "/home/jhammel")] + prefs = Preferences.read_prefs(user_js) + assert prefs == new_prefs + + # clean up the added preferences + profile.cleanup() + del profile + + # make sure you have the original preferences + prefs = Preferences.read_prefs(user_js) + assert prefs == original_prefs + finally: + shutil.rmtree(tempdir) + + +def test_can_read_prefs_with_multiline_comments(): + """ + Ensure that multiple comments in the file header do not break reading + the prefs (https://bugzilla.mozilla.org/show_bug.cgi?id=1233534). + """ + user_js = tempfile.NamedTemporaryFile(suffix=".js", delete=False) + try: + with user_js: + user_js.write( + """ +# Mozilla User Preferences + +/* Do not edit this file. +* +* If you make changes to this file while the application is running, +* the changes will be overwritten when the application exits. +* +* To make a manual change to preferences, you can visit the URL about:config +*/ + +user_pref("webgl.enabled_for_all_sites", true); +user_pref("webgl.force-enabled", true); +""".encode() + ) + assert Preferences.read_prefs(user_js.name) == [ + ("webgl.enabled_for_all_sites", True), + ("webgl.force-enabled", True), + ] + finally: + mozfile.remove(user_js.name) + + +def test_json(compare_generated): + _prefs = {"browser.startup.homepage": "http://planet.mozilla.org/"} + json = '{"browser.startup.homepage": "http://planet.mozilla.org/"}' + + # just repr it...could use the json module but we don't need it here + with mozfile.NamedTemporaryFile(suffix=".json") as f: + f.write(json.encode()) + f.flush() + + commandline = ["--preferences", f.name] + compare_generated(_prefs, commandline) + + +def test_json_datatypes(): + # minPercent is at 30.1 to test if non-integer data raises an exception + json = """{"zoom.minPercent": 30.1, "zoom.maxPercent": 300}""" + + with mozfile.NamedTemporaryFile(suffix=".json") as f: + f.write(json.encode()) + f.flush() + + with pytest.raises(PreferencesReadError): + Preferences.read_json(f._path) + + +def test_prefs_write(): + """test that the Preferences.write() method correctly serializes preferences""" + + _prefs = { + "browser.startup.homepage": "http://planet.mozilla.org", + "zoom.minPercent": 30, + "zoom.maxPercent": 300, + } + + # make a Preferences manager with the testing preferences + preferences = Preferences(_prefs) + + # write them to a temporary location + path = None + read_prefs = None + try: + with mozfile.NamedTemporaryFile(suffix=".js", delete=False, mode="w+t") as f: + path = f.name + preferences.write(f, _prefs) + + # read them back and ensure we get what we put in + read_prefs = dict(Preferences.read_prefs(path)) + + finally: + # cleanup + if path and os.path.exists(path): + os.remove(path) + + assert read_prefs == _prefs + + +def test_read_prefs_with_comments(): + """test reading preferences from a prefs.js file that contains comments""" + + path = os.path.join(here, "files", "prefs_with_comments.js") + assert dict(Preferences.read_prefs(path)) == _prefs_with_comments + + +def test_read_prefs_with_interpolation(): + """test reading preferences from a prefs.js file whose values + require interpolation""" + + expected_prefs = { + "browser.foo": "http://server-name", + "zoom.minPercent": 30, + "webgl.verbose": "false", + "browser.bar": "somethingxyz", + } + values = {"server": "server-name", "abc": "something"} + path = os.path.join(here, "files", "prefs_with_interpolation.js") + read_prefs = Preferences.read_prefs(path, interpolation=values) + assert dict(read_prefs) == expected_prefs + + +def test_read_prefs_ttw(): + """test reading preferences through the web via wptserve""" + + # create a WebTestHttpd instance + docroot = os.path.join(here, "files") + host = "127.0.0.1" + port = 8888 + httpd = server.WebTestHttpd(host=host, port=port, doc_root=docroot) + + # create a preferences instance + prefs = Preferences() + + try: + # start server + httpd.start() + + # read preferences through the web + read = prefs.read_prefs("http://%s:%d/prefs_with_comments.js" % (host, port)) + assert dict(read) == _prefs_with_comments + finally: + httpd.stop() + + +if __name__ == "__main__": + mozunit.main() |