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author | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
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committer | Matt A. Tobin <mattatobin@localhost.localdomain> | 2018-02-02 04:16:08 -0500 |
commit | 5f8de423f190bbb79a62f804151bc24824fa32d8 (patch) | |
tree | 10027f336435511475e392454359edea8e25895d /devtools/client/shared/shim/test/prefs-wrapper.js | |
parent | 49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff) | |
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Add m-esr52 at 52.6.0
Diffstat (limited to 'devtools/client/shared/shim/test/prefs-wrapper.js')
-rw-r--r-- | devtools/client/shared/shim/test/prefs-wrapper.js | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/devtools/client/shared/shim/test/prefs-wrapper.js b/devtools/client/shared/shim/test/prefs-wrapper.js new file mode 100644 index 000000000..057e12d17 --- /dev/null +++ b/devtools/client/shared/shim/test/prefs-wrapper.js @@ -0,0 +1,80 @@ +/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */ +/* vim: set ts=2 et sw=2 tw=80: */ +/* 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/. */ + +// A wrapper for Services.prefs that compares our shim content +// implementation with the real service. + +// We assume we're loaded in a global where Services was already loaded. +/* globals isDeeply, Services */ + +"use strict"; + +function setMethod(methodName, prefName, value) { + let savedException; + let prefThrew = false; + try { + Services.prefs[methodName](prefName, value); + } catch (e) { + prefThrew = true; + savedException = e; + } + + let realThrew = false; + try { + SpecialPowers[methodName](prefName, value); + } catch (e) { + realThrew = true; + savedException = e; + } + + is(prefThrew, realThrew, methodName + " [throw check]"); + if (prefThrew || realThrew) { + throw savedException; + } +} + +function getMethod(methodName, prefName) { + let prefThrew = false; + let prefValue = undefined; + let savedException; + try { + prefValue = Services.prefs[methodName](prefName); + } catch (e) { + prefThrew = true; + savedException = e; + } + + let realValue = undefined; + let realThrew = false; + try { + realValue = SpecialPowers[methodName](prefName); + } catch (e) { + realThrew = true; + savedException = e; + } + + is(prefThrew, realThrew, methodName + " [throw check]"); + isDeeply(prefValue, realValue, methodName + " [equality]"); + if (prefThrew || realThrew) { + throw savedException; + } + + return prefValue; +} + +var WrappedPrefs = {}; + +for (let method of ["getPrefType", "getBoolPref", "getCharPref", "getIntPref", + "clearUserPref"]) { + WrappedPrefs[method] = getMethod.bind(null, method); +} + +for (let method of ["setBoolPref", "setCharPref", "setIntPref"]) { + WrappedPrefs[method] = setMethod.bind(null, method); +} + +// Silence eslint. +exports.WrappedPrefs = WrappedPrefs; |