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/* Any copyright is dedicated to the Public Domain.
* http://creativecommons.org/publicdomain/zero/1.0/ */
"use strict";
// ------------------------------------------------------------------------------
// Requirements
// ------------------------------------------------------------------------------
var rule = require("../lib/rules/balanced-observers");
var RuleTester = require("eslint").RuleTester;
const ruleTester = new RuleTester({ parserOptions: { ecmaVersion: "latest" } });
// ------------------------------------------------------------------------------
// Tests
// ------------------------------------------------------------------------------
function error(code, observable) {
return {
code,
errors: [
{
messageId: "noCorresponding",
type: "Identifier",
data: { observable },
},
],
};
}
ruleTester.run("balanced-observers", rule, {
valid: [
"Services.obs.addObserver(observer, 'observable');" +
"Services.obs.removeObserver(observer, 'observable');",
"Services.prefs.addObserver('preference.name', otherObserver);" +
"Services.prefs.removeObserver('preference.name', otherObserver);",
],
invalid: [
error(
// missing Services.obs.removeObserver
"Services.obs.addObserver(observer, 'observable');",
"observable"
),
error(
// wrong observable name for Services.obs.removeObserver
"Services.obs.addObserver(observer, 'observable');" +
"Services.obs.removeObserver(observer, 'different-observable');",
"observable"
),
error(
// missing Services.prefs.removeObserver
"Services.prefs.addObserver('preference.name', otherObserver);",
"preference.name"
),
error(
// wrong observable name for Services.prefs.removeObserver
"Services.prefs.addObserver('preference.name', otherObserver);" +
"Services.prefs.removeObserver('other.preference', otherObserver);",
"preference.name"
),
error(
// mismatch Services.prefs vs Services.obs
"Services.obs.addObserver(observer, 'observable');" +
"Services.prefs.removeObserver(observer, 'observable');",
"observable"
),
error(
"Services.prefs.addObserver('preference.name', otherObserver);" +
// mismatch Services.prefs vs Services.obs
"Services.obs.removeObserver('preference.name', otherObserver);",
"preference.name"
),
],
});
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