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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/use-chromeutils-generateqi");
var RuleTester = require("eslint").RuleTester;
const ruleTester = new RuleTester({ parserOptions: { ecmaVersion: "latest" } });
// ------------------------------------------------------------------------------
// Tests
// ------------------------------------------------------------------------------
function callError(message) {
return [{ message, type: "CallExpression" }];
}
function error(message, type) {
return [{ message, type }];
}
const MSG_NO_JS_QUERY_INTERFACE =
"Please use ChromeUtils.generateQI rather than manually creating " +
"JavaScript QueryInterface functions";
const MSG_NO_XPCOMUTILS_GENERATEQI =
"Please use ChromeUtils.generateQI instead of XPCOMUtils.generateQI";
/* globals nsIFlug */
function QueryInterface(iid) {
if (
iid.equals(Ci.nsISupports) ||
iid.equals(Ci.nsIMeh) ||
iid.equals(nsIFlug) ||
iid.equals(Ci.amIFoo)
) {
return this;
}
throw Components.Exception("", Cr.NS_ERROR_NO_INTERFACE);
}
ruleTester.run("use-chromeutils-generateqi", rule, {
valid: [
`X.prototype.QueryInterface = ChromeUtils.generateQI(["nsIMeh"]);`,
`X.prototype = { QueryInterface: ChromeUtils.generateQI(["nsIMeh"]) }`,
],
invalid: [
{
code: `X.prototype.QueryInterface = XPCOMUtils.generateQI(["nsIMeh"]);`,
output: `X.prototype.QueryInterface = ChromeUtils.generateQI(["nsIMeh"]);`,
errors: callError(MSG_NO_XPCOMUTILS_GENERATEQI),
},
{
code: `X.prototype = { QueryInterface: XPCOMUtils.generateQI(["nsIMeh"]) };`,
output: `X.prototype = { QueryInterface: ChromeUtils.generateQI(["nsIMeh"]) };`,
errors: callError(MSG_NO_XPCOMUTILS_GENERATEQI),
},
{
code: `X.prototype = { QueryInterface: ${QueryInterface} };`,
output: `X.prototype = { QueryInterface: ChromeUtils.generateQI(["nsIMeh", "nsIFlug", "amIFoo"]) };`,
errors: error(MSG_NO_JS_QUERY_INTERFACE, "Property"),
},
{
code: `X.prototype = { ${String(QueryInterface).replace(
/^function /,
""
)} };`,
output: `X.prototype = { QueryInterface: ChromeUtils.generateQI(["nsIMeh", "nsIFlug", "amIFoo"]) };`,
errors: error(MSG_NO_JS_QUERY_INTERFACE, "Property"),
},
{
code: `X.prototype.QueryInterface = ${QueryInterface};`,
output: `X.prototype.QueryInterface = ChromeUtils.generateQI(["nsIMeh", "nsIFlug", "amIFoo"]);`,
errors: error(MSG_NO_JS_QUERY_INTERFACE, "AssignmentExpression"),
},
],
});
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