mozilla-central/toolkit/components/extensions/test/xpcshell/test_ext_contentscript_json_api.js (file symbol)

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Test Info: Warnings

"use strict";
Services.prefs.setBoolPref("extensions.manifestV3.enabled", true);
const server = createHttpServer({ hosts: ["example.com"] });
server.registerPathHandler("/dummy", (request, response) => {
response.setStatusLine(request.httpVersion, 200, "OK");
response.write(
`<script>
// Clobber the JSON API to allow us to confirm that the page's value for
// the "JSON" object does not affect the content script's JSON API.
window.JSON = new String("overridden by page");
window.objFromPage = { serializeMe: "thanks" };
window.objWithToJSON = { toJSON: () => "toJSON ran", should_not_see: 1 };
</script>
`
);
});
async function test_JSON_parse_and_stringify({ manifest_version }) {
let extension = ExtensionTestUtils.loadExtension({
temporarilyInstalled: true, // Needed for granted_host_permissions
manifest: {
manifest_version,
granted_host_permissions: true, // Test-only: grant permissions in MV3.
host_permissions: ["http://example.com/"], // Work-around for bug 1766752.
content_scripts: [
{
matches: ["http://example.com/dummy"],
run_at: "document_end",
js: ["contentscript.js"],
},
],
},
files: {
"contentscript.js"() {
let json = `{"a":[123,true,null]}`;
browser.test.assertEq(
JSON.stringify({ a: [123, true, null] }),
json,
"JSON.stringify with basic values"
);
let parsed = JSON.parse(json);
browser.test.assertTrue(
parsed instanceof Object,
"Parsed JSON is an Object"
);
browser.test.assertTrue(
parsed.a instanceof Array,
"Parsed JSON has an Array"
);
browser.test.assertEq(
JSON.stringify(parsed),
json,
"JSON.stringify for parsed JSON returns original input"
);
browser.test.assertEq(
JSON.stringify({ toJSON: () => "overridden", hideme: true }),
`"overridden"`,
"JSON.parse with toJSON method"
);
browser.test.assertEq(
JSON.stringify(window.wrappedJSObject.objFromPage),
`{"serializeMe":"thanks"}`,
"JSON.parse with value from the page"
);
browser.test.assertEq(
JSON.stringify(window.wrappedJSObject.objWithToJSON),
`"toJSON ran"`,
"JSON.parse with object with toJSON method from the page"
);
browser.test.assertTrue(JSON === globalThis.JSON, "JSON === this.JSON");
browser.test.assertTrue(JSON === window.JSON, "JSON === window.JSON");
browser.test.assertEq(
"overridden by page",
window.wrappedJSObject.JSON.toString(),
"page's JSON object is still the original value (overridden by page)"
);
browser.test.sendMessage("done");
},
},
});
await extension.startup();
let contentPage = await ExtensionTestUtils.loadContentPage(
);
await extension.awaitMessage("done");
await contentPage.close();
await extension.unload();
}
add_task(async function test_JSON_apis_MV2() {
await test_JSON_parse_and_stringify({ manifest_version: 2 });
});
add_task(async function test_JSON_apis_MV3() {
await test_JSON_parse_and_stringify({ manifest_version: 3 });
});