webextension-polyfill/test/fixtures/devtools-extension/content.js

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test("devtools.inspectedWindow.eval resolved with an error result", {
timeout: 5000,
}, async (t) => {
const {evalResult} = await browser.runtime.sendMessage({
apiMethod: "devtools.inspectedWindow.eval",
params: ["throw new Error('fake error');"],
});
t.ok(Array.isArray(evalResult), "devtools.inspectedWindow.eval should resolve to an array");
t.equal(evalResult[0], navigator.userAgent.includes("Firefox/") ? undefined : null,
"the first element should be null (on chrome) or undefined (on firefox)");
t.ok(evalResult[1].isException, "the second element should represent an exception");
t.ok(evalResult[1].value && evalResult[1].value.includes("fake error"),
"the second element value property should include the expected error message");
});
test("devtools.inspectedWindow.eval resolved without an error result", {
timeout: 5000,
}, async (t) => {
const {evalResult} = await browser.runtime.sendMessage({
apiMethod: "devtools.inspectedWindow.eval",
params: ["[document.documentElement.localName]"],
});
t.ok(Array.isArray(evalResult), "devtools.inspectedWindow.eval should resolve to an array");
if (navigator.userAgent.includes("Firefox/")) {
t.deepEqual(evalResult, [["html"], undefined], "got the expected values in the array");
} else {
t.deepEqual(evalResult, [["html"]], "got the expected values in the array");
}
});