async function testBlobText(blob, content) { let text = await blob.text(); is(text, content, "blob.text()"); } async function testBlobArrayBuffer(blob, content) { let ab = await blob.arrayBuffer(); is(ab.byteLength, content.length, "blob.arrayBuffer()"); } async function testBlobStream(blob, content) { let s = await blob.stream(); ok(s instanceof ReadableStream, "We have a ReadableStream"); let data = await s.getReader().read(); ok(!data.done, "Nothing is done yet"); for (let i = 0; i < data.value.length; ++i) { is(String.fromCharCode(data.value[i]), content[i], "blob.stream() - " + i); } } function workify(func, blob, content) { info("Workifying " + func); return new Promise((resolve, reject) => { let worker = new Worker("worker_blob_reading.js"); worker.postMessage({ func, blob, content }); worker.onmessage = function (e) { if (e.data.type == "done") { resolve(); return; } if (e.data.type == "error") { reject(e.data.message); return; } if (e.data.type == "test") { ok(e.data.test, e.data.message); return; } if (e.data.type == "info") { info(e.data.message); } }; }); }