Document how to create Blobs (#95)

readme.md

@@ -184,6 +184,17 @@ const {body: readableStream} = await fetch('https://example.com');
 console.log(await getStream(readableStream.pipeThrough(textDecoderStream)));
 ```
 
+### Blobs
+
+[`getStreamAsArrayBuffer()`](#getstreamasarraybufferstream-options) can be used to create [Blobs](https://developer.mozilla.org/en-US/docs/Web/API/Blob).
+
+```js
+import {getStreamAsArrayBuffer} from 'get-stream';
+
+const stream = fs.createReadStream('unicorn.txt');
+console.log(new Blob([await getStreamAsArrayBuffer(stream)]));
+```
+
 ## FAQ
 
 ### How is this different from [`concat-stream`](https://github.com/maxogden/concat-stream)?

test.js

@@ -1,11 +1,11 @@
-import {Buffer, constants as BufferConstants} from 'node:buffer';
+import {Buffer, constants as BufferConstants, Blob} from 'node:buffer';
 import {setTimeout} from 'node:timers/promises';
 import {spawn} from 'node:child_process';
 import {createReadStream} from 'node:fs';
 import {open, opendir} from 'node:fs/promises';
 import {version as nodeVersion} from 'node:process';
 import {Duplex} from 'node:stream';
-import {text, buffer, arrayBuffer} from 'node:stream/consumers';
+import {text, buffer, arrayBuffer, blob} from 'node:stream/consumers';
 import test from 'ava';
 import getStream, {getStreamAsBuffer, getStreamAsArrayBuffer, getStreamAsArray, MaxBufferError} from './index.js';
 
@@ -438,6 +438,14 @@ test.serial('getStreamAsArrayBuffer() behaves like arrayBuffer()', async t => {
 	t.deepEqual(nativeResult, customResult);
 });
 
+test.serial('getStreamAsArrayBuffer() can behave like blob()', async t => {
+	const [nativeResult, customResult] = await Promise.all([
+		blob(createStream([bigArrayBuffer])),
+		setupArrayBuffer([bigArrayBuffer]),
+	]);
+	t.deepEqual(nativeResult, new Blob([customResult]));
+});
+
 test.serial('getStreamAsArray() behaves like readable.toArray()', async t => {
 	const [nativeResult, customResult] = await Promise.all([
 		createStream([bigArray]).toArray(),