feat(tests): add new test case for string concatenation using readabl…

…eStreamToText

Added a new test case to the `iterable-to-readable-stream.spec.ts` file to cover the scenario of concatenating strings from an iterable into a single text. The test case utilizes the `readableStreamToText` utility from `bun` alongside the existing `iterableToReadableStream` function to achieve this. This addition ensures that the conversion of an iterable of string elements into a readable stream, followed by the concatenation of these streamed elements into a single string text, works as expected. The test is essential for verifying the functionality of streaming string data, particularly in scenarios where data is dynamically generated or fetched in parts.

src/iterable-to-readable-stream.spec.ts

@@ -1,6 +1,6 @@
 import { test, expect } from "bun:test";
 import { iterableToReadableStream } from "./iterable-to-readable-stream";
-import { readableStreamToArray } from "bun";
+import { readableStreamToArray, readableStreamToText } from "bun";
 
 test("", async () => {
   const iterable = [1, 2, 3];
@@ -37,3 +37,14 @@ test("", async () => {
 
   expect(items).toEqual([1, 2, 3]);
 });
+
+test("", async () => {
+  const iterable = function* () {
+    yield "Hello ";
+    yield "world!";
+  };
+
+  const text = await readableStreamToText(iterableToReadableStream(iterable()));
+
+  expect(text).toEqual("Hello world!");
+});