chore: add tests for readBarcodes input

package.json

@@ -191,6 +191,7 @@
     "@babel/types": "^7.26.9",
     "@biomejs/biome": "1.9.4",
     "@changesets/cli": "^2.28.1",
+    "@napi-rs/canvas": "^0.1.67",
     "@types/babel__core": "^7.20.5",
     "@types/node": "^22.13.5",
     "@vitest/ui": "^3.0.6",

tests/unit.test.ts

@@ -1,9 +1,16 @@
-import { afterAll, describe, expect, test, vi } from "vitest";
+import { readFile } from "node:fs/promises";
+import { resolve } from "node:path";
+import { fileURLToPath } from "node:url";
+import { createCanvas, loadImage } from "@napi-rs/canvas";
+import { afterAll, beforeAll, describe, expect, test, vi } from "vitest";
 import {
   prepareZXingModule as prepareZXingFullModule,
   purgeZXingModule as purgeZXingFullModule,
 } from "../src/full/index.js";
-import { prepareZXingModule as prepareZXingReaderModule } from "../src/reader/index.js";
+import {
+  prepareZXingModule as prepareZXingReaderModule,
+  readBarcodes,
+} from "../src/reader/index.js";
 
 describe("prepare zxing module", () => {
   const consoleMock = vi.spyOn(console, "error").mockImplementation(() => {});
@@ -178,3 +185,62 @@ describe("prepare zxing module", () => {
     expect(modulePromise2).toBe(modulePromise3);
   });
 });
+
+describe("readBarcodes input", async () => {
+  const arrayBuffer = await readFile(
+    fileURLToPath(new URL("./samples/qrcode/wikipedia.png", import.meta.url)),
+  );
+
+  beforeAll(async () => {
+    await prepareZXingReaderModule({
+      overrides: {
+        wasmBinary: (
+          await readFile(
+            resolve(import.meta.dirname, "../src/reader/zxing_reader.wasm"),
+          )
+        ).buffer as ArrayBuffer,
+      },
+      fireImmediately: true,
+    });
+  });
+
+  test("readBarcodes accepts ArrayBuffer as input", async () => {
+    const readResult = await readBarcodes(arrayBuffer);
+    expect(readResult).length(1);
+    expect(readResult[0].text).toBe("http://en.m.wikipedia.org");
+  });
+
+  test("readBarcodes accepts Blob as input", async () => {
+    const blob = new Blob([arrayBuffer], { type: "image/png" });
+    const readResult = await readBarcodes(blob);
+    expect(readResult).length(1);
+    expect(readResult[0].text).toBe("http://en.m.wikipedia.org");
+  });
+
+  test("readBarcodes accepts File as input", async () => {
+    const file = new File([arrayBuffer], "wikipedia.png", {
+      type: "image/png",
+    });
+    const readResult = await readBarcodes(file);
+    expect(readResult).length(1);
+    expect(readResult[0].text).toBe("http://en.m.wikipedia.org");
+  });
+
+  test("readBarcodes accepts Uint8Array as input", async () => {
+    const uint8Array = new Uint8Array(arrayBuffer);
+    const readResult = await readBarcodes(uint8Array);
+    expect(readResult).length(1);
+    expect(readResult[0].text).toBe("http://en.m.wikipedia.org");
+  });
+
+  test("readBarcodes accepts ImageData as input", async () => {
+    const image = await loadImage(arrayBuffer);
+    const canvas = createCanvas(image.width, image.height);
+    const context = canvas.getContext("2d");
+    context.drawImage(image, 0, 0, image.width, image.height);
+    const imageData = context.getImageData(0, 0, image.width, image.height);
+    const readResult = await readBarcodes(imageData);
+    expect(readResult).length(1);
+    expect(readResult[0].text).toBe("http://en.m.wikipedia.org");
+  });
+});