Ku6epXBOCTuK/easy-png-tools2
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test: add download mime, quality verification

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Ku6epXBOCTuK
2026-09-26 03:33:09 +05:00
parent 746d6a6c8f
commit 712fd3cb2e
10 changed files with 181 additions and 33 deletions
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web/e2e/pipeline.spec.ts
+52 -11
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@@ -1,4 +1,3 @@
import { readFile } from "node:fs/promises";
import { unzipSync } from "fflate";
import { expect, test } from "playwright/test";
import {
@@ -9,8 +8,7 @@ import {
opaquePng,
} from "./helpers/fixtures";
import {
downloadResult,
downloadResultFile,
downloadResultBytes,
errorAlert,
expectNoErrorAlert,
expectNoErrors,
@@ -58,17 +56,62 @@ test("flip-png: full flow - upload, result, download", async ({ page }) => {
await openTool(page, "flip-png");
await uploadImage(page, landscapePng);
await expect(resultImage(page)).toBeVisible();
expect(await downloadResult(page)).toBe("flip-png.png");
const { name, bytes } = await downloadResultBytes(page);
expect(name).toBe("flip-png.png");
expect(Array.from(bytes.subarray(0, 8))).toEqual([
137, 80, 78, 71, 13, 10, 26, 10,
]);
await expectNoErrorAlert(page);
expectNoErrors(sink);
});
test("convert-png-to-jpg: produces a downloadable jpg", async ({ page }) => {
test("convert-png-to-jpg: produces JPEG and quality affects size", async ({
page,
}) => {
const sink = trackErrors(page);
await openTool(page, "convert-png-to-jpg");
await uploadImage(page, largePng);
await expect(resultImage(page)).toBeVisible();
const quality = rangeInput(page, "Quality");
await quality.fill("10");
const low = await downloadResultBytes(page);
expect(low.name).toBe("convert-png-to-jpg.jpg");
expect(Array.from(low.bytes.subarray(0, 3))).toEqual([255, 216, 255]);
await quality.fill("90");
const high = await downloadResultBytes(page);
expect(high.bytes.length).toBeGreaterThan(low.bytes.length);
await expectNoErrorAlert(page);
expectNoErrors(sink);
});
test("convert-png-to-webp: produces WebP and quality affects size", async ({
page,
}) => {
const sink = trackErrors(page);
await openTool(page, "convert-png-to-webp");
await uploadImage(page, largePng);
await expect(resultImage(page)).toBeVisible();
const quality = rangeInput(page, "Quality");
await quality.fill("10");
const low = await downloadResultBytes(page);
expect(low.name).toBe("convert-png-to-webp.webp");
expect(Array.from(low.bytes.subarray(0, 4))).toEqual([82, 73, 70, 70]);
expect(Array.from(low.bytes.subarray(8, 12))).toEqual([87, 69, 66, 80]);
await quality.fill("90");
const high = await downloadResultBytes(page);
expect(high.bytes.length).toBeGreaterThan(low.bytes.length);
await expectNoErrorAlert(page);
expectNoErrors(sink);
});
test("png-to-bmp: produces a BMP download", async ({ page }) => {
const sink = trackErrors(page);
await openTool(page, "png-to-bmp");
await uploadImage(page, opaquePng);
await expect(resultImage(page)).toBeVisible();
expect(await downloadResult(page)).toBe("convert-png-to-jpg.jpg");
const { name, bytes } = await downloadResultBytes(page);
expect(name).toBe("png-to-bmp.bmp");
expect(Array.from(bytes.subarray(0, 2))).toEqual([66, 77]);
await expectNoErrorAlert(page);
expectNoErrors(sink);
});
@@ -102,11 +145,9 @@ test("split-into-parts-png downloads a zip with named PNG parts", async ({
await rangeInput(page, "Rows").fill("2");
await expect(page.getByText("part-1-3.png")).toBeVisible();
const download = await downloadResultFile(page);
expect(download.suggestedFilename()).toBe("split-into-parts-png.zip");
const path = await download.path();
if (!path) throw new Error("download path is unavailable");
const entries = unzipSync(new Uint8Array(await readFile(path)));
const { name, bytes } = await downloadResultBytes(page);
expect(name).toBe("split-into-parts-png.zip");
const entries = unzipSync(bytes);
expect(Object.keys(entries)).toEqual([
"part-1-1.png",