feat: unit tests for buildArgs and Notify

test/unit/buildArgs.test.js

@@ -0,0 +1,182 @@
+const path = require("path");
+
+jest.mock("../../server/helpers/getBrowser.helpers.js", () =>
+    jest.fn(() => "firefox")
+);
+
+jest.mock("../../server/helpers/path.helpers.js", () => ({
+    ffmpegPath: "/mock/ffmpeg",
+    denoPath: "/mock/deno",
+}));
+
+jest.mock("../../config.js", () => ({
+    configFeatures: {
+        autoUpdate: false,
+        discordRPC: false,
+        customTopBar: false,
+        autoCheckInfo: false,
+        addThumbnail: true,
+        addMetadata: true,
+        verboseLogs: false,
+        autoDownloadPlaylist: false,
+        customCodec: "h264",
+    },
+}));
+
+jest.mock("../../server/logger.js", () => ({
+    logger: {
+        info: jest.fn(),
+        error: jest.fn(),
+    },
+}));
+
+const { buildYtDlpArgs } = require("../../server/helpers/buildArgs.helpers");
+const { configFeatures } = require("../../config");
+const { logger } = require("../../server/logger");
+
+describe("buildYtDlpArgs", () => {
+    beforeEach(() => {
+        jest.clearAllMocks();
+    });
+
+    test("builds default video arguments", () => {
+        const args = buildYtDlpArgs({
+            url: "https://youtube.com/watch?v=123",
+            audioOnly: false,
+            quality: "best",
+            outputFolder: "/downloads",
+        });
+
+        expect(args).toContain("--cookies-from-browser");
+        expect(args).toContain("firefox");
+
+        expect(args).toContain("--ffmpeg-location");
+        expect(args).toContain("/mock/ffmpeg");
+
+        expect(args).toContain("--js-runtimes");
+        expect(args).toContain("deno:/mock/deno");
+
+        expect(args).toContain("--merge-output");
+        expect(args).toContain("mp4");
+
+        expect(args).toContain("-f");
+        expect(args).toContain("bestvideo+bestaudio/best/mp4");
+
+        expect(args).toContain(
+            path.join("/downloads", "%(title)s.%(ext)s")
+        );
+
+        expect(args.at(-1)).toBe("https://youtube.com/watch?v=123");
+    });
+
+    test("builds audio-only arguments", () => {
+        const args = buildYtDlpArgs({
+            url: "https://youtube.com/watch?v=123",
+            audioOnly: true,
+            quality: "best",
+            outputFolder: "/downloads",
+        });
+
+        expect(args).toContain("--extract-audio");
+        expect(args).toContain("--audio-format");
+        expect(args).toContain("mp3");
+        expect(args).toContain("bestaudio");
+
+        expect(args).not.toContain("--merge-output");
+    });
+
+    test("uses requested quality", () => {
+        const args = buildYtDlpArgs({
+            url: "https://youtube.com/watch?v=123",
+            audioOnly: false,
+            quality: "720",
+            outputFolder: "/downloads",
+        });
+
+        expect(args).toContain(
+            "bestvideo[height<=720]+bestaudio/best[height<=720]/mp4"
+        );
+    });
+
+    test("falls back to best for unknown quality", () => {
+        const args = buildYtDlpArgs({
+            url: "https://youtube.com/watch?v=123",
+            audioOnly: false,
+            quality: "unknown",
+            outputFolder: "/downloads",
+        });
+
+        expect(args).toContain("best");
+    });
+
+    test("uses --no-playlist by default", () => {
+        const args = buildYtDlpArgs({
+            url: "https://youtube.com/watch?v=123",
+            audioOnly: false,
+            quality: "best",
+            outputFolder: "/downloads",
+        });
+
+        expect(args).toContain("--no-playlist");
+        expect(args).not.toContain("--yes-playlist");
+    });
+
+    test("uses --yes-playlist when enabled", () => {
+        configFeatures.autoDownloadPlaylist = true;
+
+        const args = buildYtDlpArgs({
+            url: "https://youtube.com/watch?v=123",
+            audioOnly: false,
+            quality: "best",
+            outputFolder: "/downloads",
+        });
+
+        expect(args).toContain("--yes-playlist");
+        expect(args).not.toContain("--no-playlist");
+
+        configFeatures.autoDownloadPlaylist = false;
+    });
+
+    test("embeds thumbnail and metadata when enabled", () => {
+        const args = buildYtDlpArgs({
+            url: "https://youtube.com/watch?v=123",
+            audioOnly: false,
+            quality: "best",
+            outputFolder: "/downloads",
+        });
+
+        expect(args).toContain("--embed-thumbnail");
+        expect(args).toContain("--add-metadata");
+    });
+
+    test("logs codec validation", () => {
+        buildYtDlpArgs({
+            url: "https://youtube.com/watch?v=123",
+            audioOnly: false,
+            quality: "best",
+            outputFolder: "/downloads",
+        });
+
+        expect(logger.info).toHaveBeenCalledWith("Codec Valid: h264");
+    });
+
+    test("falls back to h264 when codec is invalid", () => {
+        configFeatures.customCodec = "invalid";
+
+        const args = buildYtDlpArgs({
+            url: "https://youtube.com/watch?v=123",
+            audioOnly: false,
+            quality: "best",
+            outputFolder: "/downloads",
+        });
+
+        expect(logger.error).toHaveBeenCalledWith(
+            "Codec not valid: invalid. Using default codec"
+        );
+
+        const sortIndex = args.indexOf("-S");
+        expect(args[sortIndex + 1]).toContain("vcodec:h264");
+
+        configFeatures.customCodec = "h264";
+    });
+});