feat(modality)!: SnapOtter 2.0 phase 3 modality framework: media/doc engines, pool routing, display modes (#218)

tests/unit/media-engine/encoders.test.ts

@@ -0,0 +1,30 @@
+import { resolveEncoder } from "@snapotter/media-engine";
+import { afterEach, describe, expect, it } from "vitest";
+
+const ORIGINAL = process.env.SNAPOTTER_HW_ACCEL;
+afterEach(() => {
+  if (ORIGINAL === undefined) delete process.env.SNAPOTTER_HW_ACCEL;
+  else process.env.SNAPOTTER_HW_ACCEL = ORIGINAL;
+});
+
+describe("resolveEncoder", () => {
+  it("defaults to software encoders", () => {
+    delete process.env.SNAPOTTER_HW_ACCEL;
+    expect(resolveEncoder("h264")).toBe("libx264");
+    expect(resolveEncoder("hevc")).toBe("libx265");
+    expect(resolveEncoder("av1")).toBe("libsvtav1");
+    expect(resolveEncoder("aac")).toBe("aac");
+  });
+
+  it("maps nvenc when SNAPOTTER_HW_ACCEL=nvenc", () => {
+    process.env.SNAPOTTER_HW_ACCEL = "nvenc";
+    expect(resolveEncoder("h264")).toBe("h264_nvenc");
+    expect(resolveEncoder("hevc")).toBe("hevc_nvenc");
+    expect(resolveEncoder("aac")).toBe("aac"); // audio unaffected
+  });
+
+  it("falls back to software for unknown accel values", () => {
+    process.env.SNAPOTTER_HW_ACCEL = "quantum";
+    expect(resolveEncoder("h264")).toBe("libx264");
+  });
+});