feat(tools): 2.0 phase 5 wave 3a - video depth (22 tools) (#221)

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

@@ -0,0 +1,23 @@
+import { resolveFontFile } from "@snapotter/media-engine";
+import { describe, expect, it } from "vitest";
+
+describe("resolveFontFile", () => {
+  it("honors SNAPOTTER_FONT_FILE + SNAPOTTER_FONT_FAMILY", () => {
+    process.env.SNAPOTTER_FONT_FILE = "/tmp/some.ttf";
+    process.env.SNAPOTTER_FONT_FAMILY = "Some Family";
+    try {
+      const f = resolveFontFile();
+      expect(f).toEqual({ file: "/tmp/some.ttf", family: "Some Family" });
+    } finally {
+      delete process.env.SNAPOTTER_FONT_FILE;
+      delete process.env.SNAPOTTER_FONT_FAMILY;
+    }
+  });
+
+  it("falls back to a real candidate on this machine", () => {
+    const f = resolveFontFile();
+    expect(f).not.toBeNull();
+    expect(f?.file.length).toBeGreaterThan(0);
+    expect(f?.family.length).toBeGreaterThan(0);
+  });
+});