Add Vitest suite and fix wrapped local import restore

tests/inject.spec.js

@@ -0,0 +1,141 @@
+const { afterEach, describe, expect, it, vi } = require("vitest");
+const {
+  createChromeMock,
+  evaluateScript,
+  flushAsyncWork,
+  loadHtmlString
+} = require("./helpers/extension-test-utils");
+
+function bootInject(options) {
+  const config = options || {};
+
+  loadHtmlString("<!doctype html><html><body></body></html>");
+
+  const chrome = createChromeMock({
+    syncData: config.syncData,
+    localData: config.localData
+  });
+
+  global.chrome = chrome;
+  window.chrome = chrome;
+  window.requestIdleCallback = (callback, opts) =>
+    setTimeout(
+      () =>
+        callback({
+          didTimeout: false,
+          timeRemaining() {
+            return 1;
+          }
+        }),
+      (opts && opts.timeout) || 0
+    );
+  window.cancelIdleCallback = (id) => clearTimeout(id);
+
+  evaluateScript("ui-icons.js");
+  evaluateScript("inject.js");
+
+  return chrome;
+}
+
+describe("inject.js helper logic", () => {
+  afterEach(() => {
+    vi.useRealTimers();
+    vi.unstubAllGlobals();
+    delete global.chrome;
+  });
+
+  it("normalizes bindings from legacy formats", async () => {
+    bootInject();
+    await flushAsyncWork(3);
+
+    expect(
+      window.normalizeStoredBinding({
+        action: "faster",
+        key: "g",
+        value: 1.8,
+        force: false
+      }).code
+    ).toBe("KeyG");
+
+    expect(
+      window.normalizeStoredBinding({
+        action: "pause",
+        code: null,
+        key: null,
+        keyCode: null,
+        value: 0
+      })
+    ).toEqual({
+      action: "pause",
+      code: null,
+      disabled: true,
+      value: 0,
+      force: "false",
+      predefined: false
+    });
+
+    expect(window.defaultKeyBindings({ speedStep: 0.25, rewindTime: 5 })[0]).toEqual(
+      {
+        action: "slower",
+        code: "KeyS",
+        value: 0.25,
+        force: false,
+        predefined: true
+      }
+    );
+  });
+
+  it("clamps controller margins and ignores stale source-specific target speeds", async () => {
+    bootInject();
+    await flushAsyncWork(3);
+
+    expect(window.normalizeControllerMarginPx(250, 0)).toBe(200);
+    expect(window.normalizeControllerMarginPx(-5, 65)).toBe(0);
+    expect(window.normalizeControllerMarginPx("bad", 65)).toBe(65);
+
+    const staleVideo = {
+      currentSrc: "fresh.mp4",
+      vsc: {
+        targetSpeed: 1.75,
+        targetSpeedSourceKey: "old.mp4"
+      }
+    };
+
+    expect(window.getControllerTargetSpeed(staleVideo)).toBeNull();
+
+    window.tc.settings.rememberSpeed = true;
+    window.tc.settings.forceLastSavedSpeed = false;
+    window.tc.settings.lastSpeed = 1.3;
+    window.tc.settings.speeds = { "fresh.mp4": 1.6 };
+
+    expect(window.getRememberedSpeed({ currentSrc: "fresh.mp4" })).toBe(1.6);
+    expect(window.getDesiredSpeed(staleVideo)).toBe(1.6);
+  });
+
+  it("applies site rule overrides and detects disabled sites", async () => {
+    bootInject();
+    await flushAsyncWork(3);
+
+    window.tc.settings.siteRules = [{ pattern: "localhost", enabled: false }];
+    window.captureSiteRuleBase();
+    expect(window.applySiteRuleOverrides()).toBe(true);
+
+    window.resetSettingsFromSiteRuleBase();
+    window.tc.settings.siteRules = [
+      {
+        pattern: "localhost",
+        controllerLocation: "bottom-left",
+        controllerMarginTop: 300,
+        controllerMarginBottom: -10,
+        rememberSpeed: true
+      }
+    ];
+    window.captureSiteRuleBase();
+
+    expect(window.applySiteRuleOverrides()).toBe(false);
+    expect(window.tc.settings.controllerLocation).toBe("bottom-left");
+    expect(window.tc.settings.controllerMarginTop).toBe(200);
+    expect(window.tc.settings.controllerMarginBottom).toBe(0);
+    expect(window.tc.settings.rememberSpeed).toBe(true);
+  });
+});