feat: continued enforce mode implementation

GazeTests/Services/EyeTrackingServiceTests.swift

@@ -0,0 +1,39 @@
+//
+//  EyeTrackingServiceTests.swift
+//  GazeTests
+//
+//  Created by Mike Freno on 1/13/26.
+//
+
+import XCTest
+@testable import Gaze
+
+@MainActor
+final class EyeTrackingServiceTests: XCTestCase {
+    var eyeTrackingService: EyeTrackingService!
+    
+    override func setUp() async throws {
+        eyeTrackingService = EyeTrackingService.shared
+    }
+    
+    override func tearDown() async throws {
+        eyeTrackingService.stopEyeTracking()
+    }
+    
+    func testEyeTrackingServiceInitialization() {
+        XCTAssertNotNil(eyeTrackingService)
+        XCTAssertFalse(eyeTrackingService.isEyeTrackingActive)
+        XCTAssertFalse(eyeTrackingService.isEyesClosed)
+        XCTAssertTrue(eyeTrackingService.userLookingAtScreen)
+        XCTAssertFalse(eyeTrackingService.faceDetected)
+    }
+    
+    func testStopEyeTrackingResetsState() {
+        eyeTrackingService.stopEyeTracking()
+        
+        XCTAssertFalse(eyeTrackingService.isEyeTrackingActive)
+        XCTAssertFalse(eyeTrackingService.isEyesClosed)
+        XCTAssertTrue(eyeTrackingService.userLookingAtScreen)
+        XCTAssertFalse(eyeTrackingService.faceDetected)
+    }
+}