feat(canvas): 图片编辑 - 合并打光预设与镜头参数控制

web/test/camera-prompt-library.test.ts

@@ -0,0 +1,31 @@
+import { describe, expect, test } from "bun:test";
+
+import { APERTURES, CAMERA_PROFILES, FOCAL_LENGTHS, LENS_PROFILES, buildCameraPrompt } from "../src/lib/canvas/camera-prompt-library";
+
+describe("camera prompt contract", () => {
+    test("builds a deterministic prompt from registered camera parameters", () => {
+        const prompt = buildCameraPrompt({
+            cameraId: CAMERA_PROFILES[0].id,
+            lensId: LENS_PROFILES[0].id,
+            focalLengthMm: FOCAL_LENGTHS[0],
+            apertureF: APERTURES[0],
+        });
+
+        expect(prompt).toContain(CAMERA_PROFILES[0].shortTag);
+        expect(prompt).toContain(LENS_PROFILES[0].shortTag);
+    });
+
+    test("rejects unknown persisted parameters instead of silently changing generation semantics", () => {
+        const valid = {
+            cameraId: CAMERA_PROFILES[0].id,
+            lensId: LENS_PROFILES[0].id,
+            focalLengthMm: FOCAL_LENGTHS[0],
+            apertureF: APERTURES[0],
+        };
+
+        expect(() => buildCameraPrompt({ ...valid, cameraId: "unknown-camera" })).toThrow("不支持的相机配置");
+        expect(() => buildCameraPrompt({ ...valid, lensId: "unknown-lens" })).toThrow("不支持的镜头配置");
+        expect(() => buildCameraPrompt({ ...valid, focalLengthMm: 47 })).toThrow("不支持的焦距");
+        expect(() => buildCameraPrompt({ ...valid, apertureF: 3.2 })).toThrow("不支持的光圈");
+    });
+});