增加2.5模型调用

tests/evolink-image-client.test.ts

@@ -30,6 +30,61 @@ describe("EvoLink image client helpers", () => {
     });
   });
 
+  it.each(["gpt-image-2.5-flare", "gpt-image-2.5-sunburst"])("selects %s for a single 1K image", (model) => {
+    const payload = buildEvolinkImagePayload("image.generate", {
+      prompt: "商品海报",
+      model,
+      quality: "high"
+    }, { baseUrl: "https://api.evolink.ai", model: "gpt-image-2" });
+
+    expect(payload).toMatchObject({ model, quality: "high", n: 1, resolution: "1K", size: "1:1" });
+    expect(buildEvolinkImagePayload("image.generate", {
+      prompt: "商品海报",
+      model
+    }, { baseUrl: "https://api.evolink.ai", model: "gpt-image-2" }).quality).toBe("medium");
+  });
+
+  it("rejects arbitrary models supplied by a caller but preserves a configured default model", () => {
+    const settings = { baseUrl: "https://api.evolink.ai", model: "custom-image-model" };
+    expect(() => buildEvolinkImagePayload("image.generate", { prompt: "海报", model: "arbitrary-model" }, settings))
+      .toThrow("Unsupported EvoLink image model.");
+    expect(buildEvolinkImagePayload("image.generate", { prompt: "海报" }, settings).model).toBe("custom-image-model");
+    expect(buildEvolinkImagePayload("image.generate", { prompt: "海报", model: "custom-image-model" }, settings).model).toBe("custom-image-model");
+  });
+
+  it.each([
+    [{ quality: 1 }, "quality"],
+    [{ quality: "ultra" }, "quality"],
+    [{ resolution: "2K" }, "resolution"],
+    [{ n: 2 }, "n"],
+    [{ imageCount: 2 }, "imageCount"],
+    [{ size: "2048x2048" }, "size"],
+    [{ width: 3504, height: 2400 }, "dimensions"],
+    [{ width: 1000, height: 992 }, "dimensions"],
+    [{ width: 1200 }, "both width and height"],
+    [{ force_single: false }, "force_single"],
+    [{ settings: { resolution: "2K" } }, "resolution"],
+    [{ settings: { n: 2 } }, "n"],
+    [{ imageUrls: Array(17).fill("https://example.com/ref.png") }, "16 reference images"]
+  ])("rejects invalid Image 2.5 input %j", (invalid, reason) => {
+    expect(() => buildEvolinkImagePayload("image.generate", { prompt: "海报", model: "gpt-image-2.5-flare", ...invalid }, {
+      baseUrl: "https://api.evolink.ai", model: "gpt-image-2"
+    })).toThrow(reason);
+  });
+
+  it("rejects an invalid configured quality for Image 2.5", () => {
+    expect(() => buildEvolinkImagePayload("image.generate", { prompt: "海报", model: "gpt-image-2.5-flare" }, {
+      baseUrl: "https://api.evolink.ai", model: "gpt-image-2", quality: "ultra"
+    })).toThrow("quality");
+  });
+
+  it("accepts a bounded 16px custom size and A4 presets", () => {
+    const settings = { baseUrl: "https://api.evolink.ai", model: "gpt-image-2.5-flare" };
+    expect(buildEvolinkImagePayload("image.generate", { prompt: "海报", width: 1024, height: 768 }, settings).size).toBe("4:3");
+    expect(buildEvolinkImagePayload("image.generate", { prompt: "海报", width: 848, height: 1200 }, settings).size).toBe("848x1200");
+    expect(buildEvolinkImagePayload("image.generate", { prompt: "海报", width: 1280, height: 736 }, settings).size).toBe("1280x736");
+  });
+
   it("normalizes task ids, statuses, and result URLs", () => {
     const response = {
       data: {