diff --git a/test/model-available.test.ts b/test/model-available.test.ts
new file mode 100644
index 000000000..09a7143e2
--- /dev/null
+++ b/test/model-available.test.ts
@@ -0,0 +1,43 @@
+import { isModelNotavailableInServer } from "../app/utils/model";
+
+describe("isModelNotavailableInServer", () => {
+    test("test model will return false, which means the model is available", () => {
+        const customModels = "";
+        const modelName = "gpt-4";
+        const providerNames = "OpenAI";
+        const result = isModelNotavailableInServer(customModels, modelName, providerNames);
+        expect(result).toBe(false);
+    });
+
+    test("test model will return false, which means the model is not available", () => {
+        const customModels = "-all,gpt-4o-mini";
+        const modelName = "gpt-4";
+        const providerNames = "OpenAI";
+        const result = isModelNotavailableInServer(customModels, modelName, providerNames);
+        expect(result).toBe(true);
+    });
+    
+    test("support passing multiple providers, model unavailable on one of the providers will return true", () => {
+        const customModels = "-all,gpt-4@Google";
+        const modelName = "gpt-4";
+        const providerNames = ["OpenAI", "Azure"];
+        const result = isModelNotavailableInServer(customModels, modelName, providerNames);
+        expect(result).toBe(true);
+    });
+
+    test("support passing multiple providers, model available on one of the providers will return false", () => {
+        const customModels = "-all,gpt-4@Google";
+        const modelName = "gpt-4";
+        const providerNames = ["OpenAI", "Google"];
+        const result = isModelNotavailableInServer(customModels, modelName, providerNames);
+        expect(result).toBe(false);
+    });
+
+    test("test custom model without setting provider", () => {
+        const customModels = "-all,mistral-large";
+        const modelName = "mistral-large";
+        const providerNames = modelName;
+        const result = isModelNotavailableInServer(customModels, modelName, providerNames);
+        expect(result).toBe(false);
+    });
+})
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