tests:

add unit tests for a function as example

Author: 0oM4R

packages/playground/tests/utils/extractDomainIP.test.ts

@@ -0,0 +1,42 @@
+import { describe, expect, it } from "vitest";
+
+import { extractDomainIP } from "../../src/utils/gateway";
+
+describe("extractDomainIP", () => {
+  it("should extract the domain from a URL with a protocol", () => {
+    const domain = extractDomainIP("https://example.com:8080");
+    expect(domain).toBe("example.com");
+  });
+
+  it("should extract the IPv6 address from a URL", () => {
+    const ipv6 = extractDomainIP("https://[::1]:8080");
+    expect(ipv6).toBe("::1");
+  });
+
+  it("should throw an error when there is no domain or IP address", () => {
+    expect(() => extractDomainIP("http://:8080")).toThrow(
+      'Invalid input "http://:8080": No domain or IP address found.',
+    );
+  });
+
+  it("should throw an error for invalid IPv6 format", () => {
+    expect(() => extractDomainIP("https://[]:8080")).toThrow(
+      'Invalid input "https://[]:8080": Invalid IPv6 address format.',
+    );
+  });
+
+  it("should extract the domain from a URL without a port", () => {
+    const domain = extractDomainIP("https://example.com");
+    expect(domain).toBe("example.com");
+  });
+
+  it("should extract the IPv4 address from a URL", () => {
+    const ipv4 = extractDomainIP("http://192.168.0.1:3000");
+    expect(ipv4).toBe("192.168.0.1");
+  });
+
+  it("should handle plain domain strings without protocols", () => {
+    const domain = extractDomainIP("example.com");
+    expect(domain).toBe("example.com");
+  });
+});