Add test for slugify

src/utils/__tests__/slugify.test.ts

@@ -0,0 +1,60 @@
+import { describe, expect, it } from "vitest";
+import { deslugify, slugify } from "../slugify";
+
+describe("slugify", () => {
+  it("should convert basic string to slug", () => {
+    expect(slugify("Hello World")).toBe("hello-world");
+  });
+
+  it("should handle multiple spaces and special chars", () => {
+    expect(slugify("My  Example!!!  URL")).toBe("my-example-url");
+  });
+
+  it("should handle numbers correctly", () => {
+    expect(slugify("Article 123")).toBe("article-123");
+  });
+
+  it("should trim leading and trailing spaces", () => {
+    expect(slugify("  Trim Spaces  ")).toBe("trim-spaces");
+  });
+
+  it("should handle consecutive special characters", () => {
+    expect(slugify("Multiple!!!Special***Chars")).toBe(
+      "multiple-special-chars",
+    );
+  });
+
+  it("should handle empty string", () => {
+    expect(slugify("")).toBe("");
+  });
+
+  it("should maintain correct order of words", () => {
+    expect(slugify("First Second Third")).toBe("first-second-third");
+  });
+});
+
+describe("deslugify", () => {
+  it("should convert basic slug to readable string", () => {
+    expect(deslugify("hello-world")).toBe("Hello World");
+  });
+
+  it("should handle numbers in slug", () => {
+    expect(deslugify("article-123")).toBe("Article 123");
+  });
+
+  it("should handle single word", () => {
+    expect(deslugify("hello")).toBe("Hello");
+  });
+
+  it("should handle empty string", () => {
+    expect(deslugify("")).toBe("");
+  });
+
+  it("should handle multiple consecutive hyphens", () => {
+    expect(deslugify("multiple--hyphens")).toBe("Multiple Hyphens");
+  });
+
+  it("should maintain correct capitalization for each word", () => {
+    expect(deslugify("first-second-third")).toBe("First Second Third");
+  });
+});