Add unit tests for common/array files (#23006)

* add vitest coverage

* Add js doc to functions

* Add tests for common/array

test/common/array/literal-includes.test.ts

@@ -0,0 +1,30 @@
+import { describe, it, expect } from "vitest";
+import { arrayLiteralIncludes } from "../../../src/common/array/literal-includes";
+
+describe("arrayLiteralIncludes", () => {
+  const array = ["a", "b", "c"] as const;
+  const includes = arrayLiteralIncludes(array);
+
+  it("should return true if the element is in the array", () => {
+    expect(includes("a")).toBe(true);
+    expect(includes("b")).toBe(true);
+    expect(includes("c")).toBe(true);
+  });
+
+  it("should return false if the element is not in the array", () => {
+    expect(includes("d")).toBe(false);
+    expect(includes(1)).toBe(false);
+  });
+
+  it("should respect the fromIndex parameter", () => {
+    expect(includes("a", 1)).toBe(false);
+    expect(includes("b", 1)).toBe(true);
+  });
+
+  it("should handle empty arrays", () => {
+    const emptyArray = [] as const;
+    const includesEmpty = arrayLiteralIncludes(emptyArray);
+
+    expect(includesEmpty("a")).toBe(false);
+  });
+});