add unit tests for common/url/search-params.ts (#26115)

test/common/url/search-params.test.ts

@@ -0,0 +1,48 @@
+import { describe, expect, it, vi, afterEach } from "vitest";
+
+import {
+  addSearchParam,
+  createSearchParam,
+  extractSearchParam,
+  extractSearchParamsObject,
+  removeSearchParam,
+} from "../../../src/common/url/search-params";
+
+const sortQueryString = (querystring: string): string =>
+  querystring.split("&").sort().join("&");
+
+vi.mock("../../../src/common/dom/get_main_window", () => ({
+  mainWindow: { location: { search: "?param1=ab+c&param2" } },
+}));
+
+afterEach(() => {
+  vi.resetAllMocks();
+});
+
+describe("Search Params Tests", () => {
+  it("should extract all search params from window object", () => {
+    expect(extractSearchParamsObject()).toEqual({ param1: "ab c", param2: "" });
+  });
+
+  it("should return value for specified search param from window object", () => {
+    expect(extractSearchParam("param1")).toEqual("ab c");
+  });
+
+  it("should create query string from given object", () => {
+    expect(
+      sortQueryString(createSearchParam({ param1: "ab c", param2: "" }))
+    ).toEqual(sortQueryString("param1=ab+c&param2="));
+  });
+
+  it("should return query string which combines provided param object and window.location.search", () => {
+    expect(
+      sortQueryString(addSearchParam({ param4: "", param3: "x y" }))
+    ).toEqual(sortQueryString("param1=ab+c&param2=&param3=x+y&param4="));
+  });
+
+  it("should return query string from window.location.search but remove the provided param from it", () => {
+    expect(sortQueryString(removeSearchParam("param2"))).toEqual(
+      sortQueryString("param1=ab+c")
+    );
+  });
+});