querystring.test.js

// In the prep, we implemented a function to parse query strings.
// Unfortunately, it contains several bugs!
// Below is one test case for an edge case the implementation doesn't handle well.
// Fix the implementation for this test, and try to think of as many other edge cases as possible - write tests and fix those too.

const parseQueryString = require("./querystring.js")


  test("returns empty object for empty string", () => {
    expect(parseQueryString("")).toEqual({});
  });

  test("parses a single key-value pair", () => {
    expect(parseQueryString("name=John")).toEqual({
      name: "John",
    });
  });

  test("parses multiple key-value pairs", () => {
    expect(parseQueryString("name=John&age=30")).toEqual({
      name: "John",
      age: "30",
    });
  });
  
test("parses querystring values containing =", () => {
  expect(parseQueryString("equation=x=y+1")).toEqual({
    "equation": "x=y+1",
  });
});