var tape = require("tape")

var updateQueryString = require("../../../lib/util/update-query-string")

tape("test update query string method", function(t) {
  var url = "http://example.com"
  var updatedUrl = updateQueryString(url, "foo", "bar")

  t.notEqual(url, updatedUrl, "update query string modifies URL")
  t.equal(updatedUrl, url + "?foo=bar", "update query string creates new query string when no query string params are set")

  updatedUrl = updateQueryString(updatedUrl, "foo", "baz")

  t.equal(updatedUrl, url + "?foo=baz", "update query string updates existing query string param")

  updatedUrl = updateQueryString(updatedUrl, "bar", "")

  t.equal(updatedUrl, url + "?foo=baz&bar=", "update query string appends to existing query string")

  t.end()
})