'use strict';

// Tests below are not from WPT.

require('../common');
const assert = require('assert');
const util = require('util');

const sp = new URLSearchParams('?a=a&b=b&b=c');
assert.strictEqual(util.inspect(sp),
                   "URLSearchParams { 'a' => 'a', 'b' => 'b', 'b' => 'c' }");
assert.strictEqual(util.inspect(sp, { depth: -1 }), '[Object]');
assert.strictEqual(
  util.inspect(sp, { breakLength: 1 }),
  "URLSearchParams {\n  'a' => 'a',\n  'b' => 'b',\n  'b' => 'c' }"
);
assert.strictEqual(util.inspect(sp.keys()),
                   "URLSearchParams Iterator { 'a', 'b', 'b' }");
assert.strictEqual(util.inspect(sp.values()),
                   "URLSearchParams Iterator { 'a', 'b', 'c' }");
assert.strictEqual(util.inspect(sp.keys(), { breakLength: 1 }),
                   "URLSearchParams Iterator {\n  'a',\n  'b',\n  'b' }");
assert.throws(() => sp[util.inspect.custom].call(), {
  code: 'ERR_INVALID_THIS',
});

const iterator = sp.entries();
assert.strictEqual(util.inspect(iterator),
                   "URLSearchParams Iterator { [ 'a', 'a' ], [ 'b', 'b' ], " +
                                             "[ 'b', 'c' ] }");
iterator.next();
assert.strictEqual(util.inspect(iterator),
                   "URLSearchParams Iterator { [ 'b', 'b' ], [ 'b', 'c' ] }");
iterator.next();
iterator.next();
assert.strictEqual(util.inspect(iterator),
                   'URLSearchParams Iterator {  }');
const emptySp = new URLSearchParams();
assert.strictEqual(util.inspect(emptySp), 'URLSearchParams {}');