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'use strict';
// Tests below are not from WPT.
require('../common');
const assert = require('assert');
const params = new URLSearchParams('a=b&c=d');
const keys = params.keys();
assert.strictEqual(typeof keys[Symbol.iterator], 'function');
assert.strictEqual(keys[Symbol.iterator](), keys);
assert.deepStrictEqual(keys.next(), {
value: 'a',
done: false
});
assert.deepStrictEqual(keys.next(), {
value: 'c',
done: false
});
assert.deepStrictEqual(keys.next(), {
value: undefined,
done: true
});
assert.deepStrictEqual(keys.next(), {
value: undefined,
done: true
});
assert.throws(() => {
keys.next.call(undefined);
}, {
code: 'ERR_INVALID_THIS',
name: 'TypeError',
message: 'Value of "this" must be of type URLSearchParamsIterator'
});
assert.throws(() => {
params.keys.call(undefined);
}, {
code: 'ERR_INVALID_THIS',
name: 'TypeError',
message: 'Value of "this" must be of type URLSearchParams'
});
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