urlsearchparams-append.any.js

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This WPT test may be referenced by the following Test IDs:
- /url/urlsearchparams-append.any.html - WPT Dashboard Interop Dashboard
- /url/urlsearchparams-append.any.worker.html - WPT Dashboard Interop Dashboard

test(function() {

    var params = new URLSearchParams();

    params.append('a', 'b');

    assert_equals(params + '', 'a=b');

    params.append('a', 'b');

    assert_equals(params + '', 'a=b&a=b');

    params.append('a', 'c');

    assert_equals(params + '', 'a=b&a=b&a=c');

}, 'Append same name');

test(function() {

    var params = new URLSearchParams();

    params.append('', '');

    assert_equals(params + '', '=');

    params.append('', '');

    assert_equals(params + '', '=&=');

}, 'Append empty strings');

test(function() {

    var params = new URLSearchParams();

    params.append(null, null);

    assert_equals(params + '', 'null=null');

    params.append(null, null);

    assert_equals(params + '', 'null=null&null=null');

}, 'Append null');

test(function() {

    var params = new URLSearchParams();

    params.append('first', 1);

    params.append('second', 2);

    params.append('third', '');

    params.append('first', 10);

    assert_true(params.has('first'), 'Search params object has name "first"');

    assert_equals(params.get('first'), '1', 'Search params object has name "first" with value "1"');

    assert_equals(params.get('second'), '2', 'Search params object has name "second" with value "2"');

    assert_equals(params.get('third'), '', 'Search params object has name "third" with value ""');

    params.append('first', 10);

    assert_equals(params.get('first'), '1', 'Search params object has name "first" with value "1"');

}, 'Append multiple');