4c4af643e5
PR-URL: https://github.com/nodejs/node/pull/17489 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com> Reviewed-By: Myles Borins <myles.borins@gmail.com> Reviewed-By: Ali Ijaz Sheikh <ofrobots@google.com>
43 lines
1.3 KiB
JavaScript
43 lines
1.3 KiB
JavaScript
// Copyright 2017 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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function testAdvanceLastIndex(initial_last_index_value,
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expected_final_last_index_value) {
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let exec_call_count = 0;
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let last_index_setter_call_count = 0;
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let final_last_index_value;
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var customRegexp = {
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get global() { return true; },
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get unicode() { return true; },
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get lastIndex() {
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return initial_last_index_value;
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},
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set lastIndex(v) {
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last_index_setter_call_count++;
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final_last_index_value = v;
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},
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exec() {
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return (exec_call_count++ == 0) ? [""] : null;
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}
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};
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RegExp.prototype[Symbol.replace].call(customRegexp);
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assertEquals(2, exec_call_count);
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assertEquals(2, last_index_setter_call_count);
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assertEquals(expected_final_last_index_value, final_last_index_value);
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}
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testAdvanceLastIndex(-1, 1);
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testAdvanceLastIndex( 0, 1);
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testAdvanceLastIndex(2**31 - 2, 2**31 - 1);
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testAdvanceLastIndex(2**31 - 1, 2**31 - 0);
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testAdvanceLastIndex(2**32 - 3, 2**32 - 2);
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testAdvanceLastIndex(2**32 - 2, 2**32 - 1);
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testAdvanceLastIndex(2**32 - 1, 2**32 - 0);
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testAdvanceLastIndex(2**53 - 2, 2**53 - 1);
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testAdvanceLastIndex(2**53 - 1, 2**53 - 0);
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testAdvanceLastIndex(2**53 - 0, 2**53 - 0);
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