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// |reftest| shell-option(--enable-error-iserror) skip-if(!Error.isError||!xulRuntime.shell) -- Error.isError is not enabled unconditionally, requires shell-options
// Copyright (C) 2024 Jordan Harband. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-error.iserror
description: >
Returns true on Error and Error subclass instances
features: [Error.isError]
---*/
assert.sameValue(Error.isError(new Error()), true);
assert.sameValue(Error.isError(new EvalError()), true);
assert.sameValue(Error.isError(new RangeError()), true);
assert.sameValue(Error.isError(new ReferenceError()), true);
assert.sameValue(Error.isError(new SyntaxError()), true);
assert.sameValue(Error.isError(new TypeError()), true);
assert.sameValue(Error.isError(new URIError()), true);
if (typeof AggregateError !== 'undefined') {
assert.sameValue(Error.isError(new AggregateError([])), true);
}
if (typeof SuppressedError !== 'undefined') {
assert.sameValue(Error.isError(new SuppressedError()), true);
}
reportCompare(0, 0);