test/mjsunit/cyclic-error-to-string.js

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// Test printing of cyclic errors which return the empty string for
// compatibility with Safari and Firefox.

var e = new Error();
assertEquals('Error', e + '');

e = new Error();
e.name = e;
e.message = e;
e.stack = e;
e.arguments = e;
assertEquals(': ', e + '');

e = new Error();
e.name = [ e ];
e.message = [ e ];
e.stack = [ e ];
e.arguments = [ e ];
assertEquals(': ', e + '');