test/mjsunit/regress/regress-87.js

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// In Issue 87, we allowed unicode escape sequences in RegExp flags.
// However, according to ES5, they should not be interpreted, but passed
// verbatim to the RegExp constructor.
// (On top of that, the original test was bugged and never tested anything).
// The behavior was changed in r8969 to not interpret escapes, but this
// test didn't test that, and only failed when making invalid flag characters
// an error too.

assertThrows("/x/\\u0067");
assertThrows("/x/\\u0069");
assertThrows("/x/\\u006d");

assertThrows("/x/\\u0067i");
assertThrows("/x/\\u0069m");
assertThrows("/x/\\u006dg");

assertThrows("/x/m\\u0067");
assertThrows("/x/g\\u0069");
assertThrows("/x/i\\u006d");

assertThrows("/x/m\\u0067i");
assertThrows("/x/g\\u0069m");
assertThrows("/x/i\\u006dg");

assertThrows("/x/\\u0068");
assertThrows("/x/\\u0020");