test/mjsunit/regress/regress-95920.js

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// Tests that objects with external arrays cannot be sealed or have their
// properties redefined.

(function() {
  assertThrows(function() {
    [0].every(function(){ Object.seal((new Int8Array(42))); });
    assertUnreable();
    }, TypeError)
})();

(function() {
  assertThrows(function() {
    [0].every(function(){ Object.freeze((new Int8Array(42))); });
    assertUnreable();
    }, TypeError)
})();

(function() {
  assertThrows(function() {
    [0].every(function(){ Object.preventExtensions((new Int8Array(42))); });
    assertUnreable();
    }, TypeError)
})();

(function() {
  assertThrows(function() {
      Object.defineProperty(new Int8Array(42), "1",
                            { writable: false, value: "1" });
      assertUnreable();
    })
})();