Add tests for accessing Infinity on detached typed arrays

test/built-ins/TypedArrays/internals/Get/infinity-detached-buffer.js

+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+id: sec-integerindexedelementget
+info: >
+  "Infinity" is a canonical numeric string, test with access on detached buffer.
+description: |
+  9.4.5.4 [[Get]] ( P, Receiver )
+  ...
+  2. If Type(P) is String, then
+    a. Let numericIndex be ! CanonicalNumericIndexString(P).
+    b. If numericIndex is not undefined, then
+      i. Return ? IntegerIndexedElementGet(O, numericIndex).
+  ...
+
+  7.1.16 CanonicalNumericIndexString ( argument )
+    ...
+    3. Let n be ! ToNumber(argument).
+    4. If SameValue(! ToString(n), argument) is false, return undefined.
+    5. Return n.
+
+  9.4.5.8 IntegerIndexedElementGet ( O, index )
+    ...
+    3. Let buffer be O.[[ViewedArrayBuffer]].
+    4. If IsDetachedBuffer(buffer) is true, throw a TypeError exception.
+    ...
+
+includes: [testTypedArray.js, detachArrayBuffer.js]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var sample = new TA(0);
+  $DETACHBUFFER(sample.buffer);
+
+  assert.throws(TypeError, function() {
+    sample.Infinity;
+  });
+});

test/built-ins/TypedArrays/internals/GetOwnProperty/enumerate-detached-buffer.js

+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+id: sec-integer-indexed-exotic-objects-getownproperty-p
+info: Test for-in enumeration with detached buffer.
+description: |
+  9.4.5.1 [[GetOwnProperty]] ( P )
+    ...
+    3. If Type(P) is String, then
+      a. Let numericIndex be ! CanonicalNumericIndexString(P).
+      b. If numericIndex is not undefined, then
+        i. Let value be ? IntegerIndexedElementGet(O, numericIndex).
+    ...
+
+  9.4.5.8 IntegerIndexedElementGet ( O, index )
+    ...
+    3. Let buffer be O.[[ViewedArrayBuffer]].
+    4. If IsDetachedBuffer(buffer) is true, throw a TypeError exception.
+    ...
+
+  13.7.5.15 EnumerateObjectProperties (O)
+    ...
+    EnumerateObjectProperties must obtain the own property keys of the
+    target object by calling its [[OwnPropertyKeys]] internal method.
+    Property attributes of the target object must be obtained by
+    calling its [[GetOwnProperty]] internal method.
+
+includes: [testTypedArray.js, detachArrayBuffer.js]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var sample = new TA(42);
+  $DETACHBUFFER(sample.buffer);
+
+  assert.throws(TypeError, function() {
+    for (var key in sample) {
+      throw new Test262Error();
+    }
+  });
+});

test/built-ins/TypedArrays/internals/HasProperty/infinity-with-detached-buffer.js

+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+id: sec-integer-indexed-exotic-objects-hasproperty-p
+info: >
+  "Infinity" is a canonical numeric string, test with access on detached buffer.
+description: |
+  9.4.5.2 [[HasProperty]]( P )
+  ...
+  3. If Type(P) is String, then
+    a. Let numericIndex be ! CanonicalNumericIndexString(P).
+    b. If numericIndex is not undefined, then
+      i. Let buffer be O.[[ViewedArrayBuffer]].
+      ii. If IsDetachedBuffer(buffer) is true, throw a TypeError exception.
+      ...
+
+  7.1.16 CanonicalNumericIndexString ( argument )
+    ...
+    3. Let n be ! ToNumber(argument).
+    4. If SameValue(! ToString(n), argument) is false, return undefined.
+    5. Return n.
+
+flags: [noStrict]
+includes: [testTypedArray.js, detachArrayBuffer.js]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var sample = new TA(0);
+  $DETACHBUFFER(sample.buffer);
+
+  assert.throws(TypeError, function() {
+    with (sample) Infinity;
+  });
+});