Reuse %TypedArray%.from and .of tests on each TypedArray constructor

test/built-ins/TypedArray/from/mapfn-is-not-callable.js

@@ -11,16 +11,51 @@ info: >
     a. If IsCallable(mapfn) is false, throw a TypeError exception.
   ...
 includes: [testTypedArray.js]
-features: [Symbol.iterator]
+features: [Symbol, Symbol.iterator]
 ---*/
 
+var getIterator = 0;
 var arrayLike = {};
 Object.defineProperty(arrayLike, Symbol.iterator, {
   get: function() {
-    throw new Test262Error();
+    getIterator++;
   }
 });
 
+assert.throws(TypeError, function() {
+  TypedArray.from(arrayLike, null);
+}, "mapfn is null");
+
 assert.throws(TypeError, function() {
   TypedArray.from(arrayLike, 42);
-});
+}, "mapfn is a number");
+
+assert.throws(TypeError, function() {
+  TypedArray.from(arrayLike, "");
+}, "mapfn is a string");
+
+assert.throws(TypeError, function() {
+  TypedArray.from(arrayLike, {});
+}, "mapfn is an ordinary object");
+
+assert.throws(TypeError, function() {
+  TypedArray.from(arrayLike, []);
+}, "mapfn is an array");
+
+assert.throws(TypeError, function() {
+  TypedArray.from(arrayLike, true);
+}, "mapfn is a boolean");
+
+var s = Symbol("1")
+assert.throws(TypeError, function() {
+  TypedArray.from(arrayLike, s);
+}, "mapfn is a symbol");
+
+assert.throws(TypeError, function() {
+  TypedArray.from(arrayLike, Int8Array);
+}, "mapfn is a TypedArray constructor (not callable)");
+
+assert.sameValue(
+  getIterator, 0,
+  "IsCallable(mapfn) check occurs before getting source[@@iterator]"
+);

test/built-ins/TypedArrays/from/arylk-get-length-error.js

@@ -0,0 +1,27 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+id: sec-%typedarray%.from
+description: Returns error produced by accessing array-like's length
+info: >
+  22.2.2.1 %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] )
+
+  ...
+  7. Let len be ? ToLength(? Get(arrayLike, "length")).
+  ...
+includes: [testTypedArray.js]
+---*/
+
+var arrayLike = {};
+
+Object.defineProperty(arrayLike, "length", {
+  get: function() {
+    throw new Test262Error();
+  }
+});
+
+testWithTypedArrayConstructors(function(TA) {
+  assert.throws(Test262Error, function() {
+    TA.from(arrayLike);
+  });
+});

test/built-ins/TypedArrays/from/arylk-to-length-error.js

@@ -0,0 +1,27 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+id: sec-%typedarray%.from
+description: Returns error produced by interpreting length property as a length
+info: >
+  22.2.2.1 %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] )
+
+  ...
+  7. Let len be ? ToLength(? Get(arrayLike, "length")).
+  ...
+includes: [testTypedArray.js]
+---*/
+
+var arrayLike = { length: {} };
+
+arrayLike.length = {
+  valueOf: function() {
+    throw new Test262Error();
+  }
+};
+
+testWithTypedArrayConstructors(function(TA) {
+  assert.throws(Test262Error, function() {
+    TA.from(arrayLike);
+  });
+});

test/built-ins/TypedArrays/from/inherited.js

@@ -13,5 +13,12 @@ includes: [testTypedArray.js]
 ---*/
 
 testWithTypedArrayConstructors(function(TA) {
-  assert.sameValue(TA.from, TypedArray.from);
+  assert.sameValue(
+    TA.from, TypedArray.from,
+    "method is inherited %TypedArray%.from"
+  );
+  assert.sameValue(
+    TA.hasOwnProperty("from"), false,
+    "constructor does not define an own property named 'from'"
+  );
 });

test/built-ins/TypedArrays/from/invoked-as-func.js

@@ -0,0 +1,22 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+id: sec-%typedarray%.from
+description: >
+  "from" cannot be invoked as a function
+info: >
+  22.2.2.1 %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] )
+
+  1. Let C be the this value.
+  2. If IsConstructor(C) is false, throw a TypeError exception.
+  ...
+includes: [testTypedArray.js]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var from = TA.from;
+
+  assert.throws(TypeError, function() {
+    from([]);
+  });
+});

test/built-ins/TypedArrays/from/iter-access-error.js

@@ -0,0 +1,32 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+id: sec-%typedarray%.from
+description: Returns error produced by accessing @@iterator
+info: >
+  22.2.2.1 %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] )
+
+  ...
+  6. Let arrayLike be ? IterableToArrayLike(source).
+  ...
+
+  22.2.2.1.1 Runtime Semantics: IterableToArrayLike( items )
+
+  1. Let usingIterator be ? GetMethod(items, @@iterator).
+  ...
+features: [Symbol.iterator]
+includes: [testTypedArray.js]
+---*/
+
+var iter = {};
+Object.defineProperty(iter, Symbol.iterator, {
+  get: function() {
+    throw new Test262Error();
+  }
+});
+
+testWithTypedArrayConstructors(function(TA) {
+  assert.throws(Test262Error, function() {
+    TA.from(iter);
+  });
+});

test/built-ins/TypedArrays/from/iter-invoke-error.js

@@ -0,0 +1,32 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+id: sec-%typedarray%.from
+description: Returns error produced by invoking @@iterator
+info: >
+  22.2.2.1 %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] )
+
+  ...
+  6. Let arrayLike be ? IterableToArrayLike(source).
+  ...
+
+  22.2.2.1.1 Runtime Semantics: IterableToArrayLike( items )
+
+  1. Let usingIterator be ? GetMethod(items, @@iterator).
+  2. If usingIterator is not undefined, then
+    a. Let iterator be ? GetIterator(items, usingIterator).
+  ...
+features: [Symbol.iterator]
+includes: [testTypedArray.js]
+---*/
+
+var iter = {};
+iter[Symbol.iterator] = function() {
+  throw new Test262Error();
+};
+
+testWithTypedArrayConstructors(function(TA) {
+  assert.throws(Test262Error, function() {
+    TA.from(iter);
+  });
+});

test/built-ins/TypedArrays/from/iter-next-error.js

@@ -0,0 +1,31 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+id: sec-%typedarray%.from
+description: Returns error produced by advancing the iterator
+info: >
+  22.2.2.1.1 Runtime Semantics: IterableToArrayLike( items )
+
+  2. If usingIterator is not undefined, then
+    ...
+    d. Repeat, while next is not false
+      i. Let next be ? IteratorStep(iterator).
+  ...
+features: [Symbol.iterator]
+includes: [testTypedArray.js]
+---*/
+
+var iter = {};
+iter[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      throw new Test262Error();
+    }
+  };
+};
+
+testWithTypedArrayConstructors(function(TA) {
+  assert.throws(Test262Error, function() {
+    TA.from(iter);
+  });
+});

test/built-ins/TypedArrays/from/iter-next-value-error.js

@@ -0,0 +1,40 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+id: sec-%typedarray%.from
+description: Returns error produced by accessing iterated value
+info: >
+  22.2.2.1.1 Runtime Semantics: IterableToArrayLike( items )
+
+  2. If usingIterator is not undefined, then
+    ...
+    d. Repeat, while next is not false
+      ...
+      ii. If next is not false, then
+        1. Let nextValue be ? IteratorValue(next).
+  ...
+features: [Symbol.iterator]
+includes: [testTypedArray.js]
+---*/
+
+var iter = {};
+iter[Symbol.iterator] = function() {
+  return {
+    next: function() {
+      var result = {};
+      Object.defineProperty(result, 'value', {
+        get: function() {
+          throw new Test262Error();
+        }
+      });
+
+      return result;
+    }
+  };
+};
+
+testWithTypedArrayConstructors(function(TA) {
+  assert.throws(Test262Error, function() {
+    TA.from(iter);
+  });
+});

test/built-ins/TypedArrays/from/mapfn-is-not-callable.js

@@ -0,0 +1,63 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+id: sec-%typedarray%.from
+description: Throw a TypeError exception is mapfn is not callable
+info: >
+  22.2.2.1 %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] )
+
+  ...
+  3. If mapfn was supplied and mapfn is not undefined, then
+    a. If IsCallable(mapfn) is false, throw a TypeError exception.
+  ...
+includes: [testTypedArray.js]
+features: [Symbol, Symbol.iterator]
+---*/
+
+var getIterator = 0;
+var arrayLike = {};
+Object.defineProperty(arrayLike, Symbol.iterator, {
+  get: function() {
+    getIterator++;
+  }
+});
+
+testWithTypedArrayConstructors(function(TA) {
+  assert.throws(TypeError, function() {
+    TA.from(arrayLike, null);
+  }, "mapfn is null");
+
+  assert.throws(TypeError, function() {
+    TA.from(arrayLike, 42);
+  }, "mapfn is a number");
+
+  assert.throws(TypeError, function() {
+    TA.from(arrayLike, "");
+  }, "mapfn is a string");
+
+  assert.throws(TypeError, function() {
+    TA.from(arrayLike, {});
+  }, "mapfn is an ordinary object");
+
+  assert.throws(TypeError, function() {
+    TA.from(arrayLike, []);
+  }, "mapfn is an array");
+
+  assert.throws(TypeError, function() {
+    TA.from(arrayLike, true);
+  }, "mapfn is a boolean");
+
+  var s = Symbol("1")
+  assert.throws(TypeError, function() {
+    TA.from(arrayLike, s);
+  }, "mapfn is a symbol");
+
+  assert.throws(TypeError, function() {
+    TA.from(arrayLike, TA);
+  }, "mapfn is a TypedArray constructor (not callable)");
+
+  assert.sameValue(
+    getIterator, 0,
+    "IsCallable(mapfn) check occurs before getting source[@@iterator]"
+  );
+});

test/built-ins/TypedArrays/from/this-is-not-constructor.js

@@ -0,0 +1,22 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+id: sec-%typedarray%.from
+description: >
+  Throws a TypeError exception if this is not a constructor
+info: >
+  22.2.2.1 %TypedArray%.from ( source [ , mapfn [ , thisArg ] ] )
+
+  1. Let C be the this value.
+  2. If IsConstructor(C) is false, throw a TypeError exception.
+  ...
+includes: [testTypedArray.js]
+---*/
+
+var m = { m() {} }.m;
+
+testWithTypedArrayConstructors(function(TA) {
+  assert.throws(TypeError, function() {
+    TA.from.call(m, []);
+  });
+});

test/built-ins/TypedArrays/of/inherited.js

@@ -13,5 +13,12 @@ includes: [testTypedArray.js]
 ---*/
 
 testWithTypedArrayConstructors(function(TA) {
-  assert.sameValue(TA.of, TypedArray.of);
-});
+  assert.sameValue(
+    TA.of, TypedArray.of,
+    "method is inherited %TypedArray%.of"
+  );
+  assert.sameValue(
+    TA.hasOwnProperty("of"), false,
+    "constructor does not define an own property named 'of'"
+  );
+});

test/built-ins/TypedArrays/of/invoked-as-func.js

@@ -0,0 +1,23 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+es6id: 22.2.2.2
+description: >
+  "of" cannot be invoked as a function
+info: >
+  22.2.2.2 %TypedArray%.of ( ...items )
+
+  ...
+  3. Let C be the this value.
+  4. If IsConstructor(C) is false, throw a TypeError exception.
+  ...
+includes: [testTypedArray.js]
+---*/
+
+testWithTypedArrayConstructors(function(TA) {
+  var of = TA.of;
+
+  assert.throws(TypeError, function() {
+    of();
+  });
+});

test/built-ins/TypedArrays/of/this-is-not-constructor.js

@@ -0,0 +1,23 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+id: sec-%typedarray%.of
+description: >
+  Throws a TypeError exception if this is not a constructor
+info: >
+  22.2.2.2 %TypedArray%.of ( ...items )
+
+  ...
+  3. Let C be the this value.
+  4. If IsConstructor(C) is false, throw a TypeError exception.
+  ...
+includes: [testTypedArray.js]
+---*/
+
+var m = { m() {} }.m;
+
+testWithTypedArrayConstructors(function(TA) {
+  assert.throws(TypeError, function() {
+    TA.of.call(m, []);
+  });
+});