Add separate test files to test the length property of Intl functions

harness/testBuiltInObject.js

@@ -13,12 +13,10 @@ description: |
  * @param {boolean} isConstructor whether the specification describes obj as a constructor.
  * @param {String[]} properties an array with the names of the built-in properties of obj,
  *   excluding length, prototype, or properties with non-default attributes.
- * @param {number} length for functions only: the length specified for the function
- *   or derived from the argument list.
  * @author Norbert Lindenberg
  */
 
-function testBuiltInObject(obj, isFunction, isConstructor, properties, length) {
+function testBuiltInObject(obj, isFunction, isConstructor, properties) {
 
   if (obj === undefined) {
     $ERROR("Object being tested is undefined.");
@@ -55,29 +53,6 @@ function testBuiltInObject(obj, isFunction, isConstructor, properties, length) {
   // verification of the absence of the prototype property has
   // been moved to the end of the test
 
-  if (isFunction) {
-
-    if (typeof obj.length !== "number" || obj.length !== Math.floor(obj.length)) {
-      $ERROR("Built-in functions must have a length property with an integer value.");
-    }
-
-    if (obj.length !== length) {
-      $ERROR("Function's length property doesn't have specified value; expected " +
-        length + ", got " + obj.length + ".");
-    }
-
-    var desc = Object.getOwnPropertyDescriptor(obj, "length");
-    if (desc.writable) {
-      $ERROR("The length property of a built-in function must not be writable.");
-    }
-    if (desc.enumerable) {
-      $ERROR("The length property of a built-in function must not be enumerable.");
-    }
-    if (!desc.configurable) {
-      $ERROR("The length property of a built-in function must be configurable.");
-    }
-  }
-
   properties.forEach(function(prop) {
     var desc = Object.getOwnPropertyDescriptor(obj, prop);
     if (desc === undefined) {

test/intl402/Collator/10.1_L15.js

@@ -11,4 +11,4 @@ author: Norbert Lindenberg
 includes: [testBuiltInObject.js]
 ---*/
 
-testBuiltInObject(Intl.Collator, true, true, ["supportedLocalesOf"], 0);
+testBuiltInObject(Intl.Collator, true, true, ["supportedLocalesOf"]);

test/intl402/Collator/length.js

+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-intl.collator
+description: >
+  Intl.Collator.length is 0.
+info: |
+  Intl.Collator ( [ locales [ , options ] ] )
+
+  17 ECMAScript Standard Built-in Objects:
+
+    Every built-in function object, including constructors, has a length
+    property whose value is an integer. Unless otherwise specified, this
+    value is equal to the largest number of named arguments shown in the
+    subclause headings for the function description. Optional parameters
+    (which are indicated with brackets: [ ]) or rest parameters (which
+    are shown using the form «...name») are not included in the default
+    argument count.
+    Unless otherwise specified, the length property of a built-in function
+    object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
+    [[Configurable]]: true }.
+
+includes: [propertyHelper.js]
+---*/
+
+assert.sameValue(Intl.Collator.length, 0);
+
+verifyNotEnumerable(Intl.Collator, "length");
+verifyNotWritable(Intl.Collator, "length");
+verifyConfigurable(Intl.Collator, "length");

test/intl402/Collator/prototype/compare/10.3.2_1_a_L15.js

@@ -12,4 +12,4 @@ author: Norbert Lindenberg
 includes: [testBuiltInObject.js]
 ---*/
 
-testBuiltInObject(new Intl.Collator().compare, true, false, [], 2);
+testBuiltInObject(new Intl.Collator().compare, true, false, []);

test/intl402/Collator/prototype/compare/10.3.2_L15.js

@@ -11,4 +11,4 @@ author: Norbert Lindenberg
 includes: [testBuiltInObject.js]
 ---*/
 
-testBuiltInObject(Object.getOwnPropertyDescriptor(Intl.Collator.prototype, "compare").get , true, false, [], 0);
+testBuiltInObject(Object.getOwnPropertyDescriptor(Intl.Collator.prototype, "compare").get , true, false, []);

test/intl402/Collator/prototype/compare/compare-function-length.js

+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-intl.collator.prototype.compare
+description: >
+  The length of the bound Collator compare function is 2.
+info: |
+  get Intl.Collator.prototype.compare
+
+  ...
+  4. If collator.[[BoundCompare]] is undefined, then
+    a. Let F be a new built-in function object as defined in 10.3.4.
+    b. Let bc be BoundFunctionCreate(F, collator, « »).
+    c. Perform ! DefinePropertyOrThrow(bc, "length", PropertyDescriptor {[[Value]]: 2,
+       [[Writable]]: false, [[Enumerable]]: false, [[Configurable]]: true}).
+    ...
+
+includes: [propertyHelper.js]
+---*/
+
+var compareFn = new Intl.Collator().compare;
+
+assert.sameValue(compareFn.length, 2);
+
+verifyNotEnumerable(compareFn, "length");
+verifyNotWritable(compareFn, "length");
+verifyConfigurable(compareFn, "length");

test/intl402/Collator/prototype/compare/length.js

+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-intl.collator.prototype.compare
+description: >
+  get Intl.Collator.prototype.compare.length is 0.
+info: |
+  get Intl.Collator.prototype.compare
+
+  17 ECMAScript Standard Built-in Objects:
+
+    Every built-in function object, including constructors, has a length
+    property whose value is an integer. Unless otherwise specified, this
+    value is equal to the largest number of named arguments shown in the
+    subclause headings for the function description. Optional parameters
+    (which are indicated with brackets: [ ]) or rest parameters (which
+    are shown using the form «...name») are not included in the default
+    argument count.
+    Unless otherwise specified, the length property of a built-in function
+    object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
+    [[Configurable]]: true }.
+
+includes: [propertyHelper.js]
+---*/
+
+var desc = Object.getOwnPropertyDescriptor(Intl.Collator.prototype, "compare");
+
+assert.sameValue(desc.get.length, 0);
+
+verifyNotEnumerable(desc.get, "length");
+verifyNotWritable(desc.get, "length");
+verifyConfigurable(desc.get, "length");

test/intl402/Collator/prototype/resolvedOptions/10.3.3_L15.js

@@ -11,4 +11,4 @@ author: Norbert Lindenberg
 includes: [testBuiltInObject.js]
 ---*/
 
-testBuiltInObject(Intl.Collator.prototype.resolvedOptions, true, false, [], 0);
+testBuiltInObject(Intl.Collator.prototype.resolvedOptions, true, false, []);

test/intl402/Collator/prototype/resolvedOptions/length.js

+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-intl.collator.prototype.resolvedoptions
+description: >
+  Intl.Collator.prototype.resolvedOptions.length is 0.
+info: |
+  Intl.Collator.prototype.resolvedOptions ()
+
+  17 ECMAScript Standard Built-in Objects:
+
+    Every built-in function object, including constructors, has a length
+    property whose value is an integer. Unless otherwise specified, this
+    value is equal to the largest number of named arguments shown in the
+    subclause headings for the function description. Optional parameters
+    (which are indicated with brackets: [ ]) or rest parameters (which
+    are shown using the form «...name») are not included in the default
+    argument count.
+    Unless otherwise specified, the length property of a built-in function
+    object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
+    [[Configurable]]: true }.
+
+includes: [propertyHelper.js]
+---*/
+
+assert.sameValue(Intl.Collator.prototype.resolvedOptions.length, 0);
+
+verifyNotEnumerable(Intl.Collator.prototype.resolvedOptions, "length");
+verifyNotWritable(Intl.Collator.prototype.resolvedOptions, "length");
+verifyConfigurable(Intl.Collator.prototype.resolvedOptions, "length");

test/intl402/Collator/supportedLocalesOf/10.2.2_L15.js

@@ -11,4 +11,4 @@ author: Norbert Lindenberg
 includes: [testBuiltInObject.js]
 ---*/
 
-testBuiltInObject(Intl.Collator.supportedLocalesOf, true, false, [], 1);
+testBuiltInObject(Intl.Collator.supportedLocalesOf, true, false, []);

test/intl402/Collator/supportedLocalesOf/length.js

+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-intl.collator.supportedlocalesof
+description: >
+  Intl.Collator.supportedLocalesOf.length is 1.
+info: |
+  Intl.Collator.supportedLocalesOf ( locales [ , options ] )
+
+  17 ECMAScript Standard Built-in Objects:
+
+    Every built-in function object, including constructors, has a length
+    property whose value is an integer. Unless otherwise specified, this
+    value is equal to the largest number of named arguments shown in the
+    subclause headings for the function description. Optional parameters
+    (which are indicated with brackets: [ ]) or rest parameters (which
+    are shown using the form «...name») are not included in the default
+    argument count.
+    Unless otherwise specified, the length property of a built-in function
+    object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
+    [[Configurable]]: true }.
+
+includes: [propertyHelper.js]
+---*/
+
+assert.sameValue(Intl.Collator.supportedLocalesOf.length, 1);
+
+verifyNotEnumerable(Intl.Collator.supportedLocalesOf, "length");
+verifyNotWritable(Intl.Collator.supportedLocalesOf, "length");
+verifyConfigurable(Intl.Collator.supportedLocalesOf, "length");

test/intl402/Date/prototype/toLocaleDateString/13.3.2_L15.js

@@ -11,4 +11,4 @@ author: Norbert Lindenberg
 includes: [testBuiltInObject.js]
 ---*/
 
-testBuiltInObject(Date.prototype.toLocaleDateString, true, false, [], 0);
+testBuiltInObject(Date.prototype.toLocaleDateString, true, false, []);

test/intl402/Date/prototype/toLocaleDateString/length.js

+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sup-date.prototype.tolocaledatestring
+description: >
+  Date.prototype.toLocaleDateString.length is 0.
+info: |
+  Date.prototype.toLocaleDateString ( [ locales [ , options ] ] )
+
+  17 ECMAScript Standard Built-in Objects:
+
+    Every built-in function object, including constructors, has a length
+    property whose value is an integer. Unless otherwise specified, this
+    value is equal to the largest number of named arguments shown in the
+    subclause headings for the function description. Optional parameters
+    (which are indicated with brackets: [ ]) or rest parameters (which
+    are shown using the form «...name») are not included in the default
+    argument count.
+    Unless otherwise specified, the length property of a built-in function
+    object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
+    [[Configurable]]: true }.
+
+includes: [propertyHelper.js]
+---*/
+
+assert.sameValue(Date.prototype.toLocaleDateString.length, 0);
+
+verifyNotEnumerable(Date.prototype.toLocaleDateString, "length");
+verifyNotWritable(Date.prototype.toLocaleDateString, "length");
+verifyConfigurable(Date.prototype.toLocaleDateString, "length");

test/intl402/Date/prototype/toLocaleString/13.3.1_L15.js

@@ -11,4 +11,4 @@ author: Norbert Lindenberg
 includes: [testBuiltInObject.js]
 ---*/
 
-testBuiltInObject(Date.prototype.toLocaleString, true, false, [], 0);
+testBuiltInObject(Date.prototype.toLocaleString, true, false, []);

test/intl402/Date/prototype/toLocaleString/length.js

+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sup-date.prototype.tolocalestring
+description: >
+  Date.prototype.toLocaleString.length is 0.
+info: |
+  Date.prototype.toLocaleString ( [ locales [ , options ] ] )
+
+  17 ECMAScript Standard Built-in Objects:
+
+    Every built-in function object, including constructors, has a length
+    property whose value is an integer. Unless otherwise specified, this
+    value is equal to the largest number of named arguments shown in the
+    subclause headings for the function description. Optional parameters
+    (which are indicated with brackets: [ ]) or rest parameters (which
+    are shown using the form «...name») are not included in the default
+    argument count.
+    Unless otherwise specified, the length property of a built-in function
+    object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
+    [[Configurable]]: true }.
+
+includes: [propertyHelper.js]
+---*/
+
+assert.sameValue(Date.prototype.toLocaleString.length, 0);
+
+verifyNotEnumerable(Date.prototype.toLocaleString, "length");
+verifyNotWritable(Date.prototype.toLocaleString, "length");
+verifyConfigurable(Date.prototype.toLocaleString, "length");

test/intl402/Date/prototype/toLocaleTimeString/13.3.3_L15.js

@@ -11,4 +11,4 @@ author: Norbert Lindenberg
 includes: [testBuiltInObject.js]
 ---*/
 
-testBuiltInObject(Date.prototype.toLocaleTimeString, true, false, [], 0);
+testBuiltInObject(Date.prototype.toLocaleTimeString, true, false, []);

test/intl402/Date/prototype/toLocaleTimeString/length.js

+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sup-date.prototype.tolocaletimestring
+description: >
+  Date.prototype.toLocaleTimeString.length is 0.
+info: |
+  Date.prototype.toLocaleTimeString ( [ locales [ , options ] ] )
+
+  17 ECMAScript Standard Built-in Objects:
+
+    Every built-in function object, including constructors, has a length
+    property whose value is an integer. Unless otherwise specified, this
+    value is equal to the largest number of named arguments shown in the
+    subclause headings for the function description. Optional parameters
+    (which are indicated with brackets: [ ]) or rest parameters (which
+    are shown using the form «...name») are not included in the default
+    argument count.
+    Unless otherwise specified, the length property of a built-in function
+    object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
+    [[Configurable]]: true }.
+
+includes: [propertyHelper.js]
+---*/
+
+assert.sameValue(Date.prototype.toLocaleTimeString.length, 0);
+
+verifyNotEnumerable(Date.prototype.toLocaleTimeString, "length");
+verifyNotWritable(Date.prototype.toLocaleTimeString, "length");
+verifyConfigurable(Date.prototype.toLocaleTimeString, "length");

test/intl402/DateTimeFormat/12.1_L15.js

@@ -11,4 +11,4 @@ author: Norbert Lindenberg
 includes: [testBuiltInObject.js]
 ---*/
 
-testBuiltInObject(Intl.DateTimeFormat, true, true, ["supportedLocalesOf"], 0);
+testBuiltInObject(Intl.DateTimeFormat, true, true, ["supportedLocalesOf"]);

test/intl402/DateTimeFormat/length.js

+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-intl.datetimeformat
+description: >
+  Intl.DateTimeFormat.length is 0.
+info: |
+  Intl.DateTimeFormat ( [ locales [ , options ] ] )
+
+  17 ECMAScript Standard Built-in Objects:
+
+    Every built-in function object, including constructors, has a length
+    property whose value is an integer. Unless otherwise specified, this
+    value is equal to the largest number of named arguments shown in the
+    subclause headings for the function description. Optional parameters
+    (which are indicated with brackets: [ ]) or rest parameters (which
+    are shown using the form «...name») are not included in the default
+    argument count.
+    Unless otherwise specified, the length property of a built-in function
+    object has the attributes { [[Writable]]: false, [[Enumerable]]: false,
+    [[Configurable]]: true }.
+
+includes: [propertyHelper.js]
+---*/
+
+assert.sameValue(Intl.DateTimeFormat.length, 0);
+
+verifyNotEnumerable(Intl.DateTimeFormat, "length");
+verifyNotWritable(Intl.DateTimeFormat, "length");
+verifyConfigurable(Intl.DateTimeFormat, "length");

test/intl402/DateTimeFormat/prototype/format/12.3.2_1_a_L15.js

@@ -12,4 +12,4 @@ author: Norbert Lindenberg
 includes: [testBuiltInObject.js]
 ---*/
 
-testBuiltInObject(new Intl.DateTimeFormat().format, true, false, [], 1);
+testBuiltInObject(new Intl.DateTimeFormat().format, true, false, []);