Add tests for Date.prototype.getYear

test/annexB/built-ins/Date/prototype/getYear/B.2.4.propertyCheck.js

-// Copyright 2009 the Sputnik authors.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: Check type of various properties
-es5id: B.2.4
-description: Checking properties of the Date object (getYear)
----*/
-
-if (typeof Date.prototype.getYear !== "function")  $ERROR('#1: typeof Date.prototype.getYear === "function". Actual: ' + (typeof Date.prototype.getYear ));
-if (typeof Date.prototype['getYear'] !== "function")  $ERROR('#2: typeof Date.prototype["getYear"] === "function". Actual: ' + (typeof Date.prototype["getYear"] ));

test/annexB/built-ins/Date/prototype/getYear/nan.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-date.prototype.getyear
+es6id: B.2.4.1
+es5id: B.2.4
+description: NaN time value
+info: |
+    1. Let t be ? thisTimeValue(this value).
+    2. If t is NaN, return NaN.
+---*/
+
+var date = new Date({});
+
+assert.sameValue(date.getYear(), NaN);

test/annexB/built-ins/Date/prototype/getYear/return-value.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-date.prototype.getyear
+es6id: B.2.4.1
+es5id: B.2.4
+description: >
+    Return value for objects with numeric value in [[DateValue]] internal slot
+info: |
+    1. Let t be ? thisTimeValue(this value).
+    2. If t is NaN, return NaN.
+    3. Return YearFromTime(LocalTime(t)) - 1900.
+---*/
+
+assert.sameValue(new Date(1899, 0).getYear(), -1, '1899: first millisecond');
+assert.sameValue(
+  new Date(1899, 11, 31, 23, 59, 59, 999).getYear(),
+  -1,
+  '1899: final millisecond'
+);
+
+assert.sameValue(new Date(1900, 0).getYear(), 0, '1900: first millisecond');
+assert.sameValue(
+  new Date(1900, 11, 31, 23, 59, 59, 999).getYear(),
+  0,
+  '1900: final millisecond'
+);
+
+assert.sameValue(new Date(1970, 0).getYear(), 70, '1970: first millisecond');
+assert.sameValue(
+  new Date(1970, 11, 31, 23, 59, 59, 999).getYear(),
+  70,
+  '1970: final millisecond'
+);
+
+assert.sameValue(new Date(2000, 0).getYear(), 100, '2000: first millisecond');
+assert.sameValue(
+  new Date(2000, 11, 31, 23, 59, 59, 999).getYear(),
+  100,
+  '2000: final millisecond'
+);

test/annexB/built-ins/Date/prototype/getYear/this-not-date.js

+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+esid: sec-date.prototype.getyear
+es6id: B.2.4.1
+es5id: B.2.4
+description: Behavior when `this` value has no [[DateValue]] internal slot
+info: |
+    1. Let t be ? thisTimeValue(this value).
+---*/
+
+var getYear = Date.prototype.getYear;
+
+assert.sameValue(typeof getYear, 'function');
+
+assert.throws(TypeError, function() {
+  getYear.call({});
+}, 'object');
+
+assert.throws(TypeError, function() {
+  getYear.call(undefined);
+}, 'undefined');
+
+assert.throws(TypeError, function() {
+  getYear.call(null);
+}, 'null');