Fix Date coercion tests (#906)

Fixes #767

test/built-ins/Date/UTC/coercion-errors.js

@@ -22,39 +22,39 @@ var counter = { toString: function() { callCount += 1; } };
 var callCount = 0;
 
 assert.throws(Test262Error, function() {
-  new Date(thrower, counter);
+  Date.UTC(thrower, counter);
 }, 'year');
 assert.sameValue(callCount, 0, 'coercion halts following error from "year"');
 
 assert.throws(Test262Error, function() {
-  new Date(0, thrower, counter);
+  Date.UTC(0, thrower, counter);
 }, 'month');
 assert.sameValue(callCount, 0, 'coercion halts following error from "month"');
 
 assert.throws(Test262Error, function() {
-  new Date(0, 0, thrower, counter);
+  Date.UTC(0, 0, thrower, counter);
 }, 'date');
 assert.sameValue(callCount, 0, 'coercion halts following error from "date"');
 
 assert.throws(Test262Error, function() {
-  new Date(0, 0, 1, thrower, counter);
+  Date.UTC(0, 0, 1, thrower, counter);
 }, 'hours');
 assert.sameValue(callCount, 0, 'coercion halts following error from "hours"');
 
 assert.throws(Test262Error, function() {
-  new Date(0, 0, 1, 0, thrower, counter);
+  Date.UTC(0, 0, 1, 0, thrower, counter);
 }, 'minutes');
 assert.sameValue(
   callCount, 0, 'coercion halts following error from "minutes"'
 );
 
 assert.throws(Test262Error, function() {
-  new Date(0, 0, 1, 0, 0, thrower, counter);
+  Date.UTC(0, 0, 1, 0, 0, thrower, counter);
 }, 'seconds');
 assert.sameValue(
   callCount, 0, 'coercion halts following error from "seconds"'
 );
 
 assert.throws(Test262Error, function() {
-  new Date(0, 0, 1, 0, 0, 0, thrower);
+  Date.UTC(0, 0, 1, 0, 0, 0, thrower);
 }, 'ms');

test/built-ins/Date/UTC/coercion-order.js

@@ -26,6 +26,6 @@ var minutes = { toString: function() { log += 'minutes'; return 0; } };
 var seconds = { toString: function() { log += 'seconds'; return 0; } };
 var ms = { toString: function() { log += 'ms'; return 0; } };
 
-new Date(year, month, date, hours,minutes, seconds, ms);
+Date.UTC(year, month, date, hours,minutes, seconds, ms);
 
 assert.sameValue(log, 'yearmonthdatehoursminutessecondsms');

test/built-ins/Date/coercion-errors.js

@@ -0,0 +1,64 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-date-year-month-date-hours-minutes-seconds-ms
+description: Abrupt completions from coercing input values
+info: |
+  3. If NewTarget is not undefined, then
+    a. Let y be ? ToNumber(year).
+    b. Let m be ? ToNumber(month).
+    c. If date is supplied, let dt be ? ToNumber(date); else let dt be 1.
+    d. If hours is supplied, let h be ? ToNumber(hours); else let h be 0.
+    e. If minutes is supplied, let min be ? ToNumber(minutes); else let min be 0.
+    f. If seconds is supplied, let s be ? ToNumber(seconds); else let s be 0.
+    g. If ms is supplied, let milli be ? ToNumber(ms); else let milli be 0.
+    h. If y is not NaN and 0 ≤ ToInteger(y) ≤ 99, let yr be 1900+ToInteger(y); otherwise,
+      let yr be y.
+    i. Let finalDate be MakeDate(MakeDay(yr, m, dt), MakeTime(h, min, s, milli)).
+    j. Let O be ? OrdinaryCreateFromConstructor(NewTarget, "%DatePrototype%", « [[DateValue]] »).
+    k. Set O.[[DateValue]] to TimeClip(UTC(finalDate)).
+    l. Return O.
+---*/
+
+var thrower = { toString: function() { throw new Test262Error(); } };
+var counter = { toString: function() { callCount += 1; } };
+var callCount = 0;
+
+assert.throws(Test262Error, function() {
+  new Date(thrower, counter);
+}, 'year');
+assert.sameValue(callCount, 0, 'coercion halts following error from "year"');
+
+assert.throws(Test262Error, function() {
+  new Date(0, thrower, counter);
+}, 'month');
+assert.sameValue(callCount, 0, 'coercion halts following error from "month"');
+
+assert.throws(Test262Error, function() {
+  new Date(0, 0, thrower, counter);
+}, 'date');
+assert.sameValue(callCount, 0, 'coercion halts following error from "date"');
+
+assert.throws(Test262Error, function() {
+  new Date(0, 0, 1, thrower, counter);
+}, 'hours');
+assert.sameValue(callCount, 0, 'coercion halts following error from "hours"');
+
+assert.throws(Test262Error, function() {
+  new Date(0, 0, 1, 0, thrower, counter);
+}, 'minutes');
+assert.sameValue(
+  callCount, 0, 'coercion halts following error from "minutes"'
+);
+
+assert.throws(Test262Error, function() {
+  new Date(0, 0, 1, 0, 0, thrower, counter);
+}, 'seconds');
+assert.sameValue(
+  callCount, 0, 'coercion halts following error from "seconds"'
+);
+
+assert.throws(Test262Error, function() {
+  new Date(0, 0, 1, 0, 0, 0, thrower);
+}, 'ms');

test/built-ins/Date/coercion-order.js

@@ -0,0 +1,35 @@
+// 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-year-month-date-hours-minutes-seconds-ms
+description: Order of input coercion
+info: |
+  3. If NewTarget is not undefined, then
+    a. Let y be ? ToNumber(year).
+    b. Let m be ? ToNumber(month).
+    c. If date is supplied, let dt be ? ToNumber(date); else let dt be 1.
+    d. If hours is supplied, let h be ? ToNumber(hours); else let h be 0.
+    e. If minutes is supplied, let min be ? ToNumber(minutes); else let min be 0.
+    f. If seconds is supplied, let s be ? ToNumber(seconds); else let s be 0.
+    g. If ms is supplied, let milli be ? ToNumber(ms); else let milli be 0.
+    h. If y is not NaN and 0 ≤ ToInteger(y) ≤ 99, let yr be 1900+ToInteger(y); otherwise,
+      let yr be y.
+    i. Let finalDate be MakeDate(MakeDay(yr, m, dt), MakeTime(h, min, s, milli)).
+    j. Let O be ? OrdinaryCreateFromConstructor(NewTarget, "%DatePrototype%", « [[DateValue]] »).
+    k. Set O.[[DateValue]] to TimeClip(UTC(finalDate)).
+    l. Return O.
+---*/
+
+var log = '';
+var year = { toString: function() { log += 'year'; return 0; } };
+var month = { toString: function() { log += 'month'; return 0; } };
+var date = { toString: function() { log += 'date'; return 1; } };
+var hours = { toString: function() { log += 'hours'; return 0; } };
+var minutes = { toString: function() { log += 'minutes'; return 0; } };
+var seconds = { toString: function() { log += 'seconds'; return 0; } };
+var ms = { toString: function() { log += 'ms'; return 0; } };
+
+new Date(year, month, date, hours,minutes, seconds, ms);
+
+assert.sameValue(log, 'yearmonthdatehoursminutessecondsms');