From cf68c3be91bd338ebc2e6b5122775a884516d993 Mon Sep 17 00:00:00 2001
From: jugglinmike <mike@mikepennisi.com>
Date: Tue, 19 Apr 2016 17:00:59 -0400
Subject: [PATCH] Correct invalid tests for the Date constructor
The millisecond representation of a given Date instance is dependent on
the local system's time zone settings. In order to pass consistently
across contexts, tests for this value must take the system configuration
into account.
Introduce a test harness utility function to encapsulate these concerns.
Re-use this function across all test files that assert the exact
millisecond representation of Date instances.
---
harness/assertRelativeDateMs.js | 21 +++++++
test/built-ins/Date/S15.9.3.1_A5_T1.js | 55 +++++-------------
test/built-ins/Date/S15.9.3.1_A5_T2.js | 55 +++++-------------
test/built-ins/Date/S15.9.3.1_A5_T3.js | 55 +++++-------------
test/built-ins/Date/S15.9.3.1_A5_T4.js | 55 +++++-------------
test/built-ins/Date/S15.9.3.1_A5_T5.js | 55 +++++-------------
test/built-ins/Date/S15.9.3.1_A5_T6.js | 55 +++++-------------
test/harness/assertRelativeDateMs.js | 80 ++++++++++++++++++++++++++
8 files changed, 185 insertions(+), 246 deletions(-)
create mode 100644 harness/assertRelativeDateMs.js
create mode 100644 test/harness/assertRelativeDateMs.js
diff --git a/harness/assertRelativeDateMs.js b/harness/assertRelativeDateMs.js
new file mode 100644
index 0000000000..20eb4b259c
--- /dev/null
+++ b/harness/assertRelativeDateMs.js
@@ -0,0 +1,21 @@
+// Copyright (C) 2015 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/**
+ * Verify that the given date object's Number representation describes the
+ * correct number of milliseconds since the Unix epoch relative to the local
+ * time zone (as interpreted at the specified date).
+ *
+ * @param {Date} date
+ * @param {Number} expectedMs
+ */
+function assertRelativeDateMs(date, expectedMs) {
+ var actualMs = date.valueOf();
+ var localOffset = date.getTimezoneOffset() * 60000;
+
+ if (actualMs - localOffset !== expectedMs) {
+ $ERROR(
+ 'Expected ' + date + ' to be ' + expectedMs +
+ ' milliseconds from the Unix epoch'
+ );
+ }
+}
diff --git a/test/built-ins/Date/S15.9.3.1_A5_T1.js b/test/built-ins/Date/S15.9.3.1_A5_T1.js
index a6cd4e11a6..04eeb2b185 100644
--- a/test/built-ins/Date/S15.9.3.1_A5_T1.js
+++ b/test/built-ins/Date/S15.9.3.1_A5_T1.js
@@ -1,7 +1,7 @@
// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
-
/*---
+esid: sec-date-constructor
info: >
The [[Value]] property of the newly constructed object
is set by following steps:
@@ -14,56 +14,29 @@ info: >
TimeClip(UTC(Result(11)))
es5id: 15.9.3.1_A5_T1
description: 2 arguments, (year, month)
-includes:
- - numeric_conversion.js
- - Date_constants.js
- - Date_library.js
+includes: [assertRelativeDateMs.js]
---*/
-if (-2211638400000 !== new Date(1899, 11).valueOf()) {
- $ERROR("#1: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1899, 11), -2211667200000);
-if (-2208960000000 !== new Date(1899, 12).valueOf()) {
- $ERROR("#2: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1899, 12), -2208988800000);
-if (-2208960000000 !== new Date(1900, 0).valueOf()) {
- $ERROR("#3: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1900, 0), -2208988800000);
-if (-2649600000 !== new Date(1969, 11).valueOf()) {
- $ERROR("#4: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1969, 11), -2678400000);
-if (28800000 !== new Date(1969, 12).valueOf()) {
- $ERROR("#5: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1969, 12), 0);
-if (28800000 !== new Date(1970, 0).valueOf()) {
- $ERROR("#6: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1970, 0), 0);
-if (944035200000 !== new Date(1999, 11).valueOf()) {
- $ERROR("#7: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1999, 11), 944006400000);
-if (946713600000 !== new Date(1999, 12).valueOf()) {
- $ERROR("#8: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1999, 12), 946684800000);
-if (946713600000 !== new Date(2000, 0).valueOf()) {
- $ERROR("#9: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2000, 0), 946684800000);
-if (4099795200000 !== new Date(2099, 11).valueOf()) {
- $ERROR("#10: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2099, 11), 4099766400000);
-if (4102473600000 !== new Date(2099, 12).valueOf()) {
- $ERROR("#11: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2099, 12), 4102444800000);
-if (4102473600000 !== new Date(2100, 0).valueOf()) {
- $ERROR("#12: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2100, 0), 4102444800000);
diff --git a/test/built-ins/Date/S15.9.3.1_A5_T2.js b/test/built-ins/Date/S15.9.3.1_A5_T2.js
index d090db6e23..d9e22b90e6 100644
--- a/test/built-ins/Date/S15.9.3.1_A5_T2.js
+++ b/test/built-ins/Date/S15.9.3.1_A5_T2.js
@@ -1,7 +1,7 @@
// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
-
/*---
+esid: sec-date-constructor
info: >
The [[Value]] property of the newly constructed object
is set by following steps:
@@ -14,56 +14,29 @@ info: >
TimeClip(UTC(Result(11)))
es5id: 15.9.3.1_A5_T2
description: 3 arguments, (year, month, date)
-includes:
- - numeric_conversion.js
- - Date_constants.js
- - Date_library.js
+includes: [assertRelativeDateMs.js]
---*/
-if (-2209046400000 !== new Date(1899, 11, 31).valueOf()) {
- $ERROR("#1: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1899, 11, 31), -2209075200000);
-if (-2208960000000 !== new Date(1899, 12, 1).valueOf()) {
- $ERROR("#2: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1899, 12, 1), -2208988800000);
-if (-2208960000000 !== new Date(1900, 0, 1).valueOf()) {
- $ERROR("#3: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1900, 0, 1), -2208988800000);
-if (-57600000 !== new Date(1969, 11, 31).valueOf()) {
- $ERROR("#4: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1969, 11, 31), -86400000);
-if (28800000 !== new Date(1969, 12, 1).valueOf()) {
- $ERROR("#5: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1969, 12, 1), 0);
-if (28800000 !== new Date(1970, 0, 1).valueOf()) {
- $ERROR("#6: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1970, 0, 1), 0);
-if (946627200000 !== new Date(1999, 11, 31).valueOf()) {
- $ERROR("#7: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1999, 11, 31), 946598400000);
-if (946713600000 !== new Date(1999, 12, 1).valueOf()) {
- $ERROR("#8: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1999, 12, 1), 946684800000);
-if (946713600000 !== new Date(2000, 0, 1).valueOf()) {
- $ERROR("#9: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2000, 0, 1), 946684800000);
-if (4102387200000 !== new Date(2099, 11, 31).valueOf()) {
- $ERROR("#10: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2099, 11, 31), 4102358400000);
-if (4102473600000 !== new Date(2099, 12, 1).valueOf()) {
- $ERROR("#11: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2099, 12, 1), 4102444800000);
-if (4102473600000 !== new Date(2100, 0, 1).valueOf()) {
- $ERROR("#12: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2100, 0, 1), 4102444800000);
diff --git a/test/built-ins/Date/S15.9.3.1_A5_T3.js b/test/built-ins/Date/S15.9.3.1_A5_T3.js
index 885c686027..61127083a4 100644
--- a/test/built-ins/Date/S15.9.3.1_A5_T3.js
+++ b/test/built-ins/Date/S15.9.3.1_A5_T3.js
@@ -1,7 +1,7 @@
// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
-
/*---
+esid: sec-date-constructor
info: >
The [[Value]] property of the newly constructed object
is set by following steps:
@@ -14,56 +14,29 @@ info: >
TimeClip(UTC(Result(11)))
es5id: 15.9.3.1_A5_T3
description: 4 arguments, (year, month, date, hours)
-includes:
- - numeric_conversion.js
- - Date_constants.js
- - Date_library.js
+includes: [assertRelativeDateMs.js]
---*/
-if (-2208963600000 !== new Date(1899, 11, 31, 23).valueOf()) {
- $ERROR("#1: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1899, 11, 31, 23), -2208992400000);
-if (-2208960000000 !== new Date(1899, 12, 1, 0).valueOf()) {
- $ERROR("#2: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1899, 12, 1, 0), -2208988800000);
-if (-2208960000000 !== new Date(1900, 0, 1, 0).valueOf()) {
- $ERROR("#3: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1900, 0, 1, 0), -2208988800000);
-if (25200000 !== new Date(1969, 11, 31, 23).valueOf()) {
- $ERROR("#4: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1969, 11, 31, 23), -3600000);
-if (28800000 !== new Date(1969, 12, 1, 0).valueOf()) {
- $ERROR("#5: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1969, 12, 1, 0), 0);
-if (28800000 !== new Date(1970, 0, 1, 0).valueOf()) {
- $ERROR("#6: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1970, 0, 1, 0), 0);
-if (946710000000 !== new Date(1999, 11, 31, 23).valueOf()) {
- $ERROR("#7: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1999, 11, 31, 23), 946681200000);
-if (946713600000 !== new Date(1999, 12, 1, 0).valueOf()) {
- $ERROR("#8: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1999, 12, 1, 0), 946684800000);
-if (946713600000 !== new Date(2000, 0, 1, 0).valueOf()) {
- $ERROR("#9: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2000, 0, 1, 0), 946684800000);
-if (4102470000000 !== new Date(2099, 11, 31, 23).valueOf()) {
- $ERROR("#10: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2099, 11, 31, 23), 4102441200000);
-if (4102473600000 !== new Date(2099, 12, 1, 0).valueOf()) {
- $ERROR("#11: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2099, 12, 1, 0), 4102444800000);
-if (4102473600000 !== new Date(2100, 0, 1, 0).valueOf()) {
- $ERROR("#12: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2100, 0, 1, 0), 4102444800000);
diff --git a/test/built-ins/Date/S15.9.3.1_A5_T4.js b/test/built-ins/Date/S15.9.3.1_A5_T4.js
index 29d9862385..8f6ad8022f 100644
--- a/test/built-ins/Date/S15.9.3.1_A5_T4.js
+++ b/test/built-ins/Date/S15.9.3.1_A5_T4.js
@@ -1,7 +1,7 @@
// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
-
/*---
+esid: sec-date-constructor
info: >
The [[Value]] property of the newly constructed object
is set by following steps:
@@ -14,56 +14,29 @@ info: >
TimeClip(UTC(Result(11)))
es5id: 15.9.3.1_A5_T4
description: 5 arguments, (year, month, date, hours, minutes)
-includes:
- - numeric_conversion.js
- - Date_constants.js
- - Date_library.js
+includes: [assertRelativeDateMs.js]
---*/
-if (-2208960060000 !== new Date(1899, 11, 31, 23, 59).valueOf()) {
- $ERROR("#1: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1899, 11, 31, 23, 59), -2208988860000);
-if (-2208960000000 !== new Date(1899, 12, 1, 0, 0).valueOf()) {
- $ERROR("#2: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1899, 12, 1, 0, 0), -2208988800000);
-if (-2208960000000 !== new Date(1900, 0, 1, 0, 0).valueOf()) {
- $ERROR("#3: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1900, 0, 1, 0, 0), -2208988800000);
-if (28740000 !== new Date(1969, 11, 31, 23, 59).valueOf()) {
- $ERROR("#4: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1969, 11, 31, 23, 59), -60000);
-if (28800000 !== new Date(1969, 12, 1, 0, 0).valueOf()) {
- $ERROR("#5: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1969, 12, 1, 0, 0), 0);
-if (28800000 !== new Date(1970, 0, 1, 0, 0).valueOf()) {
- $ERROR("#6: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1970, 0, 1, 0, 0), 0);
-if (946713540000 !== new Date(1999, 11, 31, 23, 59).valueOf()) {
- $ERROR("#7: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1999, 11, 31, 23, 59), 946684740000);
-if (946713600000 !== new Date(1999, 12, 1, 0, 0).valueOf()) {
- $ERROR("#8: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1999, 12, 1, 0, 0), 946684800000);
-if (946713600000 !== new Date(2000, 0, 1, 0, 0).valueOf()) {
- $ERROR("#9: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2000, 0, 1, 0, 0), 946684800000);
-if (4102473540000 !== new Date(2099, 11, 31, 23, 59).valueOf()) {
- $ERROR("#10: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2099, 11, 31, 23, 59), 4102444740000);
-if (4102473600000 !== new Date(2099, 12, 1, 0, 0).valueOf()) {
- $ERROR("#11: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2099, 12, 1, 0, 0), 4102444800000);
-if (4102473600000 !== new Date(2100, 0, 1, 0, 0).valueOf()) {
- $ERROR("#12: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2100, 0, 1, 0, 0), 4102444800000);
diff --git a/test/built-ins/Date/S15.9.3.1_A5_T5.js b/test/built-ins/Date/S15.9.3.1_A5_T5.js
index b820849988..283f33c772 100644
--- a/test/built-ins/Date/S15.9.3.1_A5_T5.js
+++ b/test/built-ins/Date/S15.9.3.1_A5_T5.js
@@ -1,7 +1,7 @@
// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
-
/*---
+esid: sec-date-constructor
info: >
The [[Value]] property of the newly constructed object
is set by following steps:
@@ -14,56 +14,29 @@ info: >
TimeClip(UTC(Result(11)))
es5id: 15.9.3.1_A5_T5
description: 6 arguments, (year, month, date, hours, minutes, seconds)
-includes:
- - numeric_conversion.js
- - Date_constants.js
- - Date_library.js
+includes: [assertRelativeDateMs.js]
---*/
-if (-2208960001000 !== new Date(1899, 11, 31, 23, 59, 59).valueOf()) {
- $ERROR("#1: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1899, 11, 31, 23, 59, 59), -2208988801000);
-if (-2208960000000 !== new Date(1899, 12, 1, 0, 0, 0).valueOf()) {
- $ERROR("#2: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1899, 12, 1, 0, 0, 0), -2208988800000);
-if (-2208960000000 !== new Date(1900, 0, 1, 0, 0, 0).valueOf()) {
- $ERROR("#3: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1900, 0, 1, 0, 0, 0), -2208988800000);
-if (28799000 !== new Date(1969, 11, 31, 23, 59, 59).valueOf()) {
- $ERROR("#4: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1969, 11, 31, 23, 59, 59), -1000);
-if (28800000 !== new Date(1969, 12, 1, 0, 0, 0).valueOf()) {
- $ERROR("#5: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1969, 12, 1, 0, 0, 0), 0);
-if (28800000 !== new Date(1970, 0, 1, 0, 0, 0).valueOf()) {
- $ERROR("#6: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1970, 0, 1, 0, 0, 0), 0);
-if (946713599000 !== new Date(1999, 11, 31, 23, 59, 59).valueOf()) {
- $ERROR("#7: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1999, 11, 31, 23, 59, 59), 946684799000);
-if (946713600000 !== new Date(1999, 12, 1, 0, 0, 0).valueOf()) {
- $ERROR("#8: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1999, 12, 1, 0, 0, 0), 946684800000);
-if (946713600000 !== new Date(2000, 0, 1, 0, 0, 0).valueOf()) {
- $ERROR("#9: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2000, 0, 1, 0, 0, 0), 946684800000);
-if (4102473599000 !== new Date(2099, 11, 31, 23, 59, 59).valueOf()) {
- $ERROR("#10: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2099, 11, 31, 23, 59, 59), 4102444799000);
-if (4102473600000 !== new Date(2099, 12, 1, 0, 0, 0).valueOf()) {
- $ERROR("#11: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2099, 12, 1, 0, 0, 0), 4102444800000);
-if (4102473600000 !== new Date(2100, 0, 1, 0, 0, 0).valueOf()) {
- $ERROR("#12: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2100, 0, 1, 0, 0, 0), 4102444800000);
diff --git a/test/built-ins/Date/S15.9.3.1_A5_T6.js b/test/built-ins/Date/S15.9.3.1_A5_T6.js
index 84550a6c3d..371c972116 100644
--- a/test/built-ins/Date/S15.9.3.1_A5_T6.js
+++ b/test/built-ins/Date/S15.9.3.1_A5_T6.js
@@ -1,7 +1,7 @@
// Copyright 2009 the Sputnik authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
-
/*---
+esid: sec-date-constructor
info: >
The [[Value]] property of the newly constructed object
is set by following steps:
@@ -14,56 +14,29 @@ info: >
TimeClip(UTC(Result(11)))
es5id: 15.9.3.1_A5_T6
description: 7 arguments, (year, month, date, hours, minutes, seconds, ms)
-includes:
- - numeric_conversion.js
- - Date_constants.js
- - Date_library.js
+includes: [assertRelativeDateMs.js]
---*/
-if (-2208960000001 !== new Date(1899, 11, 31, 23, 59, 59, 999).valueOf()) {
- $ERROR("#1: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1899, 11, 31, 23, 59, 59, 999), -2208988800001);
-if (-2208960000000 !== new Date(1899, 12, 1, 0, 0, 0, 0).valueOf()) {
- $ERROR("#2: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1899, 12, 1, 0, 0, 0, 0), -2208988800000);
-if (-2208960000000 !== new Date(1900, 0, 1, 0, 0, 0, 0).valueOf()) {
- $ERROR("#3: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1900, 0, 1, 0, 0, 0, 0), -2208988800000);
-if (28799999 !== new Date(1969, 11, 31, 23, 59, 59, 999).valueOf()) {
- $ERROR("#4: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1969, 11, 31, 23, 59, 59, 999), -1);
-if (28800000 !== new Date(1969, 12, 1, 0, 0, 0, 0).valueOf()) {
- $ERROR("#5: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1969, 12, 1, 0, 0, 0, 0), 0);
-if (28800000 !== new Date(1970, 0, 1, 0, 0, 0, 0).valueOf()) {
- $ERROR("#6: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1970, 0, 1, 0, 0, 0, 0), 0);
-if (946713599999 !== new Date(1999, 11, 31, 23, 59, 59, 999).valueOf()) {
- $ERROR("#7: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1999, 11, 31, 23, 59, 59, 999), 946684799999);
-if (946713600000 !== new Date(1999, 12, 1, 0, 0, 0, 0).valueOf()) {
- $ERROR("#8: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(1999, 12, 1, 0, 0, 0, 0), 946684800000);
-if (946713600000 !== new Date(2000, 0, 1, 0, 0, 0, 0).valueOf()) {
- $ERROR("#9: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2000, 0, 1, 0, 0, 0, 0), 946684800000);
-if (4102473599999 !== new Date(2099, 11, 31, 23, 59, 59, 999).valueOf()) {
- $ERROR("#10: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2099, 11, 31, 23, 59, 59, 999), 4102444799999);
-if (4102473600000 !== new Date(2099, 12, 1, 0, 0, 0, 0).valueOf()) {
- $ERROR("#11: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2099, 12, 1, 0, 0, 0, 0), 4102444800000);
-if (4102473600000 !== new Date(2100, 0, 1, 0, 0, 0, 0).valueOf()) {
- $ERROR("#12: Incorrect value of Date");
-}
+assertRelativeDateMs(new Date(2100, 0, 1, 0, 0, 0, 0), 4102444800000);
diff --git a/test/harness/assertRelativeDateMs.js b/test/harness/assertRelativeDateMs.js
new file mode 100644
index 0000000000..c8c08b3b67
--- /dev/null
+++ b/test/harness/assertRelativeDateMs.js
@@ -0,0 +1,80 @@
+// Copyright (C) 2016 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+description: >
+ Only passes when the provided date is exactly the specified number of
+ milliseconds from the Unix epoch
+includes: [assertRelativeDateMs.js]
+---*/
+
+var thrown;
+
+assertRelativeDateMs(new Date(1970, 0), 0);
+assertRelativeDateMs(new Date(1970, 0, 1, 0, 0, 0, 0), 0);
+assertRelativeDateMs(new Date(1970, 0, 1, 0, 0, 0, 1), 1);
+assertRelativeDateMs(new Date(1970, 0, 1, 0, 0, 0, -1), -1);
+assertRelativeDateMs(new Date(1970, 0, 1, 0, 0, 1, 0), 1000);
+assertRelativeDateMs(new Date(1970, 0, 1, 0, 0, -1, 0), -1000);
+assertRelativeDateMs(new Date(1970, 0, 1, 0, 2, 0, 0), 120000);
+assertRelativeDateMs(new Date(1970, 0, 1, 0, -2, 0, 0), -120000);
+assertRelativeDateMs(new Date(2016, 3, 12, 13, 21, 23, 24), 1460467283024);
+
+thrown = null;
+try {
+ assertRelativeDateMs(new Date(1), 0);
+} catch (err) {
+ thrown = err;
+}
+if (!thrown) {
+ $ERROR('Expected error, but no error was thrown.');
+} else if (thrown.constructor !== Test262Error) {
+ $ERROR('Expected error of type Test262Error.');
+}
+
+thrown = null;
+try {
+ assertRelativeDateMs(new Date(-1), 0);
+} catch (err) {
+ thrown = err;
+}
+if (!thrown) {
+ $ERROR('Expected error, but no error was thrown.');
+} else if (thrown.constructor !== Test262Error) {
+ $ERROR('Expected error of type Test262Error.');
+}
+
+thrown = null;
+try {
+ assertRelativeDateMs(new Date(1970, 0), 1);
+} catch (err) {
+ thrown = err;
+}
+if (!thrown) {
+ $ERROR('Expected error, but no error was thrown.');
+} else if (thrown.constructor !== Test262Error) {
+ $ERROR('Expected error of type Test262Error.');
+}
+
+thrown = null;
+try {
+ assertRelativeDateMs(new Date(1970, 0), -1);
+} catch (err) {
+ thrown = err;
+}
+if (!thrown) {
+ $ERROR('Expected error, but no error was thrown.');
+} else if (thrown.constructor !== Test262Error) {
+ $ERROR('Expected error of type Test262Error.');
+}
+
+thrown = null;
+try {
+ assertRelativeDateMs(new Date('invalid'), NaN);
+} catch (err) {
+ thrown = err;
+}
+if (!thrown) {
+ $ERROR('Expected error, but no error was thrown.');
+} else if (thrown.constructor !== Test262Error) {
+ $ERROR('Expected error of type Test262Error.');
+}
--
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