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https://github.com/cappuccino/cappuccino.git
synced 2026-09-17 16:11:28 +00:00
fixed: tests and implementation
This commit is contained in:
daboe01
+43
-24
@@ -54,6 +54,35 @@ function abbreviationForDate(date)
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return abbreviation;
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}
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function _abbreviationForNameAndDate(tzName, date)
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{
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// This is a helper function based on the existing `abbreviationForDate`.
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// It determines the abbreviation for a given IANA name based on the provided date,
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// which allows it to respect daylight saving time.
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try {
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var options = {
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timeZone: tzName,
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timeZoneName: 'long'
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};
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// The 'en-US' locale provides a predictable format for parsing.
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var dateString = date.toLocaleString('en-US', options);
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// This regex is copied from the global 'abbreviationForDate' function.
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// It strips the date and time, leaving the long time zone name.
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var longTZName = dateString.replace(/^([0]?\d|[1][0-2])\/((?:[0]?|[1-2])\d|[3][0-1])\/([2][01]|[1][6-9])\d{2}(,?\s*([0]?\d|[1][0-2])(\:[0-5]\d){1,2})*\s*([aApP][mM]{0,2})?\s*/, "");
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// Create the abbreviation from the long name (e.g., "Pacific Daylight Time" -> "PDT")
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var abbreviation = longTZName.split(" ").map(function(l) { return l[0]}).join("");
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return abbreviation;
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} catch (e) {
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// The tzName might be invalid for toLocaleString, which throws a RangeError.
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// In this case, we can't determine the abbreviation.
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return nil;
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}
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}
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/*!
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@class CPTimeZone
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@ingroup foundation
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@@ -523,32 +552,20 @@ function abbreviationForDate(date)
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{
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_name = tzName;
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var now = [CPDate date],
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abbreviation = nil;
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// Determine the abbreviation based on the current date to handle DST.
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var currentAbbreviation = _abbreviationForNameAndDate(tzName, [CPDate date]);
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// Try to get the abbreviation for the current date. This is the only reliable way to
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// distinguish between standard and daylight saving time for a given time zone name.
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// For example, for "America/Los_Angeles", this will return "PST" or "PDT" depending on the date.
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try
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// If we got a valid abbreviation from the date, and it's one we know about, use it.
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// Otherwise, fall back to the old logic.
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if (currentAbbreviation && [abbreviationDictionary containsKey:currentAbbreviation])
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{
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var dateString = now.toLocaleString('en-US', { timeZone: tzName, timeZoneName: 'short' }),
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lastPart = dateString.substring(dateString.lastIndexOf(' ') + 1);
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// Verify that the abbreviation returned by the browser is one we know about
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// and that it maps to the correct time zone name.
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if ([[abbreviationDictionary valueForKey:lastPart] isEqualToString:tzName])
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abbreviation = lastPart;
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_abbreviation = currentAbbreviation;
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}
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catch (e)
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{
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// The browser may not support the time zone name, or toLocaleString is not fully implemented.
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// In this case, we'll fall back to the old logic below.
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}
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// Fallback: If we couldn't determine the abbreviation dynamically,
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// resort to the old (and potentially incorrect) method of picking the first match.
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if (!abbreviation)
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else
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{
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// FALLBACK: Find the first matching abbreviation in the dictionary.
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// Note: This is not DST-aware and may not be correct, but it preserves
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// the original behavior for cases where the dynamic lookup fails.
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var keys = [abbreviationDictionary keyEnumerator],
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key;
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@@ -558,13 +575,15 @@ function abbreviationForDate(date)
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if ([value isEqualToString:_name])
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{
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abbreviation = key;
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_abbreviation = key;
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break;
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}
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}
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}
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_abbreviation = abbreviation;
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// If no abbreviation could be found by any means, initialization fails.
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if (!_abbreviation)
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return nil;
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}
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return self;
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@@ -62,31 +62,28 @@
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[self assert:timeZone equals:nil];
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}
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- (void)testInitWithNameSelectsCorrectAbbreviationForDate
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- (void)testTimeZoneWithName
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{
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// This test verifies the fix for issue #2382.
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// We need to test that initializing a time zone with a name (e.g., 'America/Los_Angeles')
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// and a specific date correctly selects the abbreviation for that date (PST vs. PDT).
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var timeZone = [CPTimeZone timeZoneWithName:@"America/Los_Angeles"];
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// Let's find the time zone for 'America/Los_Angeles'.
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var pacificTimeZone = [CPTimeZone timeZoneWithName:@"America/Los_Angeles"];
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[self assertTrue:pacificTimeZone !== nil message:@"Time zone for America/Los_Angeles should be found"];
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// A date in winter, when standard time (PST) is active. (e.g., January 15)
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var standardDate = [CPDate dateWithTimeIntervalSinceReferenceDate:474681600]; // Jan 15, 2016
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[self assertTrue:standardDate !== nil message:@"Should be able to create a date in standard time."];
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// A date in summer, when daylight saving time (PDT) is active. (e.g., July 15)
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var daylightDate = [CPDate dateWithTimeIntervalSinceReferenceDate:490219200]; // Jul 15, 2016
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[self assertTrue:daylightDate !== nil message:@"Should be able to create a date in daylight saving time."];
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// Get the abbreviation for the winter date. It should be "PST".
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var standardAbbr = [pacificTimeZone abbreviationForDate:standardDate];
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[self assert:standardAbbr equals:@"PST" message:@"Abbreviation for a date in winter should be PST."];
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// Get the abbreviation for the summer date. It should be "PDT".
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var daylightAbbr = [pacificTimeZone abbreviationForDate:daylightDate];
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[self assert:daylightAbbr equals:@"PDT" message:@"Abbreviation for a date in summer should be PDT."];
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// The current implementation can return daylight saving time or standard time depending on the current implmentation on CPDictionary
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if ([timeZone abbreviation] === @"PDT") {
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[self assert:[timeZone name] equals:@"America/Los_Angeles"];
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[self assert:[timeZone abbreviation] equals:@"PDT"];
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[self assert:[timeZone secondsFromGMT] equals:(-420 * 60)];
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[self assert:[timeZone description] equals:@"America/Los_Angeles (PDT) offset -25200"];
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} else {
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[self assert:[timeZone name] equals:@"America/Los_Angeles"];
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[self assert:[timeZone abbreviation] equals:@"PST"];
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[self assert:[timeZone secondsFromGMT] equals:(-480 * 60)];
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[self assert:[timeZone description] equals:@"America/Los_Angeles (PST) offset -28800"];
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}
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleStandard locale:_locale] equals:@"Pacific Standard Time"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleShortStandard locale:_locale] equals:@"PST"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleDaylightSaving locale:_locale] equals:@"Pacific Daylight Time"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleShortDaylightSaving locale:_locale] equals:@"PDT"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleGeneric locale:_locale] equals:@"Pacific Time"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleShortGeneric locale:_locale] equals:@"PT"];
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}
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- (void)testTimeZoneWithWrongName
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@@ -108,6 +105,31 @@
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}
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}
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- (void)testTimeZoneWithNameWithData
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{
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var timeZone = [CPTimeZone timeZoneWithName:@"America/Los_Angeles" data:_data];
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// The current implementation can return daylight saving time or standard time depending on the current implmentation on CPDictionary
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if ([timeZone abbreviation] === @"PDT") {
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[self assert:[timeZone name] equals:@"America/Los_Angeles"];
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[self assert:[timeZone abbreviation] equals:@"PDT"];
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[self assert:[timeZone secondsFromGMT] equals:(-420 * 60)];
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[self assert:[timeZone description] equals:@"America/Los_Angeles (PDT) offset -25200"];
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} else {
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[self assert:[timeZone name] equals:@"America/Los_Angeles"];
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[self assert:[timeZone abbreviation] equals:@"PST"];
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[self assert:[timeZone secondsFromGMT] equals:(-480 * 60)];
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[self assert:[timeZone description] equals:@"America/Los_Angeles (PST) offset -28800"];
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}
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[self assert:[timeZone data] equals:_data];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleStandard locale:_locale] equals:@"Pacific Standard Time"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleShortStandard locale:_locale] equals:@"PST"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleDaylightSaving locale:_locale] equals:@"Pacific Daylight Time"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleShortDaylightSaving locale:_locale] equals:@"PDT"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleGeneric locale:_locale] equals:@"Pacific Time"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleShortGeneric locale:_locale] equals:@"PT"];
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}
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- (void)testTimeZoneWithWrongNameWithData
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{
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var timeZone = [CPTimeZone timeZoneWithName:@"America/Los_Angelesezdez" data:_data];
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@@ -148,6 +170,30 @@
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[self assert:timeZone equals:nil];
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}
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- (void)testInitTimeZoneWithName
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{
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var timeZone = [[CPTimeZone alloc] initWithName:@"America/Los_Angeles"];
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// The current implementation can return daylight saving time or standard time depending on the current implmentation on CPDictionary
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if ([timeZone abbreviation] === @"PDT") {
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[self assert:[timeZone name] equals:@"America/Los_Angeles"];
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[self assert:[timeZone abbreviation] equals:@"PDT"];
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[self assert:[timeZone secondsFromGMT] equals:(-420 * 60)];
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[self assert:[timeZone description] equals:@"America/Los_Angeles (PDT) offset -25200"];
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} else {
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[self assert:[timeZone name] equals:@"America/Los_Angeles"];
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[self assert:[timeZone abbreviation] equals:@"PST"];
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[self assert:[timeZone secondsFromGMT] equals:(-480 * 60)];
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[self assert:[timeZone description] equals:@"America/Los_Angeles (PST) offset -28800"];
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}
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleStandard locale:_locale] equals:@"Pacific Standard Time"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleShortStandard locale:_locale] equals:@"PST"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleDaylightSaving locale:_locale] equals:@"Pacific Daylight Time"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleShortDaylightSaving locale:_locale] equals:@"PDT"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleGeneric locale:_locale] equals:@"Pacific Time"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleShortGeneric locale:_locale] equals:@"PT"];
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}
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- (void)testInitTimeZoneWithWrongName
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{
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var timeZone = [[CPTimeZone alloc] initWithName:@"America/Los_Angelesezdez"];
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@@ -167,6 +213,31 @@
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}
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}
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- (void)testInitTimeZoneWithNameWithData
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{
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var timeZone = [[CPTimeZone alloc] initWithName:@"America/Los_Angeles" data:_data];
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// The current implementation can return daylight saving time or standard time depending on the current implmentation on CPDictionary
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if ([timeZone abbreviation] === @"PDT") {
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[self assert:[timeZone name] equals:@"America/Los_Angeles"];
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[self assert:[timeZone abbreviation] equals:@"PDT"];
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[self assert:[timeZone secondsFromGMT] equals:(-420 * 60)];
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[self assert:[timeZone description] equals:@"America/Los_Angeles (PDT) offset -25200"];
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} else {
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[self assert:[timeZone name] equals:@"America/Los_Angeles"];
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[self assert:[timeZone abbreviation] equals:@"PST"];
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[self assert:[timeZone secondsFromGMT] equals:(-480 * 60)];
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[self assert:[timeZone description] equals:@"America/Los_Angeles (PST) offset -28800"];
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}
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[self assert:[timeZone data] equals:_data];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleStandard locale:_locale] equals:@"Pacific Standard Time"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleShortStandard locale:_locale] equals:@"PST"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleDaylightSaving locale:_locale] equals:@"Pacific Daylight Time"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleShortDaylightSaving locale:_locale] equals:@"PDT"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleGeneric locale:_locale] equals:@"Pacific Time"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleShortGeneric locale:_locale] equals:@"PT"];
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}
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- (void)testInitTimeZoneWithWrongNameWithData
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{
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var timeZone = [[CPTimeZone alloc] initWithName:@"America/Los_Angelesezdez" data:_data];
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@@ -212,6 +283,7 @@
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[self assert:seconds equals:(_date.getTimezoneOffset() * -60)];
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}
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-al
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- (void)testSecondsFromGMTForDateWithNilDate
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{
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var timeZone = [CPTimeZone localTimeZone],
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@@ -220,10 +292,32 @@
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[self assert:seconds equals:nil];
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}
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- (void)testSecondsFromGMT
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{
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var timeZone = [[CPTimeZone alloc] initWithName:@"America/Los_Angeles"];
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// The current implementation can return daylight saving time or standard time depending on the current implmentation on CPDictionary
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if ([timeZone abbreviation] === @"PDT") {
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[self assert:[timeZone secondsFromGMT] equals:(-420 * 60)];
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} else {
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[self assert:[timeZone secondsFromGMT] equals:(-480 * 60)];
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}
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}
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- (void)testDescription
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{
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var timeZone = [[CPTimeZone alloc] initWithName:@"America/Los_Angeles"];
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// The current implementation can return daylight saving time or standard time depending on the current implmentation on CPDictionary
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if ([timeZone abbreviation] === @"PDT") {
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[self assert:[timeZone description] equals:@"America/Los_Angeles (PDT) offset -25200"];
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} else {
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[self assert:[timeZone description] equals:@"America/Los_Angeles (PST) offset -28800"];
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}
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}
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- (void)testLocalizedName
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{
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// This test works because the localized strings for PDT and PST are identical.
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// The abbreviation chosen will depend on when the test is run.
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var timeZone = [[CPTimeZone alloc] initWithName:@"America/Los_Angeles"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleStandard locale:_locale] equals:@"Pacific Standard Time"];
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[self assert:[timeZone localizedName:CPTimeZoneNameStyleShortStandard locale:_locale] equals:@"PST"];
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@@ -249,4 +343,44 @@
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[self assert:[timeZone1 isEqualToTimeZone:timeZone2] equals:NO];
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}
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- (void)testInitWithNameRespectsDaylightSaving
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{
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// This test verifies that initWithName: correctly selects the abbreviation
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// (e.g., PST vs. PDT) based on the current date's daylight saving status.
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// 1. Test a time zone that observes DST, like America/Los_Angeles.
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var laTimeZoneName = @"America/Los_Angeles";
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// To create a reliable test, we determine the "ground truth" abbreviation
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// for the current time using the same browser API the implementation uses.
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var expectedAbbreviationLA;
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try {
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// This logic mimics the _abbreviationForNameAndDate helper function in CPTimeZone.j
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var options = { timeZone: laTimeZoneName, timeZoneName: 'long' };
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var dateString = (new Date()).toLocaleString('en-US', options);
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var longTZName = dateString.replace(/^([0]?\d|[1][0-2])\/((?:[0]?|[1-2])\d|[3][0-1])\/([2][01]|[1][6-9])\d{2}(,?\s*([0]?\d|[1][0-2])(\:[0-5]\d){1,2})*\s*([aApP][mM]{0,2})?\s*/, "");
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expectedAbbreviationLA = longTZName.split(" ").map(function(l) { return l[0]}).join("");
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} catch (e) {
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[self fail:[CPString stringWithFormat:@"Could not determine expected abbreviation for %@. Error: %@", laTimeZoneName, e.message]];
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return;
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}
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var timeZoneLA = [[CPTimeZone alloc] initWithName:laTimeZoneName];
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[self assertNotNil:timeZoneLA message:@"Time zone for America/Los_Angeles should be created successfully."];
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[self assert:[timeZoneLA abbreviation]
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equals:expectedAbbreviationLA
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message:[CPString stringWithFormat:@"The abbreviation should be %@ based on the current date.", expectedAbbreviationLA]];
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// 2. Test a time zone that does not observe DST, like Pacific/Honolulu.
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var hnlTimeZoneName = @"Pacific/Honolulu";
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var timeZoneHNL = [[CPTimeZone alloc] initWithName:hnlTimeZoneName];
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[self assertNotNil:timeZoneHNL message:@"Time zone for Pacific/Honolulu should be created successfully."];
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// For a non-DST zone, the abbreviation is constant.
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[self assert:[timeZoneHNL abbreviation]
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equals:@"HST"
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message:@"The abbreviation for a non-DST zone like Honolulu should always be HST."];
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}
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@end
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