src/v8/test/cctest/test-date.cc - cobalt - Git at Google

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
 //     * Neither the name of Google Inc. nor the names of its
 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

 #include "src/date.h"
 #include "src/global-handles.h"
 #include "src/isolate.h"
 #include "src/v8.h"
 #include "test/cctest/cctest.h"

 namespace v8 {
 namespace internal {

 class DateCacheMock: public DateCache {
  public:
   struct Rule {
     int year, start_month, start_day, end_month, end_day, offset_sec;
   };

   DateCacheMock(int local_offset, Rule* rules, int rules_count)
       : local_offset_(local_offset), rules_(rules), rules_count_(rules_count) {}

  protected:
   virtual int GetDaylightSavingsOffsetFromOS(int64_t time_sec) {
     int days = DaysFromTime(time_sec * 1000);
     int time_in_day_sec = TimeInDay(time_sec * 1000, days) / 1000;
     int year, month, day;
     YearMonthDayFromDays(days, &year, &month, &day);
     Rule* rule = FindRuleFor(year, month, day, time_in_day_sec);
     return rule == NULL ? 0 : rule->offset_sec * 1000;
   }


   virtual int GetLocalOffsetFromOS() {
     return local_offset_;
   }

  private:
   Rule* FindRuleFor(int year, int month, int day, int time_in_day_sec) {
     Rule* result = NULL;
     for (int i = 0; i < rules_count_; i++)
       if (Match(&rules_[i], year, month, day, time_in_day_sec)) {
         result = &rules_[i];
       }
     return result;
   }


   bool Match(Rule* rule, int year, int month, int day, int time_in_day_sec) {
     if (rule->year != 0 && rule->year != year) return false;
     if (rule->start_month > month) return false;
     if (rule->end_month < month) return false;
     int start_day = ComputeRuleDay(year, rule->start_month, rule->start_day);
     if (rule->start_month == month && start_day > day) return false;
     if (rule->start_month == month && start_day == day &&
         2 * 3600 > time_in_day_sec)
       return false;
     int end_day = ComputeRuleDay(year, rule->end_month, rule->end_day);
     if (rule->end_month == month && end_day < day) return false;
     if (rule->end_month == month && end_day == day &&
         2 * 3600 <= time_in_day_sec)
       return false;
     return true;
   }


   int ComputeRuleDay(int year, int month, int day) {
     if (day != 0) return day;
     int days = DaysFromYearMonth(year, month);
     // Find the first Sunday of the month.
     while (Weekday(days + day) != 6) day++;
     return day + 1;
   }

   int local_offset_;
   Rule* rules_;
   int rules_count_;
 };

 static int64_t TimeFromYearMonthDay(DateCache* date_cache,
                                     int year,
                                     int month,
                                     int day) {
   int64_t result = date_cache->DaysFromYearMonth(year, month);
   return (result + day - 1) * DateCache::kMsPerDay;
 }


 static void CheckDST(int64_t time) {
   Isolate* isolate = CcTest::i_isolate();
   DateCache* date_cache = isolate->date_cache();
   int64_t actual = date_cache->ToLocal(time);
   int64_t expected = time + date_cache->GetLocalOffsetFromOS() +
                      date_cache->GetDaylightSavingsOffsetFromOS(time / 1000);
   CHECK_EQ(actual, expected);
 }


 TEST(DaylightSavingsTime) {
   LocalContext context;
   v8::Isolate* isolate = context->GetIsolate();
   v8::HandleScope scope(isolate);
   DateCacheMock::Rule rules[] = {
     {0, 2, 0, 10, 0, 3600},  // DST from March to November in any year.
     {2010, 2, 0, 7, 20, 3600},  // DST from March to August 20 in 2010.
     {2010, 7, 20, 8, 10, 0},  // No DST from August 20 to September 10 in 2010.
     {2010, 8, 10, 10, 0, 3600},  // DST from September 10 to November in 2010.
   };

   int local_offset_ms = -36000000;  // -10 hours.

   DateCacheMock* date_cache =
     new DateCacheMock(local_offset_ms, rules, arraysize(rules));

   reinterpret_cast<Isolate*>(isolate)->set_date_cache(date_cache);

   int64_t start_of_2010 = TimeFromYearMonthDay(date_cache, 2010, 0, 1);
   int64_t start_of_2011 = TimeFromYearMonthDay(date_cache, 2011, 0, 1);
   int64_t august_20 = TimeFromYearMonthDay(date_cache, 2010, 7, 20);
   int64_t september_10 = TimeFromYearMonthDay(date_cache, 2010, 8, 10);
   CheckDST((august_20 + september_10) / 2);
   CheckDST(september_10);
   CheckDST(september_10 + 2 * 3600);
   CheckDST(september_10 + 2 * 3600 - 1000);
   CheckDST(august_20 + 2 * 3600);
   CheckDST(august_20 + 2 * 3600 - 1000);
   CheckDST(august_20);
   // Check each day of 2010.
   for (int64_t time = start_of_2011 + 2 * 3600;
        time >= start_of_2010;
        time -= DateCache::kMsPerDay) {
     CheckDST(time);
     CheckDST(time - 1000);
     CheckDST(time + 1000);
   }
   // Check one day from 2010 to 2100.
   for (int year = 2100; year >= 2010; year--) {
     CheckDST(TimeFromYearMonthDay(date_cache, year, 5, 5));
   }
   CheckDST((august_20 + september_10) / 2);
   CheckDST(september_10);
   CheckDST(september_10 + 2 * 3600);
   CheckDST(september_10 + 2 * 3600 - 1000);
   CheckDST(august_20 + 2 * 3600);
   CheckDST(august_20 + 2 * 3600 - 1000);
   CheckDST(august_20);
 }

 namespace {
 int legacy_parse_count = 0;
 void DateParseLegacyCounterCallback(v8::Isolate* isolate,
                                     v8::Isolate::UseCounterFeature feature) {
   if (feature == v8::Isolate::kLegacyDateParser) legacy_parse_count++;
 }
 }  // anonymous namespace

 TEST(DateParseLegacyUseCounter) {
   CcTest::InitializeVM();
   v8::HandleScope scope(CcTest::isolate());
   LocalContext context;
   CcTest::isolate()->SetUseCounterCallback(DateParseLegacyCounterCallback);
   CHECK_EQ(0, legacy_parse_count);
   CompileRun("Date.parse('2015-02-31')");
   CHECK_EQ(0, legacy_parse_count);
   CompileRun("Date.parse('2015-02-31T11:22:33.444Z01:23')");
   CHECK_EQ(0, legacy_parse_count);
   CompileRun("Date.parse('2015-02-31T11:22:33.444')");
   CHECK_EQ(0, legacy_parse_count);
   CompileRun("Date.parse('2000 01 01')");
   CHECK_EQ(1, legacy_parse_count);
   CompileRun("Date.parse('2015-02-31T11:22:33.444     ')");
   CHECK_EQ(1, legacy_parse_count);
 }

 #ifdef V8_INTL_SUPPORT
 TEST(DateCacheVersion) {
   FLAG_allow_natives_syntax = true;
   v8::Isolate* isolate = CcTest::isolate();
   v8::Isolate::Scope isolate_scope(isolate);
   v8::HandleScope scope(isolate);
   v8::Local<v8::Context> context = v8::Context::New(isolate);
   v8::Context::Scope context_scope(context);
   v8::Local<v8::Number> date_cache_version =
       v8::Local<v8::Number>::Cast(CompileRun("%DateCacheVersion()"));

   CHECK(date_cache_version->IsNumber());
   CHECK_EQ(0.0, date_cache_version->NumberValue(context).FromMaybe(-1.0));

   v8::Date::DateTimeConfigurationChangeNotification(isolate);

   date_cache_version =
       v8::Local<v8::Number>::Cast(CompileRun("%DateCacheVersion()"));
   CHECK(date_cache_version->IsNumber());
   CHECK_EQ(1.0, date_cache_version->NumberValue(context).FromMaybe(-1.0));
 }
 #endif  // V8_INTL_SUPPORT

 }  // namespace internal
 }  // namespace v8
	// Copyright 2012 the V8 project authors. All rights reserved.
	// Redistribution and use in source and binary forms, with or without
	// modification, are permitted provided that the following conditions are
	// met:
	//
	// * Redistributions of source code must retain the above copyright
	// notice, this list of conditions and the following disclaimer.
	// * Redistributions in binary form must reproduce the above
	// copyright notice, this list of conditions and the following
	// disclaimer in the documentation and/or other materials provided
	// with the distribution.
	// * Neither the name of Google Inc. nor the names of its
	// contributors may be used to endorse or promote products derived
	// from this software without specific prior written permission.
	//
	// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
	// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
	// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
	// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
	// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
	// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
	// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
	// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
	// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
	// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
	// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

	#include "src/date.h"
	#include "src/global-handles.h"
	#include "src/isolate.h"
	#include "src/v8.h"
	#include "test/cctest/cctest.h"

	namespace v8 {
	namespace internal {

	class DateCacheMock: public DateCache {
	public:
	struct Rule {
	int year, start_month, start_day, end_month, end_day, offset_sec;
	};

	DateCacheMock(int local_offset, Rule* rules, int rules_count)
	: local_offset_(local_offset), rules_(rules), rules_count_(rules_count) {}

	protected:
	virtual int GetDaylightSavingsOffsetFromOS(int64_t time_sec) {
	int days = DaysFromTime(time_sec * 1000);
	int time_in_day_sec = TimeInDay(time_sec * 1000, days) / 1000;
	int year, month, day;
	YearMonthDayFromDays(days, &year, &month, &day);
	Rule* rule = FindRuleFor(year, month, day, time_in_day_sec);
	return rule == NULL ? 0 : rule->offset_sec * 1000;
	}


	virtual int GetLocalOffsetFromOS() {
	return local_offset_;
	}

	private:
	Rule* FindRuleFor(int year, int month, int day, int time_in_day_sec) {
	Rule* result = NULL;
	for (int i = 0; i < rules_count_; i++)
	if (Match(&rules_[i], year, month, day, time_in_day_sec)) {
	result = &rules_[i];
	}
	return result;
	}


	bool Match(Rule* rule, int year, int month, int day, int time_in_day_sec) {
	if (rule->year != 0 && rule->year != year) return false;
	if (rule->start_month > month) return false;
	if (rule->end_month < month) return false;
	int start_day = ComputeRuleDay(year, rule->start_month, rule->start_day);
	if (rule->start_month == month && start_day > day) return false;
	if (rule->start_month == month && start_day == day &&
	2 * 3600 > time_in_day_sec)
	return false;
	int end_day = ComputeRuleDay(year, rule->end_month, rule->end_day);
	if (rule->end_month == month && end_day < day) return false;
	if (rule->end_month == month && end_day == day &&
	2 * 3600 <= time_in_day_sec)
	return false;
	return true;
	}


	int ComputeRuleDay(int year, int month, int day) {
	if (day != 0) return day;
	int days = DaysFromYearMonth(year, month);
	// Find the first Sunday of the month.
	while (Weekday(days + day) != 6) day++;
	return day + 1;
	}

	int local_offset_;
	Rule* rules_;
	int rules_count_;
	};

	static int64_t TimeFromYearMonthDay(DateCache* date_cache,
	int year,
	int month,
	int day) {
	int64_t result = date_cache->DaysFromYearMonth(year, month);
	return (result + day - 1) * DateCache::kMsPerDay;
	}


	static void CheckDST(int64_t time) {
	Isolate* isolate = CcTest::i_isolate();
	DateCache* date_cache = isolate->date_cache();
	int64_t actual = date_cache->ToLocal(time);
	int64_t expected = time + date_cache->GetLocalOffsetFromOS() +
	date_cache->GetDaylightSavingsOffsetFromOS(time / 1000);
	CHECK_EQ(actual, expected);
	}


	TEST(DaylightSavingsTime) {
	LocalContext context;
	v8::Isolate* isolate = context->GetIsolate();
	v8::HandleScope scope(isolate);
	DateCacheMock::Rule rules[] = {
	{0, 2, 0, 10, 0, 3600}, // DST from March to November in any year.
	{2010, 2, 0, 7, 20, 3600}, // DST from March to August 20 in 2010.
	{2010, 7, 20, 8, 10, 0}, // No DST from August 20 to September 10 in 2010.
	{2010, 8, 10, 10, 0, 3600}, // DST from September 10 to November in 2010.
	};

	int local_offset_ms = -36000000; // -10 hours.

	DateCacheMock* date_cache =
	new DateCacheMock(local_offset_ms, rules, arraysize(rules));

	reinterpret_cast<Isolate*>(isolate)->set_date_cache(date_cache);

	int64_t start_of_2010 = TimeFromYearMonthDay(date_cache, 2010, 0, 1);
	int64_t start_of_2011 = TimeFromYearMonthDay(date_cache, 2011, 0, 1);
	int64_t august_20 = TimeFromYearMonthDay(date_cache, 2010, 7, 20);
	int64_t september_10 = TimeFromYearMonthDay(date_cache, 2010, 8, 10);
	CheckDST((august_20 + september_10) / 2);
	CheckDST(september_10);
	CheckDST(september_10 + 2 * 3600);
	CheckDST(september_10 + 2 * 3600 - 1000);
	CheckDST(august_20 + 2 * 3600);
	CheckDST(august_20 + 2 * 3600 - 1000);
	CheckDST(august_20);
	// Check each day of 2010.
	for (int64_t time = start_of_2011 + 2 * 3600;
	time >= start_of_2010;
	time -= DateCache::kMsPerDay) {
	CheckDST(time);
	CheckDST(time - 1000);
	CheckDST(time + 1000);
	}
	// Check one day from 2010 to 2100.
	for (int year = 2100; year >= 2010; year--) {
	CheckDST(TimeFromYearMonthDay(date_cache, year, 5, 5));
	}
	CheckDST((august_20 + september_10) / 2);
	CheckDST(september_10);
	CheckDST(september_10 + 2 * 3600);
	CheckDST(september_10 + 2 * 3600 - 1000);
	CheckDST(august_20 + 2 * 3600);
	CheckDST(august_20 + 2 * 3600 - 1000);
	CheckDST(august_20);
	}

	namespace {
	int legacy_parse_count = 0;
	void DateParseLegacyCounterCallback(v8::Isolate* isolate,
	v8::Isolate::UseCounterFeature feature) {
	if (feature == v8::Isolate::kLegacyDateParser) legacy_parse_count++;
	}
	} // anonymous namespace

	TEST(DateParseLegacyUseCounter) {
	CcTest::InitializeVM();
	v8::HandleScope scope(CcTest::isolate());
	LocalContext context;
	CcTest::isolate()->SetUseCounterCallback(DateParseLegacyCounterCallback);
	CHECK_EQ(0, legacy_parse_count);
	CompileRun("Date.parse('2015-02-31')");
	CHECK_EQ(0, legacy_parse_count);
	CompileRun("Date.parse('2015-02-31T11:22:33.444Z01:23')");
	CHECK_EQ(0, legacy_parse_count);
	CompileRun("Date.parse('2015-02-31T11:22:33.444')");
	CHECK_EQ(0, legacy_parse_count);
	CompileRun("Date.parse('2000 01 01')");
	CHECK_EQ(1, legacy_parse_count);
	CompileRun("Date.parse('2015-02-31T11:22:33.444 ')");
	CHECK_EQ(1, legacy_parse_count);
	}

	#ifdef V8_INTL_SUPPORT
	TEST(DateCacheVersion) {
	FLAG_allow_natives_syntax = true;
	v8::Isolate* isolate = CcTest::isolate();
	v8::Isolate::Scope isolate_scope(isolate);
	v8::HandleScope scope(isolate);
	v8::Local<v8::Context> context = v8::Context::New(isolate);
	v8::Context::Scope context_scope(context);
	v8::Local<v8::Number> date_cache_version =
	v8::Local<v8::Number>::Cast(CompileRun("%DateCacheVersion()"));

	CHECK(date_cache_version->IsNumber());
	CHECK_EQ(0.0, date_cache_version->NumberValue(context).FromMaybe(-1.0));

	v8::Date::DateTimeConfigurationChangeNotification(isolate);

	date_cache_version =
	v8::Local<v8::Number>::Cast(CompileRun("%DateCacheVersion()"));
	CHECK(date_cache_version->IsNumber());
	CHECK_EQ(1.0, date_cache_version->NumberValue(context).FromMaybe(-1.0));
	}
	#endif // V8_INTL_SUPPORT

	} // namespace internal
	} // namespace v8