Enable more specs for core Time methods

Author: adambeynon

opal/corelib/time.rb

@@ -121,7 +121,11 @@ def +(other)
 
     other = Opal.coerce_to other, Integer, :to_int
 
-    `new Date(self.getTime() + (other * 1000))`
+    %x{
+      var result = new Date(self.getTime() + (other * 1000));
+      result.tz_offset = self.tz_offset;
+      return result;
+    }
   end
 
   def -(other)
@@ -130,7 +134,11 @@ def -(other)
     else
       other = Opal.coerce_to other, Integer, :to_int
 
-      `new Date(self.getTime() - (other * 1000))`
+      %x{
+        var result = new Date(self.getTime() - (other * 1000));
+        result.tz_offset = self.tz_offset;
+        return result;
+      }
     end
   end
 
@@ -171,13 +179,11 @@ def hour
   end
 
   def inspect
-    %x{
-      if (self.tz_offset == 0) {
-        return #{strftime '%Y-%m-%d %H:%M:%S UTC'};
-      } else {
-        return #{strftime '%Y-%m-%d %H:%M:%S %z'};
-      }
-    }
+    if utc?
+      strftime '%Y-%m-%d %H:%M:%S UTC'
+    else
+      strftime '%Y-%m-%d %H:%M:%S %z'
+    end
   end
 
   alias mday day
@@ -492,6 +498,10 @@ def utc?
     `self.tz_offset == 0`
   end
 
+  def utc_offset
+    `self.getTimezoneOffset() * -60`
+  end
+
   def wday
     `self.getDay()`
   end

spec/opal/filters/bugs/time.rb

@@ -1,4 +1,55 @@
 opal_filter "Time" do
+  fails "Time.gm ignores fractional seconds if a passed fractional number of microseconds"
+  fails "Time.gm ignores fractional seconds if a passed whole number of microseconds"
+  fails "Time.gm handles fractional microseconds as a Rational"
+  fails "Time.gm handles fractional microseconds as a Float"
+  fails "Time.gm handles microseconds"
+  fails "Time.gm handles float arguments"
+  fails "Time.gm handles string arguments"
+  fails "Time.gm returns subclass instances"
+  fails "Time.gm raises ArgumentError when given 11 arguments"
+  fails "Time.gm raises ArgumentError when given 9 arguments"
+  fails "Time.gm handles fractional seconds as a Rational"
+  fails "Time.gm handles fractional seconds as a Float"
+  fails "Time.gm coerces the second with #to_int"
+  fails "Time.gm coerces the minute with #to_int"
+  fails "Time.gm coerces the hour with #to_int"
+  fails "Time.gm coerces the day with #to_int"
+  fails "Time.gm coerces the month with #to_int"
+  fails "Time.gm coerces the month with #to_str"
+  fails "Time.gm handles a String month given as a short month name"
+  fails "Time.gm coerces the year with #to_int"
+  fails "Time.gm accepts nil month, day, hour, minute, and second"
+  fails "Time.gm creates a time based on given C-style gmtime arguments, interpreted as UTC (GMT)"
+  fails "Time.gm creates a time based on given values, interpreted as UTC (GMT)"
+
+  fails "Time.local ignores fractional seconds if a passed fractional number of microseconds"
+  fails "Time.local ignores fractional seconds if a passed whole number of microseconds"
+  fails "Time.local handles fractional microseconds as a Rational"
+  fails "Time.local handles fractional microseconds as a Float"
+  fails "Time.local handles microseconds"
+  fails "Time.local returns subclass instances"
+  fails "Time.local handles fractional seconds as a Rational"
+  fails "Time.local handles fractional seconds as a Float"
+  fails "Time.local coerces the month with #to_str"
+  fails "Time.local handles a String month given as a short month name"
+  fails "Time.local creates the correct time just after dst change"
+  fails "Time.local creates the correct time just before dst change"
+  fails "Time.local creates a time based on given C-style gmtime arguments, interpreted in the local time zone"
+  fails "Time.local respects rare old timezones"
+  fails "Time.local creates a time based on given values, interpreted in the local time zone"
+
+  fails "Time#- returns a time with the same fixed offset as self"
+  fails "Time#- maintains subseconds precision"
+  fails "Time#- maintains nanoseconds precision"
+  fails "Time#- maintains microseconds precision"
+  fails "Time#- maintains precision"
+  fails "Time#- tracks nanoseconds"
+  fails "Time#- tracks microseconds"
+  fails "Time#- tracks microseconds"
+  fails "Time#- accepts arguments that can be coerced into Rational"
+  fails "Time#- understands negative subtractions"
+
   fails "Time.mktime respects rare old timezones"
   fails "Time.mktime creates a time based on given values, interpreted in the local time zone"
   fails "Time.mktime creates the correct time just before dst change"
@@ -12,9 +63,23 @@
   fails "Time.mktime handles a String month given as a short month name"
   fails "Time.mktime returns subclass instances"
 
+  fails "Time#eql? returns false if self and other have differing fractional microseconds"
+
   fails "Time.inspect formats the local time following the pattern 'yyyy-MM-dd HH:mm:ss Z'"
   fails "Time.inspect formats the fixed offset time following the pattern 'yyyy-MM-dd HH:mm:ss +/-HHMM'"
 
+  fails "Time#+ maintains subseconds precision"
+  fails "Time#+ maintains nanoseconds precision"
+  fails "Time#+ maintains microseconds precision"
+  fails "Time#+ maintains precision"
+  fails "Time#+ tracks nanoseconds"
+  fails "Time#+ tracks microseconds"
+  fails "Time#+ returns a time with the same fixed offset as self"
+  fails "Time#+ accepts arguments that can be coerced into Rational"
+  fails "Time#+ increments the time by the specified amount as rational numbers"
+  fails "Time#+ adds a negative Float"
+  fails "Time#+ is a commutative operator"
+
   fails "Time#strftime supports week of year format with %U and %W"
 
   fails "Time#to_s formats the local time following the pattern 'yyyy-MM-dd HH:mm:ss Z'"
@@ -44,4 +109,12 @@
   fails "Time.utc accepts nil month, day, hour, minute, and second"
   fails "Time.utc creates a time based on given C-style gmtime arguments, interpreted as UTC (GMT)"
   fails "Time.utc creates a time based on given values, interpreted as UTC (GMT)"
+
+  fails "Time#utc_offset given negative offset returns a negative offset"
+  fails "Time#utc_offset given positive offset returns a positive offset"
+  fails "Time#utc_offset returns offset as Rational"
+  fails "Time#utc_offset returns the correct offset for New Zealand around daylight savings time change"
+  fails "Time#utc_offset returns the correct offset for Hawaii around daylight savings time change"
+  fails "Time#utc_offset returns the correct offset for US Eastern time zone around daylight savings time change"
+  fails "Time#utc_offset returns the offset in seconds between the timezone of time and UTC"
 end

spec/opal/rubyspecs

@@ -323,20 +323,36 @@ core/struct/new_spec
 core/class/new_spec
 
 core/time/day_spec
+core/time/eql_spec
 core/time/friday_spec
+core/time/gm_spec
 core/time/hour_spec
 core/time/inspect_spec
+core/time/local_spec
+core/time/mday_spec
 core/time/min_spec
+core/time/minus_spec
 core/time/mktime_spec
+core/time/mon_spec
 core/time/monday_spec
 core/time/month_spec
+# core/time/new_spec - js parse error (xstring in shared/now)
+# core/time/now_spec - js parse error (xstring in shared/now)
+core/time/plus_spec
 core/time/saturday_spec
+core/time/sec_spec
 core/time/strftime_spec
+core/time/sunday_spec
 core/time/thursday_spec
+core/time/times_spec
+core/time/to_i_spec
 core/time/to_s_spec
 core/time/tuesday_spec
+core/time/utc_offset_spec
 core/time/utc_spec
+core/time/wday_spec
 core/time/wednesday_spec
+core/time/yday_spec
 core/time/year_spec
 
 #core/regexp/escape_spec