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# The new_datetime helper makes writing DateTime specs more simple by
# providing default constructor values and accepting a Hash of only the
# constructor values needed for the particular spec. For example:
#
# new_datetime :hour => 1, :minute => 20
#
# Possible keys are:
# :year, :month, :day, :hour, :minute, :second, :offset and :sg.
def new_datetime(opts = {})
require 'date'
value = {
:year => -4712,
:month => 1,
:day => 1,
:hour => 0,
:minute => 0,
:second => 0,
:offset => 0,
:sg => Date::ITALY
}.merge opts
DateTime.new value[:year], value[:month], value[:day], value[:hour],
value[:minute], value[:second], value[:offset], value[:sg]
end
def with_timezone(name, offset = nil, daylight_saving_zone = "")
zone = name.dup
if offset
# TZ convention is backwards
offset = -offset
zone += offset.to_s
zone += ":00:00"
end
zone += daylight_saving_zone
old = ENV["TZ"]
ENV["TZ"] = zone
begin
yield
ensure
ENV["TZ"] = old
end
end
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