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describe :date_valid_commercial?, :shared => true do
ruby_version_is "" ... "1.9" do
it "returns the corresponding Julian Day Number if it is a valid commercial date" do
# October 1582 (the Gregorian calendar, Commercial Date in 1.8)
# M Tu W Th F Sa Su
# 41: - - - - 5 6 7
# 42: 1 2 3 4 5 6 7
# 43: 1 2 3 4 5 6 7
Date.send(@method, 1582, 41, 5).should == Date.civil(1582, 10, 15).jd
Date.send(@method, 1752, 37, 4, Date::ENGLAND).should == Date.civil(1752, 9, 14, Date::ENGLAND).jd
end
it "returns nil if it is not a valid commercial date" do
Date.send(@method, 1582, 41, 4).should be_nil
# valid_commercial? can't handle dates before the Gregorian calendar
Date.send(@method, 1582, 41, 4, Date::ENGLAND).should be_nil
end
it "handles negative week and day numbers" do
# October 1582 (the Gregorian calendar, Commercial Date in 1.8)
# M Tu W Th F Sa Su
# -12: - - - - -3 -2 -1
# -11: -7 -6 -5 -4 -3 -2 -1
# -10: -7 -6 -5 -4 -3 -2 -1
Date.send(@method, 1582, -12, -4).should be_nil
Date.send(@method, 1582, -12, -3).should == Date.civil(1582, 10, 15).jd
Date.send(@method, 2007, -44, -2).should == Date.civil(2007, 3, 3).jd
Date.send(@method, 2008, -44, -2).should == Date.civil(2008, 3, 1).jd
end
end
ruby_version_is "1.9" do
it "returns true if it is a valid commercial date" do
# October 1582 (the Gregorian calendar, Commercial Date in 1.9)
# M Tu W Th F Sa Su
# 39: 1 2 3 4 5 6 7
# 40: 1 2 3 4 5 6 7
# 41: 1 2 3 4 5 6 7
Date.send(@method, 1582, 39, 4).should be_true
Date.send(@method, 1582, 39, 5).should be_true
Date.send(@method, 1582, 41, 4).should be_true
Date.send(@method, 1582, 41, 5).should be_true
Date.send(@method, 1582, 41, 4, Date::ENGLAND).should be_true
Date.send(@method, 1752, 37, 4, Date::ENGLAND).should be_true
end
it "returns false it is not a valid commercial date" do
Date.send(@method, 1999, 53, 1).should be_false
end
it "handles negative week and day numbers" do
# October 1582 (the Gregorian calendar, Commercial Date in 1.9)
# M Tu W Th F Sa Su
# -12: -7 -6 -5 -4 -3 -2 -1
# -11: -7 -6 -5 -4 -3 -2 -1
# -10: -7 -6 -5 -4 -3 -2 -1
Date.send(@method, 1582, -12, -4).should be_true
Date.send(@method, 1582, -12, -3).should be_true
Date.send(@method, 2007, -44, -2).should be_true
Date.send(@method, 2008, -44, -2).should be_true
Date.send(@method, 1999, -53, -1).should be_false
end
end
end
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