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-rw-r--r--spec/ruby/library/date/valid_date_spec.rb35
1 files changed, 32 insertions, 3 deletions
diff --git a/spec/ruby/library/date/valid_date_spec.rb b/spec/ruby/library/date/valid_date_spec.rb
index f12a71d966..f0d5ec7b4d 100644
--- a/spec/ruby/library/date/valid_date_spec.rb
+++ b/spec/ruby/library/date/valid_date_spec.rb
@@ -1,7 +1,36 @@
require_relative '../../spec_helper'
-require_relative 'shared/valid_civil'
require 'date'
-describe "Date#valid_date?" do
- it_behaves_like :date_valid_civil?, :valid_date?
+describe "Date.valid_date?" do
+ # reference:
+ # October 1582 (the Gregorian calendar, Civil Date)
+ # S M Tu W Th F S
+ # 1 2 3 4 15 16
+ # 17 18 19 20 21 22 23
+ # 24 25 26 27 28 29 30
+ # 31
+ it "returns true if it is a valid civil date" do
+ Date.valid_date?(1582, 10, 15).should == true
+ Date.valid_date?(1582, 10, 14, Date::ENGLAND).should == true
+ end
+
+ it "returns false if it is not a valid civil date" do
+ Date.valid_date?(1582, 10, 14).should == false
+ end
+
+ it "handles negative months and days" do
+ # October 1582 (the Gregorian calendar, Civil Date)
+ # S M Tu W Th F S
+ # -21 -20 -19 -18 -17 -16
+ # -15 -14 -13 -12 -11 -10 -9
+ # -8 -7 -6 -5 -4 -3 -2
+ # -1
+ Date.valid_date?(1582, -3, -22).should == false
+ Date.valid_date?(1582, -3, -21).should == true
+ Date.valid_date?(1582, -3, -18).should == true
+ Date.valid_date?(1582, -3, -17).should == true
+
+ Date.valid_date?(2007, -11, -10).should == true
+ Date.valid_date?(2008, -11, -10).should == true
+ end
end