[ruby-dev:40215] [Bug #2675](Rejected) rubyspec: Date#valid_civil? should be able to handle negative months and days FAILED

チケット #2675 が更新されました。 (by Yusuke Endoh)

ステータス OpenからRejectedに変更
ruby -v ruby 1.9.2dev (2010-01-28 trunk 26458) [i686-linux]にセット

> したがって、1582年-3月-18日は、1.8 では存在するが、1.9 では存在しないと
> いうことになります。

説明ありがとうございます！わかりました。
聞かないと到底わかりそうになかったです。

このチケットは reject しつつ、以下のようなパッチを rubyspec に
送ろうと思います。


diff --git a/library/date/civil_spec.rb b/library/date/civil_spec.rb
index e26968c..d169cc2 100644
--- a/library/date/civil_spec.rb
+++ b/library/date/civil_spec.rb
@@ -10,19 +10,56 @@ end
 
 describe "Date#valid_civil?" do
 
-  it "should be able to determine if a date is valid" do
-    Date.valid_civil?(1582, 10, 14).should == nil
-    Date.valid_civil?(1582, 10, 15).should == Date.civil(1582, 10, 15).jd
-    Date.valid_civil?(1582, 10, 14, Date::ENGLAND).should_not == nil
-    Date.valid_civil?(1582, 10, 14, Date::ENGLAND).should == Date.civil(1582, 10, 14, Date::ENGLAND).jd
+  ruby_version_is "" ... "1.9" do
+    it "should be able to determine if a date is valid" do
+      Date.valid_civil?(1582, 10, 14).should == nil
+      Date.valid_civil?(1582, 10, 15).should == Date.civil(1582, 10, 15).jd
+      Date.valid_civil?(1582, 10, 14, Date::ENGLAND).should_not == nil
+      Date.valid_civil?(1582, 10, 14, Date::ENGLAND).should == Date.civil(1582, 10, 14, Date::ENGLAND).jd
+    end
+
+    it "should be able to handle negative months and days" do
+      # October 1582
+      #     S   M  Tu   W  Th   F   S
+      #       -31 -30 -29 -28 -17 -16
+      #   -15 -14 -13 -12 -11 -10  -9
+      #    -8  -7  -6  -5  -4  -3  -2
+      #    -1
+      Date.valid_civil?(1582, -3, -31).should == Date.civil(1582, 10,  1).jd
+      Date.valid_civil?(1582, -3, -28).should == Date.civil(1582, 10,  4).jd
+      Date.valid_civil?(1582, -3, -27).should == nil
+      Date.valid_civil?(1582, -3, -22).should == nil
+      Date.valid_civil?(1582, -3, -21).should == nil
+      Date.valid_civil?(1582, -3, -18).should == nil
+      Date.valid_civil?(1582, -3, -17).should == Date.civil(1582, 10, 15).jd
+    
+      Date.valid_civil?(2007, -11, -10).should == Date.civil(2007, 2, 19).jd
+      Date.valid_civil?(2008, -11, -10).should == Date.civil(2008, 2, 20).jd
+    end
   end
-  
-  it "should be able to handle negative months and days" do
-    Date.valid_civil?(1582, -3, -18).should == nil
-    Date.valid_civil?(1582, -3, -17).should == Date.civil(1582, 10, 15).jd
+
+  ruby_version_is "1.9" do
+    it "should be able to determine if a date is valid" do
+      Date.valid_civil?(1582, 10, 14).should == false
+      Date.valid_civil?(1582, 10, 15).should == true
+      Date.valid_civil?(1582, 10, 14, Date::ENGLAND).should == true
+    end
+
+    it "should be able to handle negative months and days" do
+      # October 1582
+      #     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_civil?(1582, -3, -22).should == false
+      Date.valid_civil?(1582, -3, -21).should == true
+      Date.valid_civil?(1582, -3, -18).should == true
+      Date.valid_civil?(1582, -3, -17).should == true
     
-    Date.valid_civil?(2007, -11, -10).should == Date.civil(2007, 2, 19).jd
-    Date.valid_civil?(2008, -11, -10).should == Date.civil(2008, 2, 20).jd
+      Date.valid_civil?(2007, -11, -10).should == true
+      Date.valid_civil?(2008, -11, -10).should == true
+    end
   end
 
 end

-- 
Yusuke Endoh <[e-mail]>
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http://redmine.ruby-lang.org/issues/show/2675

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