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authoreregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-09-20 20:18:52 +0000
committereregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2017-09-20 20:18:52 +0000
commit1d15d5f08032acf1b7bceacbb450d617ff6e0931 (patch)
treea3785a79899302bc149e4a6e72f624ac27dc1f10 /spec/ruby/core/rational/rationalize_spec.rb
parent75bfc6440d595bf339007f4fb280fd4d743e89c1 (diff)
downloadruby-1d15d5f08032acf1b7bceacbb450d617ff6e0931.tar.gz
Move spec/rubyspec to spec/ruby for consistency
* Other ruby implementations use the spec/ruby directory. [Misc #13792] [ruby-core:82287] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'spec/ruby/core/rational/rationalize_spec.rb')
-rw-r--r--spec/ruby/core/rational/rationalize_spec.rb36
1 files changed, 36 insertions, 0 deletions
diff --git a/spec/ruby/core/rational/rationalize_spec.rb b/spec/ruby/core/rational/rationalize_spec.rb
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+++ b/spec/ruby/core/rational/rationalize_spec.rb
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+require File.expand_path('../../../spec_helper', __FILE__)
+
+describe "Rational#rationalize" do
+ it "returns self with no argument" do
+ Rational(12,3).rationalize.should == Rational(12,3)
+ Rational(-45,7).rationalize.should == Rational(-45,7)
+ end
+
+ # FIXME: These specs need reviewing by somebody familiar with the
+ # algorithm used by #rationalize
+ it "simplifies self to the degree specified by a Rational argument" do
+ r = Rational(5404319552844595,18014398509481984)
+ r.rationalize(Rational(1,10)).should == Rational(1,3)
+ r.rationalize(Rational(-1,10)).should == Rational(1,3)
+
+ r = Rational(-5404319552844595,18014398509481984)
+ r.rationalize(Rational(1,10)).should == Rational(-1,3)
+ r.rationalize(Rational(-1,10)).should == Rational(-1,3)
+
+ end
+
+ it "simplifies self to the degree specified by a Float argument" do
+ r = Rational(5404319552844595,18014398509481984)
+ r.rationalize(0.05).should == Rational(1,3)
+ r.rationalize(0.001).should == Rational(3, 10)
+
+ r = Rational(-5404319552844595,18014398509481984)
+ r.rationalize(0.05).should == Rational(-1,3)
+ r.rationalize(0.001).should == Rational(-3,10)
+ end
+
+ it "raises ArgumentError when passed more than one argument" do
+ lambda { Rational(1,1).rationalize(0.1, 0.1) }.should raise_error(ArgumentError)
+ lambda { Rational(1,1).rationalize(0.1, 0.1, 2) }.should raise_error(ArgumentError)
+ end
+end