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author | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-09-20 20:18:52 +0000 |
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committer | eregon <eregon@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2017-09-20 20:18:52 +0000 |
commit | 1d15d5f08032acf1b7bceacbb450d617ff6e0931 (patch) | |
tree | a3785a79899302bc149e4a6e72f624ac27dc1f10 /spec/ruby/core/rational/rationalize_spec.rb | |
parent | 75bfc6440d595bf339007f4fb280fd4d743e89c1 (diff) | |
download | ruby-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.rb | 36 |
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 new file mode 100644 index 0000000000..053e245cff --- /dev/null +++ b/spec/ruby/core/rational/rationalize_spec.rb @@ -0,0 +1,36 @@ +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 |