From a3736e97a6ca517c2cd7d3d93a8f2ef86e39e5b5 Mon Sep 17 00:00:00 2001 From: eregon Date: Sun, 7 May 2017 12:04:49 +0000 Subject: Add in-tree mspec and ruby/spec * For easier modifications of ruby/spec by MRI developers. * .gitignore: track changes under spec. * spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec. These files can therefore be updated like any other file in MRI. Instructions are provided in spec/README. [Feature #13156] [ruby-core:79246] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- spec/rubyspec/core/integer/rationalize_spec.rb | 39 ++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 spec/rubyspec/core/integer/rationalize_spec.rb (limited to 'spec/rubyspec/core/integer/rationalize_spec.rb') diff --git a/spec/rubyspec/core/integer/rationalize_spec.rb b/spec/rubyspec/core/integer/rationalize_spec.rb new file mode 100644 index 0000000000..1ff4cfa454 --- /dev/null +++ b/spec/rubyspec/core/integer/rationalize_spec.rb @@ -0,0 +1,39 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe "Integer#rationalize" do + before :all do + @numbers = [ + 0, + 29871, + 99999999999999**99, + -72628191273, + ] + end + + it "returns a Rational object" do + @numbers.each do |number| + number.rationalize.should be_an_instance_of(Rational) + end + end + + it "uses self as the numerator" do + @numbers.each do |number| + number.rationalize.numerator.should == number + end + end + + it "uses 1 as the denominator" do + @numbers.each do |number| + number.rationalize.denominator.should == 1 + end + end + + it "ignores a single argument" do + 1.rationalize(0.1).should == Rational(1,1) + end + + it "raises ArgumentError when passed more than one argument" do + lambda { 1.rationalize(0.1, 0.1) }.should raise_error(ArgumentError) + lambda { 1.rationalize(0.1, 0.1, 2) }.should raise_error(ArgumentError) + end +end -- cgit v1.2.3