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ruby--ruby/spec/rubyspec/library/date/minus_month_spec.rb
eregon 95e8c48dd3 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
2017-05-07 12:04:49 +00:00

34 lines
1.2 KiB
Ruby

require 'date'
require File.expand_path('../../../spec_helper', __FILE__)
describe "Date#<<" do
it "substracts a number of months from a date" do
d = Date.civil(2007,2,27) << 10
d.should == Date.civil(2006, 4, 27)
end
it "returns the last day of a month if the day doesn't exist" do
d = Date.civil(2008,3,31) << 1
d.should == Date.civil(2008, 2, 29)
end
ruby_version_is ""..."2.3" do
it "raises an error on non numeric parameters" do
lambda { Date.civil(2007,2,27) << :hello }.should raise_error
lambda { Date.civil(2007,2,27) << "hello" }.should raise_error
lambda { Date.civil(2007,2,27) << Date.new }.should raise_error
lambda { Date.civil(2007,2,27) << Object.new }.should raise_error
end
end
ruby_version_is "2.3" do
it "raises an error on non numeric parameters" do
lambda { Date.civil(2007,2,27) << :hello }.should raise_error(TypeError)
lambda { Date.civil(2007,2,27) << "hello" }.should raise_error(TypeError)
lambda { Date.civil(2007,2,27) << Date.new }.should raise_error(TypeError)
lambda { Date.civil(2007,2,27) << Object.new }.should raise_error(TypeError)
end
end
end