diff options
Diffstat (limited to 'spec/ruby/core/range/new_spec.rb')
-rw-r--r-- | spec/ruby/core/range/new_spec.rb | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/spec/ruby/core/range/new_spec.rb b/spec/ruby/core/range/new_spec.rb new file mode 100644 index 0000000000..f0d24e4aeb --- /dev/null +++ b/spec/ruby/core/range/new_spec.rb @@ -0,0 +1,34 @@ +require File.expand_path('../../../spec_helper', __FILE__) + +describe "Range.new" do + it "constructs a range using the given start and end" do + range = Range.new('a', 'c') + range.should == ('a'..'c') + + range.first.should == 'a' + range.last.should == 'c' + end + + it "includes the end object when the third parameter is omitted or false" do + Range.new('a', 'c').to_a.should == ['a', 'b', 'c'] + Range.new(1, 3).to_a.should == [1, 2, 3] + + Range.new('a', 'c', false).to_a.should == ['a', 'b', 'c'] + Range.new(1, 3, false).to_a.should == [1, 2, 3] + + Range.new('a', 'c', true).to_a.should == ['a', 'b'] + Range.new(1, 3, 1).to_a.should == [1, 2] + + Range.new(1, 3, mock('[1,2]')).to_a.should == [1, 2] + Range.new(1, 3, :test).to_a.should == [1, 2] + end + + it "raises an ArgumentError when the given start and end can't be compared by using #<=>" do + lambda { Range.new(1, mock('x')) }.should raise_error(ArgumentError) + lambda { Range.new(mock('x'), mock('y')) }.should raise_error(ArgumentError) + + b = mock('x') + (a = mock('nil')).should_receive(:<=>).with(b).and_return(nil) + lambda { Range.new(a, b) }.should raise_error(ArgumentError) + end +end |