require_relative '../../spec_helper' require_relative 'fixtures/classes' 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 -> { Range.new(1, mock('x')) }.should raise_error(ArgumentError) -> { Range.new(mock('x'), mock('y')) }.should raise_error(ArgumentError) b = mock('x') (a = mock('nil')).should_receive(:<=>).with(b).and_return(nil) -> { Range.new(a, b) }.should raise_error(ArgumentError) end ruby_version_is "2.5" do it "does not rescue exception raised in #<=> when compares the given start and end" do b = mock('a') a = mock('b') a.should_receive(:<=>).with(b).and_raise(RangeSpecs::ComparisonError) -> { Range.new(a, b) }.should raise_error(RangeSpecs::ComparisonError) end end describe "beginless/endless range" do ruby_version_is ""..."2.7" do it "does not allow range without left boundary" do -> { Range.new(nil, 1) }.should raise_error(ArgumentError, /bad value for range/) end end ruby_version_is "2.7" do it "allows beginless left boundary" do range = Range.new(nil, 1) range.begin.should == nil end it "distinguishes ranges with included and excluded right boundary" do range_exclude = Range.new(nil, 1, true) range_include = Range.new(nil, 1, false) range_exclude.should_not == range_include end end ruby_version_is ""..."2.6" do it "does not allow range without right boundary" do -> { Range.new(1, nil) }.should raise_error(ArgumentError, /bad value for range/) end end ruby_version_is "2.6" do it "allows endless right boundary" do range = Range.new(1, nil) range.end.should == nil end it "distinguishes ranges with included and excluded right boundary" do range_exclude = Range.new(1, nil, true) range_include = Range.new(1, nil, false) range_exclude.should_not == range_include end end end end