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require_relative '../../spec_helper'
ruby_version_is '3.3' do
describe "Range#overlap?" do
it "returns true if other Range overlaps self" do
(0..2).overlap?(1..3).should == true
(1..3).overlap?(0..2).should == true
(0..2).overlap?(0..2).should == true
(0..3).overlap?(1..2).should == true
(1..2).overlap?(0..3).should == true
('a'..'c').overlap?('b'..'d').should == true
end
it "returns false if other Range does not overlap self" do
(0..2).overlap?(3..4).should == false
(0..2).overlap?(-4..-1).should == false
('a'..'c').overlap?('d'..'f').should == false
end
it "raises TypeError when called with non-Range argument" do
-> {
(0..2).overlap?(1)
}.should raise_error(TypeError, "wrong argument type Integer (expected Range)")
end
it "returns true when beginningless and endless Ranges overlap" do
(0..2).overlap?(..3).should == true
(0..2).overlap?(..1).should == true
(0..2).overlap?(..0).should == true
(..3).overlap?(0..2).should == true
(..1).overlap?(0..2).should == true
(..0).overlap?(0..2).should == true
(0..2).overlap?(-1..).should == true
(0..2).overlap?(1..).should == true
(0..2).overlap?(2..).should == true
(-1..).overlap?(0..2).should == true
(1..).overlap?(0..2).should == true
(2..).overlap?(0..2).should == true
(0..).overlap?(2..).should == true
(..0).overlap?(..2).should == true
end
it "returns false when beginningless and endless Ranges do not overlap" do
(0..2).overlap?(..-1).should == false
(0..2).overlap?(3..).should == false
(..-1).overlap?(0..2).should == false
(3..).overlap?(0..2).should == false
end
it "returns false when Ranges are not compatible" do
(0..2).overlap?('a'..'d').should == false
end
it "return false when self is empty" do
(2..0).overlap?(1..3).should == false
(2...2).overlap?(1..3).should == false
(1...1).overlap?(1...1).should == false
(2..0).overlap?(2..0).should == false
('c'..'a').overlap?('b'..'d').should == false
('a'...'a').overlap?('b'..'d').should == false
('b'...'b').overlap?('b'...'b').should == false
('c'...'a').overlap?('c'...'a').should == false
end
it "return false when other Range is empty" do
(1..3).overlap?(2..0).should == false
(1..3).overlap?(2...2).should == false
('b'..'d').overlap?('c'..'a').should == false
('b'..'d').overlap?('c'...'c').should == false
end
it "takes into account exclusive end" do
(0...2).overlap?(2..4).should == false
(2..4).overlap?(0...2).should == false
('a'...'c').overlap?('c'..'e').should == false
('c'..'e').overlap?('a'...'c').should == false
end
end
end
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