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-rw-r--r--spec/ruby/core/array/shared/slice.rb429
1 files changed, 365 insertions, 64 deletions
diff --git a/spec/ruby/core/array/shared/slice.rb b/spec/ruby/core/array/shared/slice.rb
index 19e1a3ee2b..d2866970a5 100644
--- a/spec/ruby/core/array/shared/slice.rb
+++ b/spec/ruby/core/array/shared/slice.rb
@@ -397,56 +397,28 @@ describe :array_slice, shared: true do
@array = ArraySpecs::MyArray[1, 2, 3, 4, 5]
end
- ruby_version_is ''...'3.0' do
- it "returns a subclass instance with [n, m]" do
- @array.send(@method, 0, 2).should be_an_instance_of(ArraySpecs::MyArray)
- end
-
- it "returns a subclass instance with [-n, m]" do
- @array.send(@method, -3, 2).should be_an_instance_of(ArraySpecs::MyArray)
- end
-
- it "returns a subclass instance with [n..m]" do
- @array.send(@method, 1..3).should be_an_instance_of(ArraySpecs::MyArray)
- end
-
- it "returns a subclass instance with [n...m]" do
- @array.send(@method, 1...3).should be_an_instance_of(ArraySpecs::MyArray)
- end
-
- it "returns a subclass instance with [-n..-m]" do
- @array.send(@method, -3..-1).should be_an_instance_of(ArraySpecs::MyArray)
- end
-
- it "returns a subclass instance with [-n...-m]" do
- @array.send(@method, -3...-1).should be_an_instance_of(ArraySpecs::MyArray)
- end
+ it "returns a Array instance with [n, m]" do
+ @array.send(@method, 0, 2).should be_an_instance_of(Array)
end
- ruby_version_is '3.0' do
- it "returns a Array instance with [n, m]" do
- @array.send(@method, 0, 2).should be_an_instance_of(Array)
- end
-
- it "returns a Array instance with [-n, m]" do
- @array.send(@method, -3, 2).should be_an_instance_of(Array)
- end
+ it "returns a Array instance with [-n, m]" do
+ @array.send(@method, -3, 2).should be_an_instance_of(Array)
+ end
- it "returns a Array instance with [n..m]" do
- @array.send(@method, 1..3).should be_an_instance_of(Array)
- end
+ it "returns a Array instance with [n..m]" do
+ @array.send(@method, 1..3).should be_an_instance_of(Array)
+ end
- it "returns a Array instance with [n...m]" do
- @array.send(@method, 1...3).should be_an_instance_of(Array)
- end
+ it "returns a Array instance with [n...m]" do
+ @array.send(@method, 1...3).should be_an_instance_of(Array)
+ end
- it "returns a Array instance with [-n..-m]" do
- @array.send(@method, -3..-1).should be_an_instance_of(Array)
- end
+ it "returns a Array instance with [-n..-m]" do
+ @array.send(@method, -3..-1).should be_an_instance_of(Array)
+ end
- it "returns a Array instance with [-n...-m]" do
- @array.send(@method, -3...-1).should be_an_instance_of(Array)
- end
+ it "returns a Array instance with [-n...-m]" do
+ @array.send(@method, -3...-1).should be_an_instance_of(Array)
end
it "returns an empty array when m == n with [m...n]" do
@@ -517,8 +489,9 @@ describe :array_slice, shared: true do
end
it "raises a RangeError if passed a range with a bound that is too large" do
- -> { "hello".send(@method, bignum_value..(bignum_value + 1)) }.should raise_error(RangeError)
- -> { "hello".send(@method, 0..bignum_value) }.should raise_error(RangeError)
+ array = [1, 2, 3, 4, 5, 6]
+ -> { array.send(@method, bignum_value..(bignum_value + 1)) }.should raise_error(RangeError)
+ -> { array.send(@method, 0..bignum_value) }.should raise_error(RangeError)
end
it "can accept endless ranges" do
@@ -533,26 +506,354 @@ describe :array_slice, shared: true do
a.send(@method, eval("(-9...)")).should == nil
end
- ruby_version_is "2.7" do
- it "can accept beginless ranges" do
- a = [0, 1, 2, 3, 4, 5]
- a.send(@method, eval("(..3)")).should == [0, 1, 2, 3]
- a.send(@method, eval("(...3)")).should == [0, 1, 2]
- a.send(@method, eval("(..-3)")).should == [0, 1, 2, 3]
- a.send(@method, eval("(...-3)")).should == [0, 1, 2]
- a.send(@method, eval("(..0)")).should == [0]
- a.send(@method, eval("(...0)")).should == []
- a.send(@method, eval("(..9)")).should == [0, 1, 2, 3, 4, 5]
- a.send(@method, eval("(...9)")).should == [0, 1, 2, 3, 4, 5]
- a.send(@method, eval("(..-9)")).should == []
- a.send(@method, eval("(...-9)")).should == []
+ describe "can be sliced with Enumerator::ArithmeticSequence" do
+ before :each do
+ @array = [0, 1, 2, 3, 4, 5]
+ end
+
+ it "has endless range and positive steps" do
+ @array.send(@method, eval("(0..).step(1)")).should == [0, 1, 2, 3, 4, 5]
+ @array.send(@method, eval("(0..).step(2)")).should == [0, 2, 4]
+ @array.send(@method, eval("(0..).step(10)")).should == [0]
+
+ @array.send(@method, eval("(2..).step(1)")).should == [2, 3, 4, 5]
+ @array.send(@method, eval("(2..).step(2)")).should == [2, 4]
+ @array.send(@method, eval("(2..).step(10)")).should == [2]
+
+ @array.send(@method, eval("(-3..).step(1)")).should == [3, 4, 5]
+ @array.send(@method, eval("(-3..).step(2)")).should == [3, 5]
+ @array.send(@method, eval("(-3..).step(10)")).should == [3]
+ end
+
+ it "has beginless range and positive steps" do
+ # end with zero index
+ @array.send(@method, (..0).step(1)).should == [0]
+ @array.send(@method, (...0).step(1)).should == []
+
+ @array.send(@method, (..0).step(2)).should == [0]
+ @array.send(@method, (...0).step(2)).should == []
+
+ @array.send(@method, (..0).step(10)).should == [0]
+ @array.send(@method, (...0).step(10)).should == []
+
+ # end with positive index
+ @array.send(@method, (..3).step(1)).should == [0, 1, 2, 3]
+ @array.send(@method, (...3).step(1)).should == [0, 1, 2]
+
+ @array.send(@method, (..3).step(2)).should == [0, 2]
+ @array.send(@method, (...3).step(2)).should == [0, 2]
+
+ @array.send(@method, (..3).step(10)).should == [0]
+ @array.send(@method, (...3).step(10)).should == [0]
+
+ # end with negative index
+ @array.send(@method, (..-2).step(1)).should == [0, 1, 2, 3, 4,]
+ @array.send(@method, (...-2).step(1)).should == [0, 1, 2, 3]
+
+ @array.send(@method, (..-2).step(2)).should == [0, 2, 4]
+ @array.send(@method, (...-2).step(2)).should == [0, 2]
+
+ @array.send(@method, (..-2).step(10)).should == [0]
+ @array.send(@method, (...-2).step(10)).should == [0]
+ end
+
+ it "has endless range and negative steps" do
+ @array.send(@method, eval("(0..).step(-1)")).should == [0]
+ @array.send(@method, eval("(0..).step(-2)")).should == [0]
+ @array.send(@method, eval("(0..).step(-10)")).should == [0]
+
+ @array.send(@method, eval("(2..).step(-1)")).should == [2, 1, 0]
+ @array.send(@method, eval("(2..).step(-2)")).should == [2, 0]
+
+ @array.send(@method, eval("(-3..).step(-1)")).should == [3, 2, 1, 0]
+ @array.send(@method, eval("(-3..).step(-2)")).should == [3, 1]
+ end
+
+ it "has closed range and positive steps" do
+ # start and end with 0
+ @array.send(@method, eval("(0..0).step(1)")).should == [0]
+ @array.send(@method, eval("(0...0).step(1)")).should == []
+
+ @array.send(@method, eval("(0..0).step(2)")).should == [0]
+ @array.send(@method, eval("(0...0).step(2)")).should == []
+
+ @array.send(@method, eval("(0..0).step(10)")).should == [0]
+ @array.send(@method, eval("(0...0).step(10)")).should == []
+
+ # start and end with positive index
+ @array.send(@method, eval("(1..3).step(1)")).should == [1, 2, 3]
+ @array.send(@method, eval("(1...3).step(1)")).should == [1, 2]
+
+ @array.send(@method, eval("(1..3).step(2)")).should == [1, 3]
+ @array.send(@method, eval("(1...3).step(2)")).should == [1]
+
+ @array.send(@method, eval("(1..3).step(10)")).should == [1]
+ @array.send(@method, eval("(1...3).step(10)")).should == [1]
+
+ # start with positive index, end with negative index
+ @array.send(@method, eval("(1..-2).step(1)")).should == [1, 2, 3, 4]
+ @array.send(@method, eval("(1...-2).step(1)")).should == [1, 2, 3]
+
+ @array.send(@method, eval("(1..-2).step(2)")).should == [1, 3]
+ @array.send(@method, eval("(1...-2).step(2)")).should == [1, 3]
+
+ @array.send(@method, eval("(1..-2).step(10)")).should == [1]
+ @array.send(@method, eval("(1...-2).step(10)")).should == [1]
+
+ # start with negative index, end with positive index
+ @array.send(@method, eval("(-4..4).step(1)")).should == [2, 3, 4]
+ @array.send(@method, eval("(-4...4).step(1)")).should == [2, 3]
+
+ @array.send(@method, eval("(-4..4).step(2)")).should == [2, 4]
+ @array.send(@method, eval("(-4...4).step(2)")).should == [2]
+
+ @array.send(@method, eval("(-4..4).step(10)")).should == [2]
+ @array.send(@method, eval("(-4...4).step(10)")).should == [2]
+
+ # start with negative index, end with negative index
+ @array.send(@method, eval("(-4..-2).step(1)")).should == [2, 3, 4]
+ @array.send(@method, eval("(-4...-2).step(1)")).should == [2, 3]
+
+ @array.send(@method, eval("(-4..-2).step(2)")).should == [2, 4]
+ @array.send(@method, eval("(-4...-2).step(2)")).should == [2]
+
+ @array.send(@method, eval("(-4..-2).step(10)")).should == [2]
+ @array.send(@method, eval("(-4...-2).step(10)")).should == [2]
+ end
+
+ it "has closed range and negative steps" do
+ # start and end with 0
+ @array.send(@method, eval("(0..0).step(-1)")).should == [0]
+ @array.send(@method, eval("(0...0).step(-1)")).should == []
+
+ @array.send(@method, eval("(0..0).step(-2)")).should == [0]
+ @array.send(@method, eval("(0...0).step(-2)")).should == []
+
+ @array.send(@method, eval("(0..0).step(-10)")).should == [0]
+ @array.send(@method, eval("(0...0).step(-10)")).should == []
+
+ # start and end with positive index
+ @array.send(@method, eval("(1..3).step(-1)")).should == []
+ @array.send(@method, eval("(1...3).step(-1)")).should == []
+
+ @array.send(@method, eval("(1..3).step(-2)")).should == []
+ @array.send(@method, eval("(1...3).step(-2)")).should == []
+
+ @array.send(@method, eval("(1..3).step(-10)")).should == []
+ @array.send(@method, eval("(1...3).step(-10)")).should == []
+
+ # start with positive index, end with negative index
+ @array.send(@method, eval("(1..-2).step(-1)")).should == []
+ @array.send(@method, eval("(1...-2).step(-1)")).should == []
+
+ @array.send(@method, eval("(1..-2).step(-2)")).should == []
+ @array.send(@method, eval("(1...-2).step(-2)")).should == []
+
+ @array.send(@method, eval("(1..-2).step(-10)")).should == []
+ @array.send(@method, eval("(1...-2).step(-10)")).should == []
+
+ # start with negative index, end with positive index
+ @array.send(@method, eval("(-4..4).step(-1)")).should == []
+ @array.send(@method, eval("(-4...4).step(-1)")).should == []
+
+ @array.send(@method, eval("(-4..4).step(-2)")).should == []
+ @array.send(@method, eval("(-4...4).step(-2)")).should == []
+
+ @array.send(@method, eval("(-4..4).step(-10)")).should == []
+ @array.send(@method, eval("(-4...4).step(-10)")).should == []
+
+ # start with negative index, end with negative index
+ @array.send(@method, eval("(-4..-2).step(-1)")).should == []
+ @array.send(@method, eval("(-4...-2).step(-1)")).should == []
+
+ @array.send(@method, eval("(-4..-2).step(-2)")).should == []
+ @array.send(@method, eval("(-4...-2).step(-2)")).should == []
+
+ @array.send(@method, eval("(-4..-2).step(-10)")).should == []
+ @array.send(@method, eval("(-4...-2).step(-10)")).should == []
+ end
+
+ it "has inverted closed range and positive steps" do
+ # start and end with positive index
+ @array.send(@method, eval("(3..1).step(1)")).should == []
+ @array.send(@method, eval("(3...1).step(1)")).should == []
+
+ @array.send(@method, eval("(3..1).step(2)")).should == []
+ @array.send(@method, eval("(3...1).step(2)")).should == []
+
+ @array.send(@method, eval("(3..1).step(10)")).should == []
+ @array.send(@method, eval("(3...1).step(10)")).should == []
+
+ # start with negative index, end with positive index
+ @array.send(@method, eval("(-2..1).step(1)")).should == []
+ @array.send(@method, eval("(-2...1).step(1)")).should == []
+
+ @array.send(@method, eval("(-2..1).step(2)")).should == []
+ @array.send(@method, eval("(-2...1).step(2)")).should == []
+
+ @array.send(@method, eval("(-2..1).step(10)")).should == []
+ @array.send(@method, eval("(-2...1).step(10)")).should == []
+
+ # start with positive index, end with negative index
+ @array.send(@method, eval("(4..-4).step(1)")).should == []
+ @array.send(@method, eval("(4...-4).step(1)")).should == []
+
+ @array.send(@method, eval("(4..-4).step(2)")).should == []
+ @array.send(@method, eval("(4...-4).step(2)")).should == []
+
+ @array.send(@method, eval("(4..-4).step(10)")).should == []
+ @array.send(@method, eval("(4...-4).step(10)")).should == []
+
+ # start with negative index, end with negative index
+ @array.send(@method, eval("(-2..-4).step(1)")).should == []
+ @array.send(@method, eval("(-2...-4).step(1)")).should == []
+
+ @array.send(@method, eval("(-2..-4).step(2)")).should == []
+ @array.send(@method, eval("(-2...-4).step(2)")).should == []
+
+ @array.send(@method, eval("(-2..-4).step(10)")).should == []
+ @array.send(@method, eval("(-2...-4).step(10)")).should == []
end
- it "can accept nil...nil ranges" do
- a = [0, 1, 2, 3, 4, 5]
- a.send(@method, eval("(nil...nil)")).should == a
- a.send(@method, eval("(...nil)")).should == a
- a.send(@method, eval("(nil..)")).should == a
+ it "has range with bounds outside of array" do
+ # end is equal to array's length
+ @array.send(@method, (0..6).step(1)).should == [0, 1, 2, 3, 4, 5]
+ -> { @array.send(@method, (0..6).step(2)) }.should raise_error(RangeError)
+
+ # end is greater than length with positive steps
+ @array.send(@method, (1..6).step(2)).should == [1, 3, 5]
+ @array.send(@method, (2..7).step(2)).should == [2, 4]
+ -> { @array.send(@method, (2..8).step(2)) }.should raise_error(RangeError)
+
+ # begin is greater than length with negative steps
+ @array.send(@method, (6..1).step(-2)).should == [5, 3, 1]
+ @array.send(@method, (7..2).step(-2)).should == [5, 3]
+ -> { @array.send(@method, (8..2).step(-2)) }.should raise_error(RangeError)
+ end
+
+ it "has endless range with start outside of array's bounds" do
+ @array.send(@method, eval("(6..).step(1)")).should == []
+ @array.send(@method, eval("(7..).step(1)")).should == nil
+
+ @array.send(@method, eval("(6..).step(2)")).should == []
+ -> { @array.send(@method, eval("(7..).step(2)")) }.should raise_error(RangeError)
+ end
+ end
+
+ it "can accept beginless ranges" do
+ a = [0, 1, 2, 3, 4, 5]
+ a.send(@method, (..3)).should == [0, 1, 2, 3]
+ a.send(@method, (...3)).should == [0, 1, 2]
+ a.send(@method, (..-3)).should == [0, 1, 2, 3]
+ a.send(@method, (...-3)).should == [0, 1, 2]
+ a.send(@method, (..0)).should == [0]
+ a.send(@method, (...0)).should == []
+ a.send(@method, (..9)).should == [0, 1, 2, 3, 4, 5]
+ a.send(@method, (...9)).should == [0, 1, 2, 3, 4, 5]
+ a.send(@method, (..-9)).should == []
+ a.send(@method, (...-9)).should == []
+ end
+
+ ruby_version_is "3.2" do
+ describe "can be sliced with Enumerator::ArithmeticSequence" do
+ it "with infinite/inverted ranges and negative steps" do
+ @array = [0, 1, 2, 3, 4, 5]
+ @array.send(@method, (2..).step(-1)).should == [2, 1, 0]
+ @array.send(@method, (2..).step(-2)).should == [2, 0]
+ @array.send(@method, (2..).step(-3)).should == [2]
+ @array.send(@method, (2..).step(-4)).should == [2]
+
+ @array.send(@method, (-3..).step(-1)).should == [3, 2, 1, 0]
+ @array.send(@method, (-3..).step(-2)).should == [3, 1]
+ @array.send(@method, (-3..).step(-3)).should == [3, 0]
+ @array.send(@method, (-3..).step(-4)).should == [3]
+ @array.send(@method, (-3..).step(-5)).should == [3]
+
+ @array.send(@method, (..0).step(-1)).should == [5, 4, 3, 2, 1, 0]
+ @array.send(@method, (..0).step(-2)).should == [5, 3, 1]
+ @array.send(@method, (..0).step(-3)).should == [5, 2]
+ @array.send(@method, (..0).step(-4)).should == [5, 1]
+ @array.send(@method, (..0).step(-5)).should == [5, 0]
+ @array.send(@method, (..0).step(-6)).should == [5]
+ @array.send(@method, (..0).step(-7)).should == [5]
+
+ @array.send(@method, (...0).step(-1)).should == [5, 4, 3, 2, 1]
+ @array.send(@method, (...0).step(-2)).should == [5, 3, 1]
+ @array.send(@method, (...0).step(-3)).should == [5, 2]
+ @array.send(@method, (...0).step(-4)).should == [5, 1]
+ @array.send(@method, (...0).step(-5)).should == [5]
+ @array.send(@method, (...0).step(-6)).should == [5]
+
+ @array.send(@method, (...1).step(-1)).should == [5, 4, 3, 2]
+ @array.send(@method, (...1).step(-2)).should == [5, 3]
+ @array.send(@method, (...1).step(-3)).should == [5, 2]
+ @array.send(@method, (...1).step(-4)).should == [5]
+ @array.send(@method, (...1).step(-5)).should == [5]
+
+ @array.send(@method, (..-5).step(-1)).should == [5, 4, 3, 2, 1]
+ @array.send(@method, (..-5).step(-2)).should == [5, 3, 1]
+ @array.send(@method, (..-5).step(-3)).should == [5, 2]
+ @array.send(@method, (..-5).step(-4)).should == [5, 1]
+ @array.send(@method, (..-5).step(-5)).should == [5]
+ @array.send(@method, (..-5).step(-6)).should == [5]
+
+ @array.send(@method, (...-5).step(-1)).should == [5, 4, 3, 2]
+ @array.send(@method, (...-5).step(-2)).should == [5, 3]
+ @array.send(@method, (...-5).step(-3)).should == [5, 2]
+ @array.send(@method, (...-5).step(-4)).should == [5]
+ @array.send(@method, (...-5).step(-5)).should == [5]
+
+ @array.send(@method, (4..1).step(-1)).should == [4, 3, 2, 1]
+ @array.send(@method, (4..1).step(-2)).should == [4, 2]
+ @array.send(@method, (4..1).step(-3)).should == [4, 1]
+ @array.send(@method, (4..1).step(-4)).should == [4]
+ @array.send(@method, (4..1).step(-5)).should == [4]
+
+ @array.send(@method, (4...1).step(-1)).should == [4, 3, 2]
+ @array.send(@method, (4...1).step(-2)).should == [4, 2]
+ @array.send(@method, (4...1).step(-3)).should == [4]
+ @array.send(@method, (4...1).step(-4)).should == [4]
+
+ @array.send(@method, (-2..1).step(-1)).should == [4, 3, 2, 1]
+ @array.send(@method, (-2..1).step(-2)).should == [4, 2]
+ @array.send(@method, (-2..1).step(-3)).should == [4, 1]
+ @array.send(@method, (-2..1).step(-4)).should == [4]
+ @array.send(@method, (-2..1).step(-5)).should == [4]
+
+ @array.send(@method, (-2...1).step(-1)).should == [4, 3, 2]
+ @array.send(@method, (-2...1).step(-2)).should == [4, 2]
+ @array.send(@method, (-2...1).step(-3)).should == [4]
+ @array.send(@method, (-2...1).step(-4)).should == [4]
+
+ @array.send(@method, (4..-5).step(-1)).should == [4, 3, 2, 1]
+ @array.send(@method, (4..-5).step(-2)).should == [4, 2]
+ @array.send(@method, (4..-5).step(-3)).should == [4, 1]
+ @array.send(@method, (4..-5).step(-4)).should == [4]
+ @array.send(@method, (4..-5).step(-5)).should == [4]
+
+ @array.send(@method, (4...-5).step(-1)).should == [4, 3, 2]
+ @array.send(@method, (4...-5).step(-2)).should == [4, 2]
+ @array.send(@method, (4...-5).step(-3)).should == [4]
+ @array.send(@method, (4...-5).step(-4)).should == [4]
+
+ @array.send(@method, (-2..-5).step(-1)).should == [4, 3, 2, 1]
+ @array.send(@method, (-2..-5).step(-2)).should == [4, 2]
+ @array.send(@method, (-2..-5).step(-3)).should == [4, 1]
+ @array.send(@method, (-2..-5).step(-4)).should == [4]
+ @array.send(@method, (-2..-5).step(-5)).should == [4]
+
+ @array.send(@method, (-2...-5).step(-1)).should == [4, 3, 2]
+ @array.send(@method, (-2...-5).step(-2)).should == [4, 2]
+ @array.send(@method, (-2...-5).step(-3)).should == [4]
+ @array.send(@method, (-2...-5).step(-4)).should == [4]
+ end
end
end
+
+ it "can accept nil...nil ranges" do
+ a = [0, 1, 2, 3, 4, 5]
+ a.send(@method, eval("(nil...nil)")).should == a
+ a.send(@method, (...nil)).should == a
+ a.send(@method, eval("(nil..)")).should == a
+ end
end
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-25 12:46:25 +0000