diff options
Diffstat (limited to 'spec/ruby/core/numeric/step_spec.rb')
| -rw-r--r-- | spec/ruby/core/numeric/step_spec.rb | 120 |
1 files changed, 20 insertions, 100 deletions
diff --git a/spec/ruby/core/numeric/step_spec.rb b/spec/ruby/core/numeric/step_spec.rb index 12369a47a2..1705fb1b4e 100644 --- a/spec/ruby/core/numeric/step_spec.rb +++ b/spec/ruby/core/numeric/step_spec.rb @@ -6,61 +6,25 @@ describe "Numeric#step" do describe 'with positional args' do it "raises an ArgumentError when step is 0" do - lambda { 1.step(5, 0) {} }.should raise_error(ArgumentError) + -> { 1.step(5, 0) {} }.should raise_error(ArgumentError) end it "raises an ArgumentError when step is 0.0" do - lambda { 1.step(2, 0.0) {} }.should raise_error(ArgumentError) + -> { 1.step(2, 0.0) {} }.should raise_error(ArgumentError) end before :all do # This lambda definition limits to return the arguments it receives. # It's needed to test numeric_step behaviour with positional arguments. - @step_args = ->(*args) { args } + @step = -> receiver, *args, &block { receiver.step(*args, &block) } end - it_behaves_like :numeric_step, :step describe "when no block is given" do - step_enum_class = Enumerator - ruby_version_is "2.6" do - step_enum_class = Enumerator::ArithmeticSequence - end - - it "returns an #{step_enum_class} when step is 0" do - 1.step(5, 0).should be_an_instance_of(step_enum_class) - end - - it "returns an #{step_enum_class} when step is 0.0" do - 1.step(2, 0.0).should be_an_instance_of(step_enum_class) - end + step_enum_class = Enumerator::ArithmeticSequence describe "returned #{step_enum_class}" do describe "size" do - ruby_version_is ""..."2.6" do - it "raises an ArgumentError when step is 0" do - enum = 1.step(5, 0) - lambda { enum.size }.should raise_error(ArgumentError) - end - - it "raises an ArgumentError when step is 0.0" do - enum = 1.step(2, 0.0) - lambda { enum.size }.should raise_error(ArgumentError) - end - end - - ruby_version_is "2.6" do - it "is infinity when step is 0" do - enum = 1.step(5, 0) - enum.size.should == Float::INFINITY - end - - it "is infinity when step is 0.0" do - enum = 1.step(2, 0.0) - enum.size.should == Float::INFINITY - end - end - it "defaults to an infinite size" do enum = 1.step enum.size.should == Float::INFINITY @@ -68,38 +32,15 @@ describe "Numeric#step" do end describe "type" do - ruby_version_is ""..."2.6" do - it "returns an instance of Enumerator" do - 1.step(10).class.should == Enumerator - end - end - - ruby_version_is "2.6" do - it "returns an instance of Enumerator::ArithmeticSequence" do - 1.step(10).class.should == Enumerator::ArithmeticSequence - end + it "returns an instance of Enumerator::ArithmeticSequence" do + 1.step(10).class.should == Enumerator::ArithmeticSequence end end end end - end describe 'with keyword arguments' do - it "doesn't raise an error when step is 0" do - lambda { 1.step(to: 5, by: 0) { break } }.should_not raise_error - end - - it "doesn't raise an error when step is 0.0" do - lambda { 1.step(to: 2, by: 0.0) { break } }.should_not raise_error - end - - it "should loop over self when step is 0 or 0.0" do - 1.step(to: 2, by: 0.0).take(5).should eql [1.0, 1.0, 1.0, 1.0, 1.0] - 1.step(to: 2, by: 0).take(5).should eql [1, 1, 1, 1, 1] - 1.1.step(to: 2, by: 0).take(5).should eql [1.1, 1.1, 1.1, 1.1, 1.1] - end - describe "when no block is given" do describe "returned Enumerator" do describe "size" do @@ -107,14 +48,6 @@ describe "Numeric#step" do 1.step(by: 42).size.should == infinity_value end - it "should return infinity_value when step is 0" do - 1.step(to: 5, by: 0).size.should == infinity_value - end - - it "should return infinity_value when step is 0.0" do - 1.step(to: 2, by: 0.0).size.should == infinity_value - end - it "should return infinity_value when ascending towards a limit of Float::INFINITY" do 1.step(to: Float::INFINITY, by: 42).size.should == infinity_value end @@ -135,64 +68,51 @@ describe "Numeric#step" do end before :all do - # This lambda transforms a positional step method args into - # keyword arguments. + # This lambda transforms a positional step method args into keyword arguments. # It's needed to test numeric_step behaviour with keyword arguments. - @step_args = ->(*args) do - kw_args = {to: args[0]} + @step = -> receiver, *args, &block do + kw_args = { to: args[0] } kw_args[:by] = args[1] if args.size == 2 - [kw_args] + receiver.step(**kw_args, &block) end end it_behaves_like :numeric_step, :step end describe 'with mixed arguments' do - it "doesn't raise an error when step is 0" do - lambda { 1.step(5, by: 0) { break } }.should_not raise_error + it " raises an ArgumentError when step is 0" do + -> { 1.step(5, by: 0) { break } }.should raise_error(ArgumentError) end - it "doesn't raise an error when step is 0.0" do - lambda { 1.step(2, by: 0.0) { break } }.should_not raise_error + it "raises an ArgumentError when step is 0.0" do + -> { 1.step(2, by: 0.0) { break } }.should raise_error(ArgumentError) end it "raises a ArgumentError when limit and to are defined" do - lambda { 1.step(5, 1, to: 5) { break } }.should raise_error(ArgumentError) + -> { 1.step(5, 1, to: 5) { break } }.should raise_error(ArgumentError) end it "raises a ArgumentError when step and by are defined" do - lambda { 1.step(5, 1, by: 5) { break } }.should raise_error(ArgumentError) - end - - it "should loop over self when step is 0 or 0.0" do - 1.step(2, by: 0.0).take(5).should eql [1.0, 1.0, 1.0, 1.0, 1.0] - 1.step(2, by: 0).take(5).should eql [1, 1, 1, 1, 1] - 1.1.step(2, by: 0).take(5).should eql [1.1, 1.1, 1.1, 1.1, 1.1] + -> { 1.step(5, 1, by: 5) { break } }.should raise_error(ArgumentError) end describe "when no block is given" do describe "returned Enumerator" do describe "size" do - it "should return infinity_value when step is 0" do - 1.step(5, by: 0).size.should == infinity_value - end - - it "should return infinity_value when step is 0.0" do - 1.step(2, by: 0.0).size.should == infinity_value - end end end end + before :all do # This lambda definition transforms a positional step method args into # a mix of positional and keyword arguments. # It's needed to test numeric_step behaviour with positional mixed with # keyword arguments. - @step_args = ->(*args) do + @step = -> receiver, *args, &block do if args.size == 2 - [args[0], {by: args[1]}] + receiver.step(args[0], by: args[1], &block) else - args + receiver.step(*args, &block) end end end |
