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-rw-r--r--spec/ruby/core/numeric/step_spec.rb120
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