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Add specs for proc taking |*a, **kw| arguments [Feature #16166] #882

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Oct 18, 2021
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Add specs for proc taking |*a, **kw| arguments [Feature #16166] #882

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26 changes: 26 additions & 0 deletions language/proc_spec.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -217,4 +217,30 @@
lambda { @l.call(obj) }.should raise_error(TypeError)
end
end

describe "taking |*a, **kw| arguments" do
before :each do
@p = proc { |*a, **kw| [a, kw] }
end

ruby_version_is ""..."2.7" do
it 'autosplats keyword arguments' do
@p.call([1, {a: 1}]).should == [[1], {a: 1}]
end
end

ruby_version_is "2.7"..."3.0" do
it 'autosplats keyword arguments and warns' do
-> {
@p.call([1, {a: 1}]).should == [[1], {a: 1}]
}.should complain(/warning: Using the last argument as keyword parameters is deprecated; maybe \*\* should be added to the call/)
end
end

ruby_version_is "3.0" do
it 'does not autosplat keyword arguments' do
@p.call([1, {a: 1}]).should == [[[1, {a: 1}]], {}]
end
end
end
end