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Diffstat (limited to 'spec/ruby/core/array/select_spec.rb')
-rw-r--r-- | spec/ruby/core/array/select_spec.rb | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/spec/ruby/core/array/select_spec.rb b/spec/ruby/core/array/select_spec.rb new file mode 100644 index 0000000000..8b83acaa5f --- /dev/null +++ b/spec/ruby/core/array/select_spec.rb @@ -0,0 +1,36 @@ +require File.expand_path('../../../spec_helper', __FILE__) +require File.expand_path('../fixtures/classes', __FILE__) +require File.expand_path('../shared/enumeratorize', __FILE__) +require File.expand_path('../shared/keep_if', __FILE__) +require File.expand_path('../../enumerable/shared/enumeratorized', __FILE__) + +describe "Array#select" do + it_behaves_like :enumeratorize, :select + it_behaves_like :enumeratorized_with_origin_size, :select, [1,2,3] + + it "returns a new array of elements for which block is true" do + [1, 3, 4, 5, 6, 9].select { |i| i % ((i + 1) / 2) == 0}.should == [1, 4, 6] + end + + it "does not return subclass instance on Array subclasses" do + ArraySpecs::MyArray[1, 2, 3].select { true }.should be_an_instance_of(Array) + end + + it "properly handles recursive arrays" do + empty = ArraySpecs.empty_recursive_array + empty.select { true }.should == empty + empty.select { false }.should == [] + + array = ArraySpecs.recursive_array + array.select { true }.should == [1, 'two', 3.0, array, array, array, array, array] + array.select { false }.should == [] + end +end + +describe "Array#select!" do + it "returns nil if no changes were made in the array" do + [1, 2, 3].select! { true }.should be_nil + end + + it_behaves_like :keep_if, :select! +end |