1 files changed, 43 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..57ec0b2540
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+++ b/spec/ruby/core/array/select_spec.rb
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+require_relative '../../spec_helper'
+require_relative '../enumerable/shared/enumeratorized'
+require_relative 'fixtures/classes'
+require_relative 'shared/enumeratorize'
+require_relative 'shared/iterable_and_tolerating_size_increasing'
+require_relative 'shared/keep_if'
+
+describe "Array#select" do
+  it_behaves_like :enumeratorize, :select
+
+  it_behaves_like :array_iterable_and_tolerating_size_increasing, :select
+
+  before :each do
+    @object = [1,2,3]
+  end
+  it_behaves_like :enumeratorized_with_origin_size, :select
+
+  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.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 == nil
+  end
+
+  it_behaves_like :keep_if, :select!
+end