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describe :array_collect, :shared => true do
it "returns a copy of array with each element replaced by the value returned by block" do
a = ['a', 'b', 'c', 'd']
b = a.send(@method) { |i| i + '!' }
b.should == ["a!", "b!", "c!", "d!"]
b.object_id.should_not == a.object_id
end
it "does not return subclass instance" do
ArraySpecs::MyArray[1, 2, 3].send(@method) { |x| x + 1 }.should be_an_instance_of(Array)
end
it "does not change self" do
a = ['a', 'b', 'c', 'd']
b = a.send(@method) { |i| i + '!' }
a.should == ['a', 'b', 'c', 'd']
end
it "returns the evaluated value of block if it broke in the block" do
a = ['a', 'b', 'c', 'd']
b = a.send(@method) {|i|
if i == 'c'
break 0
else
i + '!'
end
}
b.should == 0
end
ruby_version_is '' ... '1.9' do
it "returns a copy of self if no block given" do
a = [1, 2, 3]
copy = a.send(@method)
copy.should == a
copy.should_not equal(a)
end
end
ruby_version_is '1.9' do
it "returns an Enumerator when no block given" do
a = [1, 2, 3]
a.send(@method).should be_an_instance_of(enumerator_class)
end
end
it "does not copy tainted status" do
a = [1, 2, 3]
a.taint
a.send(@method){|x| x}.tainted?.should be_false
end
ruby_version_is '1.9' do
it "does not copy untrusted status" do
a = [1, 2, 3]
a.untrust
a.send(@method){|x| x}.untrusted?.should be_false
end
end
end
describe :array_collect_b, :shared => true do
it "replaces each element with the value returned by block" do
a = [7, 9, 3, 5]
a.send(@method) { |i| i - 1 }.should equal(a)
a.should == [6, 8, 2, 4]
end
it "returns self" do
a = [1, 2, 3, 4, 5]
b = a.send(@method) {|i| i+1 }
a.object_id.should == b.object_id
end
it "returns the evaluated value of block but its contents is partially modified, if it broke in the block" do
a = ['a', 'b', 'c', 'd']
b = a.send(@method) {|i|
if i == 'c'
break 0
else
i + '!'
end
}
b.should == 0
a.should == ['a!', 'b!', 'c', 'd']
end
ruby_version_is '' ... '1.8.7' do
it "raises LocalJumpError if no block given" do
a = [1, 2, 3]
lambda { a.send(@method) }.should raise_error(LocalJumpError)
end
end
ruby_version_is '1.8.7' do
it "returns an Enumerator when no block given, and the enumerator can modify the original array" do
a = [1, 2, 3]
enum = a.send(@method)
enum.should be_an_instance_of(enumerator_class)
enum.each{|i| "#{i}!" }
a.should == ["1!", "2!", "3!"]
end
end
it "keeps tainted status" do
a = [1, 2, 3]
a.taint
a.tainted?.should be_true
a.send(@method){|x| x}
a.tainted?.should be_true
end
ruby_version_is '1.9' do
it "keeps untrusted status" do
a = [1, 2, 3]
a.untrust
a.send(@method){|x| x}
a.untrusted?.should be_true
end
end
describe "when frozen" do
ruby_version_is '' ... '1.9' do
it "raises a TypeError" do
lambda { ArraySpecs.frozen_array.send(@method) {} }.should raise_error(TypeError)
end
it "raises a TypeError when empty" do
lambda { ArraySpecs.empty_frozen_array.send(@method) {} }.should raise_error(TypeError)
end
ruby_version_is '1.8.7' do
it "raises a TypeError when calling #each on the returned Enumerator" do
enumerator = ArraySpecs.frozen_array.send(@method)
lambda { enumerator.each {|x| x } }.should raise_error(TypeError)
end
it "raises a TypeError when calling #each on the returned Enumerator when empty" do
enumerator = ArraySpecs.empty_frozen_array.send(@method)
lambda { enumerator.each {|x| x } }.should raise_error(TypeError)
end
end
end
ruby_version_is '1.9' do
it "raises a RuntimeError" do
lambda { ArraySpecs.frozen_array.send(@method) {} }.should raise_error(RuntimeError)
end
it "raises a RuntimeError when empty" do
lambda { ArraySpecs.empty_frozen_array.send(@method) {} }.should raise_error(RuntimeError)
end
it "raises a RuntimeError when calling #each on the returned Enumerator" do
enumerator = ArraySpecs.frozen_array.send(@method)
lambda { enumerator.each {|x| x } }.should raise_error(RuntimeError)
end
it "raises a RuntimeError when calling #each on the returned Enumerator when empty" do
enumerator = ArraySpecs.empty_frozen_array.send(@method)
lambda { enumerator.each {|x| x } }.should raise_error(RuntimeError)
end
end
end
end
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