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describe :array_index, :shared => true do
it "returns the index of the first element == to object" do
x = mock('3')
def x.==(obj) 3 == obj; end
[2, x, 3, 1, 3, 1].send(@method, 3).should == 1
[2, 3.0, 3, x, 1, 3, 1].send(@method, x).should == 1
end
it "returns 0 if first element == to object" do
[2, 1, 3, 2, 5].send(@method, 2).should == 0
end
it "returns size-1 if only last element == to object" do
[2, 1, 3, 1, 5].send(@method, 5).should == 4
end
it "returns nil if no element == to object" do
[2, 1, 1, 1, 1].send(@method, 3).should == nil
end
ruby_version_is "1.8.7" do
it "accepts a block instead of an argument" do
[4, 2, 1, 5, 1, 3].send(@method) {|x| x < 2}.should == 2
end
it "ignore the block if there is an argument" do
[4, 2, 1, 5, 1, 3].send(@method, 5) {|x| x < 2}.should == 3
end
describe "given no argument and no block" do
it "produces an Enumerator" do
[].send(@method).should be_an_instance_of(enumerator_class)
end
end
end
end
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