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Diffstat (limited to 'spec/ruby/core/array/shared/index.rb')
-rw-r--r-- | spec/ruby/core/array/shared/index.rb | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/spec/ruby/core/array/shared/index.rb b/spec/ruby/core/array/shared/index.rb new file mode 100644 index 0000000000..a9896554f2 --- /dev/null +++ b/spec/ruby/core/array/shared/index.rb @@ -0,0 +1,37 @@ +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 + + it "accepts a block instead of an argument" do + [4, 2, 1, 5, 1, 3].send(@method) {|x| x < 2}.should == 2 + end + + it "ignores the block if there is an argument" do + -> { + [4, 2, 1, 5, 1, 3].send(@method, 5) {|x| x < 2}.should == 3 + }.should complain(/given block not used/) + end + + describe "given no argument and no block" do + it "produces an Enumerator" do + [].send(@method).should be_an_instance_of(Enumerator) + end + end +end |