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-rw-r--r--spec/rubyspec/core/array/transpose_spec.rb53
1 files changed, 0 insertions, 53 deletions
diff --git a/spec/rubyspec/core/array/transpose_spec.rb b/spec/rubyspec/core/array/transpose_spec.rb
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--- a/spec/rubyspec/core/array/transpose_spec.rb
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-require File.expand_path('../../../spec_helper', __FILE__)
-require File.expand_path('../fixtures/classes', __FILE__)
-
-describe "Array#transpose" do
- it "assumes an array of arrays and returns the result of transposing rows and columns" do
- [[1, 'a'], [2, 'b'], [3, 'c']].transpose.should == [[1, 2, 3], ["a", "b", "c"]]
- [[1, 2, 3], ["a", "b", "c"]].transpose.should == [[1, 'a'], [2, 'b'], [3, 'c']]
- [].transpose.should == []
- [[]].transpose.should == []
- [[], []].transpose.should == []
- [[0]].transpose.should == [[0]]
- [[0], [1]].transpose.should == [[0, 1]]
- end
-
- it "tries to convert the passed argument to an Array using #to_ary" do
- obj = mock('[1,2]')
- obj.should_receive(:to_ary).and_return([1, 2])
- [obj, [:a, :b]].transpose.should == [[1, :a], [2, :b]]
- end
-
- it "properly handles recursive arrays" do
- empty = ArraySpecs.empty_recursive_array
- empty.transpose.should == empty
-
- a = []; a << a
- b = []; b << b
- [a, b].transpose.should == [[a, b]]
-
- a = [1]; a << a
- b = [2]; b << b
- [a, b].transpose.should == [ [1, 2], [a, b] ]
- end
-
- it "raises a TypeError if the passed Argument does not respond to #to_ary" do
- lambda { [Object.new, [:a, :b]].transpose }.should raise_error(TypeError)
- end
-
- it "does not call to_ary on array subclass elements" do
- ary = [ArraySpecs::ToAryArray[1, 2], ArraySpecs::ToAryArray[4, 6]]
- ary.transpose.should == [[1, 4], [2, 6]]
- end
-
- it "raises an IndexError if the arrays are not of the same length" do
- lambda { [[1, 2], [:a]].transpose }.should raise_error(IndexError)
- end
-
- it "does not return subclass instance on Array subclasses" do
- result = ArraySpecs::MyArray[ArraySpecs::MyArray[1, 2, 3], ArraySpecs::MyArray[4, 5, 6]].transpose
- result.should be_an_instance_of(Array)
- result[0].should be_an_instance_of(Array)
- result[1].should be_an_instance_of(Array)
- end
-end