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require_relative '../fixtures/classes'
require 'matrix'
describe :matrix_imaginary, shared: true do
it "returns a matrix with the imaginary part of the elements of the receiver" do
Matrix[ [1, 2], [3, 4] ].send(@method).should == Matrix[ [0, 0], [0, 0] ]
Matrix[ [1.9, Complex(1,1)], [Complex(-2,0.42), 4] ].send(@method).should == Matrix[ [0, 1], [0.42, 0] ]
end
it "returns empty matrices on the same size if empty" do
Matrix.empty(0, 3).send(@method).should == Matrix.empty(0, 3)
Matrix.empty(3, 0).send(@method).should == Matrix.empty(3, 0)
end
describe "for a subclass of Matrix" do
it "returns an instance of that subclass" do
MatrixSub.ins.send(@method).should be_an_instance_of(MatrixSub)
end
end
end
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