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20 lines
556 B
Ruby
20 lines
556 B
Ruby
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require File.expand_path('../../fixtures/classes', __FILE__)
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require 'matrix'
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describe :matrix_identity, shared: true do
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it "returns a Matrix" do
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Matrix.send(@method, 2).should be_kind_of(Matrix)
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end
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it "returns a n x n identity matrix" do
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Matrix.send(@method, 3).should == Matrix.scalar(3, 1)
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Matrix.send(@method, 100).should == Matrix.scalar(100, 1)
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end
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describe "for a subclass of Matrix" do
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it "returns an instance of that subclass" do
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MatrixSub.send(@method, 2).should be_an_instance_of(MatrixSub)
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end
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end
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end
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