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* Other ruby implementations use the spec/ruby directory. [Misc #13792] [ruby-core:82287] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
42 lines
1 KiB
Ruby
42 lines
1 KiB
Ruby
require File.expand_path('../../../spec_helper', __FILE__)
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require File.expand_path('../fixtures/classes', __FILE__)
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require 'matrix'
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describe "Matrix.columns" do
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before :each do
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@a = [1, 2]
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@b = [3, 4]
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@m = Matrix.columns([@a, @b])
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end
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it "creates a Matrix from argument columns" do
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@m.should be_an_instance_of(Matrix)
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@m.column(0).to_a.should == @a
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@m.column(1).to_a.should == @b
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end
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it "accepts Vectors as argument columns" do
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m = Matrix.columns([Vector[*@a], Vector[*@b]])
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m.should == @m
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m.column(0).to_a.should == @a
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m.column(1).to_a.should == @b
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end
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it "handles empty matrices" do
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e = Matrix.columns([])
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e.row_size.should == 0
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e.column_size.should == 0
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e.should == Matrix[]
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v = Matrix.columns([[],[],[]])
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v.row_size.should == 0
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v.column_size.should == 3
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v.should == Matrix[[], [], []].transpose
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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.columns([[1]]).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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