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* For easier modifications of ruby/spec by MRI developers. * .gitignore: track changes under spec. * spec/mspec, spec/rubyspec: add in-tree mspec and ruby/spec. These files can therefore be updated like any other file in MRI. Instructions are provided in spec/README. [Feature #13156] [ruby-core:79246] git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@58595 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
65 lines
1.8 KiB
Ruby
65 lines
1.8 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.[]" do
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it "requires arrays as parameters" do
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lambda { Matrix[5] }.should raise_error(TypeError)
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lambda { Matrix[nil] }.should raise_error(TypeError)
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lambda { Matrix[1..2] }.should raise_error(TypeError)
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lambda { Matrix[[1, 2], 3] }.should raise_error(TypeError)
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end
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it "creates an empty Matrix with no arguments" do
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m = Matrix[]
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m.column_size.should == 0
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m.row_size.should == 0
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end
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it "raises for non-rectangular matrices" do
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lambda{ Matrix[ [0], [0,1] ] }.should \
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raise_error(Matrix::ErrDimensionMismatch)
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lambda{ Matrix[ [0,1], [0,1,2], [0,1] ]}.should \
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raise_error(Matrix::ErrDimensionMismatch)
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end
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it "accepts vector arguments" do
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a = Matrix[Vector[1, 2], Vector[3, 4]]
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a.should be_an_instance_of(Matrix)
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a.should == Matrix[ [1, 2], [3, 4] ]
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end
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it "tries to calls :to_ary on arguments" do
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array = mock('ary')
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array.should_receive(:to_ary).and_return([1,2])
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Matrix[array, [3,4] ].should == Matrix[ [1,2], [3,4] ]
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end
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it "returns a Matrix object" do
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Matrix[ [1] ].should be_an_instance_of(Matrix)
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end
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it "can create an nxn Matrix" do
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m = Matrix[ [20,30], [40.5, 9] ]
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m.row_size.should == 2
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m.column_size.should == 2
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m.column(0).should == Vector[20, 40.5]
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m.column(1).should == Vector[30, 9]
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m.row(0).should == Vector[20, 30]
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m.row(1).should == Vector[40.5, 9]
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end
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it "can create a 0xn Matrix" do
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m = Matrix[ [], [], [] ]
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m.row_size.should == 3
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m.column_size.should == 0
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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[ [20,30], [40.5, 9] ].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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