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require 'test/unit'
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require 'igraph'
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class TestGraph < Test::Unit::TestCase
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def test_laplacian
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g = IGraph.new(['A','B','C','D'],false)
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m = g.laplacian(false)
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assert_equal m.length, g.vcount
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m = g.laplacian(true)
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assert_equal m.length, g.vcount
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end
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end
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