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#!/usr/bin/env ruby
require 'nlp_ruby'
require 'test/unit'
class TestDAG < Test::Unit::TestCase
def test_viterbi
semiring = ViterbiSemiring.new
graph, nodes_by_label = DAG::read_graph_from_json('dags/example.json', semiring)
DAG::viterbi(graph, semiring, nodes_by_label['0'])
assert_equal(nodes_by_label['100'].score, 0.003)
end
# no negative weights here!
def test_dijkstra
semiring = RealSemiring.new
graph, nodes_by_label = DAG::read_graph_from_json('dags/example.json', semiring)
DAG::dijkstra(graph, semiring, nodes_by_label['0'])
assert_equal(nodes_by_label['100'].score, 0.5)
end
def test_bellman_ford
semiring = RealSemiring.new
graph, nodes_by_label = DAG::read_graph_from_json('dags/example.json', semiring)
DAG::bellman_ford(graph, semiring, nodes_by_label['0'])
assert_equal(nodes_by_label['100'].score, 0.5)
end
def test_floyd
graph, nodes_by_label = DAG::read_graph_from_json('dags/example.json')
d = DAG::floyd(graph)
assert_equal(d[0][graph.size-1], 0.5)
end
def test_dfs
graph, nodes_by_label = DAG::read_graph_from_json('dags/example.json')
assert_equal(nodes_by_label['100'], DAG::dfs(nodes_by_label['0'], '100'))
end
def test_bfs
graph, nodes_by_label = DAG::read_graph_from_json('dags/example.json')
assert_equal(nodes_by_label['100'], DAG::bfs(nodes_by_label['0'], '100'))
end
end
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