class TestEdgePropertiesMap

# File test/edge_properties_map_test.rb, line 9
def setup
  @edge_properties = {
      [1, 2] => 1,
      [2, 3] => 3,
      [1, 3] => 7
  }

  @edge_properties_lambda = lambda { |edge| @edge_properties[edge] }
end

# File test/edge_properties_map_test.rb, line 19
def test_directed_graph
  properties_map = EdgePropertiesMap.new(@edge_properties, true)

  assert_equal(1, properties_map.edge_property(1, 2))
  assert_equal(3, properties_map.edge_property(2, 3))
  assert_equal(7, properties_map.edge_property(1, 3))

  assert_raise ArgumentError do
    properties_map.edge_property(2, 1)
  end
end

# File test/edge_properties_map_test.rb, line 43
def test_nil_properties
  assert_raise ArgumentError do
    EdgePropertiesMap.new(@edge_properties.merge([1, 4] => nil), false)
  end
end

# File test/edge_properties_map_test.rb, line 49
def test_non_negative_properties_map
  assert_raise ArgumentError do
    NonNegativeEdgePropertiesMap.new(@edge_properties.merge([1, 4] => -2), false)
  end
end

# File test/edge_properties_map_test.rb, line 31
def test_undirected_graph
  properties_map = EdgePropertiesMap.new(@edge_properties, false)

  assert_equal(1, properties_map.edge_property(1, 2))
  assert_equal(3, properties_map.edge_property(2, 3))
  assert_equal(7, properties_map.edge_property(1, 3))

  assert_equal(1, properties_map.edge_property(2, 1))
  assert_equal(3, properties_map.edge_property(3, 2))
  assert_equal(7, properties_map.edge_property(3, 1))
end

# File test/edge_properties_map_test.rb, line 55
def test_with_lambda
  properties_map = EdgePropertiesMap.new(@edge_properties_lambda, true)

  assert_equal(1, properties_map.edge_property(1, 2))
  assert_equal(3, properties_map.edge_property(2, 3))
  assert_equal(7, properties_map.edge_property(1, 3))
end