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require File.expand_path(File.dirname(__FILE__) + '/../test_helper')
begin
# Load library
require 'graphviz'
class GraphDefaultTest < Test::Unit::TestCase
def setup
@graph = StateMachine::Graph.new('test')
end
def test_should_have_a_default_font
assert_equal 'Arial', @graph.font
end
def test_should_use_current_directory_for_filepath
assert_equal './test.png', @graph.file_path
end
def test_should_have_a_default_file_format
assert_equal 'png', @graph.file_format
end
def test_should_have_a_default_orientation
assert_equal 'TB', @graph[:rankdir].source
end
end
class GraphNodesTest < Test::Unit::TestCase
def setup
@graph = StateMachine::Graph.new('test')
@node = @graph.add_nodes('parked', :shape => 'ellipse')
end
def test_should_return_generated_node
assert_not_nil @node
end
def test_should_use_specified_name
assert_equal @node, @graph.get_node('parked')
end
def test_should_use_specified_options
assert_equal 'ellipse', @node['shape'].to_s.gsub('"', '')
end
def test_should_set_default_font
assert_equal 'Arial', @node['fontname'].to_s.gsub('"', '')
end
end
class GraphEdgesTest < Test::Unit::TestCase
def setup
@graph = StateMachine::Graph.new('test')
@graph.add_nodes('parked', :shape => 'ellipse')
@graph.add_nodes('idling', :shape => 'ellipse')
@edge = @graph.add_edges('parked', 'idling', :label => 'ignite')
end
def test_should_return_generated_edge
assert_not_nil @edge
end
def test_should_use_specified_nodes
assert_equal 'parked', @edge.node_one(false)
assert_equal 'idling', @edge.node_two(false)
end
def test_should_use_specified_options
assert_equal 'ignite', @edge['label'].to_s.gsub('"', '')
end
def test_should_set_default_font
assert_equal 'Arial', @edge['fontname'].to_s.gsub('"', '')
end
end
class GraphOutputTest < Test::Unit::TestCase
def setup
@graph_name = "test_#{rand(1000000)}"
@graph = StateMachine::Graph.new(@graph_name)
@graph.add_nodes('parked', :shape => 'ellipse')
@graph.add_nodes('idling', :shape => 'ellipse')
@graph.add_edges('parked', 'idling', :label => 'ignite')
@graph.output
end
def test_should_save_file
assert File.exist?("./#{@graph_name}.png")
end
def teardown
FileUtils.rm Dir["./#{@graph_name}.png"]
end
end
rescue LoadError
$stderr.puts 'Skipping GraphViz StateMachine::Graph tests. `gem install ruby-graphviz` >= v0.9.17 and try again.'
end unless ENV['TRAVIS']
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