@Parameterized.Parameters(name = "test({0},{1})")
        public static Iterable<Object[]> data() {
            return Arrays.asList(new Object[][]{
                    {new NormalDistribution(2), new NormalDistribution(2)},
                    {new NormalDistribution(2), new NormalDistribution(5)},
                    {new PowerLawDistribution(2.1), new PowerLawDistribution(2.1)},
                    {new PowerLawDistribution(2.9), new PowerLawDistribution(2.9)},
                    {new PowerLawDistribution(3.9), new PowerLawDistribution(3.9)},
                    {new PowerLawDistribution(2.3), new PowerLawDistribution(2.8)}
            });
        }
@author Stephen Mallette (http://stephen.genoprime.com)
gremlin-test/src/main/java/org/apache/tinkerpop/gremlin/algorithm/generator/DistributionGeneratorTest.java