Testing our code

GDS also provides a utility for writing unit tests for our code. We are going to test both implementations, PageRank and PageRankTol, starting with the former.

Test for the PageRank class

Let’s get started and detail the code block by block:

1. First, we must define our test class, called PageRankTest:

   @GdlExtension

   class PageRankTest {

2. Then, we must create a graph object from a Cypher string, using NATURAL orientation for the relationship (the default one):

      @GdlGraph(orientation = Orientation.NATURAL)

       private static final String TEST_GRAPH =

               "CREATE" +

                       "  (A:Node)" +

                       &quot...