Cucumber Java: Data Tables Comparison

Hi,

1. In the data table class equals method exists, which returns true or false, which you can use to compare 2 data tables. For your test to pass or fail, you can use it along with assert like this

Assert.assertTrue(dataTable.equals(actual));

Implementation of the equal method in Data Table Class

@Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;
    DataTable dataTable = (DataTable) o;
    return raw.equals(dataTable.raw);
  }

2. For diff method when both tables are equal your test will pass otherwise test will fail since diff method throw error when tables are not equal

Usage: 

dataTable.diff(actual);

Implementation in Data Table Class:

public void diff(DataTable actual) throws TableDiffException {
    TableDiffer tableDiffer = new TableDiffer(this, actual);
    DataTableDiff dataTableDiff = tableDiffer.calculateDiffs();
    if (!dataTableDiff.isEmpty()) {
      throw TableDiffException.diff(dataTableDiff);
    }
  }