Tables in Gherkin - maven

Question

I am trying to compare between two tables and test the results using Gherkin but I don't know how to make it declare two lists in the #when section instead of one, like how it is shown below:
#When("^the integer table :$")
public void the_integer_table_(List<Integer> comp1, List<Integer> comp2) {
for(int i = 0; i < comp1.size(); i++) {
compare[i] = comp1.get(i);
}
for(int i = 0; i < comp2.size(); i++) {
compare2[i] = comp1.get(i);
}
comparer.comparer_tableau( compare, compare2);
}
Here is my .feature file:
Scenario: Compare the elements of two tables and return a boolean table as a result
Given I am starting a comparision operation
When these two integer table are entered :
|1|2|3|4|5|
|0|2|5|4|5|
Then I should see the correct answer is:
|false|true|false|true|true|
Here is what I get when I run it:
#When("^these two integer table two are entered :$") public void these_two_integer_table_two_are_entered_(DataTable arg1) { }
P.S: I did try and look for solutions but didn't find any.

Answer 1

You can change the step definition as given below and get the values of each row then compare it.
#When("^these two integer table are entered :$")
public void these_two_integer_table_are_entered(DataTable arg1) throws Throwable {
List<DataTableRow> lstRows=arg1.getGherkinRows();
Integer[] compare=new Integer[lstRows.get(0).getCells().size()];
System.out.println(compare.length);
Integer[] compare2=new Integer[lstRows.get(1).getCells().size()];
System.out.println(compare2.length);
//Get the first row values
for(int i = 0; i < compare.length; i++) {
compare[i] = Integer.valueOf(lstRows.get(0).getCells().get(i));
System.out.println(compare[i]);
}
//Get the second row values
for(int i = 0; i < compare2.length; i++) {
compare2[i] = Integer.valueOf(lstRows.get(1).getCells().get(i));
System.out.println(compare2[i]);
}
comparer.comparer_tableau( compare, compare2);
}
AFAIK, You can have only one table per step. But can get the each row values inside your definition.

Answer 2

Cucumber will interpret your When step to use one DataTable
When these two integer table are entered :
|1|2|3|4|5|
|0|2|5|4|5|
Instead of trying to enter two tables in one step, try entering them in two separate steps (one table per step) like this:
When the following integer table is entered :
|1|2|3|4|5|
And the following integer table is entered :
|0|2|5|4|5|

Answer 3

I would use a scenario outline like this and handle the log to retrieve values for each column in step definition. (split value string by comma and use values accordingly).
Scenario Outline : Compare the elements of two tables and return a boolean table as a result
Given I am starting a comparision operation
When integer '<table1>' values are entered
When integer '<table2>' values are entered
Then I should see the correct '<answer>'
Examples:
| table1 | table2 | answer |
| 1,2,3,4,5 | 0,2,5,4,5 | false,true,false,true,true |