I am learning Cucumber for unit testing and was trying to write unit tests for the Radix Sort code. But I am unable to figure out how to provide array of integers as an input to radix sort code from feature file.
I tried providing below input:
Scenario: Sorting integer array using radix sort within the specified range
Given The nonnull integer array 10,25,0,1
When radix sort is performed over the range from 0 to 7
Then validate if the array is sorted
For the above scenario cucumber expects below-mentioned code body:
@Given("The nonnull integer array {double}")
public void the_nonnull_integer_array(Double double1) {
// Write code here that turns the phrase above into concrete actions
throw new io.cucumber.java.PendingException();
}
If I try giving input as
Scenario: Sorting integer array using radix sort within the specified range
Given The nonnull integer array [10,25,0,1]
When radix sort is performed over the range from 0 to 7
Then validate if the array is sorted
then cucumber expects below-mentioned code body:
@Given("The nonnull integer array [{double}]")
public void the_nonnull_integer_array(Double double1) {
// Write code here that turns the phrase above into concrete actions
throw new io.cucumber.java.PendingException();
}
I also tried providing array within quotes
Scenario: Sorting integer array using radix sort within the specified range
Given The nonnull integer array "[10,25,0,1]"
When radix sort is performed over the range from 0 to 7
Then validate if the array is sorted
But then cucumber expects String as an input
@Given("The nonnull integer array {string}")
public void the_nonnull_integer_array(String string) {
// Write code here that turns the phrase above into concrete actions
throw new io.cucumber.java.PendingException();
}
I tried various other ways without any success. Can anyone suggest any better approach on handling such testing scenario?
There are lots of ways to do this!
Feature: Lists of integers
Scenario: Passing lists of integers
* With individual arguments 1, 2, 3
* With a custom parameter type [1, 2, 3]
* With a horizontal datatable
| 1 | 2 | 3 |
* With a vertical datatable
| 1 |
| 2 |
| 3 |
* With a horizontal list
| 1 | 2 | 3 |
* With a vertical list
| 1 |
| 2 |
| 3 |
package com.example;
import io.cucumber.datatable.DataTable;
import io.cucumber.java.ParameterType;
import io.cucumber.java.Transpose;
import io.cucumber.java.en.Given;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import static java.util.Arrays.asList;
import static org.junit.jupiter.api.Assertions.assertEquals;
public class StepDefinitions {
@Given("With individual arguments {int}, {int}, {int}")
public void with_individual_arguments(Integer int1, Integer int2, Integer int3) {
assertEquals(asList(int1, int2, int3), asList(1, 2, 3));
}
@ParameterType("\\[([0-9, ]*)\\]")
public List<Integer> listOfIntegers(String integers) {
return Arrays.stream(integers.split(", ?"))
.map(Integer::parseInt)
.collect(Collectors.toList());
}
@Given("With a custom parameter type {listOfIntegers}")
public void with_a_custom_parameter_type(List<Integer> list) {
assertEquals(list, asList(1, 2, 3));
}
@Given("With a horizontal datatable")
public void with_a_horizontal_datatable(@Transpose DataTable table) {
assertEquals(table.column(0), asList("1", "2", "3"));
}
@Given("With a vertical datatable")
public void with_a_vertical_datatable(DataTable table) {
assertEquals(table.column(0), asList("1", "2", "3"));
}
@Given("With a horizontal list")
public void with_a_horizontal_list(@Transpose List<Integer> list) {
assertEquals(list, asList(1, 2, 3));
}
@Given("With a vertical list")
public void with_a_vertical_list(List<Integer> list) {
assertEquals(list, asList(1, 2, 3));
}
}
The reason this doesn't work for you:
Given The nonnull integer array 10,25,0,1
Cucumber is trying to be helpful. Because it sees 10,25 it thinks you'll probably want a double parameter in a step definition and suggests that. If you add a space after each number Cucumber will suggest the a step definition that uses an integer.
Worth reading: