Cucumber date format workaround

dates.feature

Feature: Demonstration of some date workarounds

Scenario: Simple formatting of dates with annotation
  Given the dates 2018-01-01 and 2018-01-31
  When the earliest date calc is run
  Then the earliest date is 2018-01-01
  
Scenario: Failing scenario: date format is wrong 
  Given the list of dates: 2018-01-01,2018-01-31

Scenario: Earliest date as list with US month first format, uch!
  Given the list of dates: 1/1/18, 1/31/18
  When the earliest date calc is run
  Then the earliest date is 2018-01-01
  
Scenario: Earliest date as table with comma in format
  Given the table of dates:
    | Jan 1, 2018 |
    | May 2, 2018 |
  When the earliest date calc is run
  Then the earliest date is 2018-01-01

Scenario: Failing scenario: Who is youngest - wrong date format
  Given the following people
  | firstName | lastName | dateOfBirth |
  |   John    |  Doe     | 1990-05-31  |
  |   Jane    |  Doe     | 1995-01-01  |
  When the youngest calc runs
  Then the answer is Jane Doe
  
Scenario: Birthdays - with birth dates
  Given the following people
  | firstName | lastName | dateOfBirth  |
  |   John    |  Doe     | May 31, 1990 |
  |   Jane    |  Doe     | Jan 1, 1995  |
  When the youngest calc runs
  Then the answer is Jane Doe
  And the first person in the list should still be John

Steps.java

package com.failedtofunction.example.cumcumberdates;

import static org.junit.Assert.assertEquals;

import java.util.ArrayList;
import java.util.Date;
import java.util.List;

import com.failedtofunction.example.cucumberdates.DateUtilities;
import com.failedtofunction.example.cucumberdates.Person;

import cucumber.api.Format;
import cucumber.api.java.en.Given;
import cucumber.api.java.en.Then;
import cucumber.api.java.en.When;

public class Steps {
    private Date earliestDate;
    private List<Date> dates;
    private String youngestResult = "the youngest";
    private List<Person> people;

	@Given("^the dates (.*) and (.*)$")
	public void givenDates(
			@Format("yyyy-MM-dd") Date first,
			@Format("yyyy-MM-dd") Date second) {
		this.dates = new ArrayList<>();
		dates.add(first);
		dates.add(second);
	}
	
	@When("^the earliest date calc is run$")
	public void earliestDate() {
		earliestDate = DateUtilities.earliestDate(dates);
	}
	
	@Then("^the earliest date is (.*)$")
	public void checkEarliestDate(@Format("yyyy-MM-dd") Date expected) {
		assertEquals("Wrong earliest date", expected, earliestDate);
	}

	@Given("^the list of dates: (.*)$")
	public void dateList(List<Date> dates) {
		this.dates = dates;
	}

	@Given("^the table of dates:$")
	public void dateTable(List<Date> dates) {
		this.dates = dates;
	}
	
	@Given("^the following people$")
	public void givenPeople(List<Person> people) {
		this.people = people;
	}
	
	@When("^the youngest calc runs$")
	public void youngestCalc() throws Exception {
		Person youngest = DateUtilities.youngest(people);
		youngestResult = String.format("%s %s", youngest.getFirstName(), youngest.getLastName());
		System.out.println("The youngest is: " + youngestResult);
	}

	@Then("^the answer is (.*)$")
	public void youngestIs(String youngest) throws Exception {
		assertEquals(youngest, youngestResult);
	}
	
	@Then("^the first person in the list should still be (.*)$")
	public void firstPersonInListStill(String expected) throws Exception {
	    assertEquals(expected, people.get(0).getFirstName());
	}
}