Регулярные выражения (ДВОЕТОЧИЕ)

package com.we2seek.demo;
 
import java.util.regex.Pattern;
 
public class App {
    public static final Pattern pattern = Pattern.compile("^([0-1][0-9]|2[0-3]):([0-5][0-9])$");
 
    public static void main(String[] args) {}
}

package com.we2seek.demo;
 
 
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
 
import java.util.Arrays;
 
public class AppTest {
 
    private String[] shouldBePassed;
    private String[] shouldBeFailed;
 
    @Before
    public void setUp() {
        shouldBePassed = new String[]{"09:01", "09:00", "08:59"};
        shouldBeFailed = new String[]{"08:60", "8:00", "08:0", "8:0"};
    }
 
 
    @Test
    public void patternTest() {
        System.out.println(String.format("Data: %s", Arrays.toString(shouldBePassed)));
        System.out.println(String.format("Pattern: %s", App.pattern));
 
        Arrays.stream(shouldBePassed).forEach(time -> {
            boolean match = App.pattern.matcher(time).matches();
            Assert.assertTrue(String.format("Time %s do not pass pattern %s", time, App.pattern), match);
        });
 
        Arrays.stream(shouldBeFailed).forEach(time -> {
            boolean match = App.pattern.matcher(time).matches();
            Assert.assertFalse(String.format("Time %s do not pass pattern %s", time, App.pattern), match);
        });
    }
 
}