package com.baeldung.commons.beanutils;

import java.lang.reflect.InvocationTargetException;
import java.util.Arrays;
import java.util.List;

import org.junit.Assert;
import org.junit.Test;

public class CourseServiceUnitTest {

    @Test
    public void givenCourse_whenSetValuesUsingPropertyUtil_thenReturnSetValues() throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
        Course course = new Course();
        String name = "Computer Science";
        List<String> codes = Arrays.asList("CS", "CS01");
        CourseService.setValues(course, name, codes);

        Assert.assertEquals(name, course.getName());
        Assert.assertEquals(2, course.getCodes().size());
        Assert.assertEquals("CS", course.getCodes().get(0));

        CourseService.setIndexedValue(course, 1, "CS02");
        Assert.assertEquals("CS02", course.getCodes().get(1));

        Student student = new Student();
        String studentName = "Joe";
        student.setName(studentName);

        CourseService.setMappedValue(course, "ST-1", student);
        Assert.assertEquals(student, course.getEnrolledStudent("ST-1"));

        String accessedStudentName = CourseService.getNestedValue(course, "ST-1", "name");
        Assert.assertEquals(studentName, accessedStudentName);
    }

    @Test
    public void givenCopyProperties_whenCopyCourseToCourseEntity_thenCopyPropertyWithSameName() throws IllegalAccessException, InvocationTargetException, NoSuchMethodException {
        Course course = new Course();
        course.setName("Computer Science");
        course.setCodes(Arrays.asList("CS"));
        course.setEnrolledStudent("ST-1", new Student());

        CourseEntity courseEntity = new CourseEntity();

        CourseService.copyProperties(course, courseEntity);
        Assert.assertNotNull(course.getName());
	Assert.assertNotNull(courseEntity.getName());
        Assert.assertEquals(course.getName(), courseEntity.getName());
        Assert.assertEquals(course.getCodes(), courseEntity.getCodes());
        Assert.assertNull(courseEntity.getStudent("ST-1"));
    }
}