Test class for the builder {@link CustomerBuilder} with AssertJ assertions

CustomerBuilderAssertjTest.java

public class CustomerBuilderAssertjTest {

  private Customer customer;

  @Before
  public void setUp() throws Exception {
    customer = Customer.newBuilder()
        .setFirstName("Max")
        .setLastName("Mustermann")
        .setEmail("max.mustermann@openknowledge.de")
        .build();
  }

  @Test
  public void build() throws Exception {
    assertThat(customer).as("check customer for null").isNotNull();
    assertThat(customer.getFirstName()).isEqualTo("Max");
    assertThat(customer.getLastName()).isEqualTo("Mustermann");
    assertThat(customer.getEmail()).isEqualTo("max.mustermann@openknowledge.de");
  }
}