Não consegui encontrar o pacote correta para importar o assertThat

Oi!

Os imports dessa classe de teste:

import med.voll.api.domain.consulta.Consulta;
import med.voll.api.domain.endereco.DadosEndereco;
import med.voll.api.domain.paciente.DadosCadastroPaciente;
import med.voll.api.domain.paciente.Paciente;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.jdbc.AutoConfigureTestDatabase;
import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
import org.springframework.boot.test.autoconfigure.orm.jpa.TestEntityManager;
import org.springframework.test.context.ActiveProfiles;

import java.time.DayOfWeek;
import java.time.LocalDate;
import java.time.LocalDateTime;
import java.time.temporal.TemporalAdjusters;

import static org.assertj.core.api.Assertions.assertThat;