我是您的助手，以下是您需要翻译的内容：
我正在跟随Udemy上的Learn Spring 5等课程，现在到了测试应用程序的部分。到目前为止一切都正常，我能够连接到PostgreSQL数据库，但是现在我被卡在这个测试失败的地方已经两天了。
我不明白是什么原因导致测试失败。应用程序可以运行，但测试不行。以下是测试类：
package com.ghevi.dao;
import com.ghevi.pma.ProjectManagementApplication;
import com.ghevi.pma.dao.ProjectRepository;
import com.ghevi.pma.entities.Project;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.autoconfigure.orm.jpa.DataJpaTest;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.jdbc.Sql;
import org.springframework.test.context.jdbc.SqlGroup;
import org.springframework.test.context.junit4.SpringRunner;
import static org.junit.Assert.assertEquals;
@ContextConfiguration(classes= ProjectManagementApplication.class)
@RunWith(SpringRunner.class)
@DataJpaTest // for temporary databases like h2
@SqlGroup({
@Sql(executionPhase = Sql.ExecutionPhase.BEFORE_TEST_METHOD, scripts = {"classpath:schema.sql", "classpath:data.sql"}),
@Sql(executionPhase = Sql.ExecutionPhase.AFTER_TEST_METHOD, scripts = "classpath:drop.sql")
})
public class ProjectRepositoryIntegrationTest {
@Autowired
ProjectRepository proRepo;
@Test
public void ifNewProjectSaved_thenSuccess(){
Project newProject = new Project("New Test Project", "COMPLETE", "Test description");
proRepo.save(newProject);
assertEquals(5, proRepo.findAll().size());
}
}
以下是堆栈跟踪：
员工类（请忽略注释，它们可能是垃圾）：
package com.ghevi.pma.entities;
import javax.persistence.*;
import java.util.List;
@Entity
public class Employee {
@Id
@GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "employee_seq") // AUTO for data insertion in the class projmanagapplication (the commented out part), IDENTITY let hibernate use the database id counter.
private long employeeId; // The downside of IDENTITY is that if we batch a lot of employees or projects it will be much slower to update them, we use SEQUENCE now that we have schema.sql (spring does batch update)
private String firstName;
private String lastName;
private String email;
// @ManyToOne many employees can be assigned to one project
// Cascade, the query done on projects it's also done on children entities
@ManyToMany(cascade = {CascadeType.DETACH, CascadeType.MERGE, CascadeType.REFRESH, CascadeType.PERSIST}, // Standard in the industry, dont use the REMOVE (if delete project delete also children) or ALL (because include REMOVE)
fetch = FetchType.LAZY) // LAZY is industry standard it loads project into memory, EAGER load also associated entities so it slows the app, so we use LAZY and call child entities later
//@JoinColumn(name="project_id") // Foreign key, creates a new table on Employee database
@JoinTable(name = "project_employee", // Merge the two table using two foreign keys
joinColumns = @JoinColumn(name="employee_id"),
inverseJoinColumns = @JoinColumn(name="project_id"))
private List<Project> projects;
public Employee(){
}
public Employee(String firstName, String lastName, String email) {
this.firstName = firstName;
this.lastName = lastName;
this.email = email;
}
public List<Project> getProjects() {
return projects;
}
public void setProjects(List<Project> projects) {
this.projects = projects;
}
/* Replaced with List<Project>
public Project getProject() {
return project;
}
public void setProject(Project project) {
this.project = project;
}
*/
public long getEmployeeId() {
return employeeId;
}
public void setEmployeeId(long employeeId) {
this.employeeId = employeeId;
}
public String getFirstName() {
return firstName;
}
public void setFirstName(String firstName) {
this.firstName = firstName;
}
public String getLastName() {
return lastName;
}
public void setLastName(String lastName) {
this.lastName = lastName;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
}
此外，这是我引用那些序列的
schema.sql文件，因为该文件由测试运行，我刚刚注意到IntelliJ在该文件中标记了一些错误。例如，它将某些空格和TABLE中的T标记为红色。expected one of the following: EDITIONING FORCE FUNCTION NO OR PACKAGE PROCEDURE SEQUENCE TRIGGER TYPE VIEW identifier
CREATE SEQUENCE IF NOT EXISTS employee_seq;
CREATE TABLE IF NOT EXISTS employee ( <-- here there is an error " expected: "
employee_id BIGINT NOT NULL DEFAULT nextval('employee_seq') PRIMARY KEY,
email VARCHAR(100) NOT NULL,
first_name VARCHAR(100) NOT NULL,
last_name VARCHAR(100) NOT NULL
);
CREATE SEQUENCE IF NOT EXISTS project_seq;
CREATE (the error i described is here -->) TABLE IF NOT EXISTS project (
project_id BIGINT NOT NULL DEFAULT nextval('project_seq') PRIMARY KEY,
name VARCHAR(100) NOT NULL,
stage VARCHAR(100) NOT NULL,
description VARCHAR(500) NOT NULL
);
CREATE TABLE IF NOT EXISTS project_employee ( <--Here again an error "expected:"
project_id BIGINT REFERENCES project,
employee_id BIGINT REFERENCES employee
);