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Testing Database Configuration and Backup Operations in Litemall

This test suite verifies database configuration, file operations, and environment property handling in the Litemall admin API. It includes tests for database connection parameters and backup file management operations.

Test Coverage Overview

The test suite covers three main areas of functionality:

Database configuration validation through environment property access
Backup file creation with date-based naming
Backup file cleanup and deletion operations

Integration points include Spring environment configuration and file system operations.

Implementation Analysis

The testing approach utilizes Spring Boot’s test framework with JUnit 4 integration. The suite employs @SpringBootTest and @WebAppConfiguration annotations for context loading, while using dependency injection for environment property access.

Key patterns include environment property extraction, file path manipulation, and date-based file naming conventions.

Technical Details

Testing tools and configuration:

JUnit 4 with SpringRunner
Spring Boot Test framework
Environment property injection
File I/O operations
LocalDate for timestamp generation

Best Practices Demonstrated

The test suite demonstrates several quality practices:

Proper separation of concerns between database and file operations
Clean test method organization
Effective use of Spring Boot test annotations
Proper resource cleanup with deleteOnExit()
Clear and focused test methods for specific functionality

linlinjava/litemall

litemall-admin-api/src/test/java/org/linlinjava/litemall/admin/DbTest.java

            
package org.linlinjava.litemall.admin;

import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.core.env.Environment;
import org.springframework.test.context.junit4.SpringRunner;
import org.springframework.test.context.web.WebAppConfiguration;

import java.io.File;
import java.io.IOException;
import java.time.LocalDate;

@WebAppConfiguration
@RunWith(SpringRunner.class)
@SpringBootTest
public class DbTest {
    @Autowired
    private Environment environment;

    @Test
    public void test() {
        String user = environment.getProperty("spring.datasource.druid.username");
        String password = environment.getProperty("spring.datasource.druid.password");
        String url = environment.getProperty("spring.datasource.druid.url");
        int index1 = url.indexOf("3306/");
        int index2 = url.indexOf("?");
        String db = url.substring(index1+5, index2);
        System.out.println(user);
        System.out.println(password);
        System.out.println(db);
    }

    @Test
    public void testFileCreate() throws IOException {
        LocalDate localDate = LocalDate.now();
        String fileName = localDate.toString() + ".sql";
        System.out.println(fileName);

        File file = new File("backup", fileName);
        file.getParentFile().mkdirs();
        file.createNewFile();
    }

    @Test
    public void testFileDelete() throws IOException {
        LocalDate localDate = LocalDate.now();
        String fileName = localDate.toString() + ".sql";
        System.out.println(fileName);

        File file = new File("backup", fileName);
        file.deleteOnExit();
    }
}