Question

我正在尝试为具有从属性文件注入的字段值的类编写测试。我正在尝试利用TestPropertySource注释在运行TestNG测试时获取值，但它似乎忽略了我的属性文件。

有几十个类似的问题，我试着仔细阅读并尝试尽可能的实施。看来我的问题略有不同，原因如下：

“@TestPropertSource and @PropertySource don't work for JUnit”：谈论JUnit而不是TestNG（可能或可能不相关？），它还讨论了将属性值注入 test 阶级（与被测单位相对）。

“@TestPropertySource not working?”：讨论如何忽略缺失的属性，而不是如何修复它。

“@TestPropertySource is not loading properties”：还讨论了如何在测试类字段中注入值（尝试@RunWith或@SpringBootTest，但这也无济于事。）

Google search results中的其他链接也无济于事。

您需要做些什么才能使用@Value带注释字段的属性设置被测单元？我可以以某种方式请求spring为我提供班级实例，而不是自己new吗？

这是一个最小的复制品。

Foo.java

package nl.jeroenheijmans.stackoverflow.testngprops; import org.springframework.beans.factory.annotation.Value; import org.springframework.stereotype.Component; @Component public class Foo { @Value("${my.prop}") private String myProp; public String ExposeProp() { return myProp; } }

FooTest.java

package nl.jeroenheijmans.stackoverflow.testngprops; import org.springframework.test.context.TestPropertySource; import org.testng.Assert; import org.testng.annotations.Test; @TestPropertySource("classpath:application.properties") public class FooTest { @Test public void sanityCheck(){ Foo foo = new Foo(); Assert.assertNotNull(foo); // Success! } @Test public void testProperty() { Foo foo = new Foo(); Assert.assertEquals(foo.ExposeProp(), "checkcheck"); // Fail! } }

application.properties（在main和test文件夹中）

my.prop=checkcheck

Main.java

package nl.jeroenheijmans.stackoverflow.testngprops; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.boot.builder.SpringApplicationBuilder; import org.springframework.boot.web.support.SpringBootServletInitializer; import org.springframework.context.annotation.PropertySource; @SpringBootApplication @PropertySource(value = {"classpath:application.properties"}) public class Main extends SpringBootServletInitializer { public static void main(String... args) { SpringApplication.run(Main.class, args); } @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder application) { return application.sources(Main.class); } }

的pom.xml

<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>nl.jeroenheijmans.stackoverflow</groupId> <artifactId>testngprops</artifactId> <version>1.0-SNAPSHOT</version> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-actuator</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.mockito</groupId> <artifactId>mockito-all</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>org.testng</groupId> <artifactId>testng</artifactId> <scope>test</scope> </dependency> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-dependencies</artifactId> <version>${org.springframework.boot.version}</version> <type>pom</type> <scope>import</scope> </dependency> <dependency> <groupId>org.testng</groupId> <artifactId>testng</artifactId> <version>${testng.version}</version> <scope>test</scope> </dependency> <dependency> <groupId>org.mockito</groupId> <artifactId>mockito-all</artifactId> <version>${mockito.version}</version> <scope>test</scope> </dependency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>${maven.compiler.version}</version> <configuration> <source>${java.version}</source> <target>${java.version}</target> </configuration> </plugin> </plugins> </build> <properties> <java.version>1.8</java.version> <maven.compiler.version>3.5</maven.compiler.version> <org.springframework.boot.version>1.5.1.RELEASE</org.springframework.boot.version> <testng.version>6.9.10</testng.version> <mockito.version>1.9.5</mockito.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> </project>

Answer 1

以下是我解决这个问题的方法。

简而言之，我相信您错过了扩展org.springframework.test.context.testng.AbstractTestNGSpringContextTests并通过Foo注释为对象@Autowire使用依赖注入的部分。由于您正在实例化Foo对象，因此未将值注入其中，这解释了断言失败的原因。

<强> Main.java

package com.rationaleemotions.stackoverflow.qn45716815;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration;
import org.springframework.boot.autoconfigure.mongo.MongoAutoConfiguration;
import org.springframework.boot.builder.SpringApplicationBuilder;
import org.springframework.boot.web.support.SpringBootServletInitializer;
import org.springframework.context.annotation.PropertySource;

@SpringBootApplication(exclude = {MongoAutoConfiguration.class, MongoDataAutoConfiguration.class})
@PropertySource(value = {"classpath:application.properties"})
public class Main extends SpringBootServletInitializer {
    public static void main(String... args) {
        SpringApplication.run(Main.class, args);
    }

    @Override
    protected SpringApplicationBuilder configure(SpringApplicationBuilder application) {
        return application.sources(Main.class);
    }
}

使用@SpringBootApplication(exclude = {MongoAutoConfiguration.class, MongoDataAutoConfiguration.class})的原因可以在这个帖子中找到：Mongo tries to connect automatically to port 27017(localhost)

更新： 如果你有一个为Mongo正确设置的项目，那么排除Mongo配置是可选的，你不需要这样做。

以下是 FooTest.java 的外观

package com.rationaleemotions.stackoverflow.qn45716815;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.test.context.TestPropertySource;
import org.springframework.test.context.testng.AbstractTestNGSpringContextTests;
import org.testng.Assert;
import org.testng.annotations.Test;

@TestPropertySource("classpath:application.properties")
@SpringBootTest
public class FooTest extends AbstractTestNGSpringContextTests{
    @Autowired
    private Foo foo;

    @Test
    public void sanityCheck() {
        Assert.assertNotNull(foo);
    }

    @Test
    public void testProperty() {
        Assert.assertEquals(foo.ExposeProp(), "checkcheck");
    }
}

以下是我的maven依赖关系的样子

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-web</artifactId>
    <version>1.5.6.RELEASE</version>
    <exclusions>
        <exclusion>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-logging</artifactId>
        </exclusion>
    </exclusions>
</dependency>
<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-test</artifactId>
    <version>1.5.6.RELEASE</version>
    <scope>test</scope>
</dependency>

可以在此处找到向spring-boot-starter-logging添加排除项的原因：Disable Logback in SpringBoot

更新： 如果您的项目已正确设置以进行回退，则不需要执行此操作，并且您无需执行此操作。 < / p>

这是我运行此测试时的输出：

objc[36167]: Class JavaLaunchHelper is implemented in both /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/bin/java (0x1026784c0) and /Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/jre/lib/libinstrument.dylib (0x1027404e0). One of the two will be used. Which one is undefined.
log4j:WARN No appenders could be found for logger (org.springframework.test.context.BootstrapUtils).
log4j:WARN Please initialize the log4j system properly.

  .   ____          _            __ _ _
 /\\ / ___'_ __ _ _(_)_ __  __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
 \\/  ___)| |_)| | | | | || (_| |  ) ) ) )
  '  |____| .__|_| |_|_| |_\__, | / / / /
 =========|_|==============|___/=/_/_/_/
 :: Spring Boot ::        (v1.5.6.RELEASE)


===============================================
Default Suite
Total tests run: 2, Failures: 0, Skips: 0
===============================================

TestNG测试不使用TestPropertySource注入@Value

1 个答案: