我正在尝试使用 Serenity 使用 Firefox 运行一个简单的测试。
这是我的 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>serenity.test</groupId>
<artifactId>firefox</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<serenity.version>1.4.0</serenity.version>
<serenity.maven.version>1.4.0</serenity.maven.version>
<webdriver.driver>firefox</webdriver.driver>
<surefire.rerunFailingTestsCount>0</surefire.rerunFailingTestsCount>
</properties>
<build>
<plugins>
<plugin>
<artifactId>maven-failsafe-plugin</artifactId>
<version>2.18</version>
<configuration>
<includes>
<include>**/features/**/*.java</include>
</includes>
<systemProperties>
<webdriver.driver>${webdriver.driver}</webdriver.driver>
<surefire.rerunFailingTestsCount>${surefire.rerunFailingTestsCount}</surefire.rerunFailingTestsCount>
</systemProperties>
</configuration>
</plugin>
<plugin>
<groupId>net.serenity-bdd.maven.plugins</groupId>
<artifactId>serenity-maven-plugin</artifactId>
<version>${serenity.maven.version}</version>
<dependencies>
<dependency>
<groupId>net.serenity-bdd</groupId>
<artifactId>serenity-core</artifactId>
<version>${serenity.version}</version>
</dependency>
</dependencies>
<executions>
<execution>
<id>serenity-reports</id>
<phase>post-integration-test</phase>
<goals>
<goal>aggregate</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-surefire-plugin</artifactId>
<version>2.20</version>
<configuration>
<testFailureIgnore>true</testFailureIgnore>
</configuration>
</plugin>
</plugins>
</build>
<dependencies>
<dependency>
<groupId>net.serenity-bdd</groupId>
<artifactId>serenity-core</artifactId>
<version>${serenity.version}</version>
</dependency>
<dependency>
<groupId>net.serenity-bdd</groupId>
<artifactId>serenity-screenplay</artifactId>
<version>${serenity.version}</version>
</dependency>
<dependency>
<groupId>net.serenity-bdd</groupId>
<artifactId>serenity-screenplay-webdriver</artifactId>
<version>${serenity.version}</version>
</dependency>
<dependency>
<groupId>net.serenity-bdd</groupId>
<artifactId>serenity-junit</artifactId>
<version>${serenity.version}</version>
</dependency>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>slf4j-simple</artifactId>
<version>1.7.18</version>
</dependency>
<dependency>
<groupId>com.google.inject</groupId>
<artifactId>guice</artifactId>
<version>3.0</version>
</dependency>
<dependency>
<groupId>org.assertj</groupId>
<artifactId>assertj-core</artifactId>
<version>1.7.0</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>
这是我的测试课：
public class FirefoxTest {
@Managed
WebDriver driver;
private Actor actor;
@Before
public void setup(){
actor = Actor.named("Firefox user");
actor.can(BrowseTheWeb.with(driver));
}
@Test
public void open_browser(){
actor.attemptsTo(Open.url("www.google.com"));
}
}
运行“mvn verify”我得到以下日志：
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building firefox 1.0-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ firefox ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ firefox ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ firefox ---
[INFO] Using 'UTF-8' encoding to copy filtered resources.
[INFO] skip non existing resourceDirectory C:\work\verso3\src\test\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:testCompile (default-testCompile) @ firefox ---
[INFO] Nothing to compile - all classes are up to date
[INFO]
[INFO] --- maven-surefire-plugin:2.20:test (default-test) @ firefox ---
[INFO]
[INFO] -------------------------------------------------------
[INFO] T E S T S
[INFO] -------------------------------------------------------
[INFO] Running features.FirefoxTest
[ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 0.629 s <<< FAILURE! - in features.FirefoxTest
[ERROR] open_browser(features.FirefoxTest) Time elapsed: 0.58 s <<< ERROR!
java.lang.NullPointerException
at features.FirefoxTest.open_browser(FirefoxTest.java:31)
[INFO]
[INFO] Results:
[INFO]
[ERROR] Errors:
[ERROR] FirefoxTest.open_browser:31 » NullPointer
[INFO]
[ERROR] Tests run: 1, Failures: 0, Errors: 1, Skipped: 0
[INFO]
[ERROR] There are test failures.
Please refer to C:\work\verso3\target\surefire-reports for the individual test results.
Please refer to dump files (if any exist) [date]-jvmRun[N].dump, [date].dumpstream and [date]-jvmRun[N].dumpstream.
[INFO]
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ firefox ---
[INFO] Building jar: C:\work\verso3\target\firefox-1.0-SNAPSHOT.jar
[INFO]
[INFO] --- serenity-maven-plugin:1.4.0:aggregate (serenity-reports) @ firefox ---
[INFO] current_project.base.dir: C:\work\verso3
[INFO] Generating test results for 0 tests
[INFO] 0 requirements loaded after 27 ms
[INFO] 0 related requirements found after 27 ms
[INFO] Generating test outcome reports: false
[INFO] Starting generating reports: 38 ms
[INFO] Configured report threads: 80
[INFO] Finished generating test results for 0 tests after 316 ms
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.337 s
[INFO] Finished at: 2017-06-08T13:20:18+03:00
[INFO] Final Memory: 17M/274M
[INFO] ------------------------------------------------------------------------
Process finished with exit code 0
那么这里发生了什么？为什么我得到那个空指针异常？我在这里做错了什么？
我使用的 Firefox 版本是 53.0.3（64 位）。