Junit入门到掌握-18-JUnit集成-Maven和Junit的集成

我前面说过，现在Java语言项目中流行的构建工具主要是ant和maven, 现在来看，maven更火和采用率更多，所以我不介绍ant和junit的集成，这篇来学习maven和junit的集成过程。

 

1.先把被测项目和junit测项目都转成maven项目

目前我们有这两个Java 工程，现在需要把这两个java工程都转换成maven工程。

右键ProteinTracker这个工程，选择configure->convert to maven project

这个界面什么都不填，直接默认点击Finish，在ProteinTrackerTest工程也需要重复上面步骤。

 

2.添加项目之间依赖

转成maven项目之后，会自动创建pom.xml，Eclipse已经自动帮你打开两个pom.xml

这里点击Junit这个测试项目的pom.xml，然后点击Dependencies，把ProteinTracker添加到当前这个测试项目的依赖中。

ProteinTracker
  ProteinTracker
  0.0.1-SNAPSHOT

把以上信息添加到

点击Add..

点击OK，接下来再添加一个junit依赖，有时候LATEST版本不识别，就需要写一个具体junit版本号。

点击OK

点击保存，依赖添加完成。

 

3.maven运行Junit用例

3.1 被测项目需要执行 maven install

选择被测项目（上面截图工程中第一个项目），右键-run as -maven install, 控制台会出现以下信息。

[INFO] Scanning for projects...
[INFO] 
[INFO] -------------------< ProteinTracker:ProteinTracker >--------------------
[INFO] Building ProteinTracker 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ProteinTracker ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\Users\yuangliu\eclipse-workspace2\ProteinTracker\src\main\resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ ProteinTracker ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!
[INFO] Compiling 3 source files to C:\Users\yuangliu\eclipse-workspace2\ProteinTracker\target\classes
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ ProteinTracker ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\Users\yuangliu\eclipse-workspace2\ProteinTracker\src\test\resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.0:testCompile (default-testCompile) @ ProteinTracker ---
[INFO] No sources to compile
[INFO] 
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ ProteinTracker ---
[INFO] 
[INFO] --- maven-jar-plugin:2.4:jar (default-jar) @ ProteinTracker ---
[INFO] Building jar: C:\Users\yuangliu\eclipse-workspace2\ProteinTracker\target\ProteinTracker-0.0.1-SNAPSHOT.jar
[INFO] 
[INFO] --- maven-install-plugin:2.4:install (default-install) @ ProteinTracker ---
[INFO] Installing C:\Users\yuangliu\eclipse-workspace2\ProteinTracker\target\ProteinTracker-0.0.1-SNAPSHOT.jar to C:\Users\yuangliu\.m2\repository\ProteinTracker\ProteinTracker\0.0.1-SNAPSHOT\ProteinTracker-0.0.1-SNAPSHOT.jar
[INFO] Installing C:\Users\yuangliu\eclipse-workspace2\ProteinTracker\pom.xml to C:\Users\yuangliu\.m2\repository\ProteinTracker\ProteinTracker\0.0.1-SNAPSHOT\ProteinTracker-0.0.1-SNAPSHOT.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3.572 s
[INFO] Finished at: 2019-07-08T16:42:05+08:00
[INFO] ------------------------------------------------------------------------

3.2 测试项目，run as maven test

先编辑测试项目的pom.xml，添加一行代码

src

  4.0.0
  ProteinTrackerTest
  ProteinTrackerTest
  0.0.1-SNAPSHOT
  
    src
    src
    
      
        maven-compiler-plugin
        3.8.0
        
          1.8
          1.8
        
      
    
  
  
  	
  		ProteinTracker
  		ProteinTracker
  		0.0.1-SNAPSHOT
  	
  	
  		junit
  		junit
  		4.13-beta-3
  	
  

保存之后，右键Junit测试项目，或者pom.xml文件，选择run sa -> maven test

[INFO] Scanning for projects...
[INFO] 
[INFO] ---------------< ProteinTrackerTest:ProteinTrackerTest >----------------
[INFO] Building ProteinTrackerTest 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ProteinTrackerTest ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\Users\yuangliu\eclipse-workspace2\ProteinTrackerTest\src\main\resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ ProteinTrackerTest ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!
[INFO] Compiling 5 source files to C:\Users\yuangliu\eclipse-workspace2\ProteinTrackerTest\target\classes
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ ProteinTrackerTest ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\Users\yuangliu\eclipse-workspace2\ProteinTrackerTest\src\test\resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.0:testCompile (default-testCompile) @ ProteinTrackerTest ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!
[INFO] Compiling 5 source files to C:\Users\yuangliu\eclipse-workspace2\ProteinTrackerTest\target\test-classes
[INFO] 
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ ProteinTrackerTest ---
[INFO] Surefire report directory: C:\Users\yuangliu\eclipse-workspace2\ProteinTrackerTest\target\surefire-reports

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running test.HelloJunitTest
Run Hello Junit
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.1 sec

Results :

Tests run: 1, Failures: 0, Errors: 0, Skipped: 0

[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 6.434 s
[INFO] Finished at: 2019-07-08T16:55:38+08:00
[INFO] ------------------------------------------------------------------------

这样在执行maven test的时候，就会在build之后执行测试用例，这里有一个规则，你的测试类名称必须test结尾。我们这里来测试以下把test.TheoryTests.java改成test.TheoryTest.java

[INFO] Scanning for projects...
[INFO] 
[INFO] ---------------< ProteinTrackerTest:ProteinTrackerTest >----------------
[INFO] Building ProteinTrackerTest 0.0.1-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
[INFO] 
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ ProteinTrackerTest ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\Users\yuangliu\eclipse-workspace2\ProteinTrackerTest\src\main\resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ ProteinTrackerTest ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!
[INFO] Compiling 5 source files to C:\Users\yuangliu\eclipse-workspace2\ProteinTrackerTest\target\classes
[INFO] 
[INFO] --- maven-resources-plugin:2.6:testResources (default-testResources) @ ProteinTrackerTest ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory C:\Users\yuangliu\eclipse-workspace2\ProteinTrackerTest\src\test\resources
[INFO] 
[INFO] --- maven-compiler-plugin:3.8.0:testCompile (default-testCompile) @ ProteinTrackerTest ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding GBK, i.e. build is platform dependent!
[INFO] Compiling 5 source files to C:\Users\yuangliu\eclipse-workspace2\ProteinTrackerTest\target\test-classes
[INFO] 
[INFO] --- maven-surefire-plugin:2.12.4:test (default-test) @ ProteinTrackerTest ---
[INFO] Surefire report directory: C:\Users\yuangliu\eclipse-workspace2\ProteinTrackerTest\target\surefire-reports

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
Running test.HelloJunitTest
Run Hello Junit
Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.108 sec
Running test.TheoryTest
Tests run: 1, Failures: 1, Errors: 0, Skipped: 0, Time elapsed: 0.031 sec <<< FAILURE!
testThory(test.TheoryTest)  Time elapsed: 0.031 sec  <<< FAILURE!
org.junit.experimental.theories.internal.ParameterizedAssertionError: testThory("-4" )
	at org.junit.experimental.theories.Theories$TheoryAnchor.reportParameterizedError(Theories.java:293)
	at org.junit.experimental.theories.Theories$TheoryAnchor$1$1.evaluate(Theories.java:242)
	at org.junit.experimental.theories.Theories$TheoryAnchor.runWithCompleteAssignment(Theories.java:223)
	at org.junit.experimental.theories.Theories$TheoryAnchor.runWithAssignment(Theories.java:209)
	at org.junit.experimental.theories.Theories$TheoryAnchor.runWithIncompleteAssignment(Theories.java:217)
	at org.junit.experimental.theories.Theories$TheoryAnchor.runWithAssignment(Theories.java:207)
	at org.junit.experimental.theories.Theories$TheoryAnchor.evaluate(Theories.java:192)
	at org.junit.runners.BlockJUnit4ClassRunner$1.evaluate(BlockJUnit4ClassRunner.java:100)
	at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:365)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:103)
	at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:63)
	at org.junit.runners.ParentRunner$4.run(ParentRunner.java:330)
	at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:78)
	at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:328)
	at org.junit.runners.ParentRunner.access$100(ParentRunner.java:65)
	at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:292)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:305)
	at org.junit.runners.ParentRunner.run(ParentRunner.java:412)
	at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:252)
	at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:141)
	at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:112)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
	at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
	at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
	at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:115)
	at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:75)
Caused by: java.lang.AssertionError
	at org.junit.Assert.fail(Assert.java:87)
	at org.junit.Assert.assertTrue(Assert.java:42)
	at org.junit.Assert.assertTrue(Assert.java:53)
	at test.TheoryTest.testThory(TheoryTest.java:29)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
	at java.lang.reflect.Method.invoke(Method.java:498)
	at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:59)
	at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
	at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:56)
	at org.junit.experimental.theories.Theories$TheoryAnchor$2.evaluate(Theories.java:279)
	at org.junit.runners.ParentRunner$3.evaluate(ParentRunner.java:305)
	at org.junit.experimental.theories.Theories$TheoryAnchor$1$1.evaluate(Theories.java:237)
	... 28 more


Results :

Failed tests:   testThory(test.TheoryTest): testThory("-4" )

Tests run: 2, Failures: 1, Errors: 0, Skipped: 0

[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.773 s
[INFO] Finished at: 2019-07-08T16:58:42+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-surefire-plugin:2.12.4:test (default-test) on project ProteinTrackerTest: There are test failures.
[ERROR] 
[ERROR] Please refer to C:\Users\yuangliu\eclipse-workspace2\ProteinTrackerTest\target\surefire-reports for the individual test results.
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException