I'm developing a C# application to run JUnit tests automatically. Since it's complicated to move the current location where my C# application is running, i need to execute the JUnit tests without directly go inside their folder.
So, i have this folder tree:
» ProjectFolder
»» ClassesFolder
»» TestsFolder
»»» testX.java
»»» testX.class
I'm already able to compile the files, using:
javac ...\ProjectFolder\ClassesFolder\*.java
javac ...\ProjectFolder\TestsFolder\*.java
But i can't execute the tests. I tried:
java -classpath ...\ProjectFolder org.junit.runner.JUnitCore TestsFolder.testX
And got this error:
Error: Could not find or load main class org.junit.runner.JUnitCore
I even try this way:
java org.junit.runner.JUnitCore ...\ProjectFolder TestsFolder.testX
But, once again, it doesn't work:
JUnit version 4.10
Could not find class: -classpath
Could not find class: ...\ProjectFolder
Could not find class: TestsFolder.testX
Time: 0,003
OK (0 tests)
So, my main doubt, is how i can use the options (like -cp or -classpath) of the java command, when executing JUnit tests using org.junit.runner.JUnitCore.
Thanks in advance.
The problem is that the jUnit-runner is not in the classpath you specify. You need to add the path to junit.jar to the classpath.
Google is nice http://www.jsystemtest.org/?q=node/44
But why not just use something that already exists and can take care of this? Like Maven or Ant?
Related
I have a feature that execute a function from a Java class. So for this reason I use this command to get the class and create a new instance:
When I run this feature with maven (mvn test -Dtest...) everything is okay. The problem is when I run this feature with karate standalone jar, karate can't find the RCNUtils class.
Error:
org.graalvm.polyglot.PolyglotException: TypeError: Access to host class utilities.RCNUtils is not allowed or does not exist.
GraalJS error: https://github.com/oracle/graaljs/blob/master/docs/user/FAQ.md#typeerror-access-to-host-class-commyexamplemyclass-is-not-allowed-or-does-not-exist
I think it's a classpath problem but I have tried with a lot of differents paths and commands to execute the jar, and nothing works.
I don't know if this is a known issue or if there is a karate example using utilities classes and executed with karate.jar
I tested this problem with differents Karate versions. Actually I'm using Karate 1.1.0
Some of the options I have tried with no results:
Use -w / --workdir param to change working directory with no results
Use java -cp instead of java -jar to set classpath following:
Unable to use read('classpath:') when running tests with standalone karate.jar
Use -Dkarate.config.dir param
Note: I don't think it's a security problem because if I try to get "RCNUtils.java" file with "karate.read()" or "read()" in the same feature, it works. I think because I can put the path to the file. The problem is that I can't put the path to java class in "Java.type()" method
Same error here: Executing Karate jar with mock using external library Spring Framework
Thanks in advance.
I would like to run JUnit test cases from the command line.
How can I do this?
For JUnit 5.x it's:
java -jar junit-platform-console-standalone-<version>.jar <Options>
Find a brief summary at https://stackoverflow.com/a/52373592/1431016 and full details at https://junit.org/junit5/docs/current/user-guide/#running-tests-console-launcher
For JUnit 4.X it's really:
java -cp .:/usr/share/java/junit.jar org.junit.runner.JUnitCore [test class name]
But if you are using JUnit 3.X note the class name is different:
java -cp .:/usr/share/java/junit.jar junit.textui.TestRunner [test class name]
You might need to add more JARs or directories with your class files to the classpath and separate that with semicolons (Windows) or colons (UNIX/Linux). It depends on your environment.
Edit: I've added current directory as an example. Depends on your environment and how you build your application (can be bin/ or build/ or even my_application.jar etc). Note Java 6+ does support globs in classpath, you can do:
java -cp lib/*.jar:/usr/share/java/junit.jar ...
Write tests! :-)
Maven way
If you use Maven, you can run the following command to run all your test cases:
mvn clean test
Or you can run a particular test as below
mvn clean test -Dtest=your.package.TestClassName
mvn clean test -Dtest=your.package.TestClassName#particularMethod
If you would like to see the stack trace (if any) in the console instead of report files in the target\surefire-reports folder, set the user property surefire.useFile to false. For example:
mvn clean test -Dtest=your.package.TestClassName -Dsurefire.useFile=false
Gradle way
If you use Gradle, you can run the following command to run all your test cases:
gradle test
Or you can run a particular test as below
gradle test --tests your.package.TestClassName
gradle test --tests your.package.TestClassName.particularMethod
If you would like more information, you can consider options such as --stacktrace, or --info, or --debug.
For example, when you run Gradle with the info logging level --info, it will show you the result of each test while they are running. If there is any exception, it will show you the stack trace, pointing out what the problem is.
gradle test --info
If you would like to see the overall test results, you can open the report in the browser, for example (Open it using Google Chrome in Ubuntu):
google-chrome build/reports/tests/index.html
Ant way
Once you set up your Ant build file build.xml, you can run your JUnit test cases from the command line as below:
ant -f build.xml <Your JUnit test target name>
You can follow the link below to read more about how to configure JUnit tests in the Ant build file:
https://ant.apache.org/manual/Tasks/junit.html
Normal way
If you do not use Maven, or Gradle or Ant, you can follow the following way:
First of all, you need to compile your test cases. For example (in Linux):
javac -d /absolute/path/for/compiled/classes -cp /absolute/path/to/junit-4.12.jar /absolute/path/to/TestClassName.java
Then run your test cases. For example:
java -cp /absolute/path/for/compiled/classes:/absolute/path/to/junit-4.12.jar:/absolute/path/to/hamcrest-core-1.3.jar org.junit.runner.JUnitCore your.package.TestClassName
The answer that #lzap gave is a good solution. However, I would like to add that you should add . to the class path, so that your current directory is not left out, resulting in your own classes to be left out. This has happened to me on some platforms. So an updated version for JUnit 4.x would be:
java -cp .:/usr/share/java/junit.jar org.junit.runner.JUnitCore [test class name]
Ensure that JUnit.jar is in your classpath, then invoke the command line runner from the console
java org.junit.runner.JUnitCore [test class name]
Reference: junit FAQ
With JUnit 4.12 the following didn't work for me:
java -cp .:/usr/share/java/junit.jar org.junit.runner.JUnitCore [test class name]
Apparently, from JUnit 4.11 onwards you should also include hamcrest-core.jar in your classpath:
java -cp .:/usr/share/java/junit.jar:/usr/share/java/hamcrest-core.jar org.junit.runner.JUnitCore [test class name]
In windows it is
java -cp .;/path/junit.jar org.junit.runner.JUnitCore TestClass [test class name without .class extension]
for example:
c:\>java -cp .;f:/libraries/junit-4.8.2 org.junit.runner.JUnitCore TestSample1 TestSample2 ... and so on, if one has more than one test classes.
-cp stands for class path and the dot (.) represents the existing classpath while semi colon (;) appends the additional given jar to the classpath , as in above example junit-4.8.2 is now available in classpath to execute JUnitCore class that here we have used to execute our test classes.
Above command line statement helps you to execute junit (version 4+) tests from command prompt(i-e MSDos).
Note: JUnitCore is a facade to execute junit tests, this facade is included in 4+ versions of junit.
If your project is Maven-based you can run all test-methods from test-class CustomTest which belongs to module 'my-module' using next command:
mvn clean test -pl :my-module -Dtest=CustomTest
Or run only 1 test-method myMethod from test-class CustomTest using next command:
mvn clean test -pl :my-module -Dtest=CustomTest#myMethod
For this ability you need Maven Surefire Plugin v.2.7.3+ and Junit 4.
More details is here: http://maven.apache.org/surefire/maven-surefire-plugin/examples/single-test.html
Actually you can also make the Junit test a runnable Jar and call the runnable jar as
java -jar
Personally I would use the Maven surefire JUnit runner to do that.
Alternatively you can use the following methods in JunitCore class http://junit.sourceforge.net/javadoc/org/junit/runner/JUnitCore.html
run (with Request , Class classes and Runner) or runClasses from your java file.
I would like to run JUnit test cases from the command line.
How can I do this?
For JUnit 5.x it's:
java -jar junit-platform-console-standalone-<version>.jar <Options>
Find a brief summary at https://stackoverflow.com/a/52373592/1431016 and full details at https://junit.org/junit5/docs/current/user-guide/#running-tests-console-launcher
For JUnit 4.X it's really:
java -cp .:/usr/share/java/junit.jar org.junit.runner.JUnitCore [test class name]
But if you are using JUnit 3.X note the class name is different:
java -cp .:/usr/share/java/junit.jar junit.textui.TestRunner [test class name]
You might need to add more JARs or directories with your class files to the classpath and separate that with semicolons (Windows) or colons (UNIX/Linux). It depends on your environment.
Edit: I've added current directory as an example. Depends on your environment and how you build your application (can be bin/ or build/ or even my_application.jar etc). Note Java 6+ does support globs in classpath, you can do:
java -cp lib/*.jar:/usr/share/java/junit.jar ...
Write tests! :-)
Maven way
If you use Maven, you can run the following command to run all your test cases:
mvn clean test
Or you can run a particular test as below
mvn clean test -Dtest=your.package.TestClassName
mvn clean test -Dtest=your.package.TestClassName#particularMethod
If you would like to see the stack trace (if any) in the console instead of report files in the target\surefire-reports folder, set the user property surefire.useFile to false. For example:
mvn clean test -Dtest=your.package.TestClassName -Dsurefire.useFile=false
Gradle way
If you use Gradle, you can run the following command to run all your test cases:
gradle test
Or you can run a particular test as below
gradle test --tests your.package.TestClassName
gradle test --tests your.package.TestClassName.particularMethod
If you would like more information, you can consider options such as --stacktrace, or --info, or --debug.
For example, when you run Gradle with the info logging level --info, it will show you the result of each test while they are running. If there is any exception, it will show you the stack trace, pointing out what the problem is.
gradle test --info
If you would like to see the overall test results, you can open the report in the browser, for example (Open it using Google Chrome in Ubuntu):
google-chrome build/reports/tests/index.html
Ant way
Once you set up your Ant build file build.xml, you can run your JUnit test cases from the command line as below:
ant -f build.xml <Your JUnit test target name>
You can follow the link below to read more about how to configure JUnit tests in the Ant build file:
https://ant.apache.org/manual/Tasks/junit.html
Normal way
If you do not use Maven, or Gradle or Ant, you can follow the following way:
First of all, you need to compile your test cases. For example (in Linux):
javac -d /absolute/path/for/compiled/classes -cp /absolute/path/to/junit-4.12.jar /absolute/path/to/TestClassName.java
Then run your test cases. For example:
java -cp /absolute/path/for/compiled/classes:/absolute/path/to/junit-4.12.jar:/absolute/path/to/hamcrest-core-1.3.jar org.junit.runner.JUnitCore your.package.TestClassName
The answer that #lzap gave is a good solution. However, I would like to add that you should add . to the class path, so that your current directory is not left out, resulting in your own classes to be left out. This has happened to me on some platforms. So an updated version for JUnit 4.x would be:
java -cp .:/usr/share/java/junit.jar org.junit.runner.JUnitCore [test class name]
Ensure that JUnit.jar is in your classpath, then invoke the command line runner from the console
java org.junit.runner.JUnitCore [test class name]
Reference: junit FAQ
With JUnit 4.12 the following didn't work for me:
java -cp .:/usr/share/java/junit.jar org.junit.runner.JUnitCore [test class name]
Apparently, from JUnit 4.11 onwards you should also include hamcrest-core.jar in your classpath:
java -cp .:/usr/share/java/junit.jar:/usr/share/java/hamcrest-core.jar org.junit.runner.JUnitCore [test class name]
In windows it is
java -cp .;/path/junit.jar org.junit.runner.JUnitCore TestClass [test class name without .class extension]
for example:
c:\>java -cp .;f:/libraries/junit-4.8.2 org.junit.runner.JUnitCore TestSample1 TestSample2 ... and so on, if one has more than one test classes.
-cp stands for class path and the dot (.) represents the existing classpath while semi colon (;) appends the additional given jar to the classpath , as in above example junit-4.8.2 is now available in classpath to execute JUnitCore class that here we have used to execute our test classes.
Above command line statement helps you to execute junit (version 4+) tests from command prompt(i-e MSDos).
Note: JUnitCore is a facade to execute junit tests, this facade is included in 4+ versions of junit.
If your project is Maven-based you can run all test-methods from test-class CustomTest which belongs to module 'my-module' using next command:
mvn clean test -pl :my-module -Dtest=CustomTest
Or run only 1 test-method myMethod from test-class CustomTest using next command:
mvn clean test -pl :my-module -Dtest=CustomTest#myMethod
For this ability you need Maven Surefire Plugin v.2.7.3+ and Junit 4.
More details is here: http://maven.apache.org/surefire/maven-surefire-plugin/examples/single-test.html
Actually you can also make the Junit test a runnable Jar and call the runnable jar as
java -jar
Personally I would use the Maven surefire JUnit runner to do that.
Alternatively you can use the following methods in JunitCore class http://junit.sourceforge.net/javadoc/org/junit/runner/JUnitCore.html
run (with Request , Class classes and Runner) or runClasses from your java file.
I would like to run JUnit test cases from the command line.
How can I do this?
For JUnit 5.x it's:
java -jar junit-platform-console-standalone-<version>.jar <Options>
Find a brief summary at https://stackoverflow.com/a/52373592/1431016 and full details at https://junit.org/junit5/docs/current/user-guide/#running-tests-console-launcher
For JUnit 4.X it's really:
java -cp .:/usr/share/java/junit.jar org.junit.runner.JUnitCore [test class name]
But if you are using JUnit 3.X note the class name is different:
java -cp .:/usr/share/java/junit.jar junit.textui.TestRunner [test class name]
You might need to add more JARs or directories with your class files to the classpath and separate that with semicolons (Windows) or colons (UNIX/Linux). It depends on your environment.
Edit: I've added current directory as an example. Depends on your environment and how you build your application (can be bin/ or build/ or even my_application.jar etc). Note Java 6+ does support globs in classpath, you can do:
java -cp lib/*.jar:/usr/share/java/junit.jar ...
Write tests! :-)
Maven way
If you use Maven, you can run the following command to run all your test cases:
mvn clean test
Or you can run a particular test as below
mvn clean test -Dtest=your.package.TestClassName
mvn clean test -Dtest=your.package.TestClassName#particularMethod
If you would like to see the stack trace (if any) in the console instead of report files in the target\surefire-reports folder, set the user property surefire.useFile to false. For example:
mvn clean test -Dtest=your.package.TestClassName -Dsurefire.useFile=false
Gradle way
If you use Gradle, you can run the following command to run all your test cases:
gradle test
Or you can run a particular test as below
gradle test --tests your.package.TestClassName
gradle test --tests your.package.TestClassName.particularMethod
If you would like more information, you can consider options such as --stacktrace, or --info, or --debug.
For example, when you run Gradle with the info logging level --info, it will show you the result of each test while they are running. If there is any exception, it will show you the stack trace, pointing out what the problem is.
gradle test --info
If you would like to see the overall test results, you can open the report in the browser, for example (Open it using Google Chrome in Ubuntu):
google-chrome build/reports/tests/index.html
Ant way
Once you set up your Ant build file build.xml, you can run your JUnit test cases from the command line as below:
ant -f build.xml <Your JUnit test target name>
You can follow the link below to read more about how to configure JUnit tests in the Ant build file:
https://ant.apache.org/manual/Tasks/junit.html
Normal way
If you do not use Maven, or Gradle or Ant, you can follow the following way:
First of all, you need to compile your test cases. For example (in Linux):
javac -d /absolute/path/for/compiled/classes -cp /absolute/path/to/junit-4.12.jar /absolute/path/to/TestClassName.java
Then run your test cases. For example:
java -cp /absolute/path/for/compiled/classes:/absolute/path/to/junit-4.12.jar:/absolute/path/to/hamcrest-core-1.3.jar org.junit.runner.JUnitCore your.package.TestClassName
The answer that #lzap gave is a good solution. However, I would like to add that you should add . to the class path, so that your current directory is not left out, resulting in your own classes to be left out. This has happened to me on some platforms. So an updated version for JUnit 4.x would be:
java -cp .:/usr/share/java/junit.jar org.junit.runner.JUnitCore [test class name]
Ensure that JUnit.jar is in your classpath, then invoke the command line runner from the console
java org.junit.runner.JUnitCore [test class name]
Reference: junit FAQ
With JUnit 4.12 the following didn't work for me:
java -cp .:/usr/share/java/junit.jar org.junit.runner.JUnitCore [test class name]
Apparently, from JUnit 4.11 onwards you should also include hamcrest-core.jar in your classpath:
java -cp .:/usr/share/java/junit.jar:/usr/share/java/hamcrest-core.jar org.junit.runner.JUnitCore [test class name]
In windows it is
java -cp .;/path/junit.jar org.junit.runner.JUnitCore TestClass [test class name without .class extension]
for example:
c:\>java -cp .;f:/libraries/junit-4.8.2 org.junit.runner.JUnitCore TestSample1 TestSample2 ... and so on, if one has more than one test classes.
-cp stands for class path and the dot (.) represents the existing classpath while semi colon (;) appends the additional given jar to the classpath , as in above example junit-4.8.2 is now available in classpath to execute JUnitCore class that here we have used to execute our test classes.
Above command line statement helps you to execute junit (version 4+) tests from command prompt(i-e MSDos).
Note: JUnitCore is a facade to execute junit tests, this facade is included in 4+ versions of junit.
If your project is Maven-based you can run all test-methods from test-class CustomTest which belongs to module 'my-module' using next command:
mvn clean test -pl :my-module -Dtest=CustomTest
Or run only 1 test-method myMethod from test-class CustomTest using next command:
mvn clean test -pl :my-module -Dtest=CustomTest#myMethod
For this ability you need Maven Surefire Plugin v.2.7.3+ and Junit 4.
More details is here: http://maven.apache.org/surefire/maven-surefire-plugin/examples/single-test.html
Actually you can also make the Junit test a runnable Jar and call the runnable jar as
java -jar
Personally I would use the Maven surefire JUnit runner to do that.
Alternatively you can use the following methods in JunitCore class http://junit.sourceforge.net/javadoc/org/junit/runner/JUnitCore.html
run (with Request , Class classes and Runner) or runClasses from your java file.
I am trying to run a JUnit 4 test from commandline. This is my current command:
java -cp C:\Users\some\.m2\repository\junit\junit\4.11\junit-4.11.jar junit.textui.TestRunner C:\Some\Path\target\test-classes\com\wicket\range\ui\MyTest.class
This gives a class not found error.
I have also tried the following:
C:\Some\Path\target\test-classes>java -cp C:\Users\some\.m2\repository\junit\junit\4.11\junit-4.11.jar junit.textui.TestRunner com.wicket.range.MyTest.class
This also gives a class not found error; what could be the issue here?
I assume your test class is under C:\Some\Path\target\test-classes (in appropriate subdirectory). Your command has only junit in it. It also need class path to the test and other dependencies.
Try
java -cp C:\Some\Path\target\test-classes;C:\Users\some\.m2\repository\junit\junit\4.11\junit-4.11.jar junit.textui.TestRunner com.wicket.range.MyTest.class
Looks like you are using Maven (saw the ".m2" in your classpath). How about this..
cd <location of pom.xml>
mvn -Dtest=MyTest test
Granted it may be a while until before it runs your test and it's not going to use JUnit's text ui runner, but it should run your test without much fuss about ClassNotFoundException. Examine files in target\surefire-reports for test results afterwards. Guess it depends on exactly what your goal is.
Otherwise, Jayan's answer looks about right to me. For his to work, I think you want to first
cd C:\Some\Path\target\test-classes