How to get a test resource file?
JavaTestingResourcesMavenSurefireJava Problem Overview
In a unit test I need to import a csv file. This is located in the resources folder, i.e. src/test/resources
Java Solutions
Solution 1 - Java
Probably just useful if you have the file available, for example when doing unit tests - this will not load it out of a jar AFAIK.
URL url = Thread.currentThread().getContextClassLoader().getResource("mypackage/YourFile.csv");
File file = new File(url.getPath());
// where the file is in the classpath eg. <project>/src/test/resources/mypackage/YourFile.csv
Solution 2 - Java
You can access test resources using the current thread's classloader:
InputStream stream = Thread.currentThread().getContextClassLoader()
.getResourceAsStream("YOURFILE.CSV");
Solution 3 - Java
with guava
import com.google.common.io.Resources;
URL url = Resources.getResource("YourFile.csv");
Solution 4 - Java
// assuming a file src/test/resources/some-file.csv exists:
import java.io.InputStream;
// ...
InputStream is = getClass().getClassLoader().getResourceAsStream("some-file.csv");
Solution 5 - Java
import org.apache.commons.io.FileUtils;
...
final File dic = FileUtils.getFile("src","test", "resources", "csvFile");
since Apache Commons IO 2.1.
Solution 6 - Java
This solution need not lib's. First create a util class to access the resource files.
public class TestUtil(Class classObj, String resourceName) throws IOException{
URL resourceUrl = classObj.getResource(FileSystems.getDefault().getSeparator()+resourceName);
assertNotNull(resourceUrl);
return new File(resourceUrl.getFile());
}
Now you just need to call the method with the class of your unitTest and the name of your file in the ressource folder.
File cvsTestFile = TestUtil.GetDocFromResource(getClass(), "MyTestFile.cvs");