junit test: configuration file with path variable to the resources

I have an AttributesLoader class which picks a configuration file, retrieves variables and sets it's values to objects.

Example:

   if (validatePropertyValue(configuration.getString(PROPERTY_RECORD_LIMIT))) {
                extractionAttributesBuilder.setRecordLimit(configuration.getInt(PROPERTY_RECORD_LIMIT));
            }

Code works fine but I struggle to write test for some of the attributes. Because the code picks up a file, I have a cfg file in my src/test/resources. One of the properties is a path to a directory..

I tried doing it this way:

path=new File(AttributesLoaderTest.class.getResource("/extractPath").getPath()));

but it doesn't work because it looks for a path: new File(AttributesLoaderTest.class.getResource("/extractPath").getPath())); which is useless..

My question is:

How can I provide a path in a file to my src/test/resources directory without it being hardoced?

path=/extractPath