This PR adds support for loading files and mappings from test resources directory.

By default, It will look into src/test/resources/mappings and src/test/resources/__files behaving very similarly to when WireMockServer is started programmatically. This path can be configured via withRootDir(File file).

This addition simplifies the testing setup by providing an alternative to having to map all stub and file paths individually using with...() calls.

Before:

@Testcontainers
public class WireMockLoadsFileMappingsByDefaultTest {

    @Container
    private WireMockContainer server = new WireMockContainer("wiremock/wiremock:latest")
            .withFile(new File("src/test/resources/static-file-1.txt"))
            .withFile(new File("src/test/resources/static-file-2.txt"))
            // other files
            .withMappingFromResource("src/test/resources/mappings/simple-mapping-1.json")
            .withMappingFromResource("src/test/resources/mappings/simple-mapping-2.json")
            // other mappings
            ;
[...]

After:

Make sure all stubs and files are stored in the proper sub-directories and all the manual inclusions may be removed:

    @Container
    private WireMockContainer server = new WireMockContainer("wiremock/wiremock:latest");

Alternatively, one can choose a different path to load mappings/files from:

    @Container
    private WireMockContainer server = new WireMockContainer("wiremock/wiremock:latest")
            .withRootDir("src/integration-test/resources")

References

• Closes Support for loading mapping files from 'mappings' folder by default  #134

Submitter checklist

• Recommended: Join WireMock Slack to get any help in #help-contributing or a project-specific channel like #wiremock-java
• The PR request is well described and justified, including the body and the references
• The PR title represents the desired changelog entry
• The repository's code style is followed (see the contributing guide)
• Test coverage that demonstrates that the change works as expected
• For new features, there's necessary documentation in this pull request or in a subsequent PR to wiremock.org