.build();

                    if (pomFile != null) {
                        project.setRootDirectory(rootLocator.findRoot(pomFile.getParent()));
                    }

                    ModelBuilderResult result;
                    try {
                        result = modelBuilderSession.build(request);

            throw new IllegalStateException(RootLocator.UNABLE_TO_FIND_ROOT_PROJECT_MESSAGE);
        }
        return rootDirectory;
    }

    @Override
    public MavenExecutionRequest setRootDirectory(Path rootDirectory) {
        this.rootDirectory = rootDirectory;
        return this;
    }

    @Override
    public Path getTopDirectory() {
        return topDirectory;
    }

        if (context.invokerRequest.rootDirectory().isPresent()) {
            request.setMultiModuleProjectDirectory(
                    context.invokerRequest.rootDirectory().get().toFile());
            request.setRootDirectory(context.invokerRequest.rootDirectory().get());
        }

        request.addPluginGroup("org.apache.maven.plugins");
        request.addPluginGroup("org.codehaus.mojo");
    }

    /**

        request.setUserProperties(cliRequest.userProperties);
        request.setMultiModuleProjectDirectory(cliRequest.multiModuleProjectDirectory);
        request.setRootDirectory(cliRequest.rootDirectory);
        request.setTopDirectory(cliRequest.topDirectory);
        request.setPom(determinePom(commandLine, workingDirectory, baseDirectory));

        if (rootDirectory == null) {
            throw new IllegalStateException(RootLocator.UNABLE_TO_FIND_ROOT_PROJECT_MESSAGE);
        }
        return rootDirectory;
    }

    public void setRootDirectory(Path rootDirectory) {
        this.rootDirectory = rootDirectory;
    }

                && Files.isRegularFile(root.resolve("../pom.xml"))) {
            root = root.getParent();
        }
        mSession.getMavenSession().getRequest().setRootDirectory(root);

        return new PomTestWrapper(pomFile, projectBuilder.build(pomFile, config).getProject());
    }

    protected void assertModelEquals(PomTestWrapper pom, Object expected, String expression) {