Editor editor = new Editor(document);
            Element root = editor.root();
            String version = root.path("build", "plugins", "plugin", "version")
                    .map(Element::textContentTrimmed)
                    .orElse(null);

            // The exact version depends on the plugin upgrades configuration
            assertNotNull(version, "Plugin should have a version");
        }

        if (parentDir == null) {
            return false;
        }

        // Get declared subprojects
        Set<String> declaredSubprojects = subprojectElements.stream()
                .map(Element::textContentTrimmed)
                .filter(name -> !name.isEmpty())
                .collect(Collectors.toSet());

        // Get list of actual direct child directories with pom.xml

            Element root = document.root();
            Element modelVersionElement = root.child("modelVersion").orElse(null);
            assertEquals(targetVersion, modelVersionElement.textContentTrimmed());
        }

        @ParameterizedTest(name = "to target version {0}")
        @ValueSource(strings = {"4.1.0", "4.2.0"})
        @DisplayName("should add model version when missing")

        String currentVersion;
        boolean isProperty = false;
        String propertyName = null;

        if (versionElement != null) {
            currentVersion = versionElement.textContentTrimmed();
            // Check if version is a property reference
            if (currentVersion.startsWith("${") && currentVersion.endsWith("}")) {
                isProperty = true;

                assertNotNull(modelVersionElement, "Model version should exist: " + description);
                assertEquals(
                        expectedModelVersion,
                        modelVersionElement.textContentTrimmed(),
                        "Model version should be correct: " + description);
            }
        }

        private static Stream<Arguments> provideUpgradeScenarios() {
            return Stream.of(