*/
    public static UpgradeResult success(Set<Path> processedPoms, Set<Path> modifiedPoms) {
        return new UpgradeResult(processedPoms, modifiedPoms, Collections.emptySet());
    }

    /**
     * Creates a failure result with the specified processed POMs and error POMs.
     */
    public static UpgradeResult failure(Set<Path> processedPoms, Set<Path> errorPoms) {

                when(strategy.isApplicable(context)).thenReturn(true);
                when(strategy.apply(Mockito.eq(context), Mockito.any())).thenReturn(UpgradeResult.empty());
            }

            UpgradeResult result = orchestrator.executeStrategies(context, pomMap);

            assertTrue(result.success(), "Orchestrator should succeed when all strategies succeed");

    class ResultMergingTests {

        @Test
        @DisplayName("should merge empty results")
        void shouldMergeEmptyResults() {
            UpgradeResult result1 = UpgradeResult.empty();
            UpgradeResult result2 = UpgradeResult.empty();

            UpgradeResult merged = result1.merge(result2);

            assertTrue(merged.success(), "Merged empty results should be successful");

     * Subclasses implement the actual upgrade logic in doApply().
     */
    @Override
    public final UpgradeResult apply(UpgradeContext context, Map<Path, Document> pomMap) {
        context.info(getDescription());
        context.indent();

        try {
            UpgradeResult result = doApply(context, pomMap);

            // Log summary
            logSummary(context, result);

            Document document = Document.of(pomXml);
            Map<Path, Document> pomMap = Map.of(Paths.get("pom.xml"), document);

            UpgradeContext context = createMockContext();
            UpgradeResult result = strategy.doApply(context, pomMap);

            assertTrue(result.success(), "Plugin upgrade should succeed");
            // Note: POM may or may not be modified depending on whether upgrades are needed

            // Mock successful strategy execution
            when(mockOrchestrator.executeStrategies(Mockito.any(), Mockito.any()))
                    .thenReturn(UpgradeResult.empty());

            // Execute with target model 4.0.0 (should create .mvn directory)
            upgradeGoal.testExecuteWithTargetModel(context, "4.0.0");

            Path mvnDir = projectDir.resolve(".mvn");

     * @return the overall result of all strategy executions
     */
    public UpgradeResult executeStrategies(UpgradeContext context, Map<Path, Document> pomMap) {
        context.println();
        context.info("Maven Upgrade Tool");
        logUpgradeOptions(context);

        UpgradeResult overallResult = UpgradeResult.empty();

        // Filter and execute applicable strategies

            pomMap.put(Paths.get("pom.xml"), document);

            UpgradeContext context = createMockContext(TestUtils.createOptionsWithModelVersion(targetModelVersion));

            UpgradeResult result = strategy.doApply(context, pomMap);

            assertTrue(result.success(), "Model upgrade should succeed: " + description);
            assertEquals(expectedModifiedCount, result.modifiedCount(), description);

            Document document = Document.of(pomXml);
            Map<Path, Document> pomMap = Map.of(Paths.get("pom.xml"), document);

            UpgradeContext context = createMockContext();
            UpgradeResult result = strategy.doApply(context, pomMap);

            assertTrue(result.success(), "Compatibility fix should succeed");
            assertTrue(result.modifiedCount() > 0, "Should have removed duplicate dependency");

     *
     * @param context the upgrade context
     * @param pomMap map of all POM files in the project (domtrip Documents)
     * @return the result of the upgrade operation
     */
    UpgradeResult apply(UpgradeContext context, Map<Path, Document> pomMap);

    /**
     * Checks if this strategy is applicable given the current options.
     *
     * @param context the upgrade context