8-8: Import Updated Helper Functions

The import statement now includes expectNoErrorsOrWarnings, expectWithPolling, and renderPage from './utils'. This enhances the test suite by utilizing these helper functions for better readability and maintainability.

17-17: Update Fixture Path to HMR Fixture

The fixture path has been updated to ./fixtures-temp/hmr, aligning the tests with the new HMR functionality. This change ensures that the tests target the correct fixture for hot module replacement scenarios.

29-30: Read index.vue from Updated Fixture Path

The code now reads index.vue from the updated fixturePath. This ensures that any modifications to the page during tests are accurately applied to the correct file.

35-36: Verify Initial Page Load Content

The expectations check that the page title is 'HMR fixture' and the initial count is '1'. This confirms that the page loads with the correct initial state before any HMR updates.

39-40: Simulate User Interaction

Clicking the button and expecting the count to increment to '2' verifies that user interactions are working correctly and that the application state updates accordingly.

49-49: Ensure HMR Updates Page Title

Using expectWithPolling to check for the updated page title 'HMR fixture HMR' confirms that the HMR is correctly updating the page without a full reload.

52-53: Verify Updated Heading Text

The test correctly verifies that the heading text has been updated to 'Home page - but not as you knew it', ensuring that content changes are reflected via HMR.

56-57: Check Updated Style Application

Verifying the color of the <h1> element ensures that style changes are hot reloaded. The expected color "rgb(255, 0, 0)" confirms that the scoped style is applied.

60-60: Consolidate Error Checking with expectNoErrorsOrWarnings

The use of expectNoErrorsOrWarnings(consoleLogs) streamlines error and warning checks, improving test clarity and reducing repetitive code.

76-82: Ensure Route Rules HMR Functionality

The test modifies the content of route-rules.vue and checks if the custom header 'x-extend' is updated accordingly. This verifies that route rules are hot reloaded as expected.

86-108: Test HMR for Islands Components

The HMR test for island components effectively changes the hmrId and verifies that the updates are reflected in the rendered output. This ensures that isolated components support HMR.

145-165: Test HMR for Dynamic Routes

The test adds a new route dynamically and verifies navigation to it without a full page reload. This confirms that HMR updates the router configuration appropriately.

20-20: Import handleHotUpdate for HMR Support

The import statement for handleHotUpdate from #build/routes introduces HMR capabilities to the router. This enhancement allows the router to update its routes dynamically during development.

90-91: Invoke handleHotUpdate After Router Initialization

Calling handleHotUpdate(router) ensures that the router instance is correctly passed to the HMR handler. This setup is necessary for the router to respond to route changes in real-time.

458-459: Pass isPage and routesPath to PageMetaPlugin

Providing isPage and routesPath to the PageMetaPlugin enhances its ability to accurately process page metadata and supports the new HMR functionality.

504-510: Include HMR Code in Routes Template

The addition of ROUTES_HMR_CODE to the routes template incorporates the necessary HMR logic directly into the generated routes file. This integration ensures that route changes are hot reloaded without a full page refresh.

615-637: Implement HMR Logic for Routes

The ROUTES_HMR_CODE constant defines the HMR behavior for routes, including accepting hot updates, clearing existing routes, and adding new ones. The handleHotUpdate function ensures the router instance is available for HMR.

1-5: Define Page Meta for Testing HMR

The use of definePageMeta with some: 'stuff' sets up the component for testing HMR of page metadata. This is a valid addition and aligns with the objectives of enhancing HMR capabilities.

9-9: Display Route Meta Information

Rendering {{ $route.meta }} within the data-testid="meta" element allows for testing whether HMR updates to page metadata are reflected in the application. This implementation is appropriate for the test case.

1-10: Verify the compatibility date and experimental features.

A few points to consider:

1. The compatibility date is set to a future date ('2024-06-28'). This might cause issues if the features aren't ready by then.
2. The experimental features are crucial for HMR testing, but enabling all of them might mask specific HMR-related issues.

Let's check the compatibility date usage across the codebase:

#!/bin/bash
# Search for other compatibility date references
rg --type ts "compatibilityDate.*2024-06-28"

# Check if there are any related experimental features in the codebase
rg --type ts "experimental.*inlineRouteRules"

#!/bin/bash
# Check for compatibility date documentation or configuration
rg -A 5 "compatibilityDate" packages/

# Check for inline route rules documentation or implementation
rg -A 10 "inlineRouteRules" packages/nuxt/src/pages/module.ts

# Look for experimental features documentation
fd "README.md" packages/ -x rg -l "experimental"

60-64: LGTM: Enhanced error checking and cleanup in expectNoClientErrors

The changes improve test reliability by:

• Adding explicit array emptiness check for page errors
• Reusing the new expectNoErrorsOrWarnings function
• Ensuring proper cleanup by closing the page after checks

66-72: LGTM: Well-structured error checking utility

The new expectNoErrorsOrWarnings function provides a clean, reusable way to verify both error and warning logs. The implementation correctly filters by log type and uses strict equality checks.

42-43: LGTM: Clean middleware setup

The middleware registration is clear and correctly uses the Vite node app with invalidation tracking.

44-51: Verify line number continuity in template invalidation logic

While the template invalidation logic is correct, there appears to be a gap in line numbering (missing line 48). This could indicate:

1. A potential missing line in the implementation
2. A formatting issue

16-17: LGTM: Enhanced plugin configuration options

The new options improve flexibility:

• isPage: Allows custom page detection logic
• routesPath: Enables custom routes path configuration

27-31: LGTM: Improved dev mode support

The new CODE_DEV_EMPTY constant provides better defaults for development mode by initializing with an empty object instead of null.

164-173: LGTM: Enhanced HMR handling

The changes improve HMR support by:

1. Using post-order handling for better compatibility
2. Properly invalidating both macro and routes modules
3. Correctly handling page-specific updates

157-157: LGTM: Consistent fallback behavior

The fallback to dev-mode empty content maintains consistency with the rest of the implementation.

99-103: Verify error handling for empty files

The error handling for empty files includes logging, but we should verify that the error message is properly displayed in the console and doesn't break the development experience.

#!/bin/bash
# Check for similar error handling patterns in the codebase
rg -A 2 "logger.error.*not.*valid.*page" packages/

#!/bin/bash
# Check the implementation of logger and its error handling
ast-grep --pattern 'const logger = $_'

# Check for any test cases related to empty page handling
rg -l "empty.*page|page.*empty" packages/ -g "*.test.*"

# Look for the constants used in error handling
rg "CODE_DEV_EMPTY|CODE_EMPTY|CODE_HMR" packages/

#!/bin/bash
# Get the full content of page-meta.ts to understand the error handling flow
cat packages/nuxt/src/pages/plugins/page-meta.ts

# Check if there are any related error handling tests
rg -A 5 "logger.*error" packages/kit/src/logger.test.ts

#!/bin/bash
# Check the logger implementation
cat packages/kit/src/logger.ts

# Check for any test files that might cover empty page scenarios
rg -l "empty.*page|page.*empty" packages/ -g "*.spec.*"
rg -l "empty.*page|page.*empty" packages/ -g "*.test.*"

# Check if there are any related issues or discussions
rg -i "empty page|invalid page" packages/ -g "*.md"