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Add comprehensive Cypress E2E tests for Claude Explain feature (#7751)
- Add comprehensive test suite covering all Claude Explain functionality: - Basic pane opening and consent flow - no-ai directive detection - API interactions and error handling - Options/customization features - Caching behavior and persistence - Compilation state handling - State persistence across page loads - Fix caching bug in explain-view.ts: - Cache was incorrectly implemented as instance variable, losing cached explanations when panes were closed/reopened - Made cache static to persist across all pane instances (matches consent persistence pattern) - Fixes failing "Caching and reload" Cypress test - Aligns implementation with documented behavior: "shared across all explain views in the session" - Add test utilities and helpers: - Monaco editor content manipulation using clipboard events - Claude Explain specific helpers moved to test file - General utilities remain in utils.ts - Performance optimizations: - Clear Cypress intercepts in afterEach to prevent O(n²) degradation - Use :visible selectors to avoid GoldenLayout template elements - Proper mock setup timing to prevent race conditions - Add comprehensive README with lessons learned and best practices All tests use fake test data (test_first, focus_a, etc.) to clearly distinguish from production values and prevent accidental API calls.
This commit is contained in:
Matt Godbolt
165
cypress/README.md
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165
cypress/README.md
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# Cypress E2E Tests
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This directory contains end-to-end tests for Compiler Explorer using Cypress.
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## Running Tests
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### Starting Compiler Explorer for Testing
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First, start a local Compiler Explorer instance with a clean configuration:
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```bash
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npm run dev -- --language c++ --no-local
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```
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The `--no-local` flag is important as it ensures your setup is clean of any local properties.
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### Running Cypress Tests
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In another terminal:
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```bash
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# Run all Cypress tests
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npm run cypress
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# Run specific test file
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npm run cypress -- run --spec "cypress/e2e/claude-explain.cy.ts"
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# Open Cypress interactive UI (recommended for development)
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npm run cypress:open
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```
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When using the interactive UI, choose "E2E Testing" and select your browser.
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## Important Testing Patterns & Lessons Learned
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### 1. **Always Use `:visible` Selectors**
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GoldenLayout creates template elements that exist in the DOM but aren't visible. Always use `:visible` to avoid selecting template elements:
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```javascript
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// ❌ Bad - might select template elements
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cy.get('.explain-content').should('contain', 'text');
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// ✅ Good - only selects visible elements
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cy.get('.explain-content:visible').should('contain', 'text');
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```
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### 2. **Performance: Clear Intercepts in `afterEach`**
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Cypress intercepts accumulate across tests causing O(n²) performance degradation. Always clear them:
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```javascript
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import {clearAllIntercepts} from '../support/utils';
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afterEach(() => {
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// Use the utility function to clear intercepts
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clearAllIntercepts();
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// Or manually clear them:
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cy.state('routes', []);
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cy.state('aliases', {});
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// ... other cleanup
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});
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```
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### 3. **Mock Setup Timing is Critical**
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Always set up API mocks BEFORE any action that might trigger requests:
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```javascript
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// ❌ Bad - pane constructor might make requests before mocks are ready
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openClaudeExplainPane();
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mockClaudeExplainAPI();
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// ✅ Good - mocks ready before pane opens
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mockClaudeExplainAPI();
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openClaudeExplainPane();
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```
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### 4. **Wait for Async DOM Updates**
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Don't just wait for API calls - wait for the actual DOM changes:
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```javascript
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// ❌ Bad - API completes but DOM might not be updated yet
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cy.wait('@getOptions');
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cy.get('.dropdown').select('value');
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// ✅ Good - wait for specific DOM state
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cy.wait('@getOptions');
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cy.get('.dropdown option[value="loading"]').should('not.exist');
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cy.get('.dropdown').select('value');
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```
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### 5. **Use Test Data, Not Production Values**
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Always use clearly fake test data to:
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- Prevent confusion with real values
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- Make it obvious when viewing test output
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- Ensure tests never accidentally hit production APIs
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```javascript
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// Use values like: test_first, test_second, focus_a, focus_b
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// Not: beginner, expert, assembly, optimization
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```
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### 6. **Helper Functions for Common Patterns**
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Extract common test patterns to helpers, but keep them in the test file if they're specific to one feature:
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```javascript
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// In test file for feature-specific helpers
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function openClaudeExplainPaneWithOptions() {
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mockClaudeExplainAPI();
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openClaudeExplainPane();
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cy.wait('@getOptions');
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waitForDropdownsToLoad();
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}
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// In utils.ts for general helpers
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export function setMonacoEditorContent(content: string) { ... }
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```
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### 7. **State Persistence Between Pane Instances**
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Be aware that some state might be static (shared between instances) while other state is per-instance:
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- Static state (like consent, cache) persists when closing/reopening panes
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- Instance state is lost when panes close
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- This affects how you structure tests for features that should persist
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### 8. **Block Production APIs**
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Always block production API calls in tests to catch configuration issues:
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```javascript
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cy.intercept('https://api.compiler-explorer.com/**', {
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statusCode: 500,
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body: {error: 'BLOCKED PRODUCTION API'}
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}).as('blockedProduction');
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```
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## Common Issues & Solutions
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### Tests Getting Progressively Slower
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- **Cause**: Intercept accumulation
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- **Solution**: Clear intercepts in `afterEach` using `clearAllIntercepts()` from utils or manually with `cy.state('routes', [])`
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### "Element not found" Despite Being Visible
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- **Cause**: Selecting template elements from GoldenLayout
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- **Solution**: Use `:visible` pseudo-selector
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### API Mocks Not Working
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- **Cause**: Mock setup after the request is made
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- **Solution**: Set up mocks before opening panes or triggering actions
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### Dropdown Selection Failing
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- **Cause**: Trying to select before async population completes
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- **Solution**: Wait for loading indicators to disappear first
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### State Not Persisting in Tests
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- **Cause**: Not understanding static vs instance variables
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- **Solution**: Check if the feature uses static state that should persist
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## Test Organization
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- Keep feature-specific test helpers in the test file itself
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- Only put truly reusable utilities in `support/utils.ts`
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- Use descriptive helper function names that indicate what they do
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- Group related tests in `describe` blocks
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- Use consistent test data across all tests in a feature
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## Debugging Tips
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1. Use `cy.log()` to debug what values you're actually getting
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2. Check the Cypress command log for unexpected API calls
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3. Look for console errors that might indicate JavaScript issues
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4. Use `.then()` to inspect element state at specific points
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5. Check network tab for requests hitting production instead of mocks
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613
cypress/e2e/claude-explain.cy.ts
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613
cypress/e2e/claude-explain.cy.ts
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// Copyright (c) 2025, Compiler Explorer Authors
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are met:
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//
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// * Redistributions of source code must retain the above copyright notice,
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// this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above copyright
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// notice, this list of conditions and the following disclaimer in the
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// documentation and/or other materials provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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// POSSIBILITY OF SUCH DAMAGE.
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import {clearAllIntercepts, setMonacoEditorContent, stubConsoleOutput} from '../support/utils';
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// Claude Explain specific test utilities
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function mockClaudeExplainAPI() {
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// Mock GET request for options
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cy.intercept('GET', 'http://test.localhost/fake-api/explain', {
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statusCode: 200,
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body: {
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audience: [
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{value: 'test_first', description: 'Test first audience level'},
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{value: 'test_second', description: 'Test second audience level'},
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{value: 'test_third', description: 'Test third audience level'},
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],
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explanation: [
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{value: 'focus_a', description: 'Test focus A explanation type'},
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{value: 'focus_b', description: 'Test focus B explanation type'},
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{value: 'focus_c', description: 'Test focus C explanation type'},
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],
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},
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}).as('getOptions');
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// Mock POST request for explanation
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cy.intercept('POST', 'http://test.localhost/fake-api/explain', {
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statusCode: 200,
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body: {
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status: 'success',
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explanation: '## Test Assembly Explanation\nThis is a test explanation from the mocked API.',
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usage: {totalTokens: 150},
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model: 'claude-3-test',
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cost: {totalCost: 0.001},
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},
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}).as('explainRequest');
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}
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function openClaudeExplainPane() {
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cy.get('[data-cy="new-compiler-dropdown-btn"]:visible').click();
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cy.get('[data-cy="new-view-explain-btn"]:visible').click();
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}
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function setupClaudeExplainEnvironment() {
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// Start with clean intercepts
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clearAllIntercepts();
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// Belt and suspenders: block production API calls
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cy.intercept('https://api.compiler-explorer.com/**', {statusCode: 500, body: {error: 'BLOCKED PRODUCTION API'}}).as(
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'blockedProduction',
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);
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// Set up configuration
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cy.visit('/', {
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onBeforeLoad: (win: any) => {
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stubConsoleOutput(win);
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win.compilerExplorerOptions = win.compilerExplorerOptions || {};
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win.compilerExplorerOptions.explainApiEndpoint = 'http://test.localhost/fake-api/explain';
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},
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});
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// Force override after page loads
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cy.window().then((win: any) => {
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win.compilerExplorerOptions.explainApiEndpoint = 'http://test.localhost/fake-api/explain';
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});
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}
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function mockClaudeExplainAPIWithOptions() {
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// Just call the standard mock for consistency
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mockClaudeExplainAPI();
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}
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function mockSuccessfulExplanation() {
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cy.intercept('POST', 'http://test.localhost/fake-api/explain', {
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statusCode: 200,
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body: {
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status: 'success',
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explanation:
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'## Understanding Your Assembly Code\n\nThis simple program:\n\n```cpp\nint main() {\n return 42;\n}\n```\n\nCompiles to very efficient assembly that:\n1. Sets up the stack frame\n2. Moves the value 42 into the return register\n3. Cleans up and returns\n\n### Key Instructions\n- `mov eax, 42` - Places our return value in the EAX register\n- `ret` - Returns control to the caller',
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usage: {
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inputTokens: 250,
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outputTokens: 120,
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totalTokens: 370,
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},
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model: 'claude-3-haiku',
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cost: {
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inputCost: 0.00025,
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outputCost: 0.0012,
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totalCost: 0.00145,
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},
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},
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}).as('explainRequest');
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}
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function mockAPIError() {
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cy.intercept('POST', 'http://test.localhost/fake-api/explain', {
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statusCode: 500,
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body: {error: 'Internal server error'},
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}).as('explainError');
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}
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function giveConsentAndWait() {
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cy.get('.consent-btn:visible').click();
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cy.wait('@explainRequest');
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}
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function mockCachedExplanation() {
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const mockResponse = {
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status: 'success',
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explanation: 'This is a cached explanation',
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usage: {totalTokens: 100},
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model: 'claude-3',
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cost: {totalCost: 0.001},
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};
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cy.intercept('POST', 'http://test.localhost/fake-api/explain', mockResponse).as('explainRequest');
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}
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// Simplified test helpers
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function waitForDropdownsToLoad() {
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cy.get('.explain-audience:visible option[value="loading"]').should('not.exist');
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cy.get('.explain-type:visible option[value="loading"]').should('not.exist');
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}
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function openClaudeExplainPaneWithOptions() {
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mockClaudeExplainAPI();
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openClaudeExplainPane();
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cy.wait('@getOptions');
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waitForDropdownsToLoad();
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}
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describe('Claude Explain feature', () => {
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beforeEach(() => {
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setupClaudeExplainEnvironment();
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});
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afterEach(() => {
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// Clear all Cypress intercepts to prevent O(n²) accumulation
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cy.state('routes', []);
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cy.state('aliases', {});
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// Clear storage and state but avoid aggressive DOM manipulation
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cy.window().then(win => {
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// Clear any stored explain state/cache
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win.localStorage.clear();
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win.sessionStorage.clear();
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// Reset compiler explorer options
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win.compilerExplorerOptions = {};
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// Instead of force-closing tabs, let natural cleanup happen
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// The next beforeEach will reload the page anyway
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});
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});
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describe('Basic functionality', () => {
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it('should open Claude Explain pane from compiler toolbar', () => {
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openClaudeExplainPaneWithOptions();
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// Verify the explain pane opened
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cy.get('.lm_title').should('contain', 'Claude Explain');
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cy.get('.explain-consent').should('be.visible');
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});
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it('should show consent dialog on first use', () => {
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openClaudeExplainPaneWithOptions();
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// Verify consent dialog is shown (use :visible to avoid template elements)
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cy.get('.explain-consent:visible').should('be.visible');
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cy.get('.explain-consent:visible').should('contain', 'Consent Request');
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cy.get('.explain-consent:visible').should('contain', 'Claude Explain will send your source code');
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cy.get('.explain-consent:visible').should('contain', 'compilation output');
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cy.get('.explain-consent:visible').should('contain', 'Anthropic');
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// Verify consent button exists
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cy.get('.consent-btn:visible').should('be.visible');
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cy.get('.consent-btn:visible').should('contain', 'Yes, explain this code');
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});
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it('should remember consent for the session', () => {
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mockClaudeExplainAPIWithOptions();
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mockClaudeExplainAPI();
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// Open first explain pane and give consent
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openClaudeExplainPane();
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cy.get('.consent-btn:visible').click();
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cy.wait('@explainRequest');
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// Close the explain pane
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cy.get('.lm_close_tab').last().click();
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// Set up mocks again before reopening
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mockClaudeExplainAPIWithOptions();
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// Open a new explain pane
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openClaudeExplainPane();
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// Verify consent dialog is NOT shown again (check for visible consent, not template)
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cy.get('.explain-consent:visible').should('not.exist');
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cy.get('.explain-content').should('be.visible');
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});
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});
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describe('no-ai directive handling', () => {
|
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it('should detect no-ai directive and show special message', () => {
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// Update code to include no-ai directive
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setMonacoEditorContent('// no-ai\nint main() {\n return 42;\n}');
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openClaudeExplainPaneWithOptions();
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// Verify no-ai message is shown (use :visible to avoid template elements)
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cy.get('.explain-no-ai:visible').should('be.visible');
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cy.get('.explain-no-ai:visible').should('contain', 'AI Explanation Not Available');
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cy.get('.explain-no-ai:visible').should('contain', 'no-ai');
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|
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// Verify consent dialog is NOT shown (check visible elements only)
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cy.get('.explain-consent:visible').should('not.exist');
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});
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it('should detect case-insensitive no-ai directive', () => {
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// Update code with different case
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setMonacoEditorContent('// NO-AI\nint main() {\n return 0;\n}');
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openClaudeExplainPaneWithOptions();
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|
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// Should still detect it (use :visible to avoid template elements)
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cy.get('.explain-no-ai:visible').should('be.visible');
|
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});
|
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});
|
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|
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describe('API interaction and explanations', () => {
|
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it('should fetch and display explanation after consent', () => {
|
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mockClaudeExplainAPIWithOptions();
|
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mockSuccessfulExplanation();
|
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|
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// Open explain pane
|
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openClaudeExplainPane();
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|
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// Give consent and wait for API call
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giveConsentAndWait();
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cy.wait('@getOptions');
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|
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// Verify explanation is displayed (use :visible to avoid template elements)
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cy.get('.explain-content:visible').should('be.visible');
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cy.get('.explain-content:visible').should('contain', 'Understanding Your Assembly Code');
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cy.get('.explain-content:visible').should('contain', 'mov eax, 42');
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|
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// Verify markdown is rendered (should have headers)
|
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cy.get('.explain-content:visible h2').should('exist');
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cy.get('.explain-content:visible h3').should('exist');
|
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cy.get('.explain-content:visible code').should('exist');
|
||||
|
||||
// Verify stats are shown
|
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cy.get('.explain-stats:visible').should('be.visible');
|
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cy.get('.explain-stats:visible').should('contain', 'Fresh');
|
||||
cy.get('.explain-stats:visible').should('contain', 'Model: claude-3-haiku');
|
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cy.get('.explain-stats:visible').should('contain', 'Tokens: 370');
|
||||
cy.get('.explain-stats:visible').should('contain', 'Cost: $0.001450');
|
||||
});
|
||||
|
||||
it('should handle API errors gracefully', () => {
|
||||
mockClaudeExplainAPIWithOptions();
|
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mockAPIError();
|
||||
|
||||
// Open pane and consent
|
||||
openClaudeExplainPane();
|
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cy.get('.consent-btn:visible').click();
|
||||
|
||||
// Wait for error
|
||||
cy.wait('@explainError');
|
||||
|
||||
// Verify error is displayed (use :visible to avoid template elements)
|
||||
cy.get('.explain-content:visible').should('contain', 'Error');
|
||||
cy.get('.explain-content:visible').should('contain', 'Server returned 500');
|
||||
|
||||
// Verify error icon
|
||||
cy.get('.status-icon.fa-times-circle:visible').should('be.visible');
|
||||
});
|
||||
|
||||
it('should show loading state during API call', () => {
|
||||
mockClaudeExplainAPIWithOptions();
|
||||
|
||||
// Mock slow API response with direct reply (no network request)
|
||||
cy.intercept('POST', 'http://test.localhost/fake-api/explain', {
|
||||
delay: 1000,
|
||||
statusCode: 200,
|
||||
body: {
|
||||
status: 'success',
|
||||
explanation: 'Test explanation',
|
||||
},
|
||||
}).as('slowExplain');
|
||||
|
||||
// Open pane and consent
|
||||
openClaudeExplainPane();
|
||||
cy.get('.consent-btn:visible').click();
|
||||
|
||||
// Verify loading state (use :visible to avoid template elements)
|
||||
cy.get('.status-icon.fa-spinner.fa-spin:visible').should('be.visible');
|
||||
cy.get('.explain-content:visible').should('contain', 'Generating explanation...');
|
||||
|
||||
// Wait for response
|
||||
cy.wait('@slowExplain');
|
||||
|
||||
// Verify loading state is gone
|
||||
cy.get('.status-icon.fa-spinner:visible').should('not.exist');
|
||||
cy.get('.status-icon.fa-check-circle:visible').should('be.visible');
|
||||
});
|
||||
});
|
||||
|
||||
describe('Options and customization', () => {
|
||||
it('should load and display audience and explanation options', () => {
|
||||
openClaudeExplainPaneWithOptions();
|
||||
|
||||
// Verify audience dropdown (use :visible to avoid template elements)
|
||||
cy.get('.explain-audience:visible').should('be.visible');
|
||||
cy.get('.explain-audience:visible option').should('have.length', 3);
|
||||
cy.get('.explain-audience:visible option[value="test_first"]').should('exist');
|
||||
cy.get('.explain-audience:visible option[value="test_second"]').should('exist');
|
||||
cy.get('.explain-audience:visible option[value="test_third"]').should('exist');
|
||||
|
||||
// Verify explanation type dropdown
|
||||
cy.get('.explain-type:visible').should('be.visible');
|
||||
cy.get('.explain-type:visible option').should('have.length', 3);
|
||||
cy.get('.explain-type:visible option[value="focus_a"]').should('exist');
|
||||
cy.get('.explain-type:visible option[value="focus_b"]').should('exist');
|
||||
cy.get('.explain-type:visible option[value="focus_c"]').should('exist');
|
||||
|
||||
// Verify info buttons
|
||||
cy.get('.explain-audience-info:visible').should('be.visible');
|
||||
cy.get('.explain-type-info:visible').should('be.visible');
|
||||
});
|
||||
|
||||
it('should show popover descriptions for options', () => {
|
||||
openClaudeExplainPaneWithOptions();
|
||||
|
||||
// Click audience info button (use :visible to avoid template elements)
|
||||
cy.get('.explain-audience-info:visible').click();
|
||||
|
||||
// Verify popover appears
|
||||
cy.get('.popover:visible').should('be.visible');
|
||||
cy.get('.popover-body:visible').should('contain', 'Test_first:');
|
||||
cy.get('.popover-body:visible').should('contain', 'Test first audience level');
|
||||
|
||||
// Click away to close
|
||||
cy.get('.explain-content:visible').click();
|
||||
cy.get('.popover:visible').should('not.exist');
|
||||
|
||||
// Click explanation info button
|
||||
cy.get('.explain-type-info:visible').click();
|
||||
cy.get('.popover:visible').should('be.visible');
|
||||
cy.get('.popover-body:visible').should('contain', 'Focus_a:');
|
||||
cy.get('.popover-body:visible').should('contain', 'Test focus A');
|
||||
});
|
||||
|
||||
it('should re-fetch explanation when options change', () => {
|
||||
// Block production API
|
||||
cy.intercept('https://api.compiler-explorer.com/**', {
|
||||
statusCode: 500,
|
||||
body: {error: 'BLOCKED PRODUCTION API'},
|
||||
}).as('blockedProduction');
|
||||
|
||||
// Only set up GET mock for options, not POST (we have custom POST below)
|
||||
cy.intercept('GET', 'http://test.localhost/fake-api/explain', {
|
||||
statusCode: 200,
|
||||
body: {
|
||||
audience: [
|
||||
{value: 'test_first', description: 'Test first audience level'},
|
||||
{value: 'test_second', description: 'Test second audience level'},
|
||||
{value: 'test_third', description: 'Test third audience level'},
|
||||
],
|
||||
explanation: [
|
||||
{value: 'focus_a', description: 'Test focus A explanation type'},
|
||||
{value: 'focus_b', description: 'Test focus B explanation type'},
|
||||
{value: 'focus_c', description: 'Test focus C explanation type'},
|
||||
],
|
||||
},
|
||||
}).as('getOptions');
|
||||
|
||||
let explainCallCount = 0;
|
||||
cy.intercept('POST', 'http://test.localhost/fake-api/explain', (req: any) => {
|
||||
explainCallCount++;
|
||||
req.reply({
|
||||
status: 'success',
|
||||
explanation: `Explanation #${explainCallCount} for ${req.body.audience} audience`,
|
||||
usage: {totalTokens: 100},
|
||||
model: 'test-model',
|
||||
cost: {totalCost: 0.001},
|
||||
});
|
||||
}).as('explainRequest');
|
||||
|
||||
// Open pane and wait for options to load first
|
||||
openClaudeExplainPane();
|
||||
cy.wait('@getOptions');
|
||||
waitForDropdownsToLoad();
|
||||
|
||||
// Give consent
|
||||
giveConsentAndWait();
|
||||
|
||||
// Wait a bit for content to render
|
||||
cy.wait(100);
|
||||
|
||||
// Verify initial explanation (just check for the count, not the full text)
|
||||
cy.get('.explain-content:visible').should('contain', 'Explanation #1');
|
||||
|
||||
// Change audience level
|
||||
cy.get('.explain-audience:visible').select('test_second');
|
||||
|
||||
// Should trigger new request
|
||||
cy.wait('@explainRequest');
|
||||
cy.get('.explain-content:visible').should('contain', 'Explanation #2');
|
||||
|
||||
// Change explanation type
|
||||
cy.get('.explain-type:visible').select('focus_b');
|
||||
|
||||
// Should trigger another request
|
||||
cy.wait('@explainRequest');
|
||||
cy.get('.explain-content:visible').should('contain', 'Explanation #3');
|
||||
});
|
||||
});
|
||||
|
||||
describe('Caching and reload', () => {
|
||||
it('should cache responses and show cache status', () => {
|
||||
mockClaudeExplainAPIWithOptions();
|
||||
mockCachedExplanation();
|
||||
|
||||
// Open pane and get first explanation
|
||||
openClaudeExplainPane();
|
||||
giveConsentAndWait();
|
||||
|
||||
// Verify fresh status (use :visible to avoid template elements)
|
||||
cy.get('.explain-stats:visible').should('contain', 'Fresh');
|
||||
|
||||
// Close and reopen pane (should use client cache)
|
||||
cy.get('.lm_close_tab').last().click();
|
||||
|
||||
// Set up options mock only (needed for pane constructor) but NOT explanation mock
|
||||
mockClaudeExplainAPIWithOptions();
|
||||
openClaudeExplainPane();
|
||||
|
||||
// Since consent was already given, it should go straight to cached content
|
||||
// (no consent dialog should appear)
|
||||
cy.get('.explain-consent:visible').should('not.exist');
|
||||
|
||||
// Should use cached explanation data
|
||||
cy.get('.explain-content:visible').should('contain', 'This is a cached explanation');
|
||||
cy.get('.explain-stats:visible').should('contain', 'Cached (client)');
|
||||
});
|
||||
|
||||
it('should bypass cache when reload button is clicked', () => {
|
||||
mockClaudeExplainAPIWithOptions();
|
||||
|
||||
let callCount = 0;
|
||||
cy.intercept('POST', 'http://test.localhost/fake-api/explain', (req: any) => {
|
||||
callCount++;
|
||||
const isBypassCache = req.body.bypassCache === true;
|
||||
req.reply({
|
||||
status: 'success',
|
||||
explanation: `Explanation #${callCount}${isBypassCache ? ' (bypassed cache)' : ''}`,
|
||||
});
|
||||
}).as('explainRequest');
|
||||
|
||||
// Get initial explanation
|
||||
openClaudeExplainPane();
|
||||
giveConsentAndWait();
|
||||
|
||||
cy.get('.explain-content:visible').should('contain', 'Explanation #1');
|
||||
|
||||
// Click reload button (use :visible to avoid template elements)
|
||||
cy.get('.explain-reload:visible').click();
|
||||
cy.wait('@explainRequest');
|
||||
|
||||
// Should have made a new request with bypassCache flag
|
||||
cy.get('.explain-content:visible').should('contain', 'Explanation #2 (bypassed cache)');
|
||||
});
|
||||
});
|
||||
|
||||
describe('Compilation state handling', () => {
|
||||
it('should handle compilation failures', () => {
|
||||
// Add invalid code
|
||||
setMonacoEditorContent('this is not valid C++ code');
|
||||
|
||||
openClaudeExplainPaneWithOptions();
|
||||
|
||||
// Should show compilation failed message (use :visible to avoid template elements)
|
||||
cy.get('.explain-content:visible').should('contain', 'Cannot explain: Compilation failed');
|
||||
|
||||
// Should not show consent dialog
|
||||
cy.get('.explain-consent:visible').should('not.exist');
|
||||
});
|
||||
|
||||
it('should update explanation when code changes', () => {
|
||||
mockClaudeExplainAPIWithOptions();
|
||||
|
||||
let explainCount = 0;
|
||||
cy.intercept('POST', 'http://test.localhost/fake-api/explain', (req: any) => {
|
||||
explainCount++;
|
||||
req.reply({
|
||||
status: 'success',
|
||||
explanation: `Explanation for version ${explainCount}`,
|
||||
});
|
||||
}).as('explainRequest');
|
||||
|
||||
// Open pane and get initial explanation
|
||||
openClaudeExplainPane();
|
||||
giveConsentAndWait();
|
||||
|
||||
cy.get('.explain-content:visible').should('contain', 'Explanation for version 1');
|
||||
|
||||
// Change the code
|
||||
setMonacoEditorContent('int main() {\n return 100;\n}');
|
||||
|
||||
// Wait for new explanation
|
||||
cy.wait('@explainRequest');
|
||||
|
||||
cy.get('.explain-content:visible').should('contain', 'Explanation for version 2');
|
||||
});
|
||||
});
|
||||
|
||||
describe('UI state and theming', () => {
|
||||
it('should persist option selections in state', () => {
|
||||
// Mock API with test options
|
||||
mockClaudeExplainAPI();
|
||||
|
||||
// Open pane
|
||||
openClaudeExplainPane();
|
||||
|
||||
// Add error listener to catch JS errors
|
||||
cy.window().then(win => {
|
||||
win.addEventListener('error', e => {
|
||||
cy.log('JS Error:', e.message, 'at', e.filename + ':' + e.lineno);
|
||||
});
|
||||
win.addEventListener('unhandledrejection', e => {
|
||||
cy.log('Unhandled Promise Rejection:', e.reason);
|
||||
});
|
||||
});
|
||||
|
||||
// Wait for options to load
|
||||
cy.wait('@getOptions');
|
||||
|
||||
// Wait for dropdown to be populated (wait for "Loading..." to disappear)
|
||||
cy.get('.explain-audience:visible option[value="loading"]').should('not.exist');
|
||||
cy.get('.explain-type:visible option[value="loading"]').should('not.exist');
|
||||
|
||||
// Give consent first to make dropdowns available
|
||||
cy.get('.consent-btn:visible').click();
|
||||
|
||||
// Wait for dropdowns to be populated with actual options
|
||||
cy.get('.explain-audience:visible option[value="test_second"]').should('exist');
|
||||
cy.get('.explain-type:visible option[value="focus_b"]').should('exist');
|
||||
|
||||
// Now change options after consent (use :visible to avoid template elements)
|
||||
cy.get('.explain-audience:visible').select('test_second');
|
||||
cy.get('.explain-type:visible').select('focus_b');
|
||||
|
||||
// Wait for the explanation request triggered by option changes
|
||||
cy.wait('@explainRequest');
|
||||
|
||||
// Get the current URL (which includes state)
|
||||
cy.url().then((url: any) => {
|
||||
// Clear intercepts from previous test
|
||||
cy.state('routes', []);
|
||||
cy.state('aliases', {});
|
||||
|
||||
// Set up mocks BEFORE visiting
|
||||
mockClaudeExplainAPI();
|
||||
|
||||
// Block production API
|
||||
cy.intercept('https://api.compiler-explorer.com/**', {
|
||||
statusCode: 500,
|
||||
body: {error: 'BLOCKED PRODUCTION API'},
|
||||
}).as('blockedProduction');
|
||||
|
||||
// Visit the URL with configuration
|
||||
cy.visit(url, {
|
||||
onBeforeLoad: (win: any) => {
|
||||
win.compilerExplorerOptions = win.compilerExplorerOptions || {};
|
||||
win.compilerExplorerOptions.explainApiEndpoint = 'http://test.localhost/fake-api/explain';
|
||||
},
|
||||
});
|
||||
|
||||
// Force override after page loads (in case it gets reset)
|
||||
cy.window().then((win: any) => {
|
||||
win.compilerExplorerOptions = win.compilerExplorerOptions || {};
|
||||
win.compilerExplorerOptions.explainApiEndpoint = 'http://test.localhost/fake-api/explain';
|
||||
});
|
||||
|
||||
// Verify options are restored
|
||||
cy.get('.explain-audience:visible').should('have.value', 'test_second');
|
||||
cy.get('.explain-type:visible').should('have.value', 'focus_b');
|
||||
});
|
||||
});
|
||||
});
|
||||
});
|
||||
68
cypress/e2e/monaco-test.cy.ts
Normal file
68
cypress/e2e/monaco-test.cy.ts
Normal file
@@ -0,0 +1,68 @@
|
||||
// Copyright (c) 2025, Compiler Explorer Authors
|
||||
// All rights reserved.
|
||||
//
|
||||
// Redistribution and use in source and binary forms, with or without
|
||||
// modification, are permitted provided that the following conditions are met:
|
||||
//
|
||||
// * Redistributions of source code must retain the above copyright notice,
|
||||
// this list of conditions and the following disclaimer.
|
||||
// * Redistributions in binary form must reproduce the above copyright
|
||||
// notice, this list of conditions and the following disclaimer in the
|
||||
// documentation and/or other materials provided with the distribution.
|
||||
//
|
||||
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
||||
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
||||
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
||||
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
||||
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
||||
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
||||
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
||||
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
||||
// POSSIBILITY OF SUCH DAMAGE.
|
||||
|
||||
import {setMonacoEditorContent} from '../support/utils';
|
||||
|
||||
describe('Monaco Editor Utilities', () => {
|
||||
beforeEach(() => {
|
||||
cy.visit('/');
|
||||
});
|
||||
|
||||
it('should set simple code content', () => {
|
||||
const simpleCode = 'int main() { return 42; }';
|
||||
setMonacoEditorContent(simpleCode);
|
||||
|
||||
// Verify the content was set (basic check)
|
||||
cy.get('.monaco-editor').should('contain.text', 'main');
|
||||
});
|
||||
|
||||
it('should set complex multi-line code content', () => {
|
||||
const complexCode = `#include <iostream>
|
||||
#include <vector>
|
||||
|
||||
int main() {
|
||||
std::vector<int> nums = {1, 2, 3, 4, 5};
|
||||
|
||||
for (int num : nums) {
|
||||
std::cout << num << std::endl;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}`;
|
||||
setMonacoEditorContent(complexCode);
|
||||
|
||||
// Verify the content was set (basic check)
|
||||
cy.get('.monaco-editor').should('contain.text', 'iostream');
|
||||
cy.get('.monaco-editor').should('contain.text', 'vector');
|
||||
});
|
||||
|
||||
it('should handle special characters and quotes', () => {
|
||||
const codeWithSpecialChars = `const char* message = "Hello, \"World\"!";
|
||||
int result = (x > 0) ? x : -x;`;
|
||||
setMonacoEditorContent(codeWithSpecialChars);
|
||||
|
||||
// Verify the content was set (basic check)
|
||||
cy.get('.monaco-editor').should('contain.text', 'Hello');
|
||||
});
|
||||
});
|
||||
@@ -11,3 +11,55 @@ export function assertNoConsoleOutput() {
|
||||
cy.get('@consoleWarn').should('not.be.called');
|
||||
cy.get('@consoleError').should('not.be.called');
|
||||
}
|
||||
|
||||
/**
|
||||
* Clear all network intercepts to prevent accumulation
|
||||
*/
|
||||
export function clearAllIntercepts() {
|
||||
// Clear any existing intercepts by visiting a clean page and resetting
|
||||
cy.window().then((win: any) => {
|
||||
// Reset any cached state
|
||||
win.compilerExplorerOptions = {};
|
||||
});
|
||||
}
|
||||
|
||||
/**
|
||||
* Sets content in Monaco editor using a synthetic paste event
|
||||
* @param content - The code content to set
|
||||
* @param editorIndex - Which editor to target (default: 0 for first editor)
|
||||
*/
|
||||
export function setMonacoEditorContent(content: string, editorIndex = 0) {
|
||||
// Wait for Monaco editor to be visible in DOM
|
||||
cy.get('.monaco-editor').should('be.visible');
|
||||
|
||||
// Select all and delete existing content
|
||||
cy.get('.monaco-editor textarea').eq(editorIndex).focus().type('{ctrl}a{del}', {force: true});
|
||||
|
||||
// Trigger a paste event with our content
|
||||
cy.get('.monaco-editor textarea')
|
||||
.eq(editorIndex)
|
||||
.then(($element: any) => {
|
||||
const el = $element[0];
|
||||
|
||||
// Create and dispatch a paste event with our data
|
||||
const pasteEvent = new ClipboardEvent('paste', {
|
||||
bubbles: true,
|
||||
cancelable: true,
|
||||
clipboardData: new DataTransfer(),
|
||||
});
|
||||
|
||||
// Add our text to the clipboard data
|
||||
pasteEvent.clipboardData?.setData('text/plain', content);
|
||||
|
||||
// Dispatch the event
|
||||
el.dispatchEvent(pasteEvent);
|
||||
});
|
||||
|
||||
// Wait for compilation to complete after content change (if compiler exists)
|
||||
cy.get('body').then(($body: any) => {
|
||||
if ($body.find('.compiler-wrapper').length > 0) {
|
||||
cy.get('.compiler-wrapper').should('not.have.class', 'compiling');
|
||||
}
|
||||
// If no compiler wrapper exists yet, that's fine - compilation will happen when compiler is added
|
||||
});
|
||||
}
|
||||
|
||||
@@ -52,6 +52,10 @@ The explain button appears automatically when configured.
|
||||
- Session-persistent consent and user preferences
|
||||
- Reload button to bypass all caches
|
||||
|
||||
**Testing**:
|
||||
- Comprehensive Cypress E2E tests covering UI interactions, consent flow, API mocking, caching behavior, and error handling
|
||||
- Tests verify explain pane functionality, theme persistence, and proper handling of compilation states
|
||||
|
||||
## API Integration
|
||||
|
||||
**GET /** - Fetch available options:
|
||||
|
||||
@@ -97,8 +97,6 @@ export class ExplainView extends Pane<ExplainViewState> {
|
||||
private readonly explanationInfoButton: JQuery;
|
||||
private readonly explainApiEndpoint: string;
|
||||
private readonly fontScale: FontScale;
|
||||
private readonly cache: LRUCache<string, ClaudeExplainResponse>;
|
||||
|
||||
// Use a static variable to persist consent across all instances during the session
|
||||
private static consentGiven = false;
|
||||
|
||||
@@ -106,6 +104,9 @@ export class ExplainView extends Pane<ExplainViewState> {
|
||||
private static availableOptions: AvailableOptions | null = null;
|
||||
private static optionsFetchPromise: Promise<AvailableOptions> | null = null;
|
||||
|
||||
// Static explanation cache shared across all instances (200KB limit)
|
||||
private static cache: LRUCache<string, ClaudeExplainResponse> | null = null;
|
||||
|
||||
// Instance variables for selected options
|
||||
private selectedAudience: string;
|
||||
private selectedExplanation: string;
|
||||
@@ -118,10 +119,14 @@ export class ExplainView extends Pane<ExplainViewState> {
|
||||
super(hub, container, state);
|
||||
|
||||
this.explainApiEndpoint = options.explainApiEndpoint ?? '';
|
||||
this.cache = new LRUCache({
|
||||
maxSize: 200 * 1024,
|
||||
sizeCalculation: n => JSON.stringify(n).length,
|
||||
});
|
||||
|
||||
// Initialize static cache if not already done
|
||||
if (!ExplainView.cache) {
|
||||
ExplainView.cache = new LRUCache({
|
||||
maxSize: 200 * 1024,
|
||||
sizeCalculation: n => JSON.stringify(n).length,
|
||||
});
|
||||
}
|
||||
|
||||
this.statusIcon = this.domRoot.find('.status-icon');
|
||||
this.consentElement = this.domRoot.find('.explain-consent');
|
||||
@@ -465,7 +470,7 @@ export class ExplainView extends Pane<ExplainViewState> {
|
||||
}
|
||||
|
||||
this.showSuccess();
|
||||
this.cache.set(cacheKey, data);
|
||||
ExplainView.cache!.set(cacheKey, data);
|
||||
this.renderMarkdown(data.explanation);
|
||||
this.showBottomBar();
|
||||
|
||||
@@ -505,7 +510,7 @@ export class ExplainView extends Pane<ExplainViewState> {
|
||||
|
||||
// Check cache first unless bypassing
|
||||
if (!bypassCache) {
|
||||
const cachedResult = this.cache.get(cacheKey);
|
||||
const cachedResult = ExplainView.cache!.get(cacheKey);
|
||||
if (cachedResult) {
|
||||
this.displayCachedResult(cachedResult);
|
||||
return;
|
||||
|
||||
Reference in New Issue
Block a user