extension.test.ts

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import * as assert from 'assert';
import * as vscode from 'vscode';
import * as path from 'path';
import * as fs from 'fs/promises';
import { moduleName } from '../constants';
import { activate, deactivate } from '../extension';
 
suite('Extension Integration Test Suite', () => {
    let testDocument: vscode.TextDocument | undefined;
    let testEditor: vscode.TextEditor | undefined;
    let tempDir: string;
    let extensionContext: vscode.ExtensionContext;
 
    suiteSetup(async () => {
        // Create temporary directory for test files
        tempDir = await fs.mkdtemp(path.join(require('os').tmpdir(), 'extension-test-'));
 
        // Try to get extension context (may not be available in test environment)
        const possibleIds = ['asperguide.asperheader', 'henryletellierfr.asperheader', 'asperheader'];
        let extension: vscode.Extension<any> | undefined;
 
        for (const id of possibleIds) {
            extension = vscode.extensions.getExtension(id);
            if (extension) {
                break;
            }
        }
 
        if (extension) {
            try {
                await extension.activate();
                extensionContext = extension.exports?.context || {
                    extensionPath: extension.extensionPath,
                    subscriptions: [],
                    workspaceState: {
                        get: () => undefined,
                        update: () => Promise.resolve()
                    },
                    globalState: {
                        get: () => undefined,
                        update: () => Promise.resolve(),
                        setKeysForSync: () => { }
                    }
                } as any;
            } catch (error) {
                // Extension activation might fail in test environment
                console.log('Extension activation failed in test environment:', error);
            }
        } else {
            // Create mock context for test environment
            extensionContext = {
                extensionPath: path.resolve(__dirname, '..', '..'),
                subscriptions: [],
                workspaceState: {
                    get: () => undefined,
                    update: () => Promise.resolve()
                },
                globalState: {
                    get: () => undefined,
                    update: () => Promise.resolve(),
                    setKeysForSync: () => { }
                }
            } as any;
        }
    });
 
    suiteTeardown(async () => {
        // Cleanup temporary files
        if (tempDir) {
            await fs.rmdir(tempDir, { recursive: true }).catch(() => { });
        }
 
        // Close any open test documents
        if (testDocument) {
            await vscode.window.showTextDocument(testDocument);
            await vscode.commands.executeCommand('workbench.action.closeActiveEditor');
        }
    });
 
    setup(async () => {
        // Reset test state before each test
        testDocument = undefined;
        testEditor = undefined;
    });
 
    teardown(async () => {
        // Cleanup after each test
        if (testEditor) {
            await vscode.commands.executeCommand('workbench.action.closeActiveEditor');
        }
    });
 
    suite('Extension Lifecycle', () => {
        test('should activate successfully', async () => {
            // Try multiple possible extension identifiers
            const possibleIds = [
                'asperguide.asperheader',
                'henryletellierfr.asperheader',
                'asperheader'
            ];
 
            let extension: vscode.Extension<any> | undefined;
            for (const id of possibleIds) {
                extension = vscode.extensions.getExtension(id);
                if (extension) {
                    break;
                }
            }
 
            // If no extension found by ID, check if we're running in development
            if (!extension) {
                // In test environment, the extension might not be formally "installed"
                // Check if our activate function exists and can be called
                assert.doesNotThrow(() => {
                    // Import should work if extension is properly loaded
                    require('../extension');
                }, 'Extension module should be loadable');
                return; // Skip the rest if we can't find the extension by ID
            }
 
            assert.ok(extension, 'Extension should be loaded');
 
            // Try to activate if not already active
            if (!extension.isActive) {
                try {
                    await extension.activate();
                } catch (error) {
                    // Activation might fail in test environment, that's acceptable
                }
            }
        });
 
        test('should register all expected commands', async () => {
            const commands = await vscode.commands.getCommands(true);
 
            const expectedCommands = [
                `${moduleName}.helloWorld`,
                `${moduleName}.sayHelloWorld`,
                `${moduleName}.injectHeader`,
                `${moduleName}.refreshHeader`,
                `${moduleName}.darling`,
                `${moduleName}.author`,
                `${moduleName}.displayRandomLogo`
            ];
 
            for (const expectedCommand of expectedCommands) {
                assert.ok(
                    commands.includes(expectedCommand),
                    `Command '${expectedCommand}' should be registered`
                );
            }
        });
 
        test('should handle deactivation gracefully', () => {
            // Test that deactivation doesn't throw errors
            assert.doesNotThrow(() => {
                deactivate();
            }, 'Deactivation should not throw errors');
        });
    });
 
    suite('Command Execution Tests', () => {
        test('should execute helloWorld command without errors', async () => {
            await assert.doesNotReject(async () => {
                await vscode.commands.executeCommand(`${moduleName}.helloWorld`);
            }, 'HelloWorld command should execute without errors');
        });
 
        test('should execute sayHelloWorld command with active editor', async () => {
            // Create a test document
            const testContent = '// Test file content\n';
            const testFilePath = path.join(tempDir, 'test.ts');
            await fs.writeFile(testFilePath, testContent);
 
            const uri = vscode.Uri.file(testFilePath);
            testDocument = await vscode.workspace.openTextDocument(uri);
            testEditor = await vscode.window.showTextDocument(testDocument);
 
            const originalLength = testDocument.getText().length;
 
            await vscode.commands.executeCommand(`${moduleName}.sayHelloWorld`);
 
            // Should have added content to the document
            const newLength = testDocument.getText().length;
            assert.ok(newLength > originalLength, 'Content should be added to the document');
        });
 
        test('should handle sayHelloWorld command with no active editor', async () => {
            // Ensure no active editor
            await vscode.commands.executeCommand('workbench.action.closeAllEditors');
 
            // Command should not throw but may show an error message
            await assert.doesNotReject(async () => {
                await vscode.commands.executeCommand(`${moduleName}.sayHelloWorld`);
            }, 'SayHelloWorld command should handle no active editor gracefully');
        });
 
        test('should execute injectHeader command', async () => {
            await assert.doesNotReject(async () => {
                await vscode.commands.executeCommand(`${moduleName}.injectHeader`);
            }, 'InjectHeader command should execute without errors');
        });
 
        test('should execute refreshHeader command', async () => {
            await assert.doesNotReject(async () => {
                await vscode.commands.executeCommand(`${moduleName}.refreshHeader`);
            }, 'RefreshHeader command should execute without errors');
        });
 
        test('should execute darling command', async () => {
            await assert.doesNotReject(async () => {
                await vscode.commands.executeCommand(`${moduleName}.darling`);
            }, 'Darling command should execute without errors');
        });
 
        test('should execute author command', async () => {
            await assert.doesNotReject(async () => {
                await vscode.commands.executeCommand(`${moduleName}.author`);
            }, 'Author command should execute without errors');
        });
 
        test('should execute displayRandomLogo command', async () => {
            await assert.doesNotReject(async () => {
                await vscode.commands.executeCommand(`${moduleName}.displayRandomLogo`);
            }, 'DisplayRandomLogo command should execute without errors');
        });
    });
 
    suite('File Information Extraction', () => {
        test('should extract file info from TypeScript file', async () => {
            const testContent = 'const test: string = "hello";';
            const testFilePath = path.join(tempDir, 'test.ts');
            await fs.writeFile(testFilePath, testContent);
 
            const uri = vscode.Uri.file(testFilePath);
            testDocument = await vscode.workspace.openTextDocument(uri);
            testEditor = await vscode.window.showTextDocument(testDocument);
 
            // Execute sayHelloWorld which uses getFileInfo internally
            await vscode.commands.executeCommand(`${moduleName}.sayHelloWorld`);
 
            const documentText = testDocument.getText();
            assert.ok(documentText.includes('.ts'), 'Should detect TypeScript file extension');
            assert.ok(documentText.includes('test.ts'), 'Should detect correct filename');
        });
 
        test('should extract file info from Python file', async () => {
            const testContent = 'print("hello world")';
            const testFilePath = path.join(tempDir, 'test.py');
            await fs.writeFile(testFilePath, testContent);
 
            const uri = vscode.Uri.file(testFilePath);
            testDocument = await vscode.workspace.openTextDocument(uri);
            testEditor = await vscode.window.showTextDocument(testDocument);
 
            await vscode.commands.executeCommand(`${moduleName}.sayHelloWorld`);
 
            const documentText = testDocument.getText();
            assert.ok(documentText.includes('.py'), 'Should detect Python file extension');
            assert.ok(documentText.includes('test.py'), 'Should detect correct filename');
        });
 
        test('should handle files without extensions', async () => {
            const testContent = 'Some content without extension';
            const testFilePath = path.join(tempDir, 'README');
            await fs.writeFile(testFilePath, testContent);
 
            const uri = vscode.Uri.file(testFilePath);
            testDocument = await vscode.workspace.openTextDocument(uri);
            testEditor = await vscode.window.showTextDocument(testDocument);
 
            await vscode.commands.executeCommand(`${moduleName}.sayHelloWorld`);
 
            const documentText = testDocument.getText();
            assert.ok(documentText.includes('README'), 'Should detect filename without extension');
        });
    });
 
    suite('Document Save Integration', () => {
        test('should handle document save events', async () => {
            const testContent = '// Initial content\n';
            const testFilePath = path.join(tempDir, 'savetest.js');
            await fs.writeFile(testFilePath, testContent);
 
            const uri = vscode.Uri.file(testFilePath);
            testDocument = await vscode.workspace.openTextDocument(uri);
            testEditor = await vscode.window.showTextDocument(testDocument);
 
            // Modify the document
            await testEditor.edit(editBuilder => {
                editBuilder.insert(new vscode.Position(1, 0), 'console.log("test");\n');
            });
 
            // Save should trigger the save event handler
            await assert.doesNotReject(async () => {
                if (testDocument) {
                    await testDocument.save();
                }
            }, 'Document save should be handled without errors');
        });
 
        test('should prevent concurrent save operations', async () => {
            const testContent = '// Concurrent save test\n';
            const testFilePath = path.join(tempDir, 'concurrent.js');
            await fs.writeFile(testFilePath, testContent);
 
            const uri = vscode.Uri.file(testFilePath);
            testDocument = await vscode.workspace.openTextDocument(uri);
            testEditor = await vscode.window.showTextDocument(testDocument);
 
            // Modify document
            await testEditor.edit(editBuilder => {
                editBuilder.insert(new vscode.Position(1, 0), 'const test = true;\n');
            });
 
            // Multiple rapid saves should be handled safely
            const savePromises = testDocument ? [
                testDocument.save(),
                testDocument.save(),
                testDocument.save()
            ] : [];
 
            await assert.doesNotReject(async () => {
                await Promise.all(savePromises);
            }, 'Concurrent saves should be handled safely');
        });
    });
 
    suite('Workspace Management', () => {
        test('should handle workspace without folders', () => {
            // Test workspace name refresh when no workspace folders exist
            assert.doesNotThrow(() => {
                // The refreshWorkspaceName function should handle empty workspace gracefully
                vscode.commands.executeCommand(`${moduleName}.injectHeader`);
            }, 'Should handle workspace without folders');
        });
 
        test('should detect workspace folders when available', () => {
            // This test depends on the actual workspace setup
            const workspaceFolders = vscode.workspace.workspaceFolders;
            if (workspaceFolders && workspaceFolders.length > 0) {
                assert.ok(workspaceFolders[0].name, 'Should have workspace folder name');
            }
        });
    });
 
    suite('Error Handling and Edge Cases', () => {
        test('should handle commands with invalid context gracefully', async () => {
            // Close all editors to test edge cases
            await vscode.commands.executeCommand('workbench.action.closeAllEditors');
 
            // Commands should handle the lack of active editor gracefully
            await assert.doesNotReject(async () => {
                await vscode.commands.executeCommand(`${moduleName}.refreshHeader`);
            }, 'Should handle refresh header without active document');
        });
 
        test('should handle file operations on read-only files', async () => {
            // Create a test file
            const testContent = '// Read-only test\n';
            const testFilePath = path.join(tempDir, 'readonly.js');
            await fs.writeFile(testFilePath, testContent);
 
            const uri = vscode.Uri.file(testFilePath);
            testDocument = await vscode.workspace.openTextDocument(uri);
            testEditor = await vscode.window.showTextDocument(testDocument);
 
            // Try to execute sayHelloWorld - should handle gracefully even if file becomes read-only
            await assert.doesNotReject(async () => {
                await vscode.commands.executeCommand(`${moduleName}.sayHelloWorld`);
            }, 'Should handle file operations gracefully');
        });
    });
 
    suite('Performance and Resource Management', () => {
        test('should complete activation within reasonable time', function () {
            this.timeout(5000); // 5 second timeout
 
            // Activation should be fast
            const extension = vscode.extensions.getExtension('asperguide.asperheader');
            if (extension && !extension.isActive) {
                return extension.activate();
            }
        });
 
        test('should handle multiple rapid command executions', async () => {
            // Execute multiple commands rapidly
            const commandPromises = [
                vscode.commands.executeCommand(`${moduleName}.helloWorld`),
                vscode.commands.executeCommand(`${moduleName}.displayRandomLogo`),
                vscode.commands.executeCommand(`${moduleName}.author`),
                vscode.commands.executeCommand(`${moduleName}.darling`)
            ];
 
            await assert.doesNotReject(async () => {
                await Promise.all(commandPromises);
            }, 'Should handle multiple rapid command executions');
        });
 
        test('should clean up resources properly', () => {
            // Test that deactivation and cleanup work properly
            assert.doesNotThrow(() => {
                deactivate();
            }, 'Resource cleanup should not throw errors');
        });
    });
 
    suite('Module Integration Tests', () => {
        test('should have properly initialized all modules', async () => {
            // These commands depend on module initialization
            const moduleCommands = [
                `${moduleName}.darling`,
                `${moduleName}.author`,
                `${moduleName}.displayRandomLogo`,
                `${moduleName}.injectHeader`
            ];
 
            for (const command of moduleCommands) {
                await assert.doesNotReject(async () => {
                    await vscode.commands.executeCommand(command);
                }, `Module integration test for ${command} should not fail`);
            }
        });
 
        test('should handle asset loading failures gracefully', async () => {
            // Commands should still execute even if some assets fail to load
            await assert.doesNotReject(async () => {
                await vscode.commands.executeCommand(`${moduleName}.displayRandomLogo`);
                await vscode.commands.executeCommand(`${moduleName}.darling`);
                await vscode.commands.executeCommand(`${moduleName}.author`);
            }, 'Should handle asset loading issues gracefully');
        });
    });
});