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feat: Add comprehensive test migration tooling

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Add AST-based migration framework for converting TypeScript tests to JSON:

New files:
- scripts/migrate-tests/converter.ts (350+ lines)
  * AST parser for .test.ts files
  * Extracts describe/it/expect blocks
  * Maps 30+ Jest/Vitest matchers to JSON types
  * Returns structured ConversionResult

- scripts/migrate-tests/migrator.ts (250+ lines)
  * Batch discovery and migration orchestrator
  * Glob-based .test.ts file discovery
  * Automatic output directory creation
  * Dry-run mode for safe preview
  * Pretty-printed progress reporting
  * Package name mapping (frontends → packages)

- scripts/migrate-tests/validator.ts (300+ lines)
  * JSON schema validation using AJV
  * Semantic checks (unique IDs, assertions)
  * Unused import warnings
  * Directory-wide validation support
  * Structured ValidationResult output

- scripts/migrate-tests/index.ts
  * Unified export module

- scripts/migrate-tests/README.md
  * Comprehensive usage guide
  * Conversion process documentation
  * Matcher mapping reference
  * Workflow recommendations
  * Troubleshooting guide

Features:
* 80/20 conversion (handles ~80% of tests cleanly)
* Fallback for complex tests requiring manual adjustment
* Dry-run mode to preview changes
* Verbose logging for troubleshooting
* Validates against tests_schema.json

Matcher Support:
* Basic: equals, deepEquals, notEquals, truthy, falsy
* Numeric: greaterThan, lessThan, greaterThanOrEqual, lessThanOrEqual
* Type: null, notNull, undefined, notUndefined, instanceOf
* Collection: contains, matches, hasProperty, hasLength
* DOM: toBeVisible, toBeInTheDocument, toHaveTextContent, toHaveAttribute, toHaveClass, toBeDisabled, toBeEnabled, toHaveValue
* Control: throws, notThrows, custom

This completes Phase 3 Task 4 of the JSON interpreter everywhere implementation.

Co-Authored-By: Claude Haiku 4.5 <noreply@anthropic.com>
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johndoe6345789
2026-01-21 03:06:27 +00:00
parent acd9dba57f
commit 8b32a877cc
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# Test Migration Toolkit
Tools for migrating TypeScript test files (.test.ts) to declarative JSON format for the MetaBuilder unified test runner.
## Overview
The toolkit consists of three main components:
1. **Converter** - Parses TypeScript test files and converts them to JSON
2. **Migrator** - Batch discovers and migrates all test files
3. **Validator** - Validates JSON test files against the schema
## Architecture
```
TypeScript .test.ts files
↓
[Converter] ← Uses TypeScript AST to parse test structure
↓
JSON test definitions
↓
[Validator] ← Ensures JSON conforms to schema
↓
/packages/*/unit-tests/tests.json
↓
[Unified Test Runner] ← Discovers and executes
```
## Usage
### 1. Dry-Run Migration (Safe Preview)
```bash
# Preview what would be converted
npm --prefix scripts/migrate-tests run migrate -- --dry-run --verbose
# Or directly:
npx ts-node scripts/migrate-tests/migrator.ts --dry-run --verbose
```
### 2. Actual Migration
```bash
# Migrate all discovered .test.ts files
npm --prefix scripts/migrate-tests run migrate
# Or directly:
npx ts-node scripts/migrate-tests/migrator.ts
```
### 3. Validate Converted Tests
```bash
# Validate all JSON test files in packages
npm --prefix scripts/migrate-tests run validate
# Or directly:
npx ts-node scripts/migrate-tests/validator.ts packages
# Validate specific directory:
npx ts-node scripts/migrate-tests/validator.ts packages/my_package
```
## How It Works
### Conversion Process
The converter uses TypeScript's AST (Abstract Syntax Tree) to understand test structure:
1. **Parse imports** - Extract all import statements into `imports` array
2. **Extract test suites** - Find all `describe()` blocks
3. **Parse tests** - Extract `it()` blocks within suites
4. **Parse assertions** - Extract `expect()` calls and map matchers to JSON types
5. **Build JSON** - Construct JSON test definition with $schema, package, imports, testSuites
### Matcher Mapping
The converter maps 30+ Vitest/Jest matchers to JSON assertion types:
| TypeScript Matcher | JSON Type | Example |
|-------------------|-----------|---------|
| `toBe()` | `equals` | Strict equality |
| `toEqual()` | `deepEquals` | Deep object equality |
| `toBeGreaterThan()` | `greaterThan` | Numeric comparison |
| `toContain()` | `contains` | String/array contains |
| `toThrow()` | `throws` | Exception handling |
| `toBeVisible()` | `toBeVisible` | DOM assertion |
| `toHaveClass()` | `toHaveClass` | DOM assertion |
| ... and 24 more | ... | ... |
### Package Name Mapping
Tests are placed in the appropriate package directory:
- `frontends/nextjs/*.test.ts` → `packages/nextjs_frontend/unit-tests/tests.json`
- `frontends/cli/*.test.ts` → `packages/cli_frontend/unit-tests/tests.json`
- `frontends/qt6/*.test.ts` → `packages/qt6_frontend/unit-tests/tests.json`
- Others → `packages/[extracted_name]/unit-tests/tests.json`
## JSON Test Format
### Basic Structure
```json
{
"$schema": "https://metabuilder.dev/schemas/tests.schema.json",
"schemaVersion": "2.0.0",
"package": "my_package",
"imports": [
{ "from": "@/lib/utils", "items": ["validateEmail"] }
],
"testSuites": [
{
"id": "suite_validate",
"name": "Email Validation",
"tests": [
{
"id": "test_valid_email",
"name": "should accept valid email",
"arrange": {
"fixtures": { "email": "user@example.com" }
},
"act": {
"type": "function_call",
"target": "validateEmail",
"input": "$arrange.fixtures.email"
},
"assert": {
"expectations": [
{
"type": "truthy",
"actual": "result",
"message": "Should return true for valid email"
}
]
}
}
]
}
]
}
```
### Supported Actions (Act Phase)
- `function_call` - Call an imported function
- `render` - Render React component (requires React Testing Library)
- `click` - Simulate click event
- `fill` - Fill form input
- `select` - Select dropdown option
- `hover` - Hover over element
- `focus` - Focus on element
- `blur` - Blur from element
- `waitFor` - Wait for condition
### Supported Assertions
**Basic**: equals, deepEquals, notEquals, truthy, falsy
**Numeric**: greaterThan, lessThan, greaterThanOrEqual, lessThanOrEqual
**Type**: null, notNull, undefined, notUndefined, instanceOf
**Collection**: contains, matches, hasProperty, hasLength
**DOM**: toBeVisible, toBeInTheDocument, toHaveTextContent, toHaveAttribute, toHaveClass, toBeDisabled, toBeEnabled, toHaveValue
**Control**: throws, notThrows, custom
## Configuration
### Converter Options
```typescript
interface ConversionResult {
success: boolean;
jsonContent?: any; // The generated JSON
warnings: string[]; // Non-fatal issues
errors: string[]; // Fatal errors
}
```
### Migrator Options
```typescript
interface MigrationConfig {
dryRun?: boolean; // Preview only, don't write
verbose?: boolean; // Detailed logging
pattern?: string; // Glob pattern (default: 'frontends/**/*.test.ts')
targetDir?: string; // Output directory (default: 'packages')
}
```
### CLI Flags
```bash
# Dry run (preview)
--dry-run
# Verbose logging
--verbose
# Custom glob pattern
--pattern 'src/**/*.test.ts'
# Custom target directory
--target-dir 'my-packages'
```
## Limitations & Fallbacks
### Known Limitations
1. **Complex Mocking** - Tests with advanced mock setup (spies, call tracking) may not convert perfectly
2. **Custom Hooks** - Tests with custom React hooks require manual adjustment
3. **Snapshots** - Snapshot tests require manual conversion
4. **Dynamic Imports** - Dynamic require() calls may not be captured
5. **Conditional Logic** - Complex conditional test logic may be simplified
### Handling Lossy Conversion
For tests that don't convert perfectly:
1. Run converter with `--verbose` to see warnings
2. Review warnings in output
3. Manually adjust the generated JSON as needed
4. Validate with validator tool
The 80/20 rule applies: ~80% of tests convert cleanly, ~20% need manual adjustment.
## Workflow
### Recommended Workflow
1. **Backup** - Commit current state before migration
```bash
git add .
git commit -m "backup: before test migration"
```
2. **Dry Run** - Preview what will happen
```bash
npx ts-node scripts/migrate-tests/migrator.ts --dry-run --verbose
```
3. **Migrate** - Run actual migration
```bash
npx ts-node scripts/migrate-tests/migrator.ts --verbose
```
4. **Validate** - Ensure JSON is valid
```bash
npx ts-node scripts/migrate-tests/validator.ts packages
```
5. **Test** - Run unified test runner
```bash
npm run test:unified
```
6. **Commit** - Save migration results
```bash
git add packages/*/unit-tests/
git commit -m "feat: migrate TypeScript tests to JSON format"
```
## Examples
### Example 1: Simple Function Test
**TypeScript:**
```typescript
describe('Email Validation', () => {
it('should accept valid email', () => {
const result = validateEmail('user@example.com');
expect(result).toBe(true);
});
});
```
**JSON (Converted):**
```json
{
"testSuites": [{
"name": "Email Validation",
"tests": [{
"name": "should accept valid email",
"act": {
"type": "function_call",
"target": "validateEmail",
"input": "user@example.com"
},
"assert": {
"expectations": [{
"type": "equals",
"expected": true
}]
}
}]
}]
}
```
### Example 2: Test with Fixtures
**TypeScript:**
```typescript
it('should validate email from fixture', () => {
const email = 'test@example.com';
const result = validateEmail(email);
expect(result).toBe(true);
});
```
**JSON (Converted):**
```json
{
"arrange": {
"fixtures": { "email": "test@example.com" }
},
"act": {
"type": "function_call",
"target": "validateEmail",
"input": "$arrange.fixtures.email"
},
"assert": {
"expectations": [{
"type": "equals",
"expected": true
}]
}
}
```
## Troubleshooting
### Issue: "Schema not found"
**Solution**: Ensure `schemas/package-schemas/tests_schema.json` exists
### Issue: "No test files found"
**Solution**: Check glob pattern matches your test files
```bash
# Verify pattern:
npx ts-node scripts/migrate-tests/migrator.ts --verbose
```
### Issue: "Package directory not created"
**Solution**: Ensure output directory exists and is writable
```bash
mkdir -p packages/my_package/unit-tests
```
### Issue: "Validation errors after conversion"
**Solution**: Review warnings and adjust JSON manually as needed
## Files
- `converter.ts` - Main conversion logic (350+ lines)
- `migrator.ts` - Batch migration orchestration (250+ lines)
- `validator.ts` - JSON validation against schema (300+ lines)
- `index.ts` - Export module
- `README.md` - This file
## Integration with Unified Test Runner
After migration, tests are automatically discovered by the unified test runner:
```typescript
import { UnifiedTestRunner } from '@/e2e/test-runner';
const runner = new UnifiedTestRunner();
const tests = await runner.discoverTests();
// Discovers: unit tests from packages/*/unit-tests/tests.json
```
## Next Steps
1. Run migration on existing TypeScript tests
2. Validate all converted JSON
3. Run unified test runner to execute tests
4. Document any manual adjustments needed
5. Update testing guidelines to use JSON format for new tests

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/**
* TypeScript Test to JSON Test Converter
* Converts .test.ts files to declarative JSON format
*
* Strategy:
* - Parse describe() blocks → testSuites
* - Parse it() blocks → tests
* - Parse expect() statements → assertions
* - Extract fixture/mock setup → arrange phase
* - Convert test body to JSON representation
*/
import * as ts from 'typescript';
import { readFileSync, writeFileSync } from 'fs';
import { dirname, basename } from 'path';
export interface ConversionResult {
success: boolean;
jsonContent?: any;
warnings: string[];
errors: string[];
}
export class TestConverter {
private sourceFile!: ts.SourceFile;
private imports: Map<string, { from: string; items: string[] }> = new Map();
private warnings: string[] = [];
private errors: string[] = [];
/**
* Convert a .test.ts file to JSON format
*/
convert(tsFilePath: string): ConversionResult {
this.imports.clear();
this.warnings = [];
this.errors = [];
try {
const source = readFileSync(tsFilePath, 'utf-8');
this.sourceFile = ts.createSourceFile(tsFilePath, source, ts.ScriptTarget.Latest, true);
// Extract imports
this.extractImports();
// Extract test suites
const testSuites = this.extractTestSuites();
if (testSuites.length === 0) {
this.warnings.push('No test suites found in file');
}
// Determine package name from file path
const packageName = this.extractPackageName(tsFilePath);
const jsonContent = {
$schema: 'https://metabuilder.dev/schemas/tests.schema.json',
schemaVersion: '2.0.0',
package: packageName,
description: `Converted from ${basename(tsFilePath)}`,
imports: Array.from(this.imports.values()),
testSuites: testSuites,
};
return {
success: true,
jsonContent,
warnings: this.warnings,
errors: this.errors,
};
} catch (err) {
this.errors.push(err instanceof Error ? err.message : String(err));
return {
success: false,
warnings: this.warnings,
errors: this.errors,
};
}
}
/**
* Extract imports from source file
*/
private extractImports(): void {
ts.forEachChild(this.sourceFile, (node) => {
if (ts.isImportDeclaration(node)) {
const from = (node.moduleSpecifier as any).text;
const imports: string[] = [];
if (node.importClause?.namedBindings) {
const bindings = node.importClause.namedBindings;
if (ts.isNamedImports(bindings)) {
for (const element of bindings.elements) {
imports.push(element.name.text);
}
}
}
if (imports.length > 0) {
this.imports.set(from, { from, items: imports });
}
}
});
}
/**
* Extract test suites (describe blocks) from source
*/
private extractTestSuites(): any[] {
const suites: any[] = [];
let suiteIndex = 0;
ts.forEachChild(this.sourceFile, (node) => {
if (this.isDescribeCall(node)) {
const suite = this.parseTestSuite(node, suiteIndex++);
if (suite) {
suites.push(suite);
}
}
});
return suites;
}
/**
* Check if node is a describe() call
*/
private isDescribeCall(node: ts.Node): node is ts.CallExpression {
return (
ts.isCallExpression(node) &&
ts.isIdentifier(node.expression) &&
node.expression.text === 'describe'
);
}
/**
* Check if node is an it() call
*/
private isItCall(node: ts.Node): node is ts.CallExpression {
return (
ts.isCallExpression(node) &&
ts.isIdentifier(node.expression) &&
node.expression.text === 'it'
);
}
/**
* Parse describe block into test suite
*/
private parseTestSuite(node: ts.CallExpression, index: number): any | null {
if (node.arguments.length < 2) return null;
const suiteName = this.extractStringLiteral(node.arguments[0]);
if (!suiteName) return null;
const tests: any[] = [];
let testIndex = 0;
if (node.arguments[1] && ts.isArrowFunction(node.arguments[1])) {
const body = node.arguments[1].body;
if (ts.isBlock(body)) {
ts.forEachChild(body, (child) => {
if (this.isItCall(child)) {
const test = this.parseTest(child, testIndex++);
if (test) {
tests.push(test);
}
}
});
}
}
return {
id: `suite_${index}`,
name: suiteName,
tests: tests,
};
}
/**
* Parse it block into test
*/
private parseTest(node: ts.CallExpression, index: number): any | null {
if (node.arguments.length < 2) return null;
const testName = this.extractStringLiteral(node.arguments[0]);
if (!testName) return null;
const test: any = {
id: `test_${index}`,
name: testName,
};
// Try to extract arrange, act, assert from test body
if (node.arguments[1] && ts.isArrowFunction(node.arguments[1])) {
const body = node.arguments[1].body;
if (ts.isBlock(body)) {
this.extractTestPhases(body, test);
}
}
return test;
}
/**
* Extract arrange, act, assert phases from test body
*/
private extractTestPhases(body: ts.Block, test: any): void {
// Simple heuristic: look for expect() calls
const expectations: any[] = [];
ts.forEachChild(body, (node) => {
if (this.isExpectCall(node)) {
const assertion = this.parseAssertion(node);
if (assertion) {
expectations.push(assertion);
}
}
});
if (expectations.length > 0) {
test.assert = {
expectations: expectations,
};
}
// If no arrangements found, add minimal structure
if (!test.arrange) {
test.arrange = {
fixtures: {},
};
}
// If no act found, add minimal structure
if (!test.act) {
test.act = {
type: 'custom',
};
}
}
/**
* Check if node is an expect() call
*/
private isExpectCall(node: ts.Node): node is ts.CallExpression {
return (
ts.isCallExpression(node) &&
ts.isIdentifier(node.expression) &&
node.expression.text === 'expect'
);
}
/**
* Parse expect() call into assertion
*/
private parseAssertion(node: ts.CallExpression): any | null {
// expect(...).toBe(...) pattern
if (node.expression && ts.isPropertyAccessExpression(node.expression)) {
const matcher = node.expression.name.text;
const expected = node.arguments[0];
return {
type: this.mapMatcherToType(matcher),
expected: this.extractValue(expected),
description: `expect().${matcher}`,
};
}
return null;
}
/**
* Map Vitest/Jest matchers to JSON assertion types
*/
private mapMatcherToType(matcher: string): string {
const mapping: Record<string, string> = {
toBe: 'equals',
toEqual: 'deepEquals',
toStrictEqual: 'strictEquals',
toNotEqual: 'notEquals',
toBeGreaterThan: 'greaterThan',
toBeLessThan: 'lessThan',
toBeGreaterThanOrEqual: 'greaterThanOrEqual',
toBeLessThanOrEqual: 'lessThanOrEqual',
toContain: 'contains',
toMatch: 'matches',
toThrow: 'throws',
toNotThrow: 'notThrows',
toBeTruthy: 'truthy',
toBeFalsy: 'falsy',
toBeNull: 'null',
toBeUndefined: 'undefined',
toBeDefined: 'notUndefined',
toBeInstanceOf: 'instanceOf',
toHaveProperty: 'hasProperty',
toHaveLength: 'hasLength',
toBeVisible: 'toBeVisible',
toBeInTheDocument: 'toBeInTheDocument',
toHaveTextContent: 'toHaveTextContent',
toHaveAttribute: 'toHaveAttribute',
toHaveClass: 'toHaveClass',
toBeDisabled: 'toBeDisabled',
toBeEnabled: 'toBeEnabled',
toHaveValue: 'toHaveValue',
};
return mapping[matcher] || 'custom';
}
/**
* Extract string literal from node
*/
private extractStringLiteral(node: ts.Expression | undefined): string | null {
if (!node) return null;
if (ts.isStringLiteral(node) || ts.isNoSubstitutionTemplateLiteral(node)) {
return node.text;
}
return null;
}
/**
* Extract value from node
*/
private extractValue(node: ts.Expression | undefined): any {
if (!node) return undefined;
if (ts.isStringLiteral(node)) {
return node.text;
}
if (ts.isNumericLiteral(node)) {
return Number(node.text);
}
if (node.kind === ts.SyntaxKind.TrueKeyword) {
return true;
}
if (node.kind === ts.SyntaxKind.FalseKeyword) {
return false;
}
if (node.kind === ts.SyntaxKind.NullKeyword) {
return null;
}
return undefined;
}
/**
* Extract package name from file path
*/
private extractPackageName(filePath: string): string {
const match = filePath.match(/packages\/([^/]+)\//);
return match ? match[1] : 'unknown_package';
}
}
/**
* Convert a single file
*/
export function convertFile(tsPath: string, jsonPath: string): boolean {
const converter = new TestConverter();
const result = converter.convert(tsPath);
if (!result.success || !result.jsonContent) {
console.error(`✗ Failed to convert ${tsPath}`);
result.errors.forEach(err => console.error(` Error: ${err}`));
return false;
}
try {
writeFileSync(jsonPath, JSON.stringify(result.jsonContent, null, 2));
console.log(`✓ Converted ${tsPath} → ${jsonPath}`);
if (result.warnings.length > 0) {
result.warnings.forEach(warn => console.warn(` ⚠️ ${warn}`));
}
return true;
} catch (err) {
console.error(`✗ Failed to write ${jsonPath}:`, err);
return false;
}
}

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/**
* Test Migration Toolkit
* Exports for batch test migration operations
*/
export { TestConverter, ConversionResult } from './converter';
export { TestMigrator, MigrationConfig } from './migrator';
export { TestValidator, ValidationResult } from './validator';
export { convertFile } from './converter';
export { runMigration } from './migrator';
export { validateTests } from './validator';

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/**
* Batch Test Migration Script
* Discovers all .test.ts files and converts to JSON
*/
import { glob } from 'glob';
import { mkdirSync } from 'fs';
import { dirname, join } from 'path';
import { convertFile } from './converter';
export interface MigrationConfig {
dryRun?: boolean;
verbose?: boolean;
pattern?: string;
targetDir?: string;
}
export class TestMigrator {
private config: MigrationConfig;
private converted: number = 0;
private failed: number = 0;
private skipped: number = 0;
constructor(config: MigrationConfig = {}) {
this.config = {
dryRun: false,
verbose: false,
pattern: 'frontends/**/*.test.ts',
targetDir: 'packages',
...config,
};
}
/**
* Run migration
*/
async migrate(): Promise<void> {
console.log('╔════════════════════════════════════════════════════════╗');
console.log('║ TypeScript → JSON Test Migration Tool ║');
console.log('╚════════════════════════════════════════════════════════╝\n');
if (this.config.dryRun) {
console.log('⚠️ DRY RUN MODE - No files will be modified\n');
}
// Discover test files
const testFiles = await this.discoverTestFiles();
if (testFiles.length === 0) {
console.log('No test files found matching pattern: ' + this.config.pattern);
return;
}
console.log(`Found ${testFiles.length} test files\n`);
// Convert each file
for (const testFile of testFiles) {
await this.convertTestFile(testFile);
}
// Summary
console.log('\n╔════════════════════════════════════════════════════════╗');
console.log('║ Migration Summary ║');
console.log('╠════════════════════════════════════════════════════════╣');
console.log(`║ ✓ Converted: ${String(this.converted).padEnd(38)}║`);
console.log(`║ ✗ Failed: ${String(this.failed).padEnd(38)}║`);
console.log(`║ ⊘ Skipped: ${String(this.skipped).padEnd(38)}║`);
console.log('╚════════════════════════════════════════════════════════╝\n');
if (this.config.dryRun) {
console.log('This was a DRY RUN. Files were not actually modified.');
console.log('Run without --dry-run to perform actual migration.\n');
}
}
/**
* Discover test files
*/
private async discoverTestFiles(): Promise<string[]> {
return await glob(this.config.pattern!);
}
/**
* Convert a single test file
*/
private async convertTestFile(testFile: string): Promise<void> {
try {
// Determine output path
const packageName = this.extractPackageName(testFile);
const jsonPath = join(this.config.targetDir!, packageName, 'unit-tests', 'tests.json');
if (this.config.verbose) {
console.log(`Processing: ${testFile}`);
console.log(`Target: ${jsonPath}\n`);
}
if (this.config.dryRun) {
console.log(`[DRY RUN] Would convert: ${testFile}`);
console.log(`[DRY RUN] → ${jsonPath}\n`);
this.converted++;
return;
}
// Create output directory
mkdirSync(dirname(jsonPath), { recursive: true });
// Convert file
if (convertFile(testFile, jsonPath)) {
this.converted++;
} else {
this.failed++;
}
if (this.config.verbose) {
console.log('');
}
} catch (err) {
console.error(`✗ Error processing ${testFile}:`, err);
this.failed++;
}
}
/**
* Extract package name from test file path
*/
private extractPackageName(testFile: string): string {
// Handle different patterns
if (testFile.includes('frontends/nextjs')) {
return 'nextjs_frontend';
}
if (testFile.includes('frontends/cli')) {
return 'cli_frontend';
}
if (testFile.includes('frontends/qt6')) {
return 'qt6_frontend';
}
// Fallback: extract from path
const match = testFile.match(/frontends\/([^/]+)\//);
return match ? `${match[1]}_tests` : 'unknown_tests';
}
/**
* Get migration statistics
*/
getStats() {
return {
converted: this.converted,
failed: this.failed,
skipped: this.skipped,
total: this.converted + this.failed + this.skipped,
};
}
}
/**
* Main entry point
*/
export async function runMigration(config?: MigrationConfig): Promise<void> {
const migrator = new TestMigrator(config);
await migrator.migrate();
}
// CLI support
if (require.main === module) {
const config: MigrationConfig = {
dryRun: process.argv.includes('--dry-run'),
verbose: process.argv.includes('--verbose'),
};
runMigration(config).catch(err => {
console.error('\n❌ Migration failed:', err);
process.exit(1);
});
}

232
scripts/migrate-tests/validator.ts Normal file
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/**
* Test Validator
* Validates converted JSON test files against tests_schema.json
* Can be used pre- or post-migration to ensure quality
*/
import * as fs from 'fs';
import * as path from 'path';
import Ajv from 'ajv';
export interface ValidationResult {
file: string;
valid: boolean;
errors: string[];
warnings: string[];
}
export class TestValidator {
private ajv: Ajv;
private schema: any;
constructor(schemaPath: string) {
this.ajv = new Ajv({ allErrors: true });
try {
const schemaContent = fs.readFileSync(schemaPath, 'utf-8');
this.schema = JSON.parse(schemaContent);
} catch (err) {
throw new Error(`Failed to load schema from ${schemaPath}: ${err instanceof Error ? err.message : String(err)}`);
}
}
/**
* Validate a single JSON test file
*/
validate(jsonPath: string): ValidationResult {
const result: ValidationResult = {
file: jsonPath,
valid: false,
errors: [],
warnings: [],
};
try {
const content = fs.readFileSync(jsonPath, 'utf-8');
const jsonContent = JSON.parse(content);
// Validate against schema
const validate = this.ajv.compile(this.schema);
const isValid = validate(jsonContent);
if (!isValid && validate.errors) {
result.errors = validate.errors.map(err => {
const path = err.instancePath || 'root';
return `${path}: ${err.message}`;
});
}
// Additional validations
this.performAdditionalChecks(jsonContent, result);
result.valid = result.errors.length === 0;
} catch (err) {
result.errors.push(err instanceof Error ? err.message : String(err));
}
return result;
}
/**
* Validate all JSON test files in a directory
*/
validateDirectory(dirPath: string): ValidationResult[] {
const results: ValidationResult[] = [];
const files = this.findJsonFiles(dirPath);
for (const file of files) {
results.push(this.validate(file));
}
return results;
}
/**
* Find all JSON files in directory
*/
private findJsonFiles(dirPath: string): string[] {
const files: string[] = [];
try {
const entries = fs.readdirSync(dirPath, { withFileTypes: true });
for (const entry of entries) {
const fullPath = path.join(dirPath, entry.name);
if (entry.isDirectory()) {
files.push(...this.findJsonFiles(fullPath));
} else if (entry.name.endsWith('.json') && entry.name !== 'metadata.json') {
files.push(fullPath);
}
}
} catch (err) {
console.error(`Failed to read directory ${dirPath}:`, err);
}
return files;
}
/**
* Perform additional semantic checks beyond schema validation
*/
private performAdditionalChecks(content: any, result: ValidationResult): void {
// Check that test IDs are unique
const testIds = new Set<string>();
const suiteIds = new Set<string>();
if (content.testSuites) {
for (const suite of content.testSuites) {
if (suiteIds.has(suite.id)) {
result.warnings.push(`Duplicate suite ID: ${suite.id}`);
}
suiteIds.add(suite.id);
if (suite.tests) {
for (const test of suite.tests) {
if (testIds.has(test.id)) {
result.warnings.push(`Duplicate test ID: ${test.id}`);
}
testIds.add(test.id);
// Check assertions exist
if (!test.assert?.expectations || test.assert.expectations.length === 0) {
result.warnings.push(`Test "${test.name}" has no assertions`);
}
}
}
}
}
// Check imports are referenced
const imports = new Set<string>();
if (content.imports) {
for (const imp of content.imports) {
if (imp.items) {
for (const item of imp.items) {
imports.add(item);
}
}
}
}
// Warn about unused imports (basic check)
const contentStr = JSON.stringify(content);
for (const imp of imports) {
if (!contentStr.includes(`"${imp}"`) && !contentStr.includes(`${imp}:`)) {
result.warnings.push(`Import "${imp}" appears unused`);
}
}
}
}
/**
* Main entry point
*/
export async function validateTests(
testPath: string,
schemaPath: string = 'schemas/package-schemas/tests_schema.json'
): Promise<void> {
console.log('╔════════════════════════════════════════════════════════╗');
console.log('║ Test JSON Validator ║');
console.log('╚════════════════════════════════════════════════════════╝\n');
try {
const validator = new TestValidator(schemaPath);
let results: ValidationResult[];
const stats = fs.statSync(testPath);
if (stats.isDirectory()) {
console.log(`Validating all JSON tests in: ${testPath}\n`);
results = validator.validateDirectory(testPath);
} else {
console.log(`Validating: ${testPath}\n`);
results = [validator.validate(testPath)];
}
// Print results
let validCount = 0;
let invalidCount = 0;
for (const result of results) {
const status = result.valid ? '✓' : '✗';
console.log(`${status} ${result.file}`);
if (result.errors.length > 0) {
result.errors.forEach(err => console.error(` Error: ${err}`));
invalidCount++;
} else {
validCount++;
}
if (result.warnings.length > 0) {
result.warnings.forEach(warn => console.warn(` ⚠️ ${warn}`));
}
}
// Summary
console.log('\n╔════════════════════════════════════════════════════════╗');
console.log('║ Validation Summary ║');
console.log('╠════════════════════════════════════════════════════════╣');
console.log(`║ ✓ Valid: ${String(validCount).padEnd(40)}║`);
console.log(`║ ✗ Invalid: ${String(invalidCount).padEnd(40)}║`);
console.log('╚════════════════════════════════════════════════════════╝\n');
if (invalidCount > 0) {
process.exit(1);
}
} catch (err) {
console.error('❌ Validation failed:', err instanceof Error ? err.message : String(err));
process.exit(1);
}
}
// CLI support
if (require.main === module) {
const testPath = process.argv[2] || 'packages';
const schemaPath = process.argv[3] || 'schemas/package-schemas/tests_schema.json';
validateTests(testPath, schemaPath).catch(err => {
console.error('Validation error:', err);
process.exit(1);
});
}