Function createTestId

createTestId(...parts: string[]): string
Generate hierarchical test ID from parts
Parameters
- ...parts: string[]
  Array of ID parts to combine
Returns string
Formatted test ID in kebab-case
Example
```
createTestId('cost', 'estimation', 'button', 'submit')
// Returns: 'cost-estimation-button-submit'
```
Example
```
createTestId('widget', 'Security Level')
// Returns: 'widget-security-level'
```
- Defined in constants/testIds.ts:53