Function expectElementToContainText

expectElementToContainText(
    page: any,
    selectorKey: string,
    textKey: string,
): Promise<void>
Gets an element by selector and asserts it contains the specified text.
Parameters
- page: any
- selectorKey: string
- textKey: string
Returns Promise<void>
Example
```
Then I pw get element by selector "error.message" to contain text "invalid credentials"
```
- Defined in backend/assertions/elements.ts:356