Function expectElementAttributeValue

expectElementAttributeValue(
    page: any,
    selectorKey: string,
    attrKey: string,
    valueKey: string,
): Promise<void>
Gets an element by selector and asserts it has the specified attribute with value.
Parameters
- page: any
- selectorKey: string
- attrKey: string
- valueKey: string
Returns Promise<void>
Example
```
Then I pw get element by selector "terms.link" to have attribute "href" with value "/terms-and-conditions"
```
- Defined in backend/assertions/elements.ts:379