Assertion: String Contains
Asserts that a string contains a given substring
Example
this.assert.stringContains(needle, haystack);
Conditions
Passes if needle is a substring of haystack
Fails if needle is not a substring of haystack
Parameters
| Name | Description | 
|---|---|
| needle | the substring to find | 
| haystack | the string to search | 
| message | (optional) message to display on failure |