Fill an input field located by attribute (reverse syntax).
Step pattern
When (I |we )*fill in "([^"]*)?" for "([^"]*)?" by( its)*(?: "([^"]*)?")* (attribute|attr)Examples
Example #1
When I fill in "John Smith" for "#uname" by attrExample #2
When I fill in "John Smith" for "uname" by attrExample #3
And I fill in "1234" for "password" by "class" attrExample #4
And I fill in "John Smith" for "Your full name" by its "placeholder" attribute