Feature: Sign in
Background:
Given a user with email "user@example.com" and password "password"
Scenario: with valid credentials
When I try to sign in with email "user@example.com" and password "password"
Then I am signed in as "user@example.com"
And I see the main page
Scenario: with invalid email
When I try to sign in with email "foo@example.com" and password "password"
Then I fail to sign in
Scenario: with invalid password
When I try to sign in with email "user@example.com" and password "foobar"
