ChangeEmailForm
      calls onChange
        ✔ when the email field changes
        ✔ when the password field changes
        ✔ when the email opt-in field changes
      calls onSubmit
        ✔ when the enter key is pressed in the email field
        ✔ when the enter key is pressed in the password field
        ✔ when the enter key is pressed on the opt-in field
        ✔ but not when other keys are pressed
        ✔ and not when the form is disabled
      when disabled
        ✔ the email field is disabled
        ✔ the password field is disabled
        ✔ the opt-in field is disabled
      focusOnAnError()
        ✔ does nothing if there are no validation errors
        ✔ focuses on the email field if there is an email validation error
        ✔ focuses on the password field if there is a password validation error
        ✔ focuses on the email field if there are both email and password validation errors

    ChangeEmailModal
      ✔ disables everything and shows save text when saving
      ✔ disables everything and shows save text when saving
      ✔ calls handleCancel when clicking the cancel button
      validation
        ✔ checks that email is present
        ✔ checks that email is valid
        ✔ checks that email is not the same as the current email
        ✔ reports email server errors
        ✔ checks that password is present
        ✔ reports password server errors
        ✔ disables the submit button when validation errors are present
        ✔ enables the submit button form passes validation
      changes clear server errors
        ✔ on email
        ✔ on password