cheat sheets.

assert_contains
assert_did_not_send_email 
assert_does_not_contain
assert_same_elements
assert_save
assert_sent_email
assert_valid
assert_xml_response

should_allow_values_for
should_assign_to
should_be_restful
should_belong_to
should_ensure_length_at_least
should_ensure_length_in_range
should_ensure_value_in_range
should_eventually
should_have_and_belong_to_many
should_have_class_methods
should_have_db_column
should_have_db_columns
should_have_index
should_have_indices
should_have_instance_methods
should_have_many
should_have_one
should_not_allow_values_for
should_not_assign_to
should_not_set_the_flash
should_only_allow_numeric_values_for 
should_protect_attributes
should_redirect_to
should_render_a_form
should_render_template
should_require_acceptance_of
should_require_attributes
should_require_unique_attributes
should_respond_with
should_respond_with_xml
should_respond_with_xml_for
should_set_the_flash_to