Rails Test Unit Test "II"

Unit Test

Unit test for model, mainly in the test model business rules, test model validation validates rules.

Unit test files are stored in the Test/unit folder, and the unit test file for user model is USER_TEST.RB.

Common commands

The structure of the test database is synchronized from the DB/SCHEMA.RB.

After the database structure changes, you need to execute this command to keep the structure of the test database consistent with the latest database structure.

Rake Db:test:prepare

There are other related orders.

How to write and conduct unit tests

When you use the Rails G model user or Rails G scaffold user, you automatically create the model corresponding unit test file in the Test/unit folder.
Test/unit/user_test.rb

Require ' Test_helper '
     
class Usertest < activesupport::testcase 
     
  Test "email invalid" do
    user = Users (: one 
    assert user.invalid?, "email invalid" End 
     
  test "email Invalid two" do
    User=users (: two) 
    assert User.invalid? 
  End 
     
  test ' password do not match '
    do user =users (: three) 
    assert user.invalid? 
  End 
     
  test ' All fields are valid ' do
    user=user.new (:nickname=> "nickname",:email=> "Sdf@13123.xo", 
                  :p assword=> "123456", 
                  :p assword_confirmation=> "123456") 
    assert user.valid? 
  End 
     
  test ' password and password_confirmation do not match ' do
    user = User.new (:nickname=> "asdf": email= > "Asdfasdf",:p assword=> "123", 
                                      :p assword_confirmation=> "234") 
    assert user.invalid? 
  End End 
     

App/model/user.rb

Class User < ActiveRecord::Base 
  Attr_accessible:email,: Nickname,:p assword,:p assword_confirmation 
  attr_ Accessor:p assword,:p assword_confirmation 
     
  validates:p assword,: Confirmation => true
  validates:p Assword_ Confirmation,:p resence => true
     
  validates:email,:p resence => true,: Uniqueness => True,: Format => {: WI Th =>/^\w+@\w+\.\w+$/}, 
                    : Length => {: Maximum =>} 
  validates:nickname,:p resence => true,: Lengt H => {: In =>1..30} end 

Test/fixtures/users.yml

One: 
  nickname:nickname1 
  email:invalidemail 
     
two: 
  nickname:nickname2 
  Email: invalideamil@ 
Three: 
  nickname:nickname3 
  email:validemail@123.com 
     
four: 
  nickname: Nickname4 
  email:validemail@baidu.com