slide1 l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Selenium-Browser-Based-Automated-Testing-for-Grails-Apps PowerPoint Presentation
Download Presentation
Selenium-Browser-Based-Automated-Testing-for-Grails-Apps

Loading in 2 Seconds...

play fullscreen
1 / 27

Selenium-Browser-Based-Automated-Testing-for-Grails-Apps - PowerPoint PPT Presentation


  • 2437 Views
  • Uploaded on

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Selenium-Browser-Based-Automated-Testing-for-Grails-Apps' - buildlackey


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

- Selenium -

Browser-Based Automated Testing of Grails Apps

  • Presented By
  • Chris Bedford
  • Founder & Lackey at Large
  • Build Lackey Labs
  • Company Overview
    • Founded 2008
    • Services
    • Release engineering & Build/Test Automation for Java Environments
    • Spring/Hibernate & Groovy/Grails App Development
    • Training: Spring/Groovy/Grails & Build/Test Automation Technologies
    • Employees
    • Chris Bedford
    • Mike Jackson
slide2

Agenda

KEY

TAKE-AWAYS

Different Ways To Test a Grails App

Unit, Integration, Functional

Selenium

Demo of IDE

Architecture

Alternatives (Canoo WebTest)

Automating Testing Using Selenium

Maven

Cargo

Viewing Test Results

Lab 1 – maven project

Alternative Automation Strategies

grails-selenium-rc plugin

Lab 2 – using selenium-rc plugin

How to write functional tests with

Selenium

How to set up

Selenium Testing

On Grails Apps

In Continuous

Integration

The long way – using Maven

The fast way, using the grails- selenium-rc plug-in

  • Handy to know
  • if you are working
  • with non-Grails web apps
slide3

Different Ways To Test a Grails App

Package or class level scope

  • Unit
  • Unit Tests are created and run developer and run using framework like Junit or TestNG
  • test class or package functionality in isolation
  • heavy use of mocks and stubs
  • tests should execute quickly and be run often to catch problems early on
  • Integration
  • Application is spun up within Grails running on top of servlet container
  • Uses actual underlying framework instead of mocks
  • Slower to run due to overhead of spinning up Grails
  • Functional Testing
  • Run application in container
  • Exercise functionality via a client side agent that executes Javascript.
    • Agent could be either:
    • your actual target browser (Firefox, IE, etc.) [Selenium's approach]
    • a Javascript engine embedded into test framework [CanooWebtest's approach]

Mock http requests

increasingly

coarse

grained

components

under

test

Mock Hibernate Functionality

Client requests from same process

Launch Grails container

Real Hibernate

Real http requests

Separate client

slide4

Manual Steps Involved In Running Selenium

  • Before running Selenium Functional Tests we need to
    • Compile classes
    • Run unit and integration tests
      • bail on functional tests if we catch problems with lighter weight tests
    • Package .war file
    • Install the container in which we want to run the .war (optional)
    • Deploy the .war to the container (optional – can just do ‘grails run-app’)
    • Launch target browser
    • Launch Selenium on desired test suite
slide8

Saving New or Modified Selenium Tests

Individual tests referenced by the suite are recorded using their paths relative to the suite. For simplicity put your suite and all tests in the same directory (to start)

slide9

Selenium Components

  • Selenium IDE
  • Selenese Commands
    • Enable test author to
      • simulate navigation, clicks
      • Make assertions about expected responses
  • Selenium RC
  • Client side library that enables you to program more sophistication into your tests than the IDE allows (conditions, looping, error handling)
  • The Selenium Server which launches and kills browsers, interprets and runs the Selenese commands passed from the test program, and acts as an HTTP proxy,
slide10

Selenium Client Side Library & Server In Action

(javascript)

(client side java script /

Ajax portion of application under

Test – originates from here )

HTTP

Application

under test

(server side)

Selenium-server.jar

Reports back results of test to client

HTTP

Source:

http://seleniumhq.org/docs/05_selenium_rc.html

slide11

Selenium RC Server Acting As Proxy To Avoid Same Origin Policy Restrictions

4) Server interprets the command and then triggers the corresponding javascript execution to execute that command within the browser (say open page in app under test)s

What happens when a test suite starts ?

Proxy forwards request

to app

server

6)

5) Request to open the page is routed through proxy server

2) Selenium-RC server launches a browser (or reuses an old one) with URL that injects Selenium-Core’s javascript into browser-loaded web page.

7)

App server returns

response

1) client/driver establishes

connection w.selenium-RC

3) client-driver passes a Selenese command to the server e.g.: open command

slide12

Functional Test Alternatives: Canoo vs Selenium

  • Canoo Web Test
  • built on HtmlUnit
  • pros:
    • excellent test reporting allows you to pin point errors in test very easily.
    • faster to run (no browser spin up overhead)
    • better support for non HTML content (like spread sheets)
  • cons:
    • Weaker IDE (for test recording and playback)
    • develop tests in Ant or Gant only
  • Selenium
  • pros:
    • develop tests in HTML markup or 3 GL's like Java, Ruby, etc.
    • run test in actual browser
    • vs.embedded Javascript engine used by NO popular browser platform
  • cons:
    • slower to start.
    • see 'pros' listed Canoo
slide13

Canoo Web Test Reports

Canoo's reports show overall test results and let you drill down into any test

slide14

Canoo Web Test Reports (cont.)

Click to review a copy of the response HTML page corresponding to the first test step that failed

slide15

Gluing together the steps in your build process

  • Before running Functional Tests need to
    • Compile
    • Run unit and integration tests
      • bail on functional tests if we catch problems with lighter weight tests
    • Package .war file
    • Install the container in which we want to run the .war (optional)
    • Deploy the .war to the container (optional – can just do ‘grails run-app’)
    • Launch your target browser
    • Launch Selenium on your desired test suite
  • To automate this process you can use
      • ant
      • maven
      • Groovy/Gant scripts
      • Gradle
    • Our example uses Maven
    • (demo)
    • (tour of pom.xml files that wire together our build steps)
slide16

Download

And Install

Tomcat

deploy

Compile

Unit Test

Integration Test

Package .war file

slide17

Maven Basics

  • Convention over configuration
    • Standardizes where things live and what they are named
    • Lets you know where to look for the things you need…
        • and what to do when you find them
  • Project Object Model (pom.xml) specifies the complete ‘recipe for your build’
    • what artifact type are your producing ? (the name, the version…)
    • what are the dependencies (things you need) to produce that artifact ?
    • What plug-ins activate at what phases in the build life cycle ?
  • Shared Repository for storing artifacts that result from a build
    • Convention for naming artifacts
  • Build Life Cycle
    • each project is typically responsible for producing a distinct artifact (a.k.a. packaging) type
        • .jar, .war, .ear, etc.
    • each packaging type has an associated life cycle (ordered set of build phases)
  • Nested build project (module) structure
    • overall driver for your build project lives at top level of a directory hierarchy
    • sub-modules underneath the parent can be either
      • individual components of your product …or….
      • key phases in your build
slide18

Maven Nested Module Structure, Dependencies and Shared Repo

Maven Repository

org.example:demo:1.1

Lives in $HOME/.m2/repostitory

or

/Docuemts and Settings/<user>/.m2/repository

mvn install

declares a

a dependency on

org.example:demo:1.1

declares the artifact it produces to be

org.example:demo:1.1

slide20

Maven pom.xml – Dependency Relationships

Maven Repository

org.example:demo:1.1

slide21

Hooking Maven Plug-ins Maven Into the Build Life Cycle

Build Life Cycle Phases

validate

generate/process-sources

process-sources

generate/process-resources

compile

test

prepare-package

package

pre-integration-test

integration-test

post-integration-test

verify

install

deploy

pom.xml

slide22

Cargo

  • A set of APIs that assists in
  • installing web containers (such as Tomcat, JBoss)
  • booting and shutting them down
  • deploying web applications (.wars and .ears)
  • Invokable via
  • ant tasks
  • maven plugin
  • Java API

<target name="functional-test" >

<cargo containerId="tomcat6x" action="start" … >

<zipurlinstaller installurl="http://somewhere/tomcat-6.0.zip"/>

<configuration type="standalone" home="${tomcatdir}">

<deployable type="war" file="foo.war"/>

</configuration>

</cargo>

<plugin> ...

<artifactId>cargo-maven2-plugin</artifactId>

<config>

<wait>false</wait>

<container>

<containerId>tomcat6x</containerId>

<zipUrlInstaller>

<url>http://somewhere/tomcat-6.0.zip</url>

...

Installer installer =

new URL("http://somewhere/tomcat-6.0.zip"));

installer.iZipURLInstaller(new nstall();

LocalConfiguration configuration =

new DefaultConfigurationFactory().createConfiguration("tomcat6x")...)

container = new DefaultContainerFactory() .createContainer("tomcat6x"....);

container.setHome(installer.getHome());

WAR deployable = new WAR("foo.war);

deployable.setContext("ROOT");

configuration.addDeployable(deployable);

slide23

Grails Selenium-rc Plugin

  • Advantages:
    • really easy to install and start using
  • Disadvantages:
    • Very new, not extremely well field tested
    • AFAIK, no way to run HTML-based tests
      • In other words, tests authored in the Selenium IDE must be converted to Java first
slide24

Lab 2: Grails Selenium-rc Plugin

You can copy and paste the commands, and the

Groovy code for the test class.

Please go to this page for the text to copy ->

http://buildchimp.com/wordpress/?p=241

  • Create the App
    • grails create-app books
    • cd books
    • grails create-domain-class com.Book
    • grails generate-all com.Book
  • Make sure it launches as expected
    • grails run-app   (see the familiar ‘Welcome to Grails’ message)
  • Install plugin and Create Test
    • Type
      • grails install-plugin selenium-rc
    • Open up grails-app/conf/Config.groovy and ensure that  the grails.serverURL property is defined for every enviornment (production, development, and test.) If this property is undefined I’ve  seen strange problems occur when test tests are run.
    • Open an editor on the file test/selenium/HomePageTests.groovy, then type :
slide25

Lab 2: Grails Selenium-rc Plugin

  • Run the Tests to Verify Success, Then Deliberately Introduce a Failure Type
    • grails test-app
  • This will run all unit, functional and integration tests. You should see the browser pop up briefly and the tests should pass.
  • To verify that you are testing what you think you are testing, you will now deliberately introduce  a test failure.
    • Open the file ./grails-app/views/index.gsp and replace all occurrences of ‘Welcome to Grails’ with ‘Welcome to Jail’.
    • Run
      • grails clean
      • grails test-app
    • Note that the Tests FAILED message is now visible. In the last page of your output you should also see the message:
      • testHomePageLoads…FAILED
    • To see a detailed stack trace at the point of failure, open your folder browser on the folder test/reports/plain.
    • View the file  TEST-HomePageTests.txt and you should see a stack trace that describes the assertion that failed.
slide27

Content Licensing Terms for This Work

You may present, distribute, copy, or incorporate into your own work, any and all portions of this presentation as long as such copies, or derivative works are made available without charge.

If you would like to redistribute this work on any type of fee-for-use or subscription basis, or if you wish incorporate any or all portions of this work into content which you charge for, please contact info <at> buildlackey.com to discuss licensing terms.