NFJS Software Symposium Series 2013
Ken Sipe
Spock - The Logical Enterprise Testing Tool
Spock TestingAbout Speaker
Developer: Embedded, C++, Java, Groovy, Grails, C#, Objective CSpeaker: JavaOne 2009 Rock Star, NFJS, JAXMicrosoft MCPSun Certified Java 2 ArchitectMaster of Scrums Agile CoachInstructor: VisiBroker CORBA
Rational Rose, OOAD
http://kensipe.blogspot.com/http://del.icio.us/kensipetwitter: @[email protected]
Spock TestingAgenda
nTestingnIntroduction to SpocknMocking
Spock Testing
Spock Intro
4
Spock Testing
ntesting framework...
nbased on Groovy
nfully compatible with JUnit
nresult of learnings from¨RSpec, BDD, JUnit
5
Spock is...
Spock TestingSpock Can...
nReduces lines of code
nMake tests more readable
nBe extended
6
Spock Testing
JUnit
7
Spock TestingTaxonomy of JUnit
Spock Testing
9
JUnit Pain Points?
Spock TestingUnit testing needs
nConcise, Clear and ReadablenPromote “user” thinking
¨context¨stimulus¨expectations
nProductivity
10
Spock Testing
Groovy
11
Spock TestingTaxonomy of GroovyTestCase
Spock TestingGroovy and Testing
Spock TestingGroovy Power Assert
Condition not satisfied:
interest == calc.calculate(amt, year)| | | | | |
25.0 | | 20.0 100 4 | com.math.SimpleInterestCalculator@606e1dec
false
Spock TestingGroovy Improvements
nConcise, Clear and ReadablenPromote “user” thinking
¨context¨stimulus¨expectations
nProductivity
15
Spock Testing
Spock
16
Spock TestingSpock
nProgrammers Environment¨Groovy
nPromotes Clarity¨structural blocks¨removes noise
17
Spock TestingWhy use Spock?
nExpressive testing languagenEasy to learnnUsable from unit to end-to-endnLeverages GroovynRuns with JUnit Runner
¨IDE¨CI
18
Spock Testing
Taxonomy of a Spec
19
Spock TestingFirst Spec
Spock TestingTerms
nSpecification¨compare to TestCase or GroovyTestCase¨Instructs JUnit to run with Sputnik (JUnit runner)
nFields¨initialized for each “test”¨think “setup”¨not shared between feature methods
21
Spock TestingMore Fields
nShared¨Setup once¨think setupSpec()
nstatics¨only use for constants
22
Spock TestingFixture Methods
nbefore / after a featurenbefore / after a specnoptional
23
Spock TestingFeature Methods
n“heart” of specnfour phases
¨setup the features fixture¨provide stimulus to system¨describes the response¨clean up
24
Spock TestingBlocks
25
given: preconditions, data fixtures
when: actions that trigger some outcomethen: makes assertions about outcome
expect: short alt to when & then
where: applies varied inputs
and: sub-divides other blocks
setup: alias for given
cleanup: post-conditions, housekeeping
Spock TestingCommon Blocks
nWhen / Then / WherenGiven / When / Then
26
Spock TestingBlocks
nsetup
¨must be first¨must be the only¨no special semantics¨label is optional¨label given: is an alias
27
Spock TestingWhen / Then Blocks
n used together¨possible to have many per feature
n then restrictions¨conditions¨exception conditions¨automatic asserts¨interactions¨variable defs
28
Spock TestingConditions
nchecking for exceptions
29
Spock TestingThrowing an Exception NOT!
30
Spock TestingMocks and Expectations
31
Spock TestingCleanup on Feature X
ncleanup block¨only followed by a where block¨no repeats
32
Spock TestingWhere Blocks
¨last in a method¨no repeats¨used for data-driven features
33
Spock TestingHelper Methods
¨either return a booleannor
¨assert34
Spock Testing
Specification Functionsand Spock.lang.*
35
Spock Testing
nold()nthrown() / notThrownnwith {}
36
Spock TestingSpock.lang.* Documentation
37
@Title@Narrative @Issue@See@Subject
Spock TestingSpock.lang.* Ignoring Stuff
38
@Requires @IgnoreIf@Ignore@IgnoreRest
Spock TestingReporting
39
@Unroll
Spock TestingBuilt-in Extensions: AutoCleanup
40
@AutoCleanup@AutoCleanup(‘dispose’)@AutoCleanup(quite=true)
Spock TestingBuilt-in Extensions: Timeout
41
@Timeout@Timeout(10)@Timeout(value=10, unit=TimeUnit.MILLISECONDS)
Spock TestingBuilt-in Extensions: Stepwise
42
@Stepwise
Spock Testing
Hamcrest
43
Spock Testing
JUnit Rules
44
Spock Testing
SpockConfig
45
Spock TestingReferences
46
nGetting Spock¨http://code.google.com/p/spock/
nSource from Presentation¨https://github.com/kensipe/spock-demos-nfjs
Spock Testing
n Closing and Q&A
¨Please fill out the session evaluation¨Ken Sipe
n [email protected] kensipe.blogspot.comn twitter: @kensipe
Summary
