Make Testing Groovy

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Make your testing Groovy
GR8Conf US 2017
Paul King
code: https://github.com/paulk-asert/MakeTestingGroovy
slides: https://www.slideshare.net/paulk_asert/make-testing-groovy

©paulk_asert2006-2017
Understanding testing
Test
System under test

Range of testing scenarios
Simple
component
Unit
Testing
Multiple
Pieces
Your
lete
comp-
system
Integration
Testing
Acceptance
Testing
Test
System under test

Understanding testing
Unit
Utilities
AcceptanceIntegration
Tests
Test Runner/Framework
Driver

Understanding testing with a DSL
Unit
Utilities
Tests
Test Runner/Framework Driver

Understanding testing with a DSL
Unit
Utilities
Tests
Testing DSL

Why test with Groovy?

Why test with Groovy?
It depends …
… but many great reasons! ☺
TL;DR
• Feature-rich frameworks which encourage easy to maintain
tests
• Script all things (devops nirvana)
• Open source avoids being locked-in to vendor acceptance
testing tools
• Great for writing testing DSLs
• Access to huge range of utilitiy libraries

Why Groovy?
Unit AcceptanceIntegration
Consider audience/”fit”
Utilities
Tests
Testing DSL

“People Fit” / “Organization Fit”
People
• Developers (familiarity with languages)
• Testers (tools language familiarity)
• Responsibility to create/run/maintain
• BAs/SMEs (ability to read technical tests)
• Consider both development and maintenance
• Expected feedback from tests (JUnit/Reports)
Organization
• Maturity level
• Degree of automation
• Tools in use
• Need for adaptability

Why Groovy?
Utilities
Tests
Testing DSL
Very flexible utilities available:
reading excel
regex for reading text
combinations

Why Groovy?
Utilities
Tests
Testing DSL
Great DSL support

Why Groovy?
Utilities
Tests
Testing DSL
Less brittle “glue” code

Why Groovy?
Utilities
Tests
Testing DSL
Great Frameworks:
JUnit, TestNG, Spock
Data-driven, property-based

Why Groovy?
Utilities
Tests
Testing DSL
Many Java/Groovy drivers:
Geb, HtmlUnit, Selenium

Looking at testing frameworks
Utilities
Tests
Testing DSL

Testing Frameworks
None
JUnit 3
JUnit 4
JUnit 5
TestNG
Spock

Testing Frameworks
None ???
JUnit 3
JUnit 4
JUnit 5
TestNG
Spock

Testing Frameworks
None ???
• Groovy deems testing so important
that it comes with built-in testing:
• Built-in asserts, mocks
• Built-in JUnit 3 GroovyTestCase and utilities
• Built-in runners for tests
• Bundles JUnit 4
JUnit 3
JUnit 4
JUnit 5
TestNG
Spock

Built-in assertions
class Converter {
static celsius (fahrenheit) {
(fahrenheit - 32) * 5 / 9
}
}

Temperature scales
http://imgur.com/gallery/KB3nyXX

Built-in assertions
import static Converter.celsius
assert 20 == celsius(68)
assert -17 == celsius(0).toInteger()
class Converter {
static celsius (fahrenheit) {
(fahrenheit - 32) * 5 / 9
}
}

Built-in assertions
But what about errors?
Groovy’s power Assert mechanism gives a friendly description of
what went wrong

GroovyTestCase (extends JUnit 3)
import org.junit.Assert
import static org.junit.Assert.assertEquals
class SimpleGroovyTest extends GroovyTestCase {
void testShouldConvert() {
assert Converter.celsius(68) == 20
assert Converter.celsius(212) == 100, "Should convert boiling"
assertEquals("Should convert freezing", 0.0, celsius(32.0))
assertEquals("Should convert nearly freezing", 0.0, celsius(32.1), 0.1)
}
}

JUnit4
import org.junit.Test
import static org.junit.Assert.assertEquals
class SimpleJUnit4Test {
@Test
void shouldConvert() {
assert celsius(68) == 20
assert celsius(212) == 100, "Should convert boiling"
assertEquals("Should convert freezing", 0.0, celsius(32.0))
assertEquals("Also for nearly freezing", 0.0, celsius(32.1), 0.1)
}
}

JUnit5
@Grab('org.junit.platform:junit-platform-runner:1.0.0-M5')
@Grab('org.junit.jupiter:junit-jupiter-engine:5.0.0-M5')
import org.junit.jupiter.api.Test
import org.junit.platform.runner.JUnitPlatform
import org.junit.runner.RunWith
@RunWith(JUnitPlatform)
class ConverterJUnit5Tests {
@Test
void freezing() {
}
@Test
void boiling() {
}
}

Spock - BDD style
@Grab('org.spockframework:spock-core:1.1-groovy-2.4')
import spock.lang.Specification
class GivenWhenThenSpec extends Specification {
def "test adding a new item to a set"() {
given:
def items = [4, 6, 3, 2] as Set
when:
items << 1
then:
items.size() == 5
}
}

Parameterized import org.junit.Test
import org.junit.runner.RunWith
import org.junit.runners.Parameterized
import org.junit.runners.Parameterized.Parameters
@RunWith(Parameterized)
class DataDrivenJUnitTest {
private c, f, scenario
@Parameters static scenarios() {[
[0, 32, 'Freezing'],
[20, 68, 'Garden party conditions'],
[35, 95, 'Beach conditions'],
[100, 212, 'Boiling']
]*.toArray()}
DataDrivenJUnitTest(c, f, scenario)
this.c = c
this.f = f
this.scenario = scenario
}
@Test void convert() {
def actual = celsius(f)
def msg = "$scenario: ${f}°F should convert into ${c}°C"
assert c == actual, msg
}
}

Spock
import spock.lang.*
class SpockDataDriven extends Specification {
def "test temperature scenarios"() {
expect:
celsius(tempF) == tempC
where:
scenario | tempF || tempC
'Freezing' | 32 || 0
'Garden party conditions' | 68 || 20
'Beach conditions' | 95 || 35
'Boiling' | 212 || 100
}
}

Spock - Celsius
import spock.lang.*
class SpockDataDriven extends Specification {
@Unroll
def "Scenario #scenario: #tempFºF should convert to #tempCºC"() {
expect:
celsius(tempF) == tempC
where:
scenario | tempF || tempC
'Freezing' | 32 || 0
'Garden party conditions' | 68 || 20
'Beach conditions' | 95 || 34
'Boiling' | 212 || 100
}
}

Assertion frameworks
None
• Groovy’s built-in assert
JUnit 3 assertions
• assertEquals()
Dedicated library
• Hamcrest
• FEST
• AssertJ
• Google truth
assertThat(googleColors).containsNoneOf(PINK, BLACK, WHITE, ORANGE)
assert ![PINK, BLACK, WHITE, ORANGE].any {
color -> color in googleColors }

usually
usually

Assertion frameworks
None
• Groovy’s built-in assert
JUnit 3 assertions
• assertEquals()
Dedicated library
• Hamcrest
• FEST
• AssertJ
• Google truth
assertThat(googleColors).containsNoneOf(PINK, BLACK, WHITE, ORANGE)
assert [PINK, BLACK, WHITE, ORANGE].every {
color -> color !in googleColors }

usually
usually

Looking at web drivers
Utilities
Tests
Testing DSL

Web testing drivers
None
Regex
XmlSlurper
Cyberneko
JSoup
HttpBuilder
HttpBuilderNG
JMeter
Ersatz
WebTest
HtmlUnit
Geb
WebDriver
Selenium
JWebUnit
Arquillian
Cucumber
JBehave
Serenity
RobotFramework
Concordion
EasyB
Tumbler
FitNesse/Slim

Case Study
def html = new URL('http://localhost:8080').text
assert html.contains('<title>Welcome to SimpBlog</title>')
html.find(~'<title>(.*)</title>') { all, title ->
assert title == 'Welcome to SimpBlog'
}

Case Study
def page = new XmlSlurper().parse('http://localhost:8080/viewPost?id=1')
assert page.body.h1.text().contains('Christmas')
assert page.body.h3[1].text() == 'Category: Home'
assert page.body.h3[2].text() == 'Author: Bart'
assert page.body.table.tr.td.p.text() ==
"Aren't we forgeting the true meaning of this day? You know,
the birth of Santa."

Case Study
@Grab('net.sourceforge.nekohtml:nekohtml:1.9.22')
import org.cyberneko.html.parsers.SAXParser
def parser = new XmlSlurper(new SAXParser())
def page = parser.parse('http://localhost:8080/viewPost?id=1')
assert page.BODY.H1.text().contains('Christmas')
assert page.BODY.H3[1].text() == 'Category: Home'
assert page.BODY.H3[2].text() == 'Author: Bart'
assert page.BODY.TABLE.TBODY.TR.TD.P.text() ==
"Aren't we forgeting the true meaning of this day? You
know, the birth of Santa."

HtmlUnit
GUI-Less browser for Java
Lets you retrieve pages, click
links, fill out forms, etc.

HtmlUnit class TestSimpBlogJUnit4 {
def page
@Before
void setUp() {
page = new WebClient().getPage('http://localhost:8080/postForm')
assert 'Welcome to SimpBlog' == page.titleText
}
@Test
void bartWasHere() {
// fill in blog entry and post it
def form = page.getFormByName('post')
form.getInputByName('title').setValueAttribute('Bart was here (HtmlUnit JUnit4)')
form.getSelectByName('category').getOptions().find {
it.text == 'School' }.setSelected(true)
form.getTextAreaByName('content').setText('Cowabunga Dude!')
def result = form.getInputByName('btnPost').click()
// check blog post details
assert result.getElementsByTagName('h1').item(0).
textContent.matches('Post.*: Bart was here.*')
def h3headings = result.getElementsByTagName('h3')
assert h3headings.item(1).textContent == 'Category: School'
assert h3headings.item(2).textContent == 'Author: Bart'
// expecting: <table><tr><td><p>Cowabunga Dude!</p>...</table>
def cell = result.getByXPath('//TABLE//TR/TD')[0]
assert cell.textContent.trim() == 'Cowabunga Dude!'
}
}

Geb
@Grab("org.gebish:geb-core:1.1.1")
@Grab("org.seleniumhq.selenium:selenium-chrome-driver:3.4.0")
@Grab("org.seleniumhq.selenium:selenium-support:3.4.0")
import geb.Browser
Browser.drive {
go 'http://localhost:8080/postForm'
assert title == 'Welcome to SimpBlog'
$("form").with {
title = "Bart was here (Geb)"
author = 'Bart'
category = 'School'
content = "Cowabunga Dude!"
btnPost().click()
}
assert $("h1").text().matches("Post d+: Bart was here.*")
assert $("h3")[1].text() == 'Category: School'
assert $("h3")[2].text() == 'Author: Bart'
assert $("p").text() == "Cowabunga Dude!"
}

Geb with pages
class NewPostPage extends Page {
static url = "http://localhost:8080/postForm"
static at = { title == 'Welcome to SimpBlog' }
static content = {
blogTitle { $("form").title() } // !title
blogger { $("form").author() }
label { $("form").category() }
blogText { $("form").content() } // !content
post(to: ViewPostPage) { btnPost() }
}
}
class ViewPostPage extends Page {
static at = { $("h1").text().contains('Post') }
static content = {
mainHeading { $("h1").text() }
categoryHeading { $("h3")[1].text() }
authorHeading { $("h3")[2].text() }
blogText { $("p").text() }
}
}

Geb with pages
class NewPostPage extends Page {
static url = "http://localhost:8080/postForm"
static at = { title == 'Welcome to SimpBlog' }
static content = {
blogTitle { $("form").title() } // !title
blogger { $("form").author() }
label { $("form").category() }
blogText { $("form").content() } // !content
post(to: ViewPostPage) { btnPost() }
}
}
class ViewPostPage extends Page {
static at = { $("h1").text().contains('Post') }
static content = {
mainHeading { $("h1").text() }
categoryHeading { $("h3")[1].text() }
authorHeading { $("h3")[2].text() }
blogText { $("p").text() }
}
}
Browser.drive {
to NewPostPage
assert at(NewPostPage)
blogTitle.value 'Bart was here (Geb pages)'
blogger.value 'Bart'
label.value 'School'
blogText.value 'Cowabunga Dude!'
post.click()
assert at(ViewPostPage)
assert mainHeading ==~ "Post d+: Bart was here.*"
assert categoryHeading == 'Category: School'
assert authorHeading == 'Author: Bart'
assert blogText == "Cowabunga Dude!"
}

Case Study:
Cucumber
//…
Given(~/^we are on the create blog entry page$/) { ->
tester = new BlogTester('http://localhost:8080/postForm')
tester.checkTitle 'Welcome to SimpBlog'
}
When(~/Î have entered '([^']*)' as the title$/) { String title ->
formFields.title = title
}
When(~/Î have entered '([^']*)' into the content$/) { String content ->
formFields.content = content
}
When(~/Î have selected '([^']*)' as the category$/) { String category ->
formFields.category = category
}
When(~/Î click the 'Create Post' button$/) { ->
tester.postBlog(formFields)
}
Then(~/Î expect the entry to be posted$/) { ->
tester.checkHeadingMatches formFields.title
tester.checkSubheading 'Category', formFields.category
tester.checkPostText formFields.content
tester.checkSubheading 'Author', formFields.author
}

//…
Given(~/^we are on the create blog entry page$/) { ->
tester = new BlogTester('http://localhost:8080/postForm')
tester.checkTitle 'Welcome to SimpBlog'
}
When(~/Î have entered '([^']*)' as the title$/) { String title ->
formFields.title = title
}
When(~/Î have entered '([^']*)' into the content$/) { String content ->
formFields.content = content
}
When(~/Î have selected '([^']*)' as the category$/) { String category ->
formFields.category = category
}
When(~/Î click the 'Create Post' button$/) { ->
tester.postBlog(formFields)
}
Then(~/Î expect the entry to be posted$/) { ->
tester.checkHeadingMatches formFields.title
tester.checkSubheading 'Category', formFields.category
tester.checkPostText formFields.content
tester.checkSubheading 'Author', formFields.author
}
Feature: Use the blogging system
Scenario: Bart posts a new blog entry
Given we are on the create blog entry page
When I have entered 'Bart was here (Cuke Groovy)' as the title
And I have entered 'Cowabunga Dude!' into the content
And I have selected 'Home' as the category
And I have selected 'Bart' as the author
And I click the 'Create Post' button
Then I expect the entry to be posted
Case Study:
Cucumber

Case Study: Slim/FitNesse
package simpblog
import com.gargoylesoftware.htmlunit.WebClient
class NewBlogPost {
String author, title, content, category
private result
def execute() {
def client = new WebClient()
def page = client.getPage('http://localhost:8080/postForm')
assert 'Welcome to SimpBlog' == page.titleText
form.getInputByName('title').
setValueAttribute("$title (Slim)")
form.getSelectByName('author').getOptions().find{
it.text == author }.setSelected(true)
form.getSelectByName('category').getOptions().find{
it.text == category }.setSelected(true)
form.getTextAreaByName('content').setText(content)
result = form.getInputByName('btnPost').click()
}
def mainHeading() {
def m = result.getElementsByTagName('h1').item(0).textContent =~ /Post .*: (.*) ([^)]*)/
m[0][1]
}

Looking at testing utilities
Utilities
Tests
Testing DSL

Testing DSLs
Low-level “DSL/fluent API”
Medium-level DSL
Higher-level DSL
post blog from Bart with title "Bart rulz!" and category School and content "Cowabunga Dude!"
form.getInputByName('title').setValueAttribute('Bart was here (HtmlUnit JUnit4)')
form.getSelectByName('category').getOptions().find {
it.text == 'School' }.setSelected(true)

DSLs: Fluent API
class BlogTestCase extends GroovyTestCase {
def page
def lastResult
void setUp() {
page = new WebClient().getPage('http://localhost:8080/postForm')
}
def checkTitle(String title) {
assert title == page.titleText
}
def prepareBlog() {
new PrepareBlogEmpty()
}
// ...
}

DSLs: Fluent API
// ...
def postBlog(Map params) {
form.getInputByName('title').setValueAttribute(params.title)
form.getSelectByName('category').options.find {
it.text == params.category
}.setSelected(true)
form.getSelectByName('author').options.find {
it.text == params.author
}.setSelected(true)
form.getTextAreaByName('content').setText(params.content)
lastResult = form.getInputByName('btnPost').click()
}
def checkHeadingMatches(String regex) {
def heading = lastResult.getElementsByTagName('h1').item(0)
assert heading.textContent.matches(regex)
}
// ...
}

DSLs: Fluent API
class TestSimpBlogFluentApi extends BlogTestCase {
void setUp() {
super.setUp()
checkTitle('Welcome to SimpBlog')
}
void testBartWasHere() {
prepareBlog()
.withTitle('Bart was here (HtmlUnit FluentApi)')
.withAuthor('Bart')
.withCategory('School')
.withContent('Cowabunga Dude!')
.post()
checkHeadingMatches 'Post.*: Bart was here.*'
checkSubheading 1, 'Category: School'
checkSubheading 2, 'Author: Bart'
checkPostText 'Cowabunga Dude!'
}

DSLs:
command
chains
class TestSimpBlogDsl extends BlogTestCase {
private the, has, a, with, heading
void setUp() {
super.setUp()
}
def post(_a) {
[
blog: { _with ->
[title: { postTitle ->
[and: { __with ->
[author: { postAuthor ->
[and: { ___with ->
[category: { postCategory ->
[and: { ____with ->
[content: { postContent ->
postBlog(title: postTitle,
author:postAuthor,
content:postContent,
category: postCategory)
} ]} ]} ]} ]} ]} ]} ]}
]
}
def check(_the) {
[
browser: { _has -> [title: { checkTitle it }]},
main: { _heading -> [matches: { checkHeadingMatches it }]},
category: { _has -> [value: { checkSubheading 1, "Category: $it" }]},
author: { _has -> [value: { checkSubheading 2, "Author: $it" }]},
blog: { _has -> [text: { checkPostText it }]}
]
}
// ...

DSLs:
command
chains
// ...
void testBartWasHere() {
check the browser has title 'Welcome to SimpBlog'
post a blog with title 'Bart was here (HtmlUnit DSL)'
and with author 'Bart'
and with category 'School'
and with content 'Cowabunga Dude!'
check the main heading matches 'Post.*: Bart was here.*'
check the category has value 'School'
check the author has value 'Bart'
check the blog has text 'Cowabunga Dude!'
}
}

Testing Utilities
Utilities
Tests
Testing DSL

Testing Utilities
All combinations
All pairs
Property-based testing
GPars
Constraint programming
ModelJUnit

Agile testing game (TDD)
• Minimum test code to steer design of minimal production code
with desired business functionality but 100% code coverage
• “Grey box” testing
• Rarely used with functional programming

Agile testing game (TDD)
• Minimum test code to steer design of minimal production code
with desired business functionality but 100% code coverage
• “Grey box” testing
• Rarely used with functional programming
• Instead validate certain properties

@Grab('net.java.quickcheck:quickcheck:0.6')
import static
net.java.quickcheck.generator.PrimitiveGenerators.*
import static java.lang.Math.round
def gen = integers(-40, 240)
def liquidC = 0..100
def liquidF = 32..212
100.times {
int f = gen.next()
int c = round(celsius(f))
assert c <= f
assert c in liquidC == f in liquidF
}

Property-based testing with Spock
https://github.com/Bijnagte/spock-genesis

Property-based testing: spock genesis
@Grab('com.nagternal:spock-genesis:0.6.0')
@GrabExclude('org.codehaus.groovy:groovy-all')
import spock.genesis.transform.Iterations
import static spock.genesis.Gen.integer
class ConverterSpec extends Specification {
@Iterations(100)
def "test phase maintained"() {
given:
int tempF = integer(-40..240).iterator().next()
when:
int tempC = round(celsius(tempF))
then:
tempC <= tempF
tempC in liquidC == tempF in liquidF
}
…

Property-based testing: spock genesis
@Grab('com.nagternal:spock-genesis:0.6.0')
@GrabExclude('org.codehaus.groovy:groovy-all')
import spock.genesis.transform.Iterations
import static spock.genesis.Gen.integer
class ConverterSpec extends Specification {
@Iterations(100)
def "test phase maintained"() {
given:
int tempF = integer(-40..240).iterator().next()
when:
int tempC = round(celsius(tempF))
then:
tempC <= tempF
tempC in liquidC == tempF in liquidF
}
…
…
@Iterations(100)
def "test order maintained"() {
given:
int tempF1 = integer(-273..999).iterator().next()
int tempF2 = integer(-273..999).iterator().next()
when:
int tempC1 = round(celsius(tempF1))
int tempC2 = round(celsius(tempF2))
then:
(tempF1 <=> tempF2) == (tempC1 <=> tempC2)
}
}

Property-based testing: Case Study

GPars
Library classes and DSL allowing
you to handle tasks concurrently:
• Data Parallelism map, filter, reduce functionality
in parallel with parallel array support
• Asynchronous functions extend the Java
executor services to enable multi-threaded
closure processing
• Dataflow Concurrency supports natural
shared-memory concurrency model, using
single-assignment variables
• Actors provide Erlang/Scala-like actors
including "remote" actors on other machines
• Safe Agents provide a non-blocking mt-safe
reference to mutable state; like "agents" in Clojure 89

Case Study with GPars
//@Grab('org.codehaus.gpars:gpars:0.12')
import groovyx.gpars.GParsPool
def testCases = [
['Title 1 (GPars)', 'Home', 'Bart', 'Content 1'],
['Title 2 (GPars)', 'Work', 'Homer', 'Content 2'],
['Title 3 (GPars)', 'Travel', 'Marge', 'Content 3'],
['Title 4 (GPars)', 'Food', 'Lisa', 'Content 4']
]
GParsPool.withPool {
testCases.eachParallel{ title, category, author, content ->
postAndCheck title, category, author, content
}
}
def postAndCheck(String title, String category, String author, String content) {
def tester = new BlogTester('http://localhost:8080/postForm')
tester.postAndCheck title, category, author, content
}

Constraint/Logic Programming
Description
• Style of programming where relations between variables are
stated in the form of constraints
• First made popular by logic programming languages such as
Prolog but the style is now also used outside logic programming
specific languages
• Constraints differ from the common primitives of other
programming languages in that they do not specify one or more
steps to execute but rather the properties of a solution to be
found
• Popular libraries used with Groovy supporting constraint
programming include Gecode/J, Choco and tuProlog
• We'll look at Choco as an example

Case Study with Constraint Programming
You have been asked to set up some test cases representing the
Simpsons’ weekly blogging habits
After some careful study you observe the following strange behavior
• They never blog on the same day
• Marge blogs only on a Saturday or Sunday
• Maggie blogs only on a Tuesday or Thursday
• Lisa blogs only on a Monday, Wednesday or Friday
• Bart blogs only on the day after Lisa
• Homer only blogs if noone else blogged the previous day and
doesn't allow anyone to blog the next day

//@Grab('org.choco-solver:choco-solver:4.0.4')
import org.chocosolver.solver.Model
def m = new Model()
daysOfWeek = ["Sunday", "Monday", "Tuesday", "Wednesday",
"Thursday", "Friday", "Saturday"]
def (SUN, MON, TUE, WED, THU, FRI, SAT) = 0..6
def bart = m.intVar('Bart', 0, 6)
def homer = m.intVar('Homer', 0, 6)
def marge = m.intVar('Marge', 0, 6)
def lisa = m.intVar('Lisa', 0, 6)
def maggie = m.intVar('Maggie', 0, 6)
def authors = [bart, homer, marge, lisa, maggie]
//…

// They never blog on the same day
m.allDifferent(*authors).post()
// Marge blogs only on a Saturday or Sunday
m.or(m.arithm(marge, "=", SAT), m.arithm(marge, "=", SUN)).post()
// Maggie blogs only on a Tuesday or Thursday
m.or(m.arithm(maggie, "=", TUE), m.arithm(maggie, "=", THU)).post()
// Lisa blogs only on a Monday, Wednesday or Friday
m.or(m.arithm(lisa, "=", MON), m.arithm(lisa, "=", WED), m.arithm(lisa, "=", FRI)).post()
// Bart blogs only on the day after Lisa
m.arithm(bart, "-", lisa, "=", 1).post()
// Homer only blogs if noone else blogged the previous
// day and doesn't allow anyone to blog the next day
m.and(m.distance(homer, marge, "!=", 1),
m.distance(homer, bart, "!=", 1),
m.distance(homer, maggie, "!=", 1),
m.distance(homer, lisa, "!=", 1)).post()
//…

def solutions = []
while (m.solver.solve()) {
solutions << pad('') + authors.collect {
pad(daysOfWeek[it.value])
}.join()
}
if (solutions) {
println pad("Solutions:") + authors.collect {
pad(it.name)
}.join()
println solutions.join('n')
} else {
println "No Solutions"
}
def pad(s) { s.padRight(12) }Solutions: Bart Homer Marge Lisa Maggie
Thursday Sunday Saturday Wednesday Tuesday
Thursday Saturday Sunday Wednesday Tuesday
Saturday Tuesday Sunday Friday Thursday
Tuesday Saturday Sunday Monday Thursday

https://github.com/paulk-asert/MakeTestingGroovy

Key Testing Practices…
Use testing DSL’s
Look to move up the testing stack
• It used to be all about the driver
• Now the driver is hidden in the
framework or tool stack
Apply good testing practices
• Pareto analysis, bug clusters, mutation testing, test early,
all pairs/equivalence partitions/orthogonal array testing,
risk-based test selection, coding for testability, use CI,
boundary value analysis, defensive programming

More Information: Groovy in Action

Make Testing Groovy

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