Presentation given during GDG DevFest Season 2015 in Warsaw. Encourage developers to use my project RoboSpock.

1. pjakubczyk
Przemek Jakubczyk
Android Technical Lead @Applause
@pjakubczyk
RoboSpock.org
robospock

2. RoboSpock
enhance Android test with Groovy

3. Introduction
given:
I have lots of testing tools
expect:
I want better unit test

4. GIVEN
JVM
jUnit
Assert
Mockito
TestNG
AssertJ
PowerMock

5. GIVEN
JVM
jUnit
Assert
Mockito
TestNG
AssertJ
PowerMock

6. GIVEN
JVM
jUnit
Assert
Mockito
TestNG
AssertJ
PowerMock

7. GIVEN
JVM
jUnit
Assert
Mockito
TestNG
AssertJ
PowerMock

8. GIVEN
Android
AndroidJUnitRunner
Espresso
Robolectric
Robotium

9. GIVEN
AndroidJUnitRunner
Espresso
Robolectric
Robotium
JVM vs Dalvik
Android

10. GIVEN
AndroidJUnitRunner
Espresso
Robolectric
Robotium
UI testing
Android

11. JVM
when:
I work using regular JVM
then:
I choose Spock

12. Android
when:
I am working with Android
then:
I choose Robolectric

13. Conclude
given:
I am testing Android
when:
I need easy tool
then:
I choose
RoboSpock
Robolectric + SpockRoboSpock

14. “to conclue”
One Robospock to rule them all
One Robospock to find them
One Robospock to bring them all and in the darkness bind them

15. Robospock
One Robospock to rule them all
One Robospock to find them
One Robospock to bring them all and in the darkness bind them

16. THEN I have organized syntax
benefits from
def “should update first letter” {
given:
def myLabel = new MyLabel(“adam”)
when:
myLabel.transform()
then:
myLabel.userName == “Adam”
}
Spock
Groovy

17. AND
def “should start new activity”
def “should change color when action occurred”
def “should return always top element from the stack”
def “should I care about how long test name really can be?”
benefits from Groovy
I can use human readable method names

18. AND
benefits from Spock
given:
def myButton = new Button(...)
and:
def listener = Mock(OnClickListener)
myButton.setOnClickListener(listener)
when:
myButton.performClick()
then:
1 * listener.onClick(myButton)
I can use powerful Mocks

19. AND
benefits from Spock
given:
def myLabel = new Label()
when:
myLabel.setColor(color)
then:
myLabel.getColor() == color
where:
color << [Color.RED, Color.WHITE, Color.BLUE]
I can easily check many conditions

20. AND
benefits from Spock
given:
def myLabel = new MyLabel()
when:
myLabel.setColor(color)
then:
myLabel.getColor() == color
where:
color << [Color.RED, Color.WHITE, Color.BLUE]
I can easily check many conditions

21. AND
benefits from Spock
given:
def myLabel = new Label()
when:
myLabel.setName(“James Bond”)
then:
thrown(FictionalCharacterNameException)
I can organize exceptions

22. And many more (>10) available on
http://spockframework.github.io/spock/docs/1.0/extensions.html
AND
benefits from Spock
@Stepwise
@Issue("http://my.issues.org/FOO-1")
@IgnoreIf(reason == "TODO")
@Timeout(5)
I can use other Spock extensions

23. AND
benefits from Groovy
given:
def dao = new UserDao()
and:
def users = (1..10).collect{ User.newInstance() }
then:
dao.insert(users)
where:
dao.getUserCount() == 10
I can use groovy collections

24. AND
benefits from Groovy
given:
def users = (1..10).collect{ User.newInstance() }
when:
def result = users.find { it.name == “James” }
then:
result.lastName == “Bond”
I can use groovy collections

25. AND
given:
def activity.sharedPref = Mock(SharedPreferences) {
getString(“metJamesBond”) >> false
}
when:
activity.myButton.performClick()
then:
activity.myLabel.getText() == “Sorry, you
haven’t meet James”
Benefits from Groovy
I can use closures in Mocks

26. THEN
Benefits from Robolectric
given:
def myLabel = new TextView(RuntimeEnvironment.application)
when:
myLabel.setText(“James Bond”)
then:
myLabel.getText() == “James Bond”
I can use Context

27. AND
Benefits from Robolectric
I can use helpful shadows
given:
def myButton = new Button(...)
when:
myButton.performClick()
then:
ShadowToast.lastToast
ShadowToast.textOfLastToast
== “I <3 Minsk and James Bond too”

28. AND
Benefits from Robolectric
I can use helpful shadows
given:
def myButton = new Button(...)
and:
def listener = new View.OnClickListener() {...}
when:
myButton.setOnClickListener(listener)
then:
Shadows.shadowOf(myButton)
.getOnClickListener() == listener

29. buildscript {
dependencies {
classpath 'com.android.tools.build:gradle:1.3.0'
classpath 'org.codehaus.groovy:gradle-groovy-android-plugin:0.3.6'
}
}
apply plugin: 'com.android.application'
apply plugin: 'groovyx.grooid.groovy-android'
dependencies {
testCompile 'org.robospock:robospock:1.0.0'
}
build.gradle

30. Android Studio

31. Android Studio

32. Thanks. Any Questions?
Przemek Jakubczyk
Android Technical Lead @Applause
gh: pjakubczyk
@pjakubczyk
www.robospock.org

35. Tips:
1. Try to create an interface between your code and OS code
a) Toasts
b) starting activity/service
2. Make a barrier from 3rd party code
for example inherit from RoboSpecfication
Because author might change package name :)