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These are confidential sessionsplease refrain from streaming, blogging, or taking pictures

Session 409

Testing in Xcode 5

Mike SwinglerXcode Engineer

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Why Test?

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Why Test?

Catch crashes

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Why Test?

Catch crashes Catch logic errors

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5/149

Why Test?

Catch crashes Catch logic errors

Help you write your code

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Why Test?

Catch crashes Catch logic errors

Help you write your code

Catch regressions

5/27/2018 Testing in XCode 5

7/149

Why Test?

Catch crashes Catch logic errors

Help you write your code

Catch regressions

Cover more configurations

5/27/2018 Testing in XCode 5

8/149

Why Test?

Catch crashes Catch logic errors

Help you write your code

Catch regressions

Cover more configurations

Cover everyone, all the time

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Overview

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Overview

What is a unit test?

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Overview

What is a unit test? Introducing XCTest

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Overview

What is a unit test? Introducing XCTest

Writing, running and debugging tests

5/27/2018 Testing in XCode 5

13/149

Overview

What is a unit test?

Introducing XCTest

Writing, running and debugging tests

Continuous integration

5/27/2018 Testing in XCode 5

14/149

Overview

What is a unit test?

Introducing XCTest

Writing, running and debugging tests

Continuous integration

Advanced setups

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Unit Testing

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Tests ONEthing

! Single unit of functionality

! Pass/Fail

! Small, fast, isolated

1What Is a Unit Test?

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Tests ONEthing

! Single unit of functionality

! Pass/Fail

! Small, fast, isolated

Unit tests dont cover

! Performance 1What is a Unit Test?

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Tests ONEthing

! Single unit of functionality

! Pass/Fail

! Small, fast, isolated

Unit tests dont cover

! Performance

! UI interaction 1What is a Unit Test?

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Tests ONEthing

! Single unit of functionality

! Pass/Fail

! Small, fast, isolated

Unit tests dont cover

! Performance

! UI interaction

! Whole system integration 1What is a Unit Test?

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Where to start testing

Your App

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Where to start testing

Your App

Model

Controller

View Server

Database

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Where to start testing

Your App

Model

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Introducing XCTest

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XCTest.framework

iOS and OS X

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XCTest.framework

iOS and OS X Requires Xcode 5

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XCTest.framework

iOS and OS X Requires Xcode 5

Derived from OCUnit

! Modernized

! Migration tool

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XCTest.framework

iOS and OS X Requires Xcode 5

Derived from OCUnit

! Modernized

! Migration tool

Builds .xctest bundles

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XCTest.framework

iOS and OS X Requires Xcode 5

Derived from OCUnit

! Modernized

! Migration tool

Builds .xctest bundles

Test runner injected in your app

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XCTest.framework

iOS and OS X Requires Xcode 5

Derived from OCUnit

! Modernized

! Migration tool

Builds .xctest bundles

Test runner injected in your app

Test rig loads libraries and test bundles

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Test Code

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@interface ExampleTests : XCTest

@end

@implementation ExampleTests

- (void) testExample {

XCTAssertTrue(2 + 2 == 4);

}

@end

Test Code

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@interface ExampleTests : XCTest

@end

@implementation ExampleTests

- (void) testExample {

XCTAssertTrue(2 + 2 == 4);

}

@end

Test Code

SubclassXCTestCase XCTest

d

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@interface ExampleTests : XCTest

@end

@implementation ExampleTests

- (void) testExample {

XCTAssertTrue(2 + 2 == 4);

}

@end

- (void) testExample {

}

Test Code

SubclassXCTestCase

test = method

T C d

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@interface ExampleTests : XCTest

@end

@implementation ExampleTests

- (void) testExample {

XCTAssertTrue(2 + 2 == 4);

}

@end

Test Code

SubclassXCTestCase

test = method

Prefixed test

test

T C d

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@interface ExampleTests : XCTest

@end

@implementation ExampleTests

- (void) testExample {

XCTAssertTrue(2 + 2 == 4);

}

@end

Test Code

SubclassXCTestCase

test = method

Prefixed test

No arguments, returns void void

T t C d

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@interface ExampleTests : XCTest

@end

@implementation ExampleTests

- (void) testExample {

XCTAssertTrue(2 + 2 == 4);

}

@end

XCTAssertTrue(2 + 2 == 4)

Test Code

SubclassXCTestCase

test = method

Prefixed test

No arguments, returns void

Makes assertions

T t C d

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@interface ExampleTests : XCTest

@end

@implementation ExampleTests

- (void) testExample {

XCTAssertTrue(2 + 2 == 4);

}

@end

Test Code

SubclassXCTestCase

test = method

Prefixed test

No arguments, returns void

Makes assertions

Built into test target

T t N i t

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Test Navigator

T t N i t

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Test Navigator

Test Navigator

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Test bundle targets

!Test classes

!Test methods

Test Navigator

Test Navigator

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Test bundle targets

!Test classes

!Test methods

Click to run

Test Navigator

Test Navigator

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Test bundle targets

!Test classes

!Test methods

Click to run

Test Navigator

Test Navigator

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Test bundle targets

!Test classes

!Test methods

Click to run

Test Navigator

Test Navigator

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Test bundle targets

!Test classes

!Test methods

Click to run

Results inline

Test Navigator

Test Navigator

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Test bundle targets

!Test classes

!Test methods

Click to run

Results inline

Test Navigator

Test Navigator

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Test bundle targets

!Test classes

!Test methods

Click to run

Results inline

Test Navigator

Test Navigator

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Test bundle targets

!Test classes

!Test methods

Click to run

Results inline

Test Navigator

Test Navigator

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Test bundle targets

!Test classes

!Test methods

Click to run

Results inline

Test Navigator

Test Navigator

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Test bundle targets

!Test classes

!Test methods

Click to run

Results inline

Filter failures

Test Navigator

Test Navigator

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Test bundle targets

!Test classes

!Test methods

Click to run

Results inline

Filter failures

Test Navigator

Editor Test Indicators

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Editor Test Indicators

Editor Test Indicators

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Editor Test Indicators

Editor Test Indicators

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Editor Test Indicators

Editor Test Indicators

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Demo

Making your first unit test in Xcode 5

Mike SwinglerXcode Engineer

Overview

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Creating a test target is easy

Add a new test by adding a method

Easy to run tests

!Test navigator

! Editor

Making your first unit test in Xcode 5

Overview

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Creating a test target is easy

Add a new test by adding a method

Easy to run tests

!Test navigator

! Editor

Making your first unit test in Xcode 5

Overview

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Creating a test target is easy

Add a new test by adding a method

Easy to run tests

!Test navigator

! Editor

Making your first unit test in Xcode 5

Overview

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Creating a test target is easy

Add a new test by adding a method

Easy to run tests

!Test navigator

! Editor

Making your first unit test in Xcode 5

Overview

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Creating a test target is easy

Add a new test by adding a method

Easy to run tests

!Test navigator

! Editor

Making your first unit test in Xcode 5

Overview

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Creating a test target is easy

Add a new test by adding a method

Easy to run tests

!Test navigator

! Editor

Making your first unit test in Xcode 5

Assert the Expected

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XCTestAssertions.h

Assert the Expected

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XCTestAssertions.h

XCTFail

XCTAssertNil

XCTAssertNotNil

XCTAssertTrue

XCTAssertTrueNoThrow

XCTAssertFalse

XCTAssertFalseNoThrow

XCTAssertEqualObjects

XCTAssertEquals

XCTAssertEqualsWithAccura

XCTAssertThrows

XCTAssertThrowsSpecific

XCTAssertThrowsSpecificNamed

XCTAssertNoThrow

XCTAssertNoThrowSpecific

XCTAssertNoThrowSpecificNamed

Assert the Expected

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XCTestAssertions.h

XCTAssertNotNil

XCTAssertTrue

XCTAssertFalse

XCTAssertEqualObjects

XCTAssertThrows

Assert the Expected

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XCTestAssertions.h

XCTAssertNot

XCTAssertTrue

XCTAssertFalse

XCTAssertEqualObjects

XCTAssertThrows

Assert the Expected

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XCTestAssertions.h

XCTAssertNotNil

XCTAssertTrueXCTAssertFalse

XCTAssertEqualObjects

XCTAssertThrows

h

Assert the Expected

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XCTestAssertions.h

XCTAssertNotNil

XCTAssertTrue

XCTAssertFalse

XCTAssertEqualObjects

XCTAssertThrows

Expect the Unexpected

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Expect the Unexpected

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Expected success

Expect the Unexpected

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Expected success

! Can come first

Expect the Unexpected

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Expected success

! Can come first

Regressions

Expect the Unexpected

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Expected success

! Can come first

Regressions

Expected failure

Expect the Unexpected

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Expected success

! Can come first

Regressions

Expected failure

! Overflow,!, NaN

Expect the Unexpected

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Expected success

! Can come first

Regressions

Expected failure

! Overflow,!, NaN

! Nil

Expect the Unexpected

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Expected success

! Can come first

Regressions

Expected failure

! Overflow,!, NaN

! Nil! Empty collections

Expect the Unexpected

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Expected success

! Can come first

Regressions

Expected failure

! Overflow,!, NaN

! Nil! Empty collections

! Unexpected types in collections

Expect the Unexpected

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Expected success

! Can come first

Regressions

Expected failure

! Overflow,!, NaN

! Nil! Empty collections

! Unexpected types in collections

! NSError

-setUp

Set Up a Test

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-setUp

-setUp

Set Up a Test

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setUp

Runs before every test method

-setUp

Set Up a Test

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setUp

Runs before every test method

Create shim objects

-setUp

Set Up a Test

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setUp

Runs before every test method

Create shim objects

Load data from .xctest bundle

! [NSBundle bundleForClass:[MyTestClass class]]

-setUp

Set Up a Test

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setUp

Runs before every test method

Create shim objects

Load data from .xctest bundle

! [NSBundle bundleForClass:[MyTestClass class]]

anything you need to setup the world

-setUp

Set Up a Test

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setUp

Runs before every test method

Create shim objects

Load data from .xctest bundle

! [NSBundle bundleForClass:[MyTestClass class]]

anything you need to setup the world

Use -tearDownto perform any cleanup

Test class and methods

How XCTest Works

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@interface ExampleTests : XCTestCase

@implementation ExampleTests

+ (void) setUp { /* Class set-up. */}

+ (void) tearDown { /* Class tear-down. */}

- (void) setUp { /* Test set-up. */}

- (void) tearDown { /* Test tear-down. */}

- (void) testExamplePassing {

XCTAssertTrue(YES);

}

- (void) testExampleFailing {

XCTAssertTrue(NO);

}

Test class and methods

How XCTest Works

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@interface ExampleTests : XCTestCase

@implementation ExampleTests

+ (void) setUp { /* Class set-up. */}

+ (void) tearDown { /* Class tear-down. */}

- (void) setUp { /* Test set-up. */}

- (void) tearDown { /* Test tear-down. */}

- (void) testExamplePassing {

XCTAssertTrue(YES);

}

- (void) testExampleFailing {

XCTAssertTrue(NO);

}

XCTestCase

- (void) test

- (void) test

Test class and methods

How XCTest Works

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@interface ExampleTests : XCTestCase

@implementation ExampleTests

+ (void) setUp { /* Class set-up. */}

+ (void) tearDown { /* Class tear-down. */}

- (void) setUp { /* Test set-up. */}

- (void) tearDown { /* Test tear-down. */}

- (void) testExamplePassing {

XCTAssertTrue(YES);

}

- (void) testExampleFailing {

XCTAssertTrue(NO);

}

Test class and methods

How XCTest Works

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@interface ExampleTests : XCTestCase

@implementation ExampleTests

+ (void) setUp { /* Class set-up. */}

+ (void) tearDown { /* Class tear-down. */}

- (void) setUp { /* Test set-up. */}

- (void) tearDown { /* Test tear-down. */}

- (void) testExamplePassing {

XCTAssertTrue(YES);

}

- (void) testExampleFailing {

XCTAssertTrue(NO);

}

Test class and methods

How XCTest Works

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@interface ExampleTests : XCTestCase

@implementation ExampleTests

+ (void) setUp { /* Class set-up. */}

+ (void) tearDown { /* Class tear-down. */}

- (void) setUp { /* Test set-up. */}

- (void) tearDown { /* Test tear-down. */}

- (void) testExamplePassing {

XCTAssertTrue(YES);

}

- (void) testExampleFailing {

XCTAssertTrue(NO);

}

Test class and methods

How XCTest Works

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@interface ExampleTests : XCTestCase

@implementation ExampleTests

+ (void) setUp { /* Class set-up. */}

+ (void) tearDown { /* Class tear-down. */}

- (void) setUp { /* Test set-up. */}

- (void) tearDown { /* Test tear-down. */}

- (void) testExamplePassing {

XCTAssertTrue(YES);

}

- (void) testExampleFailing {

XCTAssertTrue(NO);

}

Test class and methods

How XCTest Works

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@interface ExampleTests : XCTestCase

@implementation ExampleTests

+ (void) setUp { /* Class set-up. */}

+ (void) tearDown { /* Class tear-down. */}

- (void) setUp { /* Test set-up. */}

- (void) tearDown { /* Test tear-down. */}

- (void) testExamplePassing {

XCTAssertTrue(YES);

}

- (void) testExampleFailing {

XCTAssertTrue(NO);

}

Test class and methods

How XCTest Works

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@interface ExampleTests : XCTestCase

@implementation ExampleTests

+ (void) setUp { /* Class set-up. */}

+ (void) tearDown { /* Class tear-down. */}

- (void) setUp { /* Test set-up. */}

- (void) tearDown { /* Test tear-down. */}

- (void) testExamplePassing {

XCTAssertTrue(YES);

}

- (void) testExampleFailing {

XCTAssertTrue(NO);

}

Test class and methods

How XCTest Works

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@interface ExampleTests : XCTestCase

@implementation ExampleTests

+ (void) setUp { /* Class set-up. */}

+ (void) tearDown { /* Class tear-down. */}

- (void) setUp { /* Test set-up. */}

- (void) tearDown { /* Test tear-down. */}

- (void) testExamplePassing {

XCTAssertTrue(YES);

}

- (void) testExampleFailing {

XCTAssertTrue(NO);

}

Test class and methods

How XCTest Works

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@interface ExampleTests : XCTestCase

@implementation ExampleTests

+ (void) setUp { /* Class set-up. */}

+ (void) tearDown { /* Class tear-down. */}

- (void) setUp { /* Test set-up. */}

- (void) tearDown { /* Test tear-down. */}

- (void) testExamplePassing {

XCTAssertTrue(YES);

}

- (void) testExampleFailing {

XCTAssertTrue(NO);

}

Test class and methods

How XCTest Works

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@interface ExampleTests : XCTestCase

@implementation ExampleTests

+ (void) setUp { /* Class set-up. */}

+ (void) tearDown { /* Class tear-down. */}

- (void) setUp { /* Test set-up. */}

- (void) tearDown { /* Test tear-down. */}

- (void) testExamplePassing {

XCTAssertTrue(YES);

}

- (void) testExampleFailing {

XCTAssertTrue(NO);

}

OCUnit

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OCUnit

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Co-exists with XCTest

OCUnit

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Co-exists with XCTest

You may still need it! iOS 6

OCUnit

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Co-exists with XCTest

You may still need it! iOS 6

Migration tool available

OCUnit

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Co-exists with XCTest

You may still need it! iOS 6

Migration tool available

OCUnit

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Co-exists with XCTest

You may still need it! iOS 6

Migration tool available

OCUnit

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Co-exists with XCTest

You may still need it! iOS 6

Migration tool available

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Debugging Tests

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Demo

Debugging tests

Bino GeorgeXcode Engineer

New test debugging UI

Overview

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Test breakpoint

New test debugging UI

Overview

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Test breakpoint

New test debugging UI

Overview

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Test breakpoint

Test assistant categories

New test debugging UI

b k

Overview

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Test breakpoint

Test assistant categories

New test debugging UI

Overview

T b k i

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Test breakpoint

Test assistant categoriesTest Again command

New test debugging UI

Overview

T t b k i t

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Test breakpoint

Test assistant categoriesTest Again command

New test debugging UI

Overview

T t b k i t

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Test breakpoint

Test assistant categoriesTest Again command

New test debugging UI

Overview

Test breakpoint

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Test breakpoint

Test assistant categoriesTest Again command

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Continuous Integration and Testing

Testing Using OS X Server

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Testing Using OS X Server

Xcode service Bots perform integrations

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Xcode service Bots perform integrations

!

Every time your commit code! On the hour

Testing Using OS X Server

Xcode service bots perform integrations

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Xcode service bots perform integrations

!

Every time your commit code! On the hour

Create a Scheme

! Bots run shared schemes

Testing Using OS X Server

Xcode service bots perform integrations

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SHARED

Xcode service bots perform integrations

!

Every time your commit code! On the hour

Create a Scheme

! Bots run shared schemes

Testing Using OS X Server

Xcode service bots perform integrations

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Xcode service bots perform integrations

!

Every time your commit code! On the hour

Create a Scheme

! Bots run shared schemes

Brings results to you

Many Configurations

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iOS devices

Many Configurations

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iOS devices

iOS devices

Many Configurations

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iOS simulator

iOS devices

Many Configurations

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iOS simulator Different OS versions

iOS devices

Many Configurations

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iOS simulator Different OS versions

OS X

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Demo

Continuous integration with OS X Server

Continuous integration with OS X ServerOverview

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Continuous integration with OS X ServerOverview

Setup shared schemes for bot

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Continuous integration with OS X ServerOverview

Setup shared schemes for bot

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Covers multiple configurations! Devices, OS versions, simulators

Continuous integration with OS X ServerOverview

Setup shared schemes for bot

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Covers multiple configurations! Devices, OS versions, simulators

Bot and test results summary

Command-line Testing

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Command-line Testing

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> xcodebuild test

Command-line Testing

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> xcodebuild test

-scheme MyLibrary

Command-line Testing

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> xcodebuild test

-scheme MyLibrary

-destination 'platform=OS X,arch=x86_64'

Command-line Testing

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> xcodebuild test

-scheme MyLibrary

-destination 'platform=OS X,arch=x86_64'

-destination 'platform=iOS,name=My Development iPod Touch

Command-line Testing

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'

> xcodebuild test

-scheme MyLibrary

-destination 'platform=OS X,arch=x86_64'

-destination 'platform=iOS,name=My Development iPod Touch-destination 'platform=iOS Simulator,name=iPhone

Command-line Testing

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> xcodebuild test

-scheme MyLibrary

-destination 'platform=OS X,arch=x86_64'

-destination 'platform=iOS,name=My Development iPod Touch-destination 'platform=iOS Simulator,name=iPhone,OS=6.1'

Wrap Up

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Wrap Up

What is a unit test?

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Wrap Up

What is a unit test?

I t d i XCT t

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Introducing XCTest

Wrap Up

What is a unit test?

Introducing XCTest

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Introducing XCTest

Writing, running and debugging tests

Wrap Up

What is a unit test?

Introducing XCTest

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Introducing XCTest

Writing, running and debugging tests

!Test Navigator

Wrap Up

What is a unit test?

Introducing XCTest

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Introducing XCTest

Writing, running and debugging tests

!Test Navigator

! Editor indicators

Wrap Up

What is a unit test?

Introducing XCTest

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Introducing XCTest

Writing, running and debugging tests

!Test Navigator

! Editor indicators

!Test failure breakpoint

Wrap Up

What is a unit test?

Introducing XCTest

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Introducing XCTest

Writing, running and debugging tests

!Test Navigator

! Editor indicators

!Test failure breakpoint

! Assistant categories

Wrap Up

What is a unit test?

Introducing XCTest

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143/149

Introducing XCTest

Writing, running and debugging tests

!Test Navigator

! Editor indicators

!Test failure breakpoint

! Assistant categories

!Test Again command

Wrap Up

What is a unit test?

Introducing XCTest

5/27/2018 Testing in XCode 5

144/149

Introducing XCTest

Writing, running and debugging tests

!Test Navigator

! Editor indicators

!Test failure breakpoint

! Assistant categories

!Test Again command

Continuous integration, advanced setups

Wrap Up

What is a unit test?

Introducing XCTest

5/27/2018 Testing in XCode 5

145/149

Introducing XCTest

Writing, running and debugging tests

!Test Navigator

! Editor indicators

!Test failure breakpoint

! Assistant categories!Test Again command

Continuous integration, advanced setups

Testing helps you write better, high quality apps

More Information

Dave DeLongDeveloper Tools Evangelistdelong@apple com

mailto:email@apple.commailto:email@apple.com

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delong@apple.com

Xcode Documentationhttp://developer.apple.com/

Apple Developer Forumshttp://devforums.apple.com

Related Sessions

Continuous Integration with Xcode 5 PresidioTuesday 3:15PM

mailto:email@apple.comhttp://developer.apple.com/uehttp://devforums.apple.com/http://devforums.apple.com/http://devforums.apple.com/http://developer.apple.com/uehttp://developer.apple.com/uemailto:email@apple.commailto:email@apple.com

5/27/2018 Testing in XCode 5

147/149

Related Labs

Tools Lab

Xcode and Continuous Integration Lab Tools Lab AThursday 9:00AM

5/27/2018 Testing in XCode 5

148/149

Tools LabTools LabOngoing

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