Trisha Gee

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Creating a Maven project

Start by creating a brand-new project that uses Maven as the build tool.

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Importing a Maven project

IntelliJ IDEA understands projects that use Maven and can import them with minimal configuration.

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Introduction

Introduction to working with Maven and Maven projects in IntelliJ IDEA.

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Shortcuts

Shortcuts used in the tutorial.

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The Maven Tool Window

The Maven Tool Window gives you access to goals, dependencies, and more.

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Understanding Dependencies

Adding and visualising dependencies.

Tutorial

Working with Maven

Understand how IntelliJ IDEA integrates with Maven.

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Creating a Project for Spock

Start by creating a new Java project which will be the basis for the rest of this tutorial.

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Data Pipes

Often we want to test the same set of criteria with different sets of data. Data pipes is one mechanism to do this.

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Data Tables

Data tables offer the same functionality as data pipes, but this syntax can sometimes be more readable for more complex sets of data.

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A Simple Assertion

Writing our first Spock test.

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Expecting Exceptions

Tests don't check just the happy paths, sometimes we want to say we're expecting a specific Exception.

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Given, When and Then

See how Spock tests are usually structured.

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Groovy Tips for Java Developers

Groovy's syntax and functionality might be unusual for Java developers to begin with, but it can be very helpful for testing.

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Helper Methods

Sometimes we need to move test code into a separate method. In this section, we look at some tips for this.

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Introduction

Introduction to the tutorial and links to further reading.

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Mocks

We can provide "empty" objects, so we don't have to initialise the whole application to test a section, and we can use mocks to check our code is making the calls we expect.

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Label Flexibility

Spock supports a range of different test labels to help you write the most readable tests.

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Shortcuts used

Finally, let's summarise the shortcuts we've learnt and see links to further information.

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Specifications as Documentation

Spock tests don't just tell the computer how to test the application, they can help developers understand what the application is supposed to do.

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Setup and Teardown

See how to set up, or clean up, test classes and methods in Spock.

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Setting up the Dependencies

Add Spock framework dependencies to the project.

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Spock IntelliJ IDEA Plugin

Add the Spock plugin to IntelliJ IDEA to get some extra help in the IDE.

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Stubs

Stub can provide simple interfaces, so we don't have to initialise the whole application to test a section.

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Verify All

Test frameworks often stop the test at the first failure. Find out how to run all conditions to see which pass and which fail.

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With

Sometimes we want to check more than one value on an object. We can use `with` to do this.

Tutorial

Writing Tests with Spock

Learn about the Spock testing framework by creating a project that uses Spock to unit test Java code.

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Running Gradle tasks

There are several convenient ways to run Gradle tasks from IntelliJ IDEA.

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Gradle dependencies

Add or update dependencies in your build.gradle file.

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Creating a Gradle project

Start by creating a brand-new project that uses Gradle as the build tool.

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Gradle Settings

Where to change IntelliJ IDEA's settings fo Gradle.

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The Gradle Tool Window

How to find the Gradle tool window.

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Group ID and version number

How to set up or change a project's group ID and version number.

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Gradle Wrapper

Useful information for working with projects that use the Gradle Wrapper.

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Introduction

Introduction to working with Gradle and Gradle projects in IntelliJ IDEA.

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Setting an abbreviation

Use a unique abbreviation to quickly navigate to the Gradle tool window.

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Shortcuts

Shortcuts used in the tutorial.

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Opening a Gradle project

What you need to know to get started with an existing Gradle project.

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Source set directories

Understand how IntelliJ IDEA deals with Gradle's source set directories.

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The build.gradle file

See how IntelliJ IDEA makes it easier to work with Gradle's configuration file.

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Syncing and reloading

Sometimes you may need to encourage IntelliJ IDEA to reload any changes from the Gradle configuration.

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Tour of a Gradle project

Take a look around a standard Gradle project to understand it better.

Tutorial

Working with Gradle

Understand how IntelliJ IDEA integrates with Gradle.

Tip

Prevent a Package Depending Upon Another

Enforce architecture rules, such as data access layers not depending upon UI layers.

Tip

Profile your Application

See how your application is performing with the built-in profiler.

Tip

Run your code with Docker, SSH or WSL

Set a Run Target to change where your code runs.

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Tips for Working with JetBrains Space

Space is an all-in-one collaboration tool, including chat, code repository, code review, issue tracking, and much more.

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Code Reviews with Space

Perform code reviews with Space without leaving the IDE.

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Generate UML Diagrams for your Kotlin code

JVM developers working with Kotlin code can create UML diagrams for their Kotlin classes, just like they could with Java classes.

Tip

Lightweight Inspection Profile on Commit

Fully customise the checks you must perform before you commit your changes to version control.

Tip

Create a Correct Parent Sealed Class

Sealed types are a new idea for Java developers, let IntelliJ IDEA guide you in how to use them.

Tip

Create a Correct Child Sealed Class

Sealed types are a new idea for Java developers, let IntelliJ IDEA guide you in how to create child classes.

Tip

Preview HTML updates in Real Time

See what your changes look like as you make them to minimise errors.

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Turn on Preview Features to try new Java Features

The latest versions of Java contain "Preview Features", features that are fully functional but require developer feedback. Try them out in IntelliJ IDEA.