TextEdit

A small Java-based text editor built with SWT and Gradle. This repository contains the source for the TextEdit application, unit and integration tests, and Gradle build configuration (including a wrapper) so you can build, run and package the app locally.

Key points

• Java target: Java 25
• UI toolkit: SWT (Standard Widget Toolkit)
• Build system: Gradle (use the bundled Gradle wrapper)

Requirements

• JDK 25 installed and available on your PATH
• Git (optional, for cloning and source control)

Quick start

• On Unix/macOS:

  ./gradlew run

• On Windows (PowerShell / cmd):

  gradlew.bat run

Build

• Build, run tests, and assemble artifacts:

  ./gradlew build

• Clean build artifacts:

  ./gradlew clean

Run

• Run the application locally:

  ./gradlew run

Testing

• The project uses JUnit 5 and AssertJ for tests.

• Run all tests:

  ./gradlew test

• Run only unit tests or integration tests:

  ./gradlew unitTest
  ./gradlew integrationTest

• Run a single test class or method (example):

  ./gradlew test --tests "io.github.seerainer.textedit.UndoManagerTest"
  ./gradlew test --tests "io.github.seerainer.textedit.UndoManagerTest.testPush"

Native image

• Build a native executable (GraalVM native image required):

  ./gradlew nativeCompile

Troubleshooting

• If you see SWT errors, ensure you're running a compatible JDK and have the appropriate SWT native libraries for your platform.
• If Gradle or the wrapper fails, verify JAVA_HOME points to a Java 25 JDK.