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public interface AssertDelegateTarget
A marker interface that can be used to wrap your assertion within assertThat method for better readability.
Consider the following MyButton and MyButtonAssert classes:
public class MyButton extends JButton { private boolean blinking; public boolean isBlinking() { return this.blinking; } public void setBlinking(boolean blink) { this.blinking = blink; } } private static class MyButtonAssert implements AssertDelegateTarget { private MyButton button; MyButtonAssert(MyButton button) { this.button = button; } void isBlinking() { // standard assertion from core Assertions.assertThat assertThat(button.isBlinking()).isTrue(); } void isNotBlinking() { // standard assertion from core Assertions.assertThat assertThat(button.isBlinking()).isFalse(); } }As MyButtonAssert implements AssertDelegateTarget, you can use
assertThat(buttonAssert).isBlinking();
instead of buttonAssert.isBlinking();
to have easier to read assertions.
@Test public void AssertDelegateTarget_example() { MyButton button = new MyButton(); MyButtonAssert buttonAssert = new MyButtonAssert(button); // you can encapsulate MyButtonAssert assertions methods within assertThat assertThat(buttonAssert).isNotBlinking(); // same as : buttonAssert.isNotBlinking(); button.setBlinking(true); assertThat(buttonAssert).isBlinking(); // same as : buttonAssert.isBlinking(); }
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