build: add constructor tests for DI vs No_DI controllers

jknack · jknack · commit 6db1299da6e3 · 2026-03-21T12:22:59.000-03:00
diff --git a/modules/jooby-apt/src/test/java/tests/instance/DIController.java b/modules/jooby-apt/src/test/java/tests/instance/DIController.java
@@ -0,0 +1,23 @@
+/*
+ * Jooby https://jooby.io
+ * Apache License Version 2.0 https://jooby.io/LICENSE.txt
+ * Copyright 2014 Edgar Espina
+ */
+package tests.instance;
+
+import io.jooby.annotation.GET;
+import jakarta.inject.Inject;
+
+public class DIController {
+  private final NoDIController controller;
+
+  @Inject
+  public DIController(NoDIController controller) {
+    this.controller = controller;
+  }
+
+  @GET("/di")
+  public String di() {
+    return controller.noDI();
+  }
+}
diff --git a/modules/jooby-apt/src/test/java/tests/instance/DefaultControllerTest.java b/modules/jooby-apt/src/test/java/tests/instance/DefaultControllerTest.java
@@ -0,0 +1,45 @@
+/*
+ * Jooby https://jooby.io
+ * Apache License Version 2.0 https://jooby.io/LICENSE.txt
+ * Copyright 2014 Edgar Espina
+ */
+package tests.instance;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import org.junit.jupiter.api.Test;
+
+import io.jooby.apt.ProcessorRunner;
+
+public class DefaultControllerTest {
+
+  @Test
+  public void shouldGenerateDIDefaultConstructor() throws Exception {
+    new ProcessorRunner(new DIController(new NoDIController()))
+        .withSourceCode(
+            source -> {
+              assertThat(source)
+                  .containsIgnoringWhitespaces(
+                      """
+                      public DIController_() {
+                        this(DIController.class);
+                      }
+                      """);
+            });
+  }
+
+  @Test
+  public void shouldGenerateDefaultConstructorWithoutDI() throws Exception {
+    new ProcessorRunner(new NoDIController())
+        .withSourceCode(
+            source -> {
+              assertThat(source)
+                  .containsIgnoringWhitespaces(
+                      """
+                      public NoDIController_() {
+                        this(io.jooby.SneakyThrows.singleton(NoDIController::new));
+                      }
+                      """);
+            });
+  }
+}
diff --git a/modules/jooby-apt/src/test/java/tests/instance/NoDIController.java b/modules/jooby-apt/src/test/java/tests/instance/NoDIController.java
@@ -0,0 +1,16 @@
+/*
+ * Jooby https://jooby.io
+ * Apache License Version 2.0 https://jooby.io/LICENSE.txt
+ * Copyright 2014 Edgar Espina
+ */
+package tests.instance;
+
+import io.jooby.annotation.GET;
+
+public class NoDIController {
+
+  @GET("/no-di")
+  public String noDI() {
+    return "no-di";
+  }
+}
