From a5f65cecb3ee678ba6131d2e698c74061c4e7b89 Mon Sep 17 00:00:00 2001
From: Laurens Westerlaken <laurens.westerlaken@jdriven.com>
Date: Thu, 8 Aug 2024 16:15:53 +0200
Subject: [PATCH] Add testcase as provided in
 https://github.com/openrewrite/rewrite-testing-frameworks/issues/511

---
 ...AssertThrowsToAssertExceptionTypeTest.java | 50 ++++++++++++++++---
 1 file changed, 44 insertions(+), 6 deletions(-)

diff --git a/src/test/java/org/openrewrite/java/testing/assertj/JUnitAssertThrowsToAssertExceptionTypeTest.java b/src/test/java/org/openrewrite/java/testing/assertj/JUnitAssertThrowsToAssertExceptionTypeTest.java
index d9651278b..5d57c99a9 100644
--- a/src/test/java/org/openrewrite/java/testing/assertj/JUnitAssertThrowsToAssertExceptionTypeTest.java
+++ b/src/test/java/org/openrewrite/java/testing/assertj/JUnitAssertThrowsToAssertExceptionTypeTest.java
@@ -76,9 +76,9 @@ void memberReference() {
               import static org.junit.jupiter.api.Assertions.assertThrows;
               import java.util.concurrent.CompletableFuture;
               import java.util.concurrent.ExecutionException;
-
+              
               public class MemberReferenceTest {
-
+              
                   public void throwsWithMemberReference() {
                       CompletableFuture<Boolean> future = new CompletableFuture<>();
                       assertThrows(ExecutionException.class, future::get);
@@ -89,9 +89,9 @@ public void throwsWithMemberReference() {
               import static org.assertj.core.api.AssertionsForClassTypes.assertThatExceptionOfType;
               import java.util.concurrent.CompletableFuture;
               import java.util.concurrent.ExecutionException;
-
+              
               public class MemberReferenceTest {
-
+              
                   public void throwsWithMemberReference() {
                       CompletableFuture<Boolean> future = new CompletableFuture<>();
                       assertThatExceptionOfType(ExecutionException.class).isThrownBy(future::get);
@@ -110,7 +110,7 @@ void assertThrowsAssignment() {
           java(
             """
               import static org.junit.jupiter.api.Assertions.assertThrows;
-
+              
               public class SimpleExpectedExceptionTest {
                   public void throwsExceptionWithSpecificType() {
                       NullPointerException npe = assertThrows(NullPointerException.class, () -> {
@@ -135,7 +135,7 @@ void assertThrowsTernaryAssignment() {
           java(
             """
               import static org.junit.jupiter.api.Assertions.assertThrows;
-
+              
               public class SimpleExpectedExceptionTest {
                   public void throwsExceptionWithSpecificType() {
                       NullPointerException npe = hashCode() == 42
@@ -149,4 +149,42 @@ public void throwsExceptionWithSpecificType() {
           )
         );
     }
+
+    @Test
+    @Issue("https://github.com/openrewrite/rewrite-testing-frameworks/issues/511")
+    void assertThrowsExecutableVariable() {
+        //language=java
+        rewriteRun(
+          java(
+            """
+              import org.junit.jupiter.api.function.Executable;
+              
+              import static org.junit.jupiter.api.Assertions.assertThrows;
+              
+              public class SimpleExpectedExceptionTest {
+                  public void throwsExceptionWithSpecificType() {
+                      Executable executable = () -> {
+                          throw new NullPointerException();
+                      };
+                      assertThrows(NullPointerException.class, executable);
+                  }
+              }
+              """,
+            """
+              import org.assertj.core.api.ThrowableAssert.ThrowingCallable;
+
+              import static org.junit.jupiter.api.Assertions.assertThrows;
+
+              public class SimpleExpectedExceptionTest {
+                  public void throwsExceptionWithSpecificType() {
+                      ThrowingCallable executable = () -> {
+                          throw new NullPointerException();
+                      };
+                      assertThatExceptionOfType(NullPointerException.class).isThrownBy(executable);
+                  }
+              }
+              """
+          )
+        );
+    }
 }