From bea4642665f2a8ead12be8944555409ea8ec68fd Mon Sep 17 00:00:00 2001
From: Fiete Ostkamp <F.Ostkamp@web.de>
Date: Wed, 14 Aug 2024 20:24:01 +0200
Subject: [PATCH 1/2] add basic recipe and test classes

---
 .../test/ExpectedExceptionToAssertThrows.java | 19 ++++++
 .../ExpectedExceptionToAssertThrowsTest.java  | 64 +++++++++++++++++++
 2 files changed, 83 insertions(+)
 create mode 100644 src/main/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrows.java
 create mode 100644 src/test/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrowsTest.java

diff --git a/src/main/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrows.java b/src/main/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrows.java
new file mode 100644
index 00000000..f88a144b
--- /dev/null
+++ b/src/main/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrows.java
@@ -0,0 +1,19 @@
+package org.openrewrite.java.spring.test;
+
+import org.openrewrite.NlsRewrite.Description;
+import org.openrewrite.NlsRewrite.DisplayName;
+import org.openrewrite.Recipe;
+
+public class ExpectedExceptionToAssertThrows extends Recipe {
+
+    @Override
+    public @DisplayName String getDisplayName() {
+        return "Migrate JUnit 4's ExpectedException";
+    }
+
+    @Override
+    public @Description String getDescription() {
+        return "Replace JUnit 4's ExpectedException with JUnit 5's assertThrows.";
+    }
+    
+}
diff --git a/src/test/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrowsTest.java b/src/test/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrowsTest.java
new file mode 100644
index 00000000..fb4a6722
--- /dev/null
+++ b/src/test/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrowsTest.java
@@ -0,0 +1,64 @@
+package org.openrewrite.java.spring.test;
+
+import static org.openrewrite.java.Assertions.java;
+import org.junit.jupiter.api.Test;
+import org.openrewrite.DocumentExample;
+import org.openrewrite.InMemoryExecutionContext;
+import org.openrewrite.java.JavaParser;
+import org.openrewrite.test.RecipeSpec;
+import org.openrewrite.test.RewriteTest;
+
+public class ExpectedExceptionToAssertThrowsTest implements RewriteTest {
+
+    @Override
+    public void defaults(RecipeSpec spec) {
+        spec.recipe(new ExpectedExceptionToAssertThrows())
+          .parser(JavaParser.fromJavaVersion()
+            .classpathFromResources(new InMemoryExecutionContext(), "spring-boot-test", "spring-test")
+          );
+    }
+
+    @Test
+    @DocumentExample
+    void thatExpectedExceptionIsMigratedToAssertThrows() {
+        rewriteRun(
+          //language=java
+          java(
+            """
+              import org.junit.Rule;
+              import org.junit.Test;
+              import org.junit.rules.ExpectedException;
+
+              class SomeTest {
+
+                  @Rule
+                  public ExpectedException thrown = ExpectedException.none();
+
+                  @Test
+                  public void test() {
+                      thrown.expectMessage("exception");
+                      throw new RuntimeException("exception");
+                  }
+              } 
+              """,
+            """
+              import org.junit.Rule;
+              import org.junit.Test;
+              import org.junit.rules.ExpectedException;
+
+              class SomeTest {
+
+                  @Rule
+                  public ExpectedException thrown = ExpectedException.none();
+
+                  @Test
+                  public void test() {
+                      thrown.expectMessage("exception");
+                      throw new RuntimeException("exception");
+                  }
+              }    
+              """
+          )
+        );
+    }
+}

From 7e3a39ca8dec428cf47f4dbd9b895066444b3b77 Mon Sep 17 00:00:00 2001
From: Tim te Beek <timtebeek@gmail.com>
Date: Thu, 15 Aug 2024 12:00:40 +0200
Subject: [PATCH 2/2] Apply suggestions from code review

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
---
 .../test/ExpectedExceptionToAssertThrows.java | 15 +++++++++++++
 .../ExpectedExceptionToAssertThrowsTest.java  | 21 ++++++++++++++++---
 2 files changed, 33 insertions(+), 3 deletions(-)

diff --git a/src/main/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrows.java b/src/main/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrows.java
index f88a144b..4ac7fd24 100644
--- a/src/main/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrows.java
+++ b/src/main/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrows.java
@@ -1,3 +1,18 @@
+/*
+ * Copyright 2024 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * https://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 package org.openrewrite.java.spring.test;
 
 import org.openrewrite.NlsRewrite.Description;
diff --git a/src/test/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrowsTest.java b/src/test/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrowsTest.java
index fb4a6722..b4e305b3 100644
--- a/src/test/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrowsTest.java
+++ b/src/test/java/org/openrewrite/java/spring/test/ExpectedExceptionToAssertThrowsTest.java
@@ -1,6 +1,19 @@
-package org.openrewrite.java.spring.test;
+/*
+ * Copyright 2024 the original author or authors.
+ * <p>
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * <p>
+ * https://www.apache.org/licenses/LICENSE-2.0
+ * <p>
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
 
-import static org.openrewrite.java.Assertions.java;
 import org.junit.jupiter.api.Test;
 import org.openrewrite.DocumentExample;
 import org.openrewrite.InMemoryExecutionContext;
@@ -8,7 +21,9 @@
 import org.openrewrite.test.RecipeSpec;
 import org.openrewrite.test.RewriteTest;
 
-public class ExpectedExceptionToAssertThrowsTest implements RewriteTest {
+import static org.openrewrite.java.Assertions.java;
+
+class ExpectedExceptionToAssertThrowsTest implements RewriteTest {
 
     @Override
     public void defaults(RecipeSpec spec) {