Merge pull request #392 from izeye

* gh-392:
  Polish "Broaden Checkstyle rule for AssertJ assertion enforcement"
  Broaden Checkstyle rule for AssertJ assertion enforcement

Closes gh-392

Author: wilkinsona

spring-javaformat/spring-javaformat-checkstyle/src/main/resources/io/spring/javaformat/checkstyle/spring-checkstyle.xml

@@ -128,7 +128,7 @@
 		</module>
 		<module name="com.puppycrawl.tools.checkstyle.checks.regexp.RegexpSinglelineJavaCheck">
 			<property name="maximum" value="0"/>
-			<property name="format" value="org\.junit\.(Assert|jupiter\.api\.Assertions)\.assert" />
+			<property name="format" value="org\.junit\.(Assert|jupiter\.api\.Assertions)" />
 			<property name="message"
 				value="Please use AssertJ imports." />
 			<property name="ignoreComments" value="true" />

spring-javaformat/spring-javaformat-checkstyle/src/test/resources/check/AssertJBadAssertImport.txt

@@ -0,0 +1,2 @@
++Please use AssertJ imports.
++3 errors

spring-javaformat/spring-javaformat-checkstyle/src/test/resources/check/AssertJBadAssertionsImport.txt

@@ -0,0 +1,2 @@
++Please use AssertJ imports.
++3 errors

spring-javaformat/spring-javaformat-checkstyle/src/test/resources/source/AssertJBadAssertImport.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2017-2023 the original author or authors.
+ *
+ * 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
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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 org.junit.Assert;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+
+/**
+ * Import of banned org.junit.Assert.
+ *
+ * @author Andy Wilkinson
+ */
+public class AssertJBadAssertImport {
+
+	@Test
+	void useTheImports() {
+		assertTrue(true);
+		Assert.assertFalse(false);
+		fail("oops");
+	}
+
+}

spring-javaformat/spring-javaformat-checkstyle/src/test/resources/source/AssertJBadAssertionsImport.java

@@ -0,0 +1,37 @@
+/*
+ * Copyright 2017-2023 the original author or authors.
+ *
+ * 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
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * 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 org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+import static org.junit.jupiter.api.Assertions.assertTrue;
+import static org.junit.jupiter.api.Assertions.fail;
+
+/**
+ * Import of banned org.junit.jupiter.api.Assertions.
+ *
+ * @author Andy Wilkinson
+ */
+public class AssertJBadAssertionsImport {
+
+	@Test
+	void useTheImports() {
+		assertTrue(true);
+		Assertions.assertFalse(false);
+		fail("oops");
+	}
+
+}