diff --git a/src/main/java/org/openrewrite/java/testing/assertj/IsEqualToEmptyString.java b/src/main/java/org/openrewrite/java/testing/assertj/IsEqualToEmptyString.java new file mode 100644 index 000000000..168c14324 --- /dev/null +++ b/src/main/java/org/openrewrite/java/testing/assertj/IsEqualToEmptyString.java @@ -0,0 +1,64 @@ +/* + * Copyright 2024 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.
+ */
+package org.openrewrite.java.testing.assertj;
+
+import org.openrewrite.ExecutionContext;
+import org.openrewrite.Preconditions;
+import org.openrewrite.Recipe;
+import org.openrewrite.TreeVisitor;
+import org.openrewrite.java.JavaIsoVisitor;
+import org.openrewrite.java.MethodMatcher;
+import org.openrewrite.java.search.UsesMethod;
+import org.openrewrite.java.tree.J;
+import org.openrewrite.java.tree.JavaType;
+
+import java.util.Collections;
+
+public class IsEqualToEmptyString extends Recipe {
+
+ private static final MethodMatcher IS_EQUAL_TO = new MethodMatcher("org.assertj.core.api.AbstractStringAssert isEqualTo(java.lang.String)");
+
+ @Override
+ public String getDisplayName() {
+ return "Convert `assertThat(String).isEqualTo(\"\")` to `isEmpty()`";
+ }
+
+ @Override
+ public String getDescription() {
+ return "Adopt idiomatic AssertJ assertion for empty Strings.";
+ }
+
+ @Override
+ public TreeVisitor, ExecutionContext> getVisitor() {
+ return Preconditions.check(
+ new UsesMethod<>(IS_EQUAL_TO),
+ new JavaIsoVisitor
+ * 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.
+ */
+package org.openrewrite.java.testing.assertj;
+
+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;
+
+import static org.openrewrite.java.Assertions.java;
+
+class IsEqualToEmptyStringTest implements RewriteTest {
+
+ @Override
+ public void defaults(RecipeSpec spec) {
+ spec
+ .parser(JavaParser.fromJavaVersion().classpathFromResources(new InMemoryExecutionContext(), "assertj-core-3.24"))
+ .recipe(new IsEqualToEmptyString());
+ }
+
+ @DocumentExample
+ @Test
+ void convertsIsEqualToEmptyString() {
+ rewriteRun(
+ //language=java
+ java(
+ """
+ import static org.assertj.core.api.Assertions.assertThat;
+ class Test {
+ void test() {
+ assertThat("test").isEqualTo("");
+ }
+ }
+ """,
+ """
+ import static org.assertj.core.api.Assertions.assertThat;
+ class Test {
+ void test() {
+ assertThat("test").isEmpty();
+ }
+ }
+ """
+ )
+ );
+ }
+}