Improve test

src/test/java/org/openrewrite/staticanalysis/CatchClauseOnlyRethrowsTest.java

@@ -16,20 +16,14 @@
 package org.openrewrite.staticanalysis;
 
 import org.junit.jupiter.api.Test;
-import org.openrewrite.DocumentExample;
-import org.openrewrite.FileAttributes;
-import org.openrewrite.InMemoryExecutionContext;
-import org.openrewrite.Tree;
+import org.openrewrite.*;
 import org.openrewrite.csharp.tree.Cs;
+import org.openrewrite.java.JavaVisitor;
 import org.openrewrite.java.tree.*;
 import org.openrewrite.marker.Markers;
 import org.openrewrite.test.RecipeSpec;
 import org.openrewrite.test.RewriteTest;
 
-import java.nio.file.Path;
-import java.util.Collections;
-import java.util.List;
-
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.openrewrite.java.Assertions.java;
 
@@ -340,40 +334,52 @@ void foo() throws IOException {
 
     @Test
     void verifyCsharpImplicitThrow() {
-        Cs.CompilationUnit compilationUnit = new Cs.CompilationUnit(Tree.randomId(), Space.EMPTY,
-          Markers.EMPTY, Path.of("test.cs"),
-          new FileAttributes(null, null, null, true, true, true, 0l),
-          null, false, null, null, null, null,
-          List.of(JRightPadded.build(
-            new J.ClassDeclaration(Tree.randomId(), Space.EMPTY, Markers.EMPTY,
-              Collections.emptyList(), Collections.emptyList(),
-              new J.ClassDeclaration.Kind(Tree.randomId(), Space.EMPTY, Markers.EMPTY, Collections.emptyList(), J.ClassDeclaration.Kind.Type.Class),
-              new J.Identifier(Tree.randomId(), Space.EMPTY, Markers.EMPTY, Collections.emptyList(), "doSome", null, null),
-              null, null, null, null, null,
-              new J.Block(Tree.randomId(), Space.EMPTY, Markers.EMPTY, JRightPadded.build(false),
-                List.of(JRightPadded.build(new J.Try(Tree.randomId(), Space.EMPTY, Markers.EMPTY, null,
-                  new J.Block(Tree.randomId(), Space.EMPTY, Markers.EMPTY, JRightPadded.build(false),
-                    List.of(JRightPadded.build(new J.Throw(Tree.randomId(), Space.EMPTY, Markers.EMPTY, new J.NewClass(
-                      Tree.randomId(), Space.EMPTY, Markers.EMPTY, null, Space.EMPTY, TypeTree.build("java.lang.IllegalAccessException"), JContainer.empty(), null, null)))),
-                    Space.EMPTY),
-                  List.of(new J.Try.Catch(Tree.randomId(), Space.EMPTY, Markers.EMPTY, new J.ControlParentheses<J.VariableDeclarations>(Tree.randomId(), Space.EMPTY, Markers.EMPTY,
-                    JRightPadded.build(new J.VariableDeclarations(Tree.randomId(), Space.EMPTY, Markers.EMPTY, Collections.emptyList(), Collections.emptyList(), TypeTree.build("java.lang.IllegalAccessException"), null, List.of(), List.of(JRightPadded.build(
-                      new J.VariableDeclarations.NamedVariable(Tree.randomId(), Space.EMPTY, Markers.EMPTY,
-                        new J.Identifier(Tree.randomId(), Space.SINGLE_SPACE, Markers.EMPTY, Collections.emptyList(), "e", null, null),
-                        List.of(), null, null)))))),
-                    new J.Block(Tree.randomId(), Space.EMPTY, Markers.EMPTY, JRightPadded.build(false),
-                      List.of(JRightPadded.build(new J.Throw(Tree.randomId(), Space.EMPTY, Markers.EMPTY, new J.Empty(Tree.randomId(), Space.EMPTY, Markers.EMPTY)))),
-                      Space.EMPTY))),
-                  null))),
-                Space.EMPTY),
-              null)))
-          , Space.EMPTY);
-
-        assertThat(compilationUnit.getMembers().get(0)).isInstanceOf(J.ClassDeclaration.class);
-        assertThat(((J.ClassDeclaration)compilationUnit.getMembers().get(0)).getBody().getStatements().get(0)).isInstanceOf(J.Try.class);
-
-        Cs.CompilationUnit output = (Cs.CompilationUnit) new CatchClauseOnlyRethrows().getVisitor().visit(compilationUnit, new InMemoryExecutionContext());
-        assertThat(output.getMembers().get(0)).isInstanceOf(J.ClassDeclaration.class);
-        assertThat(((J.ClassDeclaration)output.getMembers().get(0)).getBody().getStatements().get(0)).isInstanceOf(J.Throw.class);
+        rewriteRun(
+          spec -> spec.recipe(Recipe.noop()),
+          //language=java
+          java(
+            """
+              class A {
+                  void foo() throws IllegalAccessException {
+                      try {
+                          throw new IllegalAccessException();
+                      } catch (Exception e) {
+                          throw e;
+                      }
+                  }
+              }"""
+            , spec -> spec.beforeRecipe(compUnit -> {
+                  Cs.CompilationUnit cSharpCompUnit = (Cs.CompilationUnit) new JavaVisitor<ExecutionContext>() {
+                    @Override
+                    public J visitThrow(J.Throw thrown, ExecutionContext executionContext) {
+                        if (thrown.getException() instanceof J.Identifier) {
+                            return thrown.withException(new J.Empty(Tree.randomId(), Space.EMPTY, Markers.EMPTY));
+                        }
+                        return thrown;
+                    }
+                }.visit(JavaToCsharp.compilationUnit(compUnit), new InMemoryExecutionContext());
+
+                  assertThat(cSharpCompUnit.getMembers().get(0)).isInstanceOf(J.ClassDeclaration.class);
+                  assertThat(((J.ClassDeclaration)cSharpCompUnit.getMembers().get(0)).getBody().getStatements().get(0)).isInstanceOf(J.MethodDeclaration.class);
+                  J.MethodDeclaration md = (J.MethodDeclaration) ((J.ClassDeclaration)cSharpCompUnit.getMembers().get(0)).getBody().getStatements().get(0);
+                  assertThat(md.getBody().getStatements().get(0)).isInstanceOf(J.Try.class);
+
+                  Cs.CompilationUnit output = (Cs.CompilationUnit) new CatchClauseOnlyRethrows().getVisitor().visit(cSharpCompUnit, new InMemoryExecutionContext());
+
+                  assertThat(output.getMembers().get(0)).isInstanceOf(J.ClassDeclaration.class);
+                  assertThat(((J.ClassDeclaration)output.getMembers().get(0)).getBody().getStatements().get(0)).isInstanceOf(J.MethodDeclaration.class);
+                   md = (J.MethodDeclaration) ((J.ClassDeclaration)output.getMembers().get(0)).getBody().getStatements().get(0);
+                  assertThat(md.getBody().getStatements().get(0)).isInstanceOf(J.Throw.class);
+            }
+            )
+          )
+        );
+    }
+
+    public JavaVisitor<ExecutionContext> getJavaToCsharpVisitor() {
+        return new JavaVisitor<ExecutionContext>() {
+
+
+        };
     }
 }

src/test/java/org/openrewrite/staticanalysis/JavaToCsharp.java

@@ -0,0 +1,32 @@
+/*
+ * 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.staticanalysis;
+
+import org.openrewrite.csharp.tree.Cs;
+import org.openrewrite.java.tree.J;
+import org.openrewrite.java.tree.JRightPadded;
+import org.openrewrite.java.tree.Statement;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class JavaToCsharp {
+
+    public static Cs.CompilationUnit compilationUnit(J.CompilationUnit cu) {
+        return new Cs.CompilationUnit(cu.getId(), cu.getPrefix(), cu.getMarkers(), cu.getSourcePath(),
+          cu.getFileAttributes(), cu.getCharset().name(), cu.isCharsetBomMarked(), cu.getChecksum(), List.of(), List.of(), List.of(), cu.getClasses().stream().map(Statement.class::cast).map(cd -> JRightPadded.build(cd)).collect(Collectors.toList()), cu.getEof());
+    }
+}