ObjectPostProcessor Tests groovy->java

Issue gh-4939

config/src/test/java/org/springframework/security/config/annotation/ObjectPostProcessorTests.java

@@ -0,0 +1,53 @@
+/*
+ * Copyright 2002-2019 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.springframework.security.config.annotation;
+
+import java.util.ArrayList;
+import java.util.LinkedList;
+import java.util.List;
+
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * @author Rob Winch
+ * @author Josh Cummings
+ *
+ */
+public class ObjectPostProcessorTests {
+
+	@Test
+	public void convertTypes() {
+		assertThat((Object) PerformConversion.perform(new ArrayList<>()))
+				.isInstanceOf(LinkedList.class);
+	}
+
+	static class ListToLinkedListObjectPostProcessor implements ObjectPostProcessor<List<?>> {
+
+		public <O extends List<?>> O postProcess(O l) {
+			return (O) new LinkedList(l);
+		}
+	}
+
+	static class PerformConversion {
+		public static List<?> perform(ArrayList<?> l) {
+			return new ListToLinkedListObjectPostProcessor().postProcess(l);
+		}
+	}
+}
+
+

config/src/test/java/org/springframework/security/config/annotation/SecurityConfigurerAdapterClosureTests.java

@@ -0,0 +1,66 @@
+/*
+ * Copyright 2002-2019 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.springframework.security.config.annotation;
+
+
+import java.util.ArrayList;
+import java.util.List;
+
+import org.junit.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
+
+/**
+ * @author Rob Winch
+ * @author Josh Cummings
+ *
+ */
+public class SecurityConfigurerAdapterClosureTests {
+	ConcereteSecurityConfigurerAdapter conf = new ConcereteSecurityConfigurerAdapter();
+
+	@Test
+	public void addPostProcessorClosureWhenPostProcessThenGetsApplied() throws Exception {
+		SecurityBuilder<Object> builder = mock(SecurityBuilder.class);
+		this.conf.addObjectPostProcessor(new ObjectPostProcessor<List<String>>() {
+			@Override
+			public <O extends List<String>> O postProcess(O l) {
+				l.add("a");
+				return l;
+			}
+		});
+
+		this.conf.init(builder);
+		this.conf.configure(builder);
+
+		assertThat(this.conf.list).contains("a");
+	}
+
+	static class ConcereteSecurityConfigurerAdapter extends
+			SecurityConfigurerAdapter<Object, SecurityBuilder<Object>> {
+		private List<Object> list = new ArrayList<Object>();
+
+		@Override
+		public void configure(SecurityBuilder<Object> builder) throws Exception {
+			this.list = postProcess(this.list);
+		}
+
+		public ConcereteSecurityConfigurerAdapter list(List<Object> l) {
+			this.list = l;
+			return this;
+		}
+	}
+}