issue #536 UnirestInstance should implement AutoCloseabl

unirest/src/main/java/kong/unirest/core/UnirestInstance.java

@@ -30,7 +30,7 @@
  * and its clients where all the action happens.
  * This class is suitable for mocking.
  */
-public class UnirestInstance {
+public class UnirestInstance implements AutoCloseable {
 
     private final Config config;
 
@@ -148,6 +148,7 @@ public HttpRequestWithBody request(String method, String url) {
      * used with try-with-resource. This will alleviate the need to manually
      * call shutDown as it will be done automatically.
      */
+    @Override
     public void close() {
         reset(true);
     }

unirest/src/test/java/kong/unirest/core/UnirestInstanceTest.java

@@ -0,0 +1,43 @@
+/**
+ * The MIT License
+ *
+ * Copyright for portions of unirest-java are held by Kong Inc (c) 2013.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+package kong.unirest.core;
+
+import org.junit.jupiter.api.Test;
+
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.verify;
+
+class UnirestInstanceTest {
+
+    @Test
+    void canBeUsedWithTryWithResource() {
+        var mock = mock(UnirestInstance.class);
+
+        try(UnirestInstance instance = mock){ }
+
+        verify(mock).close();
+    }
+}