1 files changed, 117 insertions, 0 deletions
diff --git a/gson/src/test/java/org/onap/policy/common/gson/MapDoubleAdapterFactoryTest.java b/gson/src/test/java/org/onap/policy/common/gson/MapDoubleAdapterFactoryTest.java
new file mode 100644
index 00000000..7171d262
--- /dev/null
+++ b/gson/src/test/java/org/onap/policy/common/gson/MapDoubleAdapterFactoryTest.java
@@ -0,0 +1,117 @@
+/*
+ * ============LICENSE_START=======================================================
+ * ONAP
+ * ================================================================================
+ * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
+ * ================================================================================
+ * 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
+ *
+ *      http://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.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.onap.policy.common.gson;
+
+import static org.junit.Assert.assertEquals;
+
+import com.google.gson.Gson;
+import com.google.gson.GsonBuilder;
+import java.util.HashMap;
+import java.util.LinkedHashMap;
+import java.util.Map;
+import org.junit.Test;
+
+public class MapDoubleAdapterFactoryTest {
+    private static Gson gson = new GsonBuilder().registerTypeAdapterFactory(new MapDoubleAdapterFactory()).create();
+
+    @Test
+    @SuppressWarnings("unchecked")
+    public void test() {
+        MyMap map = new MyMap();
+        map.props = new HashMap<>();
+        map.props.put("plainString", "def");
+        map.props.put("posInt", 10);
+        map.props.put("negInt", -10);
+        map.props.put("doubleVal", 12.5);
+        map.props.put("posLong", 100000000000L);
+        map.props.put("negLong", -100000000000L);
+
+        Map<String, Object> nested = new LinkedHashMap<>();
+        map.props.put("nestedMap", nested);
+        nested.put("nestedString", "world");
+        nested.put("nestedInt", 50);
+
+        String json = gson.toJson(map);
+
+        map.props.clear();
+        map = gson.fromJson(json, MyMap.class);
+
+        assertEquals(json, gson.toJson(map));
+
+        assertEquals(10, map.props.get("posInt"));
+        assertEquals(-10, map.props.get("negInt"));
+        assertEquals(100000000000L, map.props.get("posLong"));
+        assertEquals(-100000000000L, map.props.get("negLong"));
+        assertEquals(12.5, map.props.get("doubleVal"));
+        assertEquals(nested, map.props.get("nestedMap"));
+
+        nested = (Map<String, Object>) map.props.get("nestedMap");
+        assertEquals(50, nested.get("nestedInt"));
+    }
+
+    @Test
+    public void test_ValueIsNotObject() {
+        MyDoubleMap map = new MyDoubleMap();
+        map.props = new LinkedHashMap<>();
+        map.props.put("plainDouble", 13.5);
+        map.props.put("doubleAsInt", 100.0);
+
+        String json = gson.toJson(map);
+
+        map.props.clear();
+        map = gson.fromJson(json, MyDoubleMap.class);
+
+        // everything should still be Double - check by simply accessing
+        map.props.get("plainDouble");
+        map.props.get("doubleAsInt");
+    }
+
+    @Test
+    public void test_KeyIsNotString() {
+        MyObjectMap map = new MyObjectMap();
+
+        map.props = new LinkedHashMap<>();
+        map.props.put("plainDouble2", 14.5);
+        map.props.put("doubleAsInt2", 200.0);
+
+        String json = gson.toJson(map);
+
+        map.props.clear();
+        map = gson.fromJson(json, MyObjectMap.class);
+
+        // everything should still be Double
+        assertEquals(14.5, map.props.get("plainDouble2"));
+        assertEquals(200.0, map.props.get("doubleAsInt2"));
+    }
+
+    private static class MyMap {
+        private Map<String, Object> props;
+    }
+
+    private static class MyDoubleMap {
+        private Map<String, Double> props;
+    }
+
+    private static class MyObjectMap {
+        private Map<Object, Object> props;
+    }
+
+}