added composed model deserialization test

Author: fehguy

modules/swagger-core/src/test/java/io/swagger/models/ComposedModelTest.java

@@ -0,0 +1,50 @@
+package io.swagger.models;
+
+import io.swagger.util.Json;
+import org.testng.annotations.Test;
+
+import static org.testng.Assert.assertNull;
+import static org.testng.Assert.assertTrue;
+
+public class ComposedModelTest {
+    @Test
+    public void testDeserializeComposedModel() throws Exception {
+        String json = "{\n" +
+                "  \"type\": \"object\",\n" +
+                "  \"allOf\": [\n" +
+                "    {\n" +
+                "      \"$ref\": \"#/definitions/Pet\"\n" +
+                "    },\n" +
+                "    {\n" +
+                "      \"$ref\": \"#/definitions/Furry\"\n" +
+                "    },\n" +
+                "    {\n" +
+                "      \"type\": \"object\",\n" +
+                "      \"properties\": {\n" +
+                "        \"propInt\": {\n" +
+                "          \"type\": \"string\"\n" +
+                "        }\n" +
+                "      }\n" +
+                "    },\n" +
+                "    {\n" +
+                "      \"type\": \"object\",\n" +
+                "      \"properties\": {\n" +
+                "        \"propEx\": {\n" +
+                "          \"type\": \"string\"\n" +
+                "        }\n" +
+                "      }\n" +
+                "    }\n" +
+                "  ]\n" +
+                "}";
+
+        Model model = Json.mapper().readValue(json, Model.class);
+        assertTrue(model instanceof ComposedModel);
+        ComposedModel cm = (ComposedModel) model;
+
+        assertTrue(cm.getAllOf().size() == 4);
+        assertTrue(cm.getAllOf().get(2).getProperties().containsKey("propInt"));
+        assertTrue(cm.getAllOf().get(3).getProperties().containsKey("propEx"));
+
+        assertNull(cm.getProperties());
+    }
+}