diff --git a/samples/client/petstore/java/src/test/java/io/swagger/client/auth/ApiKeyAuthTest.java b/samples/client/petstore/java/src/test/java/io/swagger/client/auth/ApiKeyAuthTest.java
new file mode 100644
index 00000000000..13289a7c495
--- /dev/null
+++ b/samples/client/petstore/java/src/test/java/io/swagger/client/auth/ApiKeyAuthTest.java
@@ -0,0 +1,40 @@
+package io.swagger.client.auth;
+
+import java.util.Map;
+import java.util.HashMap;
+
+import static org.junit.Assert.*;
+import org.junit.*;
+
+public class ApiKeyAuthTest {
+  @Test
+  public void testProcessParamsInQuery() {
+    Map<String, String> queryParams = new HashMap<String, String>();
+    Map<String, String> headerParams = new HashMap<String, String>();
+
+    ApiKeyAuth auth = new ApiKeyAuth("query", "api_key");
+    auth.setApiKey("my-api-key");
+    auth.processParams(queryParams, headerParams);
+
+    assertEquals(1, queryParams.size());
+    assertEquals("my-api-key", queryParams.get("api_key"));
+    // no changes to header parameters
+    assertEquals(0, headerParams.size());
+  }
+
+  @Test
+  public void testProcessParamsInHeaderWithPrefix() {
+    Map<String, String> queryParams = new HashMap<String, String>();
+    Map<String, String> headerParams = new HashMap<String, String>();
+
+    ApiKeyAuth auth = new ApiKeyAuth("header", "X-API-TOKEN");
+    auth.setApiKey("my-api-token");
+    auth.setApiKeyPrefix("Token");
+    auth.processParams(queryParams, headerParams);
+
+    // no changes to query parameters
+    assertEquals(0, queryParams.size());
+    assertEquals(1, headerParams.size());
+    assertEquals("Token my-api-token", headerParams.get("X-API-TOKEN"));
+  }
+}
diff --git a/samples/client/petstore/java/src/test/java/io/swagger/client/auth/HttpBasicAuthTest.java b/samples/client/petstore/java/src/test/java/io/swagger/client/auth/HttpBasicAuthTest.java
new file mode 100644
index 00000000000..8c4db19adfa
--- /dev/null
+++ b/samples/client/petstore/java/src/test/java/io/swagger/client/auth/HttpBasicAuthTest.java
@@ -0,0 +1,33 @@
+package io.swagger.client.auth;
+
+import java.util.Map;
+import java.util.HashMap;
+
+import static org.junit.Assert.*;
+import org.junit.*;
+
+public class HttpBasicAuthTest {
+  HttpBasicAuth auth = null;
+
+  @Before
+  public void setup() {
+    auth = new HttpBasicAuth();
+  }
+
+  @Test
+  public void testProcessParams() {
+    Map<String, String> queryParams = new HashMap<String, String>();
+    Map<String, String> headerParams = new HashMap<String, String>();
+
+    auth.setUsername("my-username");
+    auth.setPassword("my-password");
+    auth.processParams(queryParams, headerParams);
+
+    // no changes to query parameters
+    assertEquals(0, queryParams.size());
+    assertEquals(1, headerParams.size());
+    // the string below is base64-encoded result of "my-username:my-password" with the "Basic " prefix
+    final String expected = "Basic bXktdXNlcm5hbWU6bXktcGFzc3dvcmQ=";
+    assertEquals(expected, headerParams.get("Authorization"));
+  }
+}