diff --git a/google-cloud-errorreporting/pom.xml b/google-cloud-errorreporting/pom.xml
index 8def1aae..57785c68 100644
--- a/google-cloud-errorreporting/pom.xml
+++ b/google-cloud-errorreporting/pom.xml
@@ -73,6 +73,11 @@
       <artifactId>junit</artifactId>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>com.google.cloud</groupId>
+      <artifactId>google-cloud-core</artifactId>
+      <scope>test</scope>
+    </dependency>
 
     <!-- Need testing utility classes for generated gRPC clients tests -->
     <dependency>
diff --git a/google-cloud-errorreporting/src/test/java/com/google/cloud/errorreporting/v1beta1/it/ITSystemTest.java b/google-cloud-errorreporting/src/test/java/com/google/cloud/errorreporting/v1beta1/it/ITSystemTest.java
new file mode 100644
index 00000000..bc67def9
--- /dev/null
+++ b/google-cloud-errorreporting/src/test/java/com/google/cloud/errorreporting/v1beta1/it/ITSystemTest.java
@@ -0,0 +1,148 @@
+/*
+ * Copyright 2019 Google LLC
+ *
+ * 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 com.google.cloud.errorreporting.v1beta1.it;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import com.google.api.gax.rpc.InvalidArgumentException;
+import com.google.cloud.ServiceOptions;
+import com.google.cloud.errorreporting.v1beta1.ErrorGroupServiceClient;
+import com.google.cloud.errorreporting.v1beta1.ErrorStatsServiceClient;
+import com.google.cloud.errorreporting.v1beta1.ReportErrorsServiceClient;
+import com.google.common.collect.Lists;
+import com.google.devtools.clouderrorreporting.v1beta1.ErrorEvent;
+import com.google.devtools.clouderrorreporting.v1beta1.ErrorGroup;
+import com.google.devtools.clouderrorreporting.v1beta1.ErrorGroupStats;
+import com.google.devtools.clouderrorreporting.v1beta1.GroupName;
+import com.google.devtools.clouderrorreporting.v1beta1.ProjectName;
+import com.google.devtools.clouderrorreporting.v1beta1.QueryTimeRange;
+import com.google.devtools.clouderrorreporting.v1beta1.ReportErrorEventResponse;
+import com.google.devtools.clouderrorreporting.v1beta1.ReportedErrorEvent;
+import java.util.List;
+import org.junit.AfterClass;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+public class ITSystemTest {
+
+  private static ErrorGroupServiceClient errorGroupServiceClient;
+  private static ReportErrorsServiceClient reportErrorsServiceClient;
+  private static ErrorStatsServiceClient errorStatsServiceClient;
+
+  private static final String PROJECT_ID = ServiceOptions.getDefaultProjectId();
+  private static final ProjectName PROJECT_NAME = ProjectName.of(PROJECT_ID);
+  private static final QueryTimeRange TIME_RANGE = QueryTimeRange.newBuilder().build();
+
+  @BeforeClass
+  public static void beforeClass() throws Exception {
+    errorGroupServiceClient = ErrorGroupServiceClient.create();
+    errorStatsServiceClient = ErrorStatsServiceClient.create();
+    reportErrorsServiceClient = ReportErrorsServiceClient.create();
+  }
+
+  @AfterClass
+  public static void afterClass() {
+    errorGroupServiceClient.close();
+    errorStatsServiceClient.close();
+    reportErrorsServiceClient.close();
+  }
+
+  @Test
+  public void listGroupStatsTest() {
+    ErrorStatsServiceClient.ListGroupStatsPagedResponse pagedListResponse =
+        errorStatsServiceClient.listGroupStats(PROJECT_NAME, TIME_RANGE);
+    List<ErrorGroupStats> errorGroupStats = Lists.newArrayList(pagedListResponse.iterateAll());
+    if (errorGroupStats.size() > 0) {
+      ErrorGroup group =
+          errorGroupServiceClient.getGroup(errorGroupStats.get(0).getGroup().getName());
+      assertNotNull(group);
+      assertEquals(errorGroupStats.get(0).getGroup(), group);
+      assertEquals(errorGroupStats.get(0).getGroup().getGroupId(), group.getGroupId());
+      assertEquals(errorGroupStats.get(0).getGroup().getName(), group.getName());
+    }
+  }
+
+  @Test
+  public void listEventsTest() {
+    ErrorStatsServiceClient.ListGroupStatsPagedResponse pagedListResponse =
+        errorStatsServiceClient.listGroupStats(PROJECT_NAME, TIME_RANGE);
+    List<ErrorGroupStats> errorGroupStats = Lists.newArrayList(pagedListResponse.iterateAll());
+    if (errorGroupStats.size() > 0) {
+      Iterable<ErrorEvent> errorEvent =
+          errorStatsServiceClient
+              .listEvents(PROJECT_NAME, errorGroupStats.get(0).getGroup().getGroupId())
+              .iterateAll();
+      assertNotNull(errorEvent);
+      assertTrue(errorEvent.iterator().hasNext());
+      assertNotNull(errorEvent.iterator().next());
+    }
+  }
+
+  @Test
+  public void getGroupTest() {
+    ErrorStatsServiceClient.ListGroupStatsPagedResponse pagedListResponse =
+        errorStatsServiceClient.listGroupStats(PROJECT_NAME, TIME_RANGE);
+    List<ErrorGroupStats> errorGroupStats = Lists.newArrayList(pagedListResponse.iterateAll());
+    if (errorGroupStats.size() > 0) {
+      ErrorGroup group =
+          errorGroupServiceClient.getGroup(errorGroupStats.get(0).getGroup().getName());
+      assertNotNull(group);
+      assertEquals(errorGroupStats.get(0).getGroup(), group);
+      assertEquals(errorGroupStats.get(0).getGroup().getGroupId(), group.getGroupId());
+      assertEquals(errorGroupStats.get(0).getGroup().getName(), group.getName());
+    }
+  }
+
+  @Test(expected = InvalidArgumentException.class)
+  public void getGroupExceptionTest() {
+    GroupName group = GroupName.of(PROJECT_ID, "DUMMY-GROUP");
+    errorGroupServiceClient.getGroup(group);
+  }
+
+  @Test
+  public void reportErrorEventTest() {
+    String message =
+        "{\n"
+            + "  \"context\": {\n"
+            + "    \"httpRequest\": {\n"
+            + "      \"responseStatusCode\": 500,\n"
+            + "      \"method\": \"GET\",\n"
+            + "      \"url\": \"http://example.com/product/"\n"
+            + "    },\n"
+            + "    \"user\": \"2247177\"\n"
+            + "  },\n"
+            + "  \"message\": \"org.springframework.web.client.HttpServerErrorException:  500 Server Error\n"
+            + "  at org.springframework.web.client.DefaultResponseErrorHandler.handleError(DefaultResponseErrorHandler.java: 94)\n"
+            + "  \",\n"
+            + "  \"serviceContext\": {\n"
+            + "    \"service\": \"cart\",\n"
+            + "    \"version\": \"\"\n"
+            + "  }";
+    ReportedErrorEvent event = ReportedErrorEvent.newBuilder().setMessage(message).build();
+    ReportErrorEventResponse errorEventResponse =
+        reportErrorsServiceClient.reportErrorEvent(PROJECT_NAME, event);
+    assertNotNull(errorEventResponse);
+    assertTrue(errorEventResponse.isInitialized());
+  }
+
+  @Test(expected = InvalidArgumentException.class)
+  public void reportErrorEventExceptionTest() {
+    ReportedErrorEvent event = ReportedErrorEvent.newBuilder().build();
+    reportErrorsServiceClient.reportErrorEvent(PROJECT_NAME, event);
+  }
+}
diff --git a/pom.xml b/pom.xml
index 6e882858..0ee8086a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -121,6 +121,11 @@
         <artifactId>proto-google-common-protos</artifactId>
         <version>${google.common-protos.version}</version>
       </dependency>
+      <dependency>
+        <groupId>com.google.cloud</groupId>
+        <artifactId>google-cloud-core</artifactId>
+        <version>${google.core.version}</version>
+      </dependency>
       <dependency>
         <groupId>org.threeten</groupId>
         <artifactId>threetenbp</artifactId>