test: add CUD instance config integration tests

samples/snippets/src/test/java/com/example/spanner/CreateUpdateDeleteInstanceConfigSampleIT.java

@@ -0,0 +1,60 @@
+/*
+ * Copyright 2022 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
+ *
+ *       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.
+ */
+
+package com.example.spanner;
+
+import static org.junit.Assert.assertTrue;
+import org.junit.Test;
+
+public class CreateUpdateDeleteInstanceConfigSampleIT extends SampleTestBase {
+
+  @Test
+  public void testCreateUpdateDeleteInstanceConfig() throws Exception {
+    String customInstanceConfigId = idGenerator.generateInstanceConfigId();
+
+    // Create a random instance config. Display name is set to the instance config id in sample.
+    final String out1 = SampleRunner.runSample(() ->
+        CreateInstanceConfigSample.createInstanceConfig(projectId, instanceConfigIdCmmr, customInstanceConfigId)
+    );
+    assertTrue(
+        "Expected instance config " + customInstanceConfigId + " to be created."
+            + " Output received was " + out1,
+        out1.contains(customInstanceConfigId)
+    );
+
+    // Update display name to a randomly generated instance config id.
+    String newDisplayName = idGenerator.generateInstanceConfigId();
+    final String out2 = SampleRunner.runSample(() ->
+        UpdateInstanceConfigSample.updateInstanceConfig(projectId, customInstanceConfigId, newDisplayName)
+    );
+    assertTrue(
+        "Expected display name to be updated from" + customInstanceConfigId + " to " + newDisplayName
+            + " for instance config " + customInstanceConfigId + "."
+            + " Output received was " + out2,
+        out2.contains(newDisplayName)
+    );
+
+    // Delete the created instance config.
+    final String out3 = SampleRunner.runSample(() ->
+        DeleteInstanceConfigSample.deleteInstanceConfig(projectId, customInstanceConfigId)
+    );
+    assertTrue(
+        "Expected instance config " + customInstanceConfigId + " to be deleted."
+            + " Output received was " + out3,
+        out3.contains(customInstanceConfigId)
+    );
+  }
+}

samples/snippets/src/test/java/com/example/spanner/SampleIdGenerator.java

@@ -28,16 +28,21 @@ public class SampleIdGenerator {
 
   private static final int DATABASE_NAME_MAX_LENGTH = 30;
   private static final int BACKUP_NAME_MAX_LENGTH = 30;
+  private static final int INSTANCE_CONFIG_ID_MAX_LENGTH = 30;
   private final List<String> databaseIds;
   private final List<String> backupIds;
+  private final List<String> instanceConfigIds;
   private final String baseDatabaseId;
   private final String baseBackupId;
+  private final String baseInstanceConfigId;
 
-  public SampleIdGenerator(String baseDatabaseId, String baseBackupId) {
+  public SampleIdGenerator(String baseDatabaseId, String baseBackupId, String baseInstanceConfigId) {
     this.baseDatabaseId = baseDatabaseId;
     this.baseBackupId = baseBackupId;
+    this.baseInstanceConfigId = baseInstanceConfigId;
     this.databaseIds = new ArrayList<>();
     this.backupIds = new ArrayList<>();
+    this.instanceConfigIds = new ArrayList<>();
   }
 
   public String generateDatabaseId() {
@@ -62,11 +67,27 @@ public String generateBackupId() {
     return databaseId;
   }
 
+  public String generateInstanceConfigId() {
+    final String instanceConfigId = (
+        "custom-"
+            + baseInstanceConfigId
+            + "-"
+            + UUID.randomUUID().toString().replaceAll("-", "")
+    ).substring(0, INSTANCE_CONFIG_ID_MAX_LENGTH);
+
+    instanceConfigIds.add(instanceConfigId);
+    return instanceConfigId;
+  }
+
   public List<String> getDatabaseIds() {
     return databaseIds;
   }
 
   public List<String> getBackupIds() {
     return backupIds;
   }
+
+  public List<String> getInstanceConfigIds() {
+    return instanceConfigIds;
+  }
 }

samples/snippets/src/test/java/com/example/spanner/SampleTestBase.java

@@ -20,6 +20,7 @@
 import com.google.cloud.spanner.InstanceAdminClient;
 import com.google.cloud.spanner.Spanner;
 import com.google.cloud.spanner.SpannerOptions;
+import java.awt.SystemTray;
 import org.junit.AfterClass;
 import org.junit.BeforeClass;
 
@@ -33,6 +34,7 @@ public class SampleTestBase {
       "sampledb"
   );
   private static final String BASE_BACKUP_ID = "samplebk";
+  private static final String BASE_INSTANCE_CONFIG_ID = "sampleconfig";
 
   protected static Spanner spanner;
   protected static DatabaseAdminClient databaseAdminClient;
@@ -43,19 +45,22 @@ public class SampleTestBase {
       System.getProperty("spanner.test.instance.mr");
   protected static final String instanceConfigName = System
       .getProperty("spanner.test.instance.config");
+  protected static final String instanceConfigIdCmmr = System
+      .getProperty("spanner.test.instance.config.cmmr");
   protected static SampleIdGenerator idGenerator;
 
   @BeforeClass
   public static void beforeClass() {
     final SpannerOptions options = SpannerOptions
         .newBuilder()
+        .setHost("https://staging-wrenchworks.sandbox.googleapis.com")
         .setAutoThrottleAdministrativeRequests()
         .build();
     projectId = options.getProjectId();
     spanner = options.getService();
     databaseAdminClient = spanner.getDatabaseAdminClient();
     instanceAdminClient = spanner.getInstanceAdminClient();
-    idGenerator = new SampleIdGenerator(BASE_DATABASE_ID, BASE_BACKUP_ID);
+    idGenerator = new SampleIdGenerator(BASE_DATABASE_ID, BASE_BACKUP_ID, BASE_INSTANCE_CONFIG_ID);
   }
 
   @AfterClass
@@ -83,6 +88,16 @@ public static void afterClass() {
         );
       }
     }
+    for (String configId : idGenerator.getInstanceConfigIds()) {
+      try {
+        // If the config is not found, it is ignored (no exception is thrown)
+        instanceAdminClient.deleteInstanceConfig(configId);
+      } catch (Exception e) {
+        System.out.println(
+            "Failed to delete instance config " + configId + " due to " + e.getMessage() + ", skipping..."
+        );
+      }
+    }
     spanner.close();
   }
 }