ci(spanner): Create a new Sample Slow tests

.kokoro/build.sh

@@ -206,12 +206,17 @@ slowtests)
     verify
   RETURN_CODE=$?
   ;;
-samples)
+samples|samples-slow-tests)
     SAMPLES_DIR=samples
+    PROFILES=''
     # only run ITs in snapshot/ on presubmit PRs. run ITs in all 3 samples/ subdirectories otherwise.
     if [[ ! -z ${KOKORO_GITHUB_PULL_REQUEST_NUMBER} ]]
     then
       SAMPLES_DIR=samples/snapshot
+    elif [[ ${JOB_TYPE} = 'samples-slow-tests' ]]
+    then
+      SAMPLES_DIR=samples/snippets
+      PROFILES='-Pslow-tests,!integration-tests'
     fi
 
     if [[ -f ${SAMPLES_DIR}/pom.xml ]]
@@ -227,6 +232,7 @@ samples)
           -DtrimStackTrace=false \
           -Dclirr.skip=true \
           -Denforcer.skip=true \
+          ${PROFILES} \
           -fae \
           verify
         RETURN_CODE=$?

.kokoro/nightly/java11-samples-slow-tests.cfg

@@ -0,0 +1,39 @@
+# Format: //devtools/kokoro/config/proto/build.proto
+
+# Configure the docker image for kokoro-trampoline.
+env_vars: {
+  key: "TRAMPOLINE_IMAGE"
+  value: "gcr.io/cloud-devrel-kokoro-resources/java11"
+}
+
+env_vars: {
+  key: "JOB_TYPE"
+  value: "samples-slow-tests"
+}
+
+# TODO: remove this after we've migrated all tests and scripts
+env_vars: {
+  key: "GCLOUD_PROJECT"
+  value: "gcloud-devel"
+}
+
+env_vars: {
+  key: "GOOGLE_CLOUD_PROJECT"
+  value: "gcloud-devel"
+}
+
+env_vars: {
+  key: "GOOGLE_APPLICATION_CREDENTIALS"
+  value: "secret_manager/java-it-service-account"
+}
+
+env_vars: {
+  key: "SECRET_MANAGER_KEYS"
+  value: "java-it-service-account"
+}
+
+env_vars: {
+  key: "ENABLE_BUILD_COP"
+  value: "true"
+}
+

samples/snippets/pom.xml

@@ -115,6 +115,69 @@
       <scope>test</scope>
     </dependency>
   </dependencies>
+  <profiles>
+    <profile>
+      <id>integration-tests</id>
+      <activation>
+        <activeByDefault>true</activeByDefault>
+      </activation>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-failsafe-plugin</artifactId>
+            <version>3.5.2</version>
+            <configuration>
+              <forkCount>10</forkCount>
+              <reuseForks>false</reuseForks>
+              <systemPropertyVariables>
+                <spanner.test.instance>java-sample-integration-tests</spanner.test.instance>
+                <spanner.test.instance.mr>java-client-mr-integration-tests</spanner.test.instance.mr>
+                <spanner.test.instance.config>nam11</spanner.test.instance.config>
+                <spanner.test.key.location>us-east1</spanner.test.key.location>
+                <spanner.test.key.ring>cmek-test-key-ring</spanner.test.key.ring>
+                <spanner.test.key.name>cmek-test-key</spanner.test.key.name>
+                <spanner.sample.database>mysample</spanner.sample.database>
+                <spanner.quickstart.database>quick-db</spanner.quickstart.database>
+              </systemPropertyVariables>
+              <excludes>
+                <exclude>**/SpannerSampleIT.java</exclude>
+              </excludes>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+    <profile>
+      <id>slow-tests</id>
+      <build>
+        <plugins>
+          <plugin>
+            <groupId>org.apache.maven.plugins</groupId>
+            <artifactId>maven-failsafe-plugin</artifactId>
+            <version>3.5.2</version>
+            <configuration>
+              <forkCount>10</forkCount>
+              <reuseForks>false</reuseForks>
+              <systemPropertyVariables>
+                <spanner.test.instance>java-sample-integration-tests</spanner.test.instance>
+                <spanner.test.instance.mr>java-client-mr-integration-tests</spanner.test.instance.mr>
+                <spanner.test.instance.config>nam11</spanner.test.instance.config>
+                <spanner.test.key.location>us-east1</spanner.test.key.location>
+                <spanner.test.key.ring>cmek-test-key-ring</spanner.test.key.ring>
+                <spanner.test.key.name>cmek-test-key</spanner.test.key.name>
+                <spanner.sample.database>mysample</spanner.sample.database>
+                <spanner.quickstart.database>quick-db</spanner.quickstart.database>
+              </systemPropertyVariables>
+              <includes>
+                <include>**/SpannerSampleIT.java</include>
+              </includes>
+            </configuration>
+          </plugin>
+        </plugins>
+      </build>
+    </profile>
+  </profiles>
   <build>
     <plugins>
       <plugin>
@@ -172,28 +235,6 @@
           </archive>
         </configuration>
       </plugin>
-      <plugin>
-        <groupId>org.apache.maven.plugins</groupId>
-        <artifactId>maven-failsafe-plugin</artifactId>
-        <version>3.5.2</version>
-        <configuration>
-          <forkCount>10</forkCount>
-          <reuseForks>false</reuseForks>
-          <systemPropertyVariables>
-            <spanner.test.instance>java-sample-integration-tests</spanner.test.instance>
-            <spanner.test.instance.mr>java-client-mr-integration-tests</spanner.test.instance.mr>
-            <spanner.test.instance.config>nam11</spanner.test.instance.config>
-            <spanner.test.key.location>us-east1</spanner.test.key.location>
-            <spanner.test.key.ring>cmek-test-key-ring</spanner.test.key.ring>
-            <spanner.test.key.name>cmek-test-key</spanner.test.key.name>
-            <spanner.sample.database>mysample</spanner.sample.database>
-            <spanner.quickstart.database>quick-db</spanner.quickstart.database>
-          </systemPropertyVariables>
-          <excludes>
-            <exclude>**/SpannerSampleIT.java</exclude>
-          </excludes>
-        </configuration>
-      </plugin>
       <plugin>
         <groupId>org.apache.maven.plugins</groupId>
         <artifactId>maven-checkstyle-plugin</artifactId>

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

@@ -19,6 +19,7 @@
 import static com.google.common.truth.Truth.assertThat;
 import static org.junit.Assert.assertTrue;
 
+import com.google.api.gax.rpc.FailedPreconditionException;
 import com.google.cloud.Timestamp;
 import com.google.cloud.spanner.DatabaseId;
 import com.google.cloud.spanner.ErrorCode;
@@ -643,8 +644,13 @@ private static void deleteAllBackups(String instanceId) throws InterruptedExcept
           attempts++;
           databaseAdminClient.deleteBackup(backup.getName());
           break;
-        } catch (SpannerException e) {
-          if (e.getErrorCode() == ErrorCode.FAILED_PRECONDITION
+        } catch (SpannerException | FailedPreconditionException e) {
+          ErrorCode errorCode = ErrorCode.FAILED_PRECONDITION;
+
+          if (e instanceof SpannerException) {
+            errorCode = ((SpannerException) e).getErrorCode();
+          }
+          if (errorCode == ErrorCode.FAILED_PRECONDITION
               && e.getMessage()
                   .contains(
                       "Please try deleting the backup once the restore or post-restore optimize "