feat: Add the FakeKeyManagementServiceClient class for the testing.

PiperOrigin-RevId: 577329411
Change-Id: I826e80d546fe0069c7c10094e621e789ec7992eb

BUILD.bazel

@@ -19,6 +19,7 @@ gen_maven_jar_rules(
         "com.google.crypto.tink.integration.gcpkms",
     ],
     deps = [
+        "//src/main/java/com/google/crypto/tink/integration/gcpkms:fake_key_management_service_client",
         "//src/main/java/com/google/crypto/tink/integration/gcpkms:gcp_kms_aead",
         "//src/main/java/com/google/crypto/tink/integration/gcpkms:gcp_kms_client",
     ],

examples/WORKSPACE

@@ -1,4 +1,4 @@
-workspace(name = "tink_java_awskms_examples")
+workspace(name = "tink_java_gcpkms_examples")
 
 local_repository(
     name = "tink_java_gcpkms",
@@ -23,7 +23,7 @@ maven_install(
     artifacts = TINK_MAVEN_ARTIFACTS +
     TINK_JAVA_GCPKMS_MAVEN_ARTIFACTS + [
       "args4j:args4j:2.33",
-      "com.google.cloud:google-cloud-storage:2.17.2",
+      "com.google.cloud:google-cloud-storage:2.28.0",
     ],
     repositories = [
         "https://maven.google.com",

maven/tink-java-gcpkms.pom.xml

@@ -86,7 +86,8 @@
     <java.version>1.8</java.version>
     <google-api-client.version>2.2.0</google-api-client.version>
     <google-api-services-cloudkms.version>v1-rev20221107-2.0.0</google-api-services-cloudkms.version>
-    <google-auth-library-oauth2-http.version>1.5.3</google-auth-library-oauth2-http.version>
+    <google-cloud-google-cloud-kms.version>2.31.0</google-cloud-google-cloud-kms.version>
+    <google-auth-library-oauth2-http.version>1.20.0</google-auth-library-oauth2-http.version>
     <auto-service-annotations.version>1.1.1</auto-service-annotations.version>
     <jsr305.version>3.0.2</jsr305.version>
     <error_prone_annotations.version>2.22.0</error_prone_annotations.version>
@@ -107,6 +108,11 @@
       <artifactId>google-api-services-cloudkms</artifactId>
       <version>${google-api-services-cloudkms.version}</version>
     </dependency>
+    <dependency>
+      <groupId>com.google.cloud</groupId>
+      <artifactId>google-cloud-kms</artifactId>
+      <version>${google-cloud-google-cloud-kms.version}</version>
+    </dependency>
     <dependency>
       <groupId>com.google.auth</groupId>
       <artifactId>google-auth-library-oauth2-http</artifactId>

src/main/java/com/google/crypto/tink/integration/gcpkms/BUILD.bazel

@@ -57,3 +57,9 @@ java_library(
         "@maven//:com_google_http_client_google_http_client_gson",
     ],
 )
+
+java_library(
+    name = "fake_key_management_service_client",
+    srcs = ["FakeKeyManagementServiceClient.java"],
+    deps = ["@maven//:com_google_cloud_google_cloud_kms"],
+)

src/main/java/com/google/crypto/tink/integration/gcpkms/FakeKeyManagementServiceClient.java

@@ -0,0 +1,39 @@
+// Copyright 2023 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.google.crypto.tink.integration.gcpkms;
+
+import com.google.cloud.kms.v1.KeyManagementServiceClient;
+import com.google.cloud.kms.v1.stub.GrpcKeyManagementServiceStub;
+import com.google.cloud.kms.v1.stub.KeyManagementServiceStubSettings;
+import java.security.GeneralSecurityException;
+
+/** A partial, fake implementation of {@link com.google.cloud.kms.v1.KeyManagementServiceClient}. */
+final class FakeKeyManagementServiceClient {
+  public FakeKeyManagementServiceClient() {}
+
+  public static KeyManagementServiceClient createKeyManagementServiceClient()
+      throws GeneralSecurityException {
+    try {
+      KeyManagementServiceStubSettings.Builder kmsSettingsBuilder =
+          KeyManagementServiceStubSettings.newBuilder();
+      KeyManagementServiceStubSettings kmsSettings = kmsSettingsBuilder.build();
+      GrpcKeyManagementServiceStub grpcKmsStub = GrpcKeyManagementServiceStub.create(kmsSettings);
+      return KeyManagementServiceClient.create(grpcKmsStub);
+    } catch (Exception e) {
+      throw new GeneralSecurityException("creation of FakeKeyManagementServiceClient failed", e);
+    }
+  }
+}

tink_java_gcpkms_deps.bzl

@@ -16,10 +16,11 @@ TINK_JAVA_GCPKMS_MAVEN_TOOLS_ARTIFACTS = [
 TINK_JAVA_GCPKMS_MAVEN_ARTIFACTS = [
     "com.google.api-client:google-api-client:2.2.0",
     "com.google.apis:google-api-services-cloudkms:v1-rev20221107-2.0.0",
-    "com.google.auth:google-auth-library-oauth2-http:1.5.3",
+    "com.google.auth:google-auth-library-oauth2-http:1.20.0",
     "com.google.auto.service:auto-service-annotations:1.1.1",
     "com.google.auto.service:auto-service:1.1.1",
     "com.google.auto:auto-common:1.2.2",
+    "com.google.cloud:google-cloud-kms:2.31.0",
     "com.google.code.findbugs:jsr305:3.0.2",
     "com.google.errorprone:error_prone_annotations:2.22.0",
     "com.google.http-client:google-http-client-gson:1.43.3",