feat(storage): migrate storage samples and tests

storage/package.json

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+{
+  "name": "@google-cloud/storage-samples",
+  "description": "Samples for the Cloud Storage Client Library for Node.js.",
+  "license": "Apache-2.0",
+  "author": "Google Inc.",
+  "engines": {
+    "node": ">=12"
+  },
+  "repository": "googleapis/nodejs-storage",
+  "private": true,
+  "files": [
+    "*.js"
+  ],
+  "scripts": {
+    "cleanup": "node scripts/cleanup",
+    "test": "mocha system-test/*.js --timeout 800000"
+  },
+  "dependencies": {
+    "@google-cloud/pubsub": "^4.0.0",
+    "@google-cloud/storage": "^7.19.0",
+    "node-fetch": "^2.6.7",
+    "uuid": "^8.0.0",
+    "yargs": "^16.0.0"
+  },
+  "devDependencies": {
+    "chai": "^4.2.0",
+    "mocha": "^8.0.0",
+    "p-limit": "^3.1.0"
+  }
+}

storage/resources/.gitignore

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+downloaded.txt

storage/resources/resourcesSub1/testSub1.txt

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+Sub1
+Hello World!

storage/resources/test.txt

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+Hello World!

storage/resources/test2.txt

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+Hello World 2!

storage/scripts/cleanup

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+#!/usr/bin/env node
+
+// 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
+//
+//      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.
+
+'use strict';
+
+const {Storage} = require('@google-cloud/storage');
+const storage = new Storage();
+const NAME_REG_EXP = /^nodejs-storage-samples-[a-z0-9]{8}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{4}-[a-z0-9]{12}$/;
+
+storage
+  .getBuckets()
+  .then(([buckets]) => {
+    let promise = Promise.resolve();
+
+    buckets
+      .filter((bucket) => NAME_REG_EXP.test(bucket.name))
+      .forEach((bucket) => {
+        promise = promise.then(() => {
+          return bucket.deleteFiles()
+            .then(() => bucket.deleteFiles(), console.error)
+            .then(() => {
+              console.log(`Deleting ${bucket.name}`);
+              return bucket.delete();
+            }, console.error)
+            .catch(console.error);
+        });
+      });
+  })
+  .catch((err) => {
+    console.error('ERROR:', err);
+  });

storage/setClientEndpoint.js

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+// 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.
+
+'use strict';
+
+/**
+ * This application demonstrates set a custom endpoint with
+ * the Google Cloud Storage API.
+ *
+ * For more information, see the README.md under /storage and the documentation
+ * at https://cloud.google.com/storage/docs.
+ */
+
+function main(apiEndpoint = 'https://storage.googleapis.com') {
+  // [START storage_set_client_endpoint]
+  /**
+   * TODO(developer): Uncomment the following lines before running the sample.
+   */
+  // The custom endpoint to which requests should be made
+  // const apiEndpoint = 'https://yourcustomendpoint.com';
+
+  // Imports the Google Cloud client library
+  const {Storage} = require('@google-cloud/storage');
+  try {
+    // Creates a client
+    const storage = new Storage({
+      apiEndpoint: apiEndpoint,
+      useAuthWithCustomEndpoint: true,
+    });
+
+    console.log(`Client initiated with endpoint: ${storage.apiEndpoint}.`);
+  } catch (error) {
+    console.error(
+      'Error executing set client endpoint:',
+      error.message || error
+    );
+  }
+
+  // [END storage_set_client_endpoint]
+}
+
+main(...process.argv.slice(2));

storage/system-test/storage.test.js

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+// 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.
+
+'use strict';
+
+const {assert} = require('chai');
+const {it} = require('mocha');
+const cp = require('child_process');
+
+const execSync = cmd => cp.execSync(cmd, {encoding: 'utf-8'});
+
+it('should intialize storage with a custom api endpoint', async () => {
+  const apiEndpoint = 'https://storage.googleapis.com';
+  const output = execSync(`node setClientEndpoint.js ${apiEndpoint}`);
+  assert.match(
+    output,
+    new RegExp(`Client initiated with endpoint: ${apiEndpoint}.`)
+  );
+});