Add tests for cloud object storate COS on IBM Cloud

tests/dat/cos/testcosread.js

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+var AWS = require('ibm-cos-sdk');
+const endpoint = 's3-api.us-geo.objectstorage.softlayer.net';
+const ibmAuthEndpoint = 'https://iam.ng.bluemix.net/oidc/token';
+var params = {
+  Bucket: 'ibm-functions-devops-testing',
+  Key: 'testdata.txt'
+}
+var cos;
+function main({
+  __bx_creds: {
+    "cloud-object-storage": { apikey },
+    "cloud-object-storage": { resource_instance_id }
+  }
+}) {
+  cos = cos || new AWS.S3({
+    endpoint: endpoint,
+    ibmAuthEndpoint: ibmAuthEndpoint,
+    apiKeyId: apikey,
+    serviceInstanceId: resource_instance_id
+  });
+  return new Promise((resolve, reject) => {
+    cos.getObject(params, (err, data) => {
+      if (err) {
+        console.error("something bad happened", err);
+        reject({ Error: err })
+      } else {
+        resolve({ data: data.Body.toString('utf-8') })
+      }
+    });
+  });
+}

tests/src/test/scala/integration/CredentialsIBMNodeJsCOSTests.scala

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+/*
+ * Copyright 2017 IBM Corporation
+ *
+ * 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 integration
+
+import common._
+import org.junit.runner.RunWith
+import org.scalatest.junit.JUnitRunner
+import java.io.File
+
+import spray.json._
+import org.scalatest.BeforeAndAfterAll
+@RunWith(classOf[JUnitRunner])
+class CredentialsIBMNodeJsCOSTests extends TestHelpers with WskTestHelpers with BeforeAndAfterAll {
+
+  implicit val wskprops: WskProps = WskProps()
+  var defaultKind = Some("nodejs-ibm:8")
+  val wsk = new Wsk
+  val datdir = System.getProperty("user.dir") + "/dat/"
+  val creds = TestUtils.getVCAPcredentials("cloud-object-storage")
+  val apikey = creds.get("apikey")
+  var resource_instance_id = creds.get("resource_instance_id")
+  val __bx_creds = JsObject(
+    "cloud-object-storage" -> JsObject(
+      "apikey" -> JsString(apikey),
+      "resource_instance_id" -> JsString(resource_instance_id)))
+
+  it should "Test connection to Cloud Object Storage COS on IBM Cloud" in withAssetCleaner(wskprops) {
+    (wp, assetHelper) =>
+      val file = Some(new File(datdir, "cos/testcosread.js").toString())
+      assetHelper.withCleaner(wsk.action, "testCOS") { (action, _) =>
+        action.create(
+          "testCOS",
+          file,
+          main = Some("main"),
+          kind = defaultKind,
+          parameters = Map("__bx_creds" -> __bx_creds))
+      }
+      withActivation(wsk.activation, wsk.action.invoke("testCOS")) { activation =>
+        val response = activation.response
+        response.result.get.fields.get("error") shouldBe empty
+        response.result.get.fields.get("data") should be(
+          Some(JsString("This is a test file for IBM-Functions integration testing.")))
+      }
+  }
+}