added buy asset test

integration/ocean/BuyAsset.test.ts

@@ -0,0 +1,112 @@
+import { assert } from 'chai'
+
+import { config } from "../config"
+
+import { Ocean, MetaData, DDO, DID, Account, ServiceAgreement } from '../../src' // @oceanprotocol/squid
+
+describe("Buy Asset", () => {
+    let ocean: Ocean
+
+    let publisher: Account
+    let consumer: Account
+
+    let metadata: Partial<MetaData>
+
+    let ddo: DDO
+    let did: DID
+    let serviceAgreementSignatureResult: {serviceAgreementId: string, serviceAgreementSignature: string}
+    let serviceAgreement: ServiceAgreement
+
+    before(async () => {
+        ocean = await Ocean.getInstance(config)
+
+        // Accounts
+        publisher = (await ocean.getAccounts())[0]
+        publisher.setPassword(process.env.ACCOUNT_PASSWORD)
+        consumer = (await ocean.getAccounts())[1]
+
+        // Data
+        metadata = {
+            base: {
+                name: "Office Humidity",
+                type: "dataset",
+                description: "Weather information of UK including temperature and humidity",
+                size: "3.1gb",
+                dateCreated: "2012-02-01T10:55:11+00:00",
+                author: "Met Office",
+                license: "CC-BY",
+                copyrightHolder: "Met Office",
+                encoding: "UTF-8",
+                compression: "zip",
+                contentType: "text/csv",
+                // tslint:disable-next-line
+                workExample: "stationId,latitude,longitude,datetime,temperature,humidity423432fsd,51.509865,-0.118092,2011-01-01T10:55:11+00:00,7.2,68",
+                files: [
+                    {
+                        url: "https://testocnfiles.blob.core.windows.net/testfiles/testzkp.zip",
+                        checksum: "085340abffh21495345af97c6b0e761",
+                        contentLength: "12324",
+                    },
+                    {
+                        url: "https://testocnfiles.blob.core.windows.net/testfiles/testzkp2.zip",
+                    },
+                ],
+                links: [
+                    {sample1: "http://data.ceda.ac.uk/badc/ukcp09/data/gridded-land-obs/gridded-land-obs-daily/"},
+                    {sample2: "http://data.ceda.ac.uk/badc/ukcp09/data/gridded-land-obs/gridded-land-obs-averages-25km/"},
+                    {fieldsDescription: "http://data.ceda.ac.uk/badc/ukcp09/"},
+                ],
+                inLanguage: "en",
+                tags: "weather, uk, 2011, temperature, humidity",
+                price: 10,
+            },
+        }
+    })
+
+    it("should regiester a asset", async () => {
+        ddo = await ocean.registerAsset(metadata as any, publisher)
+        did = DID.parse(ddo.id)
+
+        assert.isDefined(ddo, "Register has not returned a DDO")
+        assert.match(ddo.id, /^did:op:[a-f0-9]{64}$/, "DDO id is not valid")
+        assert.isAtLeast(ddo.authentication.length, 1, "Default authentication not added")
+        assert.isDefined(ddo.findServiceByType("Access"), "DDO Access service doesn't exist")
+    })
+
+    it("should be able to request tokens for consumer", async () => {
+        const initialBalance = (await consumer.getBalance()).ocn;
+        await consumer.requestTokens(metadata.base.price)
+
+        assert.equal((await consumer.getBalance()).ocn, initialBalance + metadata.base.price, "OCN Tokens not delivered")
+    })
+
+    it("should sign the service agreement", async () => {
+        const accessService = ddo.findServiceByType("Access")
+
+        serviceAgreementSignatureResult = await ocean.signServiceAgreement(ddo.id, accessService.serviceDefinitionId, consumer)
+
+        const {serviceAgreementId, serviceAgreementSignature} = serviceAgreementSignatureResult
+        assert.match(serviceAgreementId, /^[a-f0-9]{64}$/, "Service agreement ID seems not valid")
+        assert.match(serviceAgreementSignature, /^0x[a-f0-9]{130}$/, "Service agreement signature seems not valid")
+    })
+
+    it("should execute the service agreement", async () => {
+        const accessService = ddo.findServiceByType("Access")
+
+        serviceAgreement = await ocean.executeServiceAgreement(
+            ddo.id,
+            accessService.serviceDefinitionId,
+            serviceAgreementSignatureResult.serviceAgreementId,
+            serviceAgreementSignatureResult.serviceAgreementSignature,
+            consumer,
+            publisher,
+        )
+
+        assert.match(serviceAgreement.getId(), /^0x[a-f0-9]{64}$/, "Service agreement ID seems not valid")
+    })
+
+    it("should pay asset trough the service agreement", async () => {
+        const paid = await serviceAgreement.payAsset(did.getId(), metadata.base.price, consumer)
+        assert.isTrue(paid, "The asset has not been paid correctly")
+    })
+})

src/keeper/ContractHandler.ts

@@ -41,8 +41,6 @@ export default class ContractHandler {
         const contract = new web3.eth.Contract(artifact.abi, artifact.address)
         if (ConfigProvider.getConfig().verbose) {
             Logger.log("Getting instance of", what, "from", where, "at address", artifact.address)
-        } else {
-            Logger.log("Loaded", what, "from", where)
         }
         ContractHandler.contracts.set(what, contract)
         return ContractHandler.contracts.get(what)

src/ocean/Account.ts

@@ -10,8 +10,6 @@ import OceanBase from "./OceanBase"
  * Account information.
  */
 export default class Account extends OceanBase {
-    private balance: Balance
-
     private password?: string
 
     /**
@@ -59,15 +57,10 @@ export default class Account extends OceanBase {
      * @return {Promise<Balance>}
      */
     public async getBalance(): Promise<Balance> {
-
+        return {
-        if (!this.balance) {
+            eth: await this.getEtherBalance(),
-            this.balance = {
+            ocn: await this.getOceanBalance(),
-                eth: await this.getEtherBalance(),
-                ocn: await this.getOceanBalance(),
-            } as Balance
         }
-
-        return this.balance
     }
 
     /**

src/ocean/OceanAssets.ts

@@ -205,7 +205,7 @@ export default class OceanAssets {
 
             event.listenOnce(async (data) => {
 
-                const sa: ServiceAgreement = new ServiceAgreement(data.returnValues.serviceAgreementId)
+                const sa: ServiceAgreement = new ServiceAgreement(data.returnValues.agreementId)
                 await sa.payAsset(
                     d.getId(),
                     metadataService.metadata.base.price,

src/squid.ts

@@ -1,29 +1,36 @@
+import Access from "./ocean/ServiceAgreements/Templates/Access"
 import Account from "./ocean/Account"
+import Config from "./models/Config"
 import DID from "./ocean/DID"
+import FitchainCompute from "./ocean/ServiceAgreements/Templates/FitchainCompute"
 import IdGenerator from "./ocean/IdGenerator"
+import Logger from "./utils/Logger"
 import Ocean from "./ocean/Ocean"
+import SecretStoreProvider from "./secretstore/SecretStoreProvider"
 import ServiceAgreement from "./ocean/ServiceAgreements/ServiceAgreement"
 import ServiceAgreementTemplate from "./ocean/ServiceAgreements/ServiceAgreementTemplate"
-import Access from "./ocean/ServiceAgreements/Templates/Access"
-import FitchainCompute from "./ocean/ServiceAgreements/Templates/FitchainCompute"
-import SecretStoreProvider from "./secretstore/SecretStoreProvider"
-import Logger from "./utils/Logger"
 import WebServiceConnectorProvider from "./utils/WebServiceConnectorProvider"
 
 import EventListener from "./keeper/EventListener"
 
+// Exports
+export * from "./ddo/DDO"
+export * from "./ddo/MetaData"
+
 const Templates = {Access, FitchainCompute}
 
 export {
     Ocean,
-    ServiceAgreement,
+
-    ServiceAgreementTemplate,
-    Logger,
-    Templates,
     Account,
-    IdGenerator,
+    Config,
     DID,
     EventListener,
-    WebServiceConnectorProvider,
+    IdGenerator,
+    Logger,
     SecretStoreProvider,
+    ServiceAgreement,
+    ServiceAgreementTemplate,
+    Templates,
+    WebServiceConnectorProvider,
 }