diff --git a/test/unit/APIConsumer_unit_test.js b/test/unit/APIConsumer_unit_test.js
index 057ca907e..97f2b963d 100755
--- a/test/unit/APIConsumer_unit_test.js
+++ b/test/unit/APIConsumer_unit_test.js
@@ -4,12 +4,13 @@ const chai = require('chai')
 const { expect } = require('chai')
 const BN = require('bn.js')
 const { getChainId } = require('hardhat')
+const {numToBytes32} = require("@chainlink/test-helpers/dist/src/helpers");
 chai.use(require('chai-bn')(BN))
 
 skip.if(!developmentChains.includes(network.name)).
   describe('APIConsumer Unit Tests', async function () {
 
-    let apiConsumer, linkToken
+    let apiConsumer, linkToken, mockOracle
 
     beforeEach(async () => {
       const chainId = await getChainId()
@@ -27,6 +28,13 @@ skip.if(!developmentChains.includes(network.name)).
       if (await autoFundCheck(apiConsumer.address, networkName, linkTokenAddress, additionalMessage)) {
         await hre.run("fund-link", { contract: apiConsumer.address, linkaddress: linkTokenAddress })
       }
+
+      const MockOracle = await deployments.get("MockOracle");
+      mockOracle = await ethers.getContractAt("MockOracle", MockOracle.address);
+    })
+
+    afterEach(async () => {
+      mockOracle.removeAllListeners()
     })
 
     it('Should successfully make an API request', async () => {
@@ -37,4 +45,19 @@ skip.if(!developmentChains.includes(network.name)).
       console.log("requestId: ", requestId)
       expect(requestId).to.not.be.null
     })
+
+    it("Should successfully make an API request and get a result", (done) => {
+      mockOracle.once("OracleRequest",
+        async (_specId, _sender, requestId, _payment, _cbAddress, _callbackFuncId, expiration, _dataVersion, _data) => {
+          console.log("OracleRequest:", requestId, _data);
+          // Mock the fulfillment of the request
+          const callbackValue = 1
+          await mockOracle.fulfillOracleRequest(requestId, numToBytes32(callbackValue));
+          // Now check the result
+          const volume = await apiConsumer.volume()
+          expect(volume).to.equal(ethers.BigNumber.from(callbackValue))
+          done();
+      });
+      apiConsumer.requestVolumeData();
+    });
   })