[英]Writing a unit test case in node.js using mocha to mock a azure service bus queue
[英]Writing a unit test case in node.js using mocha to mock a azure service bus queue to recive messages
我写了一个单元测试用例,但它给出了错误。 请找到下面的代码
index.js
const { ServiceBusClient, ReceiveMode } = require("@azure/service-bus");
module.exports = async function (context, myTimer) {
// Define connection string and related Service Bus entity names here
const connectionString = process.env['serviceBusConnectionString'];
const queueName = process.env['serviceBusQueueName'];
const sbClient = ServiceBusClient.createFromConnectionString(connectionString);
const queueClient = sbClient.createQueueClient(queueName);
//const receiver = queueClient.createReceiver(ReceiveMode.receiveAndDelete);
const receiver = queueClient.createReceiver(ReceiveMode.peekLock);
const messages = await receiver.receiveMessages(1);
try {
let payloads = [];
messages.forEach((msg) => {
payloads.push(msg.body);
})
await queueClient.close();
} catch (err) {
context.log('Queue message status settle: abandon');
await messages[0].abandon();
console.log('Error ', err);
} finally {
await sbClient.close();
context.done();
}
};
这是单元测试文件,我收到错误。请告诉我为什么会收到此错误,请在此处输入图片说明
indexTest.js:
beforeEach(() => {
const sbClientStub = {
createQueueClient: sinon.stub().returnsThis(),
createReceiver: sinon.stub().returnsThis(),
receiveMessages:sinon.stub(),
close: sinon.stub(),
};
sinon.stub(ServiceBusClient, 'createFromConnectionString').callsFake(() => sbClientStub);
const ctx = {};
// const actual = await pushToQueue(message, ctx);
// sinon.assert.match(actual, 2);
sinon.assert.calledWithExactly(ServiceBusClient.createFromConnectionString, undefined);
sinon.assert.calledWithExactly(sbClientStub.createQueueClient, undefined);
sinon.assert.calledOnce(sbClientStub.createReceiver, undefined );
//sinon.assert.calledWithExactly(sbClientStub.send.firstCall, { body: 'a' });
//sinon.assert.calledWithExactly(sbClientStub.send.secondCall, { body: 'b' });
sinon.assert.calledTwice(sbClientStub.close);
});
你应该用sinon.stub()
替换每个sinon.spy()
。 存根将阻止调用方法的原始实现,但间谍会这样做。 它们基本上具有相同的 API。
为了调用@azure/service-bus
的原始方法,请确保@azure/service-bus
的环境变量、服务帐户、队列等资源准备就绪。
如果这样做,单元测试就不再是孤立的。 事实上,它们不再是单元测试,而是集成测试,或者 e2e 测试。
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