amqpx v1.0.1

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amqpx / extensions/jest / TestConsumer

Class: TestConsumer<T>

Defined in: src/extensions/jest/test-consumer.ts:34

Test implementation of Consumer using jest mocks.

listen method instantly returns current instance wrapped in Promise. You can assert the parameters with which was this method called to assert listen method was called.

queue and channel properties are new instances of TestQueue and TestChannel respectively. All other methods are jest mocks returning void or the current instance, depending on the method semantic.

Example

import { TestConsumer } from 'amqpx/jest';

const consumer = new TestConsumer();

const channel = consumer.getChannel();

expect(channel).toBeInstanceOf(TestChannel);

const listener = () => { / * empty * / };
await consumer.listen(listener);

expect(consumer.listen).toBeCalledWith(listener);

Extends

• EventEmitter

Type Parameters

Type Parameter
T

Implements

• Consumer<T>

Constructors

Constructor

new TestConsumer<T>(): TestConsumer<T>

Defined in: src/extensions/jest/test-consumer.ts:36

Returns

TestConsumer<T>

Overrides

EventEmitter.constructor

Properties

Property	Type	Description	Defined in
channel	TestChannel	The channel used by this consumer.	src/extensions/jest/test-consumer.ts:49
close	Mock<any, any, any>	Stops consuming new messages and waits for all in-flight message handlers to finish. Param Maximum time in milliseconds to wait for in-flight messages to complete. Defaults to 30000.	src/extensions/jest/test-consumer.ts:41
listen	Mock<any, any, any>	Registers the message handler and starts consuming from the queue. Param Handler invoked for each received message.	src/extensions/jest/test-consumer.ts:43
queue	TestQueue	The queue this consumer reads from.	src/extensions/jest/test-consumer.ts:47
setPrefetch	Mock<any, any, any>	-	src/extensions/jest/test-consumer.ts:45

Methods

deliverMessage()

deliverMessage(message, options?): Promise<void>

Defined in: src/extensions/jest/test-consumer.ts:57

Simulates a message arriving from RabbitMQ by invoking the most recently registered listener. Throws if listen has not been called yet.

Parameters

Parameter	Type	Description
message	T	The parsed message payload to deliver.
options	object & Omit<Partial<ConsumeMessage>, "content">	Optional serialization override and raw amqplib message field overrides.

Returns

Promise<void>