How do I mock external services in tests?

Mocking external services in tests is essential for isolating your application code and ensuring tests run reliably without dependencies on external systems. With mocking, you can simulate the response of these services without making actual calls, allowing for faster and more stable tests.

mocking, external services, unit testing, integration testing, test automation

This guide explains how to mock external services in your tests, ensuring you can effectively isolate your code and achieve reliable test results without the need for live API calls.

<?php use PHPUnit\Framework\TestCase; class ExternalServiceTest extends TestCase { public function testGetData() { $mock = $this->createMock(ExternalService::class); $mock->method('fetchData') ->willReturn('Mocked Data'); $result = $mock->fetchData(); $this->assertEquals('Mocked Data', $result); } } ?>

mocking external services unit testing integration testing test automation

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