How Can I Implement Global Test Setup and Teardown in Go?

Enhanced Test Setup in Go Using the Testing Package

In Go testing, the concept of global test setup, similar to the [SetUp] attribute in NUnit, has been introduced since Go 1.4.

Solution: Implementing TestMain

The key to achieving global test setup lies in implementing a func TestMain(m *testing.M) function within your test file. This function replaces the standard test execution process and allows you to:

• Perform test setup and teardown operations
• Control the testing environment
• Execute code in a separate process
• Check for resource leaks

Example of Global Setup and Teardown

The following code snippet demonstrates how to implement global setup and teardown using func TestMain:

func TestMain(m *testing.M) {
    setup()
    code := m.Run()
    shutdown()
    os.Exit(code)
}

Additional Examples

You can find more examples of func TestMain usage in the following resources:

• [Go Testing Main Explained](https://blog.logrocket.com/go-testing-main-explained/)
• [Using TestMain in Go for Test Setup and Teardown](https://betterprogramming.pub/using-testmain-in-go-for-test-setup-and-teardown-bd1660d18b92)

By utilizing func TestMain, you can streamline your test setup processes and enhance the efficiency of your Go tests.

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