How Can I Run Only One Specific Test in a Go Test Suite?

Isolating Individual Test Execution

In Go package testing suites, executing only a specific test can be convenient for troubleshooting. To achieve this, you can utilize the go test -run flag.

Solution:

Use the following syntax to re-run a particular test:

go test -run=TestSpecific

Here, TestSpecific represents the name of the test function you want to isolate. The -run flag allows you to specify a regular expression that matches the test names you wish to execute.

Example:

Consider a test suite with the following test functions:

import "testing"

func TestA(t *testing.T) {}
func TestB(t *testing.T) {}
func TestC(t *testing.T) {}

To run only TestB, you would use the command:

go test -run="TestB"

This approach can significantly reduce debugging time by isolating the execution of a single test.

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