'FailNow' in a non-test goroutine

Reports calls to testing.T.FailNow and similar methods located in goroutines in test files.

Methods like FailNow call runtime.Goexit and stop the calling goroutine, not the test. Therefore, they must only be called from the goroutine that runs the test or benchmark.

For more information about FailNow, refer to func (*T) FailNow at go.dev.

Example:

func TestFoo(t *testing.T) {
  go func() {
    t.Fatal("oops") //exits goroutine, not TestFoo
  }()
}

After the Replace with 'Error' and 'return' quick-fix is applied:

func TestFoo(t *testing.T) {
  go func() {
    t.Error("oops")
    return
  }()
}

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

GoVetFailNowInNotTestGoroutine

Via Settings dialog

Path to the inspection settings via IntelliJ Platform IDE Settings dialog, when you need to adjust inspection settings directly from your IDE.

Settings or Preferences | Editor | Inspections | Go | Probable bugs

Inspection Details
By default bundled with:	GoLand 2024.3, Qodana for Go 2024.3,
Can be installed with plugin:	Go, 243.23131

Last modified: 03 December 2024