github.com/koko1123/flow-go-1@v0.29.6/utils/io/write_test.go (about)

     1  package io
     2  
     3  import (
     4  	"errors"
     5  	"fmt"
     6  	"syscall"
     7  	"testing"
     8  
     9  	"github.com/stretchr/testify/require"
    10  )
    11  
    12  func TestTerminateOnFullDisk(t *testing.T) {
    13  	// happy path
    14  	t.Run("return nil on no error", func(t *testing.T) {
    15  		result := TerminateOnFullDisk(nil)
    16  		require.NoError(t, result)
    17  	})
    18  	t.Run("benign non disk related error should return the error", func(t *testing.T) {
    19  		benignError := errors.New("benign error")
    20  		result := TerminateOnFullDisk(benignError)
    21  		require.ErrorIs(t, result, benignError)
    22  	})
    23  	// sad path
    24  	t.Run("panic on full disk", func(t *testing.T) {
    25  		// imitate badgerDB error wrapping
    26  		badgerDiskFullError := fmt.Errorf("this is intended to mimic an internal Badger error wrapping an out-of-disk system error: %w", syscall.ENOSPC)
    27  		defer func() {
    28  			if rec := recover(); rec == nil {
    29  				require.Fail(t, "code should panic")
    30  			}
    31  		}()
    32  		err := TerminateOnFullDisk(badgerDiskFullError)
    33  		require.NoError(t, err)
    34  	})
    35  }