package profiling import ( "io/ioutil" "os" "path/filepath" "testing" "time" "github.com/stretchr/testify/require" ) func TestProfilingCPU(t *testing.T) { dir, err := ioutil.TempDir("", "profiling") require.NoError(t, err) err = StartCPUProfile(dir) require.NoError(t, err) // Block for a bit to collect some metrics. time.Sleep(time.Second) err = StopCPUProfile() require.NoError(t, err) // Verify that the file has some content. file, err := os.Open(filepath.Join(dir, CPUFilename)) require.NoError(t, err) defer file.Close() t.Logf("CPU profile saved in %s for %s", filepath.Join(dir, CPUFilename), os.Args[0]) info, err := file.Stat() require.NoError(t, err) require.True(t, info.Size() > 0, "a file with CPU profile is empty") } func TestProfilingMem(t *testing.T) { dir, err := ioutil.TempDir("", "profiling") require.NoError(t, err) err = WriteHeapFile(dir) require.NoError(t, err) // Verify that the file has some content. file, err := os.Open(filepath.Join(dir, MemFilename)) require.NoError(t, err) defer file.Close() t.Logf("Memory profile saved in %s for %s", filepath.Join(dir, MemFilename), os.Args[0]) info, err := file.Stat() require.NoError(t, err) require.True(t, info.Size() > 0, "a file with memory profile is empty") }