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package resources
import (
"os"
"path/filepath"
"testing"
resourcestypes "github.com/moby/buildkit/executor/resources/types"
"github.com/stretchr/testify/require"
)
func createDummyCgroupFS(t *testing.T, cpuStatContents string) (string, error) {
tmpDir := t.TempDir()
err := os.WriteFile(filepath.Join(tmpDir, "cpu.stat"), []byte(cpuStatContents), 0644)
if err != nil {
return "", err
}
return tmpDir, nil
}
func TestGetCgroupCPUStat(t *testing.T) {
cpuStatContents := `usage_usec 1234567
user_usec 123456
system_usec 123456
nr_periods 123
nr_throttled 12
throttled_usec 123456`
tmpDir, err := createDummyCgroupFS(t, cpuStatContents)
require.NoError(t, err)
cpuStat, err := getCgroupCPUStat(tmpDir)
require.NoError(t, err)
require.NotNil(t, cpuStat.UsageNanos)
require.Equal(t, uint64(1234567000), *cpuStat.UsageNanos)
require.NotNil(t, cpuStat.UserNanos)
require.Equal(t, uint64(123456000), *cpuStat.UserNanos)
require.NotNil(t, cpuStat.SystemNanos)
require.Equal(t, uint64(123456000), *cpuStat.SystemNanos)
require.NotNil(t, cpuStat.NrPeriods)
require.Equal(t, uint32(123), *cpuStat.NrPeriods)
require.NotNil(t, cpuStat.NrThrottled)
require.Equal(t, uint32(12), *cpuStat.NrThrottled)
require.NotNil(t, cpuStat.ThrottledNanos)
require.Equal(t, uint64(123456000), *cpuStat.ThrottledNanos)
}
func TestReadPressureFile(t *testing.T) {
pressureContents := `some avg10=1.23 avg60=4.56 avg300=7.89 total=3031
full avg10=0.12 avg60=0.34 avg300=0.56 total=9876`
tmpFile := filepath.Join(t.TempDir(), "pressure_test")
err := os.WriteFile(tmpFile, []byte(pressureContents), os.ModePerm) //nolint:gosec
require.NoError(t, err)
pressure, err := parsePressureFile(tmpFile)
require.NoError(t, err)
some123 := 1.23
some456 := 4.56
some789 := 7.89
some3031 := uint64(3031)
full12 := 0.12
full34 := 0.34
full56 := 0.56
full9876 := uint64(9876)
expected := &resourcestypes.Pressure{
Some: &resourcestypes.PressureValues{
Avg10: &some123,
Avg60: &some456,
Avg300: &some789,
Total: &some3031,
},
Full: &resourcestypes.PressureValues{
Avg10: &full12,
Avg60: &full34,
Avg300: &full56,
Total: &full9876,
},
}
require.Equal(t, expected, pressure)
}
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