Function buildMemoryMetrics

cgroup1/memory_test.go:261–289

buildMemoryMetrics creates fake cgroups memory entries in a temporary dir. Returns the fake cgroups root

(t *testing.T, modules []string, metrics []string)

// buildMemoryMetrics creates fake cgroups memory entries in a temporary dir. Returns the fake cgroups root
func buildMemoryMetrics(t *testing.T, modules []string, metrics []string) string {
	tmpRoot := t.TempDir()
	tmpDir := path.Join(tmpRoot, string(Memory))
	if err := os.MkdirAll(tmpDir, defaultDirPerm); err != nil {
		t.Fatal(err)
	}
	if err := os.WriteFile(path.Join(tmpDir, "memory.stat"), []byte(memoryData), defaultFilePerm); err != nil {
		t.Fatal(err)
	}
	if err := os.WriteFile(path.Join(tmpDir, "memory.oom_control"), []byte(memoryOomControlData), defaultFilePerm); err != nil {
		t.Fatal(err)
	}
	cnt := 0
	for _, mod := range modules {
		for _, metric := range metrics {
			var fileName string
			if mod == "" {
				fileName = path.Join(tmpDir, strings.Join([]string{"memory", metric}, "."))
			} else {
				fileName = path.Join(tmpDir, strings.Join([]string{"memory", mod, metric}, "."))
			}
			if err := os.WriteFile(fileName, []byte(fmt.Sprintln(cnt)), defaultFilePerm); err != nil {
				t.Fatal(err)
			}
			cnt++
		}
	}
	return tmpRoot
}

func Test_getOomControlValue(t *testing.T) {
	var (