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Bootstrap the topologyinfo/cpus suite Signed-off-by: Francesco Romani <[email protected]>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| package cpus | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "io/ioutil" | ||
| "os" | ||
| "path/filepath" | ||
|
|
||
| "testing" | ||
|
|
||
| "github.com/fromanirh/cpuset" | ||
| "github.com/fromanirh/numalign/pkg/fakesysfs" | ||
| "github.com/google/go-cmp/cmp" | ||
| ) | ||
|
|
||
| func TestCPUsSingleNuma(t *testing.T) { | ||
| base, err := ioutil.TempDir("/tmp", "fakesysfs") | ||
| if err != nil { | ||
| t.Errorf("error creating temp base dir: %v", err) | ||
| } | ||
| fs, err := fakesysfs.NewFakeSysfs(base) | ||
| if err != nil { | ||
| t.Errorf("error creating fakesysfs: %v", err) | ||
| } | ||
| t.Logf("sysfs at %q", fs.Base()) | ||
|
|
||
| allCpus := []int{0, 1, 2, 3, 4, 5, 6, 7} | ||
| cpuList := cpuset.Unparse(allCpus) + "\n" | ||
|
|
||
| sysDevs := fs.AddTree("sys", "devices") | ||
| devSys := sysDevs.Add("system", nil) | ||
| devNode := devSys.Add("node", nil) | ||
| devNode.Add("node0", map[string]string{ | ||
| "cpulist": cpuList, | ||
| }) | ||
| devCpu := devSys.Add("cpu", map[string]string{ | ||
| "present": cpuList, | ||
| "online": cpuList, | ||
| }) | ||
| for _, cpuID := range allCpus { | ||
| devCpu.Add(fmt.Sprintf("cpu%d", cpuID), nil).Add("topology", map[string]string{ | ||
| "thread_siblings_list": cpuList, | ||
| "core_siblings_list": cpuList, | ||
| "physical_package_id": "0\n", | ||
| }) | ||
| } | ||
|
|
||
| err = fs.Setup() | ||
| if err != nil { | ||
| t.Errorf("error setting up fakesysfs: %v", err) | ||
| } | ||
|
|
||
| cpus, err := NewCPUs(filepath.Join(fs.Base(), "sys")) | ||
| if err != nil { | ||
| t.Errorf("error in NewCPU: %v", err) | ||
| } | ||
| if cpus.NUMANodes != 1 || len(cpus.NUMANodeCPUs) != 1 { | ||
| t.Errorf("NUMA Nodes miscount: expected %d detected %d/%d", 1, cpus.NUMANodes, len(cpus.NUMANodeCPUs)) | ||
| } | ||
|
|
||
| testingCpus := CPUIdList(allCpus) | ||
| if !cmp.Equal(cpus.Present, testingCpus) { | ||
| t.Errorf("not all cpus present %v vs %v", cpus.Present, testingCpus) | ||
| } | ||
| if !cmp.Equal(cpus.Online, testingCpus) { | ||
| t.Errorf("not all cpus online: %v vs %v", cpus.Online, testingCpus) | ||
| } | ||
| if !cmp.Equal(cpus.NUMANodeCPUs[0], testingCpus) { | ||
| t.Errorf("not all cpus on NUMA#0: %v vs %v", cpus.NUMANodeCPUs[0], testingCpus) | ||
| } | ||
|
|
||
| if _, ok := os.LookupEnv("TOPOLOGYINFO_TEST_KEEP_TREE"); ok { | ||
| t.Logf("found environment variable, keeping fake tree") | ||
| } else { | ||
| err = fs.Teardown() | ||
| if err != nil { | ||
| t.Errorf("error tearing down fakesysfs: %v", err) | ||
| } | ||
| } | ||
| } |
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