Merge pull request kata-containers#2399 from Pennyzct/cleanup_dir_temp

unit-test: cleaning up stale files under /tmp

virtcontainers/acrn_arch_base_test.go

@@ -9,6 +9,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"net"
+	"os"
 	"path/filepath"
 	"testing"
 
@@ -128,6 +129,7 @@ func TestAcrnArchBaseAppendImage(t *testing.T) {
 
 	image, err := ioutil.TempFile("", "img")
 	assert.NoError(err)
+	defer os.Remove(image.Name())
 	err = image.Close()
 	assert.NoError(err)
 

virtcontainers/kata_agent_test.go

@@ -636,6 +636,7 @@ func TestAgentConfigure(t *testing.T) {
 
 	dir, err := ioutil.TempDir("", "kata-agent-test")
 	assert.Nil(err)
+	defer os.RemoveAll(dir)
 
 	k := &kataAgent{}
 	h := &mockHypervisor{}
@@ -758,6 +759,7 @@ func TestAgentCreateContainer(t *testing.T) {
 
 	dir, err := ioutil.TempDir("", "kata-agent-test")
 	assert.Nil(err)
+	defer os.RemoveAll(dir)
 
 	err = k.configure(&mockHypervisor{}, sandbox.id, dir, true, KataAgentConfig{})
 	assert.Nil(err)
@@ -904,8 +906,10 @@ func TestKataCleanupSandbox(t *testing.T) {
 	s := Sandbox{
 		id: "testFoo",
 	}
-	dir := path.Join(kataHostSharedDir(), s.id)
-	err := os.MkdirAll(dir, 0777)
+
+	dir := kataHostSharedDir()
+	defer os.RemoveAll(dir)
+	err := os.MkdirAll(path.Join(dir, s.id), 0777)
 	assert.Nil(err)
 
 	k := &kataAgent{ctx: context.Background()}

virtcontainers/qemu_arch_base_test.go

@@ -9,6 +9,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	"net"
+	"os"
 	"path/filepath"
 	"testing"
 
@@ -287,6 +288,7 @@ func TestQemuArchBaseAppendImage(t *testing.T) {
 
 	image, err := ioutil.TempFile("", "img")
 	assert.NoError(err)
+	defer os.Remove(image.Name())
 	err = image.Close()
 	assert.NoError(err)
 

virtcontainers/store/manager_test.go

@@ -27,6 +27,9 @@ var storeRoot, storeRootDir = func() (string, string) {
 	dir, _ := ioutil.TempDir("", "")
 	return "file://" + dir, dir
 }()
+var testDir = ""
+var ConfigStoragePathSaved = func() string { return "" }
+var RunStoragePathSaved = func() string { return "" }
 
 func TestNewStore(t *testing.T) {
 	s, err := New(context.Background(), storeRoot)
@@ -111,31 +114,36 @@ func TestManagerFindStore(t *testing.T) {
 // TestMain is the common main function used by ALL the test functions
 // for the store.
 func TestMain(m *testing.M) {
-	testDir, err := ioutil.TempDir("", "store-tmp-")
+	setup()
+	rt := m.Run()
+	shutdown()
+	os.Exit(rt)
+}
+
+func shutdown() {
+	os.RemoveAll(testDir)
+	ConfigStoragePath = ConfigStoragePathSaved
+	RunStoragePath = RunStoragePathSaved
+}
+
+func setup() {
+	var err error
+	testDir, err = ioutil.TempDir("", "store-tmp-")
 	if err != nil {
 		panic(err)
 	}
 
-	ConfigStoragePathSaved := ConfigStoragePath
-	RunStoragePathSaved := RunStoragePath
+	ConfigStoragePathSaved = ConfigStoragePath
+	RunStoragePathSaved = RunStoragePath
 	// allow the tests to run without affecting the host system.
 	ConfigStoragePath = func() string { return filepath.Join(testDir, StoragePathSuffix, "config") }
 	RunStoragePath = func() string { return filepath.Join(testDir, StoragePathSuffix, "run") }
 
-	defer func() {
-		ConfigStoragePath = ConfigStoragePathSaved
-		RunStoragePath = RunStoragePathSaved
-	}()
-
 	// set now that ConfigStoragePath has been overridden.
 	sandboxDirConfig = filepath.Join(ConfigStoragePath(), testSandboxID)
 	sandboxFileConfig = filepath.Join(ConfigStoragePath(), testSandboxID, ConfigurationFile)
 	sandboxDirState = filepath.Join(RunStoragePath(), testSandboxID)
 	sandboxDirLock = filepath.Join(RunStoragePath(), testSandboxID)
 	sandboxFileState = filepath.Join(RunStoragePath(), testSandboxID, StateFile)
 	sandboxFileLock = filepath.Join(RunStoragePath(), testSandboxID, LockFile)
-
-	ret := m.Run()
-
-	os.Exit(ret)
 }

virtcontainers/vm_test.go

@@ -8,6 +8,7 @@ package virtcontainers
 import (
 	"context"
 	"io/ioutil"
+	"os"
 	"testing"
 
 	"github.com/kata-containers/runtime/virtcontainers/utils"
@@ -17,7 +18,10 @@ import (
 func TestNewVM(t *testing.T) {
 	assert := assert.New(t)
 
-	testDir, _ := ioutil.TempDir("", "vmfactory-tmp-")
+	testDir, err := ioutil.TempDir("", "vmfactory-tmp-")
+	assert.Nil(err)
+	defer os.RemoveAll(testDir)
+
 	config := VMConfig{
 		HypervisorType: MockHypervisor,
 		AgentType:      NoopAgentType,
@@ -31,7 +35,7 @@ func TestNewVM(t *testing.T) {
 	ctx := context.Background()
 
 	var vm *VM
-	_, err := NewVM(ctx, config)
+	_, err = NewVM(ctx, config)
 	assert.Error(err)
 
 	config.HypervisorConfig = hyperConfig
@@ -82,7 +86,10 @@ func TestVMConfigValid(t *testing.T) {
 	err := config.Valid()
 	assert.Error(err)
 
-	testDir, _ := ioutil.TempDir("", "vmfactory-tmp-")
+	testDir, err := ioutil.TempDir("", "vmfactory-tmp-")
+	assert.Nil(err)
+	defer os.RemoveAll(testDir)
+
 	config.HypervisorConfig = HypervisorConfig{
 		KernelPath: testDir,
 		InitrdPath: testDir,