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unit-test: reconstuct TestMain

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os.Exit will skip all deferred instructions.
So we should reconstruct TestMain to leave all setup-related
code in setup(), and all cleanup-related code in shutdown().

Fixes: #2398

Signed-off-by: Penny Zheng <penny.zheng@arm.com>
This commit is contained in:
Penny Zheng 2020-01-16 17:24:36 +08:00
parent d11696de9a
commit aa62781aa7
1 changed files with 20 additions and 12 deletions
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32
virtcontainers/store/manager_test.go
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@ -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)
@ -111,22 +114,31 @@ 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)
@ -134,8 +146,4 @@ func TestMain(m *testing.M) {
sandboxDirLock = filepath.Join(RunStoragePath(), testSandboxID)
sandboxFileState = filepath.Join(RunStoragePath(), testSandboxID, StateFile)
sandboxFileLock = filepath.Join(RunStoragePath(), testSandboxID, LockFile)
ret := m.Run()
os.Exit(ret)
}