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Adds kvs lock/unlock tests.

This commit is contained in:
James Phillips 2015-10-08 11:07:17 -07:00
parent 72f15ceac0
commit 75f9cd5cc3
2 changed files with 217 additions and 3 deletions
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6
consul/state/state_store.go
View File

@ -1350,7 +1350,7 @@ func (s *StateStore) KVSLock(idx uint64, entry *structs.DirEntry) (bool, error)
// Verify that a session is present.
if entry.Session == "" {
return false, fmt.Errorf("Missing session")
return false, fmt.Errorf("missing session")
}
// Verify that the session exists.
@ -1359,7 +1359,7 @@ func (s *StateStore) KVSLock(idx uint64, entry *structs.DirEntry) (bool, error)
return false, fmt.Errorf("failed session lookup: %s", err)
}
if sess == nil {
return false, fmt.Errorf("Invalid session %#v", entry.Session)
return false, fmt.Errorf("invalid session %#v", entry.Session)
}
// Retrieve the existing entry.
@ -1401,7 +1401,7 @@ func (s *StateStore) KVSUnlock(idx uint64, entry *structs.DirEntry) (bool, error
// Verify that a session is present.
if entry.Session == "" {
return false, fmt.Errorf("Missing session")
return false, fmt.Errorf("missing session")
}
// Retrieve the existing entry.

214
consul/state/state_store_test.go
View File

@ -6,6 +6,7 @@ import (
"reflect"
"strings"
"testing"
"time"
"github.com/hashicorp/consul/consul/structs"
)
@ -1906,6 +1907,219 @@ func TestStateStore_KVSDeleteTree(t *testing.T) {
}
}
func TestStateStore_KVSLockDelay(t *testing.T) {
s := testStateStore(t)
// KVSLockDelay is exercised in the lock/unlock and session invalidation
// cases below, so we just do a basic check on a nonexistent key here.
expires := s.KVSLockDelay("/not/there")
if expires.After(time.Now()) {
t.Fatalf("bad: %v", expires)
}
}
func TestStateStore_KVSLock(t *testing.T) {
s := testStateStore(t)
// Lock with no session should fail.
ok, err := s.KVSLock(0, &structs.DirEntry{Key: "foo"})
if ok || err == nil || !strings.Contains(err.Error(), "missing session") {
t.Fatalf("didn't detect missing session: %v %s", ok, err)
}
// Now try with a bogus session.
ok, err = s.KVSLock(1, &structs.DirEntry{Key: "foo", Session: "nope"})
if ok || err == nil || !strings.Contains(err.Error(), "invalid session") {
t.Fatalf("didn't detect invalid session: %v %s", ok, err)
}
// Make a real session.
testRegisterNode(t, s, 2, "node1")
if err := s.SessionCreate(3, &structs.Session{ID: "session1", Node: "node1"}); err != nil {
t.Fatalf("err: %s", err)
}
// Lock and make the key at the same time.
ok, err = s.KVSLock(4, &structs.DirEntry{Key: "foo", Session: "session1"})
if !ok || err != nil {
t.Fatalf("didn't get the lock: %v %s", ok, err)
}
// Make sure the indexes got set properly.
result, err := s.KVSGet("foo")
if err != nil {
t.Fatalf("err: %s", err)
}
if result.LockIndex != 1 || result.CreateIndex != 4 || result.ModifyIndex != 4 {
t.Fatalf("bad index: %d, %d, %d", result.LockIndex, result.CreateIndex, result.ModifyIndex)
}
// Re-locking should not return an error, but will report that it didn't
// get the lock.
ok, err = s.KVSLock(5, &structs.DirEntry{Key: "foo", Session: "session1"})
if ok || err != nil {
t.Fatalf("didn't handle locking an already-locked key: %v %s", ok, err)
}
// Make sure the indexes didn't update.
result, err = s.KVSGet("foo")
if err != nil {
t.Fatalf("err: %s", err)
}
if result.LockIndex != 1 || result.CreateIndex != 4 || result.ModifyIndex != 4 {
t.Fatalf("bad index: %d, %d, %d", result.LockIndex, result.CreateIndex, result.ModifyIndex)
}
// Unlock and the re-lock.
ok, err = s.KVSUnlock(6, &structs.DirEntry{Key: "foo", Session: "session1"})
if !ok || err != nil {
t.Fatalf("didn't handle unlocking a locked key: %v %s", ok, err)
}
ok, err = s.KVSLock(7, &structs.DirEntry{Key: "foo", Session: "session1"})
if !ok || err != nil {
t.Fatalf("didn't get the lock: %v %s", ok, err)
}
// Make sure the indexes got set properly.
result, err = s.KVSGet("foo")
if err != nil {
t.Fatalf("err: %s", err)
}
if result.LockIndex != 2 || result.CreateIndex != 4 || result.ModifyIndex != 7 {
t.Fatalf("bad index: %d, %d, %d", result.LockIndex, result.CreateIndex, result.ModifyIndex)
}
// Lock an existing key.
testSetKey(t, s, 8, "bar", "bar")
ok, err = s.KVSLock(9, &structs.DirEntry{Key: "bar", Session: "session1"})
if !ok || err != nil {
t.Fatalf("didn't get the lock: %v %s", ok, err)
}
// Make sure the indexes got set properly.
result, err = s.KVSGet("bar")
if err != nil {
t.Fatalf("err: %s", err)
}
if result.LockIndex != 1 || result.CreateIndex != 8 || result.ModifyIndex != 9 {
t.Fatalf("bad index: %d, %d, %d", result.LockIndex, result.CreateIndex, result.ModifyIndex)
}
// Attempting a re-lock with a different session should also fail.
if err := s.SessionCreate(10, &structs.Session{ID: "session2", Node: "node1"}); err != nil {
t.Fatalf("err: %s", err)
}
// Re-locking should not return an error, but will report that it didn't
// get the lock.
ok, err = s.KVSLock(11, &structs.DirEntry{Key: "bar", Session: "session2"})
if ok || err != nil {
t.Fatalf("didn't handle locking an already-locked key: %v %s", ok, err)
}
// Make sure the indexes didn't update.
result, err = s.KVSGet("bar")
if err != nil {
t.Fatalf("err: %s", err)
}
if result.LockIndex != 1 || result.CreateIndex != 8 || result.ModifyIndex != 9 {
t.Fatalf("bad index: %d, %d, %d", result.LockIndex, result.CreateIndex, result.ModifyIndex)
}
}
func TestStateStore_KVSUnlock(t *testing.T) {
s := testStateStore(t)
// Unlock with no session should fail.
ok, err := s.KVSUnlock(0, &structs.DirEntry{Key: "foo"})
if ok || err == nil || !strings.Contains(err.Error(), "missing session") {
t.Fatalf("didn't detect missing session: %v %s", ok, err)
}
// Make a real session.
testRegisterNode(t, s, 1, "node1")
if err := s.SessionCreate(2, &structs.Session{ID: "session1", Node: "node1"}); err != nil {
t.Fatalf("err: %s", err)
}
// Unlock with a real session but no key should not return an error, but
// will report it didn't unlock anything.
ok, err = s.KVSUnlock(3, &structs.DirEntry{Key: "foo", Session: "session1"})
if ok || err != nil {
t.Fatalf("didn't handle unlocking a missing key: %v %s", ok, err)
}
// Make a key and unlock it, without it being locked.
testSetKey(t, s, 4, "foo", "foo")
ok, err = s.KVSUnlock(5, &structs.DirEntry{Key: "foo", Session: "session1"})
if ok || err != nil {
t.Fatalf("didn't handle unlocking a non-locked key: %v %s", ok, err)
}
// Make sure the indexes didn't update.
result, err := s.KVSGet("foo")
if err != nil {
t.Fatalf("err: %s", err)
}
if result.LockIndex != 0 || result.CreateIndex != 4 || result.ModifyIndex != 4 {
t.Fatalf("bad index: %d, %d, %d", result.LockIndex, result.CreateIndex, result.ModifyIndex)
}
// Lock it with the first session.
ok, err = s.KVSLock(6, &structs.DirEntry{Key: "foo", Session: "session1"})
if !ok || err != nil {
t.Fatalf("didn't get the lock: %v %s", ok, err)
}
// Attempt an unlock with another session.
if err := s.SessionCreate(7, &structs.Session{ID: "session2", Node: "node1"}); err != nil {
t.Fatalf("err: %s", err)
}
ok, err = s.KVSUnlock(8, &structs.DirEntry{Key: "foo", Session: "session2"})
if ok || err != nil {
t.Fatalf("didn't handle unlocking with the wrong session: %v %s", ok, err)
}
// Make sure the indexes didn't update.
result, err = s.KVSGet("foo")
if err != nil {
t.Fatalf("err: %s", err)
}
if result.LockIndex != 1 || result.CreateIndex != 4 || result.ModifyIndex != 6 {
t.Fatalf("bad index: %d, %d, %d", result.LockIndex, result.CreateIndex, result.ModifyIndex)
}
// Now do the unlock with the correct session.
ok, err = s.KVSUnlock(9, &structs.DirEntry{Key: "foo", Session: "session1"})
if !ok || err != nil {
t.Fatalf("didn't handle unlocking with the correct session: %v %s", ok, err)
}
// Make sure the indexes got set properly.
result, err = s.KVSGet("foo")
if err != nil {
t.Fatalf("err: %s", err)
}
if result.LockIndex != 1 || result.CreateIndex != 4 || result.ModifyIndex != 9 {
t.Fatalf("bad index: %d, %d, %d", result.LockIndex, result.CreateIndex, result.ModifyIndex)
}
// Unlocking again should fail and not change anything.
ok, err = s.KVSUnlock(10, &structs.DirEntry{Key: "foo", Session: "session1"})
if ok || err != nil {
t.Fatalf("didn't handle unlocking with the previous session: %v %s", ok, err)
}
// Make sure the indexes didn't update.
result, err = s.KVSGet("foo")
if err != nil {
t.Fatalf("err: %s", err)
}
if result.LockIndex != 1 || result.CreateIndex != 4 || result.ModifyIndex != 9 {
t.Fatalf("bad index: %d, %d, %d", result.LockIndex, result.CreateIndex, result.ModifyIndex)
}
}
func TestStateStore_SessionCreate_GetSession(t *testing.T) {
s := testStateStore(t)