package remote import ( "bytes" "testing" "github.com/hashicorp/terraform/state" "github.com/hashicorp/terraform/states/statefile" ) // TestClient is a generic function to test any client. func TestClient(t *testing.T, c Client) { var buf bytes.Buffer s := state.TestStateInitial() sf := statefile.New(s, "stub-lineage", 2) err := statefile.Write(sf, &buf) if err != nil { t.Fatalf("err: %s", err) } data := buf.Bytes() if err := c.Put(data); err != nil { t.Fatalf("put: %s", err) } p, err := c.Get() if err != nil { t.Fatalf("get: %s", err) } if !bytes.Equal(p.Data, data) { t.Fatalf("expected full state %q\n\ngot: %q", string(p.Data), string(data)) } if err := c.Delete(); err != nil { t.Fatalf("delete: %s", err) } p, err = c.Get() if err != nil { t.Fatalf("get: %s", err) } if p != nil { t.Fatalf("expected empty state, got: %q", string(p.Data)) } } // Test the lock implementation for a remote.Client. // This test requires 2 client instances, in oder to have multiple remote // clients since some implementations may tie the client to the lock, or may // have reentrant locks. func TestRemoteLocks(t *testing.T, a, b Client) { lockerA, ok := a.(state.Locker) if !ok { t.Fatal("client A not a state.Locker") } lockerB, ok := b.(state.Locker) if !ok { t.Fatal("client B not a state.Locker") } infoA := state.NewLockInfo() infoA.Operation = "test" infoA.Who = "clientA" infoB := state.NewLockInfo() infoB.Operation = "test" infoB.Who = "clientB" lockIDA, err := lockerA.Lock(infoA) if err != nil { t.Fatal("unable to get initial lock:", err) } _, err = lockerB.Lock(infoB) if err == nil { lockerA.Unlock(lockIDA) t.Fatal("client B obtained lock while held by client A") } if err := lockerA.Unlock(lockIDA); err != nil { t.Fatal("error unlocking client A", err) } lockIDB, err := lockerB.Lock(infoB) if err != nil { t.Fatal("unable to obtain lock from client B") } if lockIDB == lockIDA { t.Fatalf("duplicate lock IDs: %q", lockIDB) } if err = lockerB.Unlock(lockIDB); err != nil { t.Fatal("error unlocking client B:", err) } // TODO: Should we enforce that Unlock requires the correct ID? }