opentofu/internal/states/remote/testing.go
Martin Atkins f40800b3a4 Move states/ to internal/states/
This is part of a general effort to move all of Terraform's non-library
package surface under internal in order to reinforce that these are for
internal use within Terraform only.

If you were previously importing packages under this prefix into an
external codebase, you could pin to an earlier release tag as an interim
solution until you've make a plan to achieve the same functionality some
other way.
2021-05-17 14:09:07 -07:00

100 lines
2.2 KiB
Go

package remote
import (
"bytes"
"testing"
"github.com/hashicorp/terraform/internal/states/statefile"
"github.com/hashicorp/terraform/internal/states/statemgr"
)
// TestClient is a generic function to test any client.
func TestClient(t *testing.T, c Client) {
var buf bytes.Buffer
s := statemgr.TestFullInitialState()
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.(statemgr.Locker)
if !ok {
t.Fatal("client A not a statemgr.Locker")
}
lockerB, ok := b.(statemgr.Locker)
if !ok {
t.Fatal("client B not a statemgr.Locker")
}
infoA := statemgr.NewLockInfo()
infoA.Operation = "test"
infoA.Who = "clientA"
infoB := statemgr.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?
}