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