terraform/state/remote/testing.go

88 lines
1.9 KiB
Go

package remote
import (
"bytes"
"testing"
"github.com/hashicorp/terraform/state"
"github.com/hashicorp/terraform/terraform"
)
// TestClient is a generic function to test any client.
func TestClient(t *testing.T, c Client) {
var buf bytes.Buffer
s := state.TestStateInitial()
if err := terraform.WriteState(s, &buf); 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("bad: %#v", p)
}
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("bad: %#v", p)
}
}
// 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")
}
if err := lockerA.Lock("test client A"); err != nil {
t.Fatal("unable to get initial lock:", err)
}
if err := lockerB.Lock("test client B"); err == nil {
lockerA.Unlock()
t.Fatal("client B obtained lock while held by client A")
} else {
t.Log("lock info error:", err)
}
if err := lockerA.Unlock(); err != nil {
t.Fatal("error unlocking client A", err)
}
if err := lockerB.Lock("test client B"); err != nil {
t.Fatal("unable to obtain lock from client B")
}
if err := lockerB.Unlock(); err != nil {
t.Fatal("error unlocking client B:", err)
}
// unlock should be repeatable
if err := lockerA.Unlock(); err != nil {
t.Fatal("Unlock error from client A when state was not locked:", err)
}
}