136 lines
2.9 KiB
Go
136 lines
2.9 KiB
Go
package remote
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import (
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"bytes"
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"io/ioutil"
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"os"
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"testing"
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"github.com/hashicorp/terraform/state"
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"github.com/hashicorp/terraform/terraform"
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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 := state.TestStateInitial()
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if err := terraform.WriteState(s, &buf); 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("bad: %#v", p)
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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("bad: %#v", p)
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}
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}
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func TestRemoteClient_noPayload(t *testing.T) {
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s := &State{
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Client: nilClient{},
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}
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if err := s.RefreshState(); err != nil {
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t.Fatal("error refreshing empty remote state")
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}
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}
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// nilClient returns nil for everything
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type nilClient struct{}
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func (nilClient) Get() (*Payload, error) { return nil, nil }
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func (c nilClient) Put([]byte) error { return nil }
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func (c nilClient) Delete() error { return nil }
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// ensure that remote state can be properly initialized
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func TestRemoteClient_stateInit(t *testing.T) {
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localStateFile, err := ioutil.TempFile("", "tf")
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if err != nil {
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t.Fatal(err)
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}
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// we need to remove the temp files so we recognize there's no local or
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// remote state.
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localStateFile.Close()
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os.Remove(localStateFile.Name())
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defer os.Remove(localStateFile.Name())
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remoteStateFile, err := ioutil.TempFile("", "tf")
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if err != nil {
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t.Fatal(err)
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}
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remoteStateFile.Close()
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os.Remove(remoteStateFile.Name())
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defer os.Remove(remoteStateFile.Name())
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// Now we need an empty state to initialize the state files.
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newState := terraform.NewState()
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newState.Remote = &terraform.RemoteState{
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Type: "_local",
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Config: map[string]string{"path": remoteStateFile.Name()},
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}
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remoteClient := &FileClient{
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Path: remoteStateFile.Name(),
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}
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cache := &state.CacheState{
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Cache: &state.LocalState{
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Path: localStateFile.Name(),
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},
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Durable: &State{
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Client: remoteClient,
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},
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}
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// This will write the local state file, and set the state field in the CacheState
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err = cache.WriteState(newState)
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if err != nil {
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t.Fatal(err)
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}
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// This will persist the local state we just wrote to the remote state file
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err = cache.PersistState()
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if err != nil {
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t.Fatal(err)
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}
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// now compare the two state files just to be sure
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localData, err := ioutil.ReadFile(localStateFile.Name())
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if err != nil {
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t.Fatal(err)
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}
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remoteData, err := ioutil.ReadFile(remoteStateFile.Name())
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if err != nil {
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t.Fatal(err)
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}
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if !bytes.Equal(localData, remoteData) {
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t.Log("state files don't match")
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t.Log("Local:\n", string(localData))
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t.Log("Remote:\n", string(remoteData))
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t.Fatal("failed to initialize remote state")
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}
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}
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