package local import ( "io/ioutil" "os" "path/filepath" "testing" "github.com/hashicorp/terraform/backend" "github.com/hashicorp/terraform/state" "github.com/hashicorp/terraform/terraform" "github.com/hashicorp/terraform/tfdiags" ) // TestLocal returns a configured Local struct with temporary paths and // in-memory ContextOpts. // // No operations will be called on the returned value, so you can still set // public fields without any locks. func TestLocal(t *testing.T) (*Local, func()) { t.Helper() tempDir := testTempDir(t) var local *Local local = &Local{ StatePath: filepath.Join(tempDir, "state.tfstate"), StateOutPath: filepath.Join(tempDir, "state.tfstate"), StateBackupPath: filepath.Join(tempDir, "state.tfstate.bak"), StateWorkspaceDir: filepath.Join(tempDir, "state.tfstate.d"), ContextOpts: &terraform.ContextOpts{}, ShowDiagnostics: func(vals ...interface{}) { var diags tfdiags.Diagnostics diags = diags.Append(vals...) for _, diag := range diags { t.Log(diag.Description().Summary) if local.CLI != nil { local.CLI.Error(diag.Description().Summary) } } }, } cleanup := func() { if err := os.RemoveAll(tempDir); err != nil { t.Fatal("error clecanup up test:", err) } } return local, cleanup } // TestLocalProvider modifies the ContextOpts of the *Local parameter to // have a provider with the given name. func TestLocalProvider(t *testing.T, b *Local, name string) *terraform.MockResourceProvider { // Build a mock resource provider for in-memory operations p := new(terraform.MockResourceProvider) p.DiffReturn = &terraform.InstanceDiff{} p.RefreshFn = func( info *terraform.InstanceInfo, s *terraform.InstanceState) (*terraform.InstanceState, error) { return s, nil } p.ResourcesReturn = []terraform.ResourceType{ terraform.ResourceType{ Name: "test_instance", }, } // Initialize the opts if b.ContextOpts == nil { b.ContextOpts = &terraform.ContextOpts{} } // Setup our provider b.ContextOpts.ProviderResolver = terraform.ResourceProviderResolverFixed( map[string]terraform.ResourceProviderFactory{ name: terraform.ResourceProviderFactoryFixed(p), }, ) return p } // TestNewLocalSingle is a factory for creating a TestLocalSingleState. // This function matches the signature required for backend/init. func TestNewLocalSingle() backend.Backend { return &TestLocalSingleState{Local: &Local{}} } // TestLocalSingleState is a backend implementation that wraps Local // and modifies it to only support single states (returns // ErrNamedStatesNotSupported for multi-state operations). // // This isn't an actual use case, this is exported just to provide a // easy way to test that behavior. type TestLocalSingleState struct { *Local } func (b *TestLocalSingleState) State(name string) (state.State, error) { if name != backend.DefaultStateName { return nil, backend.ErrNamedStatesNotSupported } return b.Local.State(name) } func (b *TestLocalSingleState) States() ([]string, error) { return nil, backend.ErrNamedStatesNotSupported } func (b *TestLocalSingleState) DeleteState(string) error { return backend.ErrNamedStatesNotSupported } // TestNewLocalNoDefault is a factory for creating a TestLocalNoDefaultState. // This function matches the signature required for backend/init. func TestNewLocalNoDefault() backend.Backend { return &TestLocalNoDefaultState{Local: &Local{}} } // TestLocalNoDefaultState is a backend implementation that wraps // Local and modifies it to support named states, but not the // default state. It returns ErrDefaultStateNotSupported when the // DefaultStateName is used. type TestLocalNoDefaultState struct { *Local } func (b *TestLocalNoDefaultState) State(name string) (state.State, error) { if name == backend.DefaultStateName { return nil, backend.ErrDefaultStateNotSupported } return b.Local.State(name) } func (b *TestLocalNoDefaultState) States() ([]string, error) { states, err := b.Local.States() if err != nil { return nil, err } filtered := states[:0] for _, name := range states { if name != backend.DefaultStateName { filtered = append(filtered, name) } } return filtered, nil } func (b *TestLocalNoDefaultState) DeleteState(name string) error { if name == backend.DefaultStateName { return backend.ErrDefaultStateNotSupported } return b.Local.DeleteState(name) } func testTempDir(t *testing.T) string { d, err := ioutil.TempDir("", "tf") if err != nil { t.Fatalf("err: %s", err) } return d }