package command import ( "io/ioutil" "os" "reflect" "testing" "github.com/hashicorp/terraform/terraform" "github.com/mitchellh/cli" ) func TestDiff_noState(t *testing.T) { p := testProvider() ui := new(cli.MockUi) c := &DiffCommand{ TFConfig: testTFConfig(p), Ui: ui, } args := []string{ testFixturePath("diff"), } if code := c.Run(args); code != 0 { t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String()) } // Verify that the provider was called with the existing state expectedState := &terraform.ResourceState{ Type: "test_instance", } if !reflect.DeepEqual(p.DiffState, expectedState) { t.Fatalf("bad: %#v", p.DiffState) } } func TestDiff_state(t *testing.T) { // Write out some prior state tf, err := ioutil.TempFile("", "tf") if err != nil { t.Fatalf("err: %s", err) } statePath := tf.Name() defer os.Remove(tf.Name()) originalState := &terraform.State{ Resources: map[string]*terraform.ResourceState{ "test_instance.foo": &terraform.ResourceState{ ID: "bar", Type: "test_instance", }, }, } err = terraform.WriteState(originalState, tf) tf.Close() if err != nil { t.Fatalf("err: %s", err) } p := testProvider() ui := new(cli.MockUi) c := &DiffCommand{ TFConfig: testTFConfig(p), Ui: ui, } args := []string{ "-state", statePath, testFixturePath("diff"), } if code := c.Run(args); code != 0 { t.Fatalf("bad: %d\n\n%s", code, ui.ErrorWriter.String()) } // Verify that the provider was called with the existing state expectedState := originalState.Resources["test_instance.foo"] if !reflect.DeepEqual(p.DiffState, expectedState) { t.Fatalf("bad: %#v", p.DiffState) } }