terraform/command/diff_test.go

81 lines
1.6 KiB
Go

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)
}
}