terraform/backend/local/testing.go

101 lines
2.7 KiB
Go
Raw Normal View History

package local
import (
"io/ioutil"
"path/filepath"
"testing"
"github.com/hashicorp/terraform/backend"
"github.com/hashicorp/terraform/state"
"github.com/hashicorp/terraform/terraform"
)
// 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 {
tempDir := testTempDir(t)
return &Local{
StatePath: filepath.Join(tempDir, "state.tfstate"),
StateOutPath: filepath.Join(tempDir, "state.tfstate"),
StateBackupPath: filepath.Join(tempDir, "state.tfstate.bak"),
ContextOpts: &terraform.ContextOpts{},
}
}
// 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{}
}
if b.ContextOpts.Providers == nil {
b.ContextOpts.Providers = make(map[string]terraform.ResourceProviderFactory)
}
// Setup our provider
b.ContextOpts.Providers[name] = func() (terraform.ResourceProvider, error) {
return p, nil
}
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{}
}
// 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
}
func testTempDir(t *testing.T) string {
d, err := ioutil.TempDir("", "tf")
if err != nil {
t.Fatalf("err: %s", err)
}
return d
}