terraform: all tests passing

terraform/graph.go

@@ -111,7 +111,8 @@ func graphAddConfigResources(
 		var state *ResourceState
 		if s != nil {
 			state = s.Resources[r.Id()]
-		} else {
+		}
+		if state == nil {
 			state = &ResourceState{
 				Type: r.Type,
 			}

terraform/terraform.go

@@ -89,14 +89,12 @@ func New(c *Config) (*Terraform, error) {
 }
 
 func (t *Terraform) Apply(p *Plan) (*State, error) {
-	graph, err := t.Graph(p.Config, p.State)
+	g, err := t.Graph(p.Config, p.State)
 	if err != nil {
 		return nil, err
 	}
 
-	result := new(State)
-	err = graph.Walk(t.applyWalkFn(p, result))
-	return result, err
+	return t.apply(g, p)
 }
 
 // Graph returns the dependency graph for the given configuration and
@@ -145,6 +143,14 @@ func (t *Terraform) Refresh(c *config.Config, s *State) (*State, error) {
 	return t.refresh(g)
 }
 
+func (t *Terraform) apply(
+	g *depgraph.Graph,
+	p *Plan) (*State, error) {
+	s := new(State)
+	err := g.Walk(t.applyWalkFn(s, p.Vars))
+	return s, err
+}
+
 func (t *Terraform) plan(
 	g *depgraph.Graph,
 	c *config.Config,
@@ -187,8 +193,8 @@ func (t *Terraform) refreshWalkFn(result *State) depgraph.WalkFunc {
 }
 
 func (t *Terraform) applyWalkFn(
-	p *Plan,
-	result *State) depgraph.WalkFunc {
+	result *State,
+	vs map[string]string) depgraph.WalkFunc {
 	var l sync.Mutex
 
 	// Initialize the result
@@ -246,7 +252,7 @@ func (t *Terraform) applyWalkFn(
 		return vars, err
 	}
 
-	return t.genericWalkFn(p.Vars, cb)
+	return t.genericWalkFn(vs, cb)
 }
 
 func (t *Terraform) planWalkFn(

terraform/terraform_test.go

@@ -13,12 +13,11 @@ import (
 // This is the directory where our test fixtures are.
 const fixtureDir = "./test-fixtures"
 
-/*
 func TestTerraformApply(t *testing.T) {
-	tf := testTerraform(t, "apply-good")
+	c := testConfig(t, "apply-good")
+	tf := testTerraform2(t, nil)
 
-	s := &State{}
-	p, err := tf.Plan(s)
+	p, err := tf.Plan(c, nil, nil)
 	if err != nil {
 		t.Fatalf("err: %s", err)
 	}
@@ -42,17 +41,15 @@ func TestTerraformApply(t *testing.T) {
 func TestTerraformApply_compute(t *testing.T) {
 	// This tests that computed variables are properly re-diffed
 	// to get the value prior to application (Apply).
-	tf := testTerraform(t, "apply-compute")
+	c := testConfig(t, "apply-compute")
+	tf := testTerraform2(t, nil)
 
-	s := &State{}
-	p, err := tf.Plan(s)
+	p, err := tf.Plan(c, nil, nil)
 	if err != nil {
 		t.Fatalf("err: %s", err)
 	}
 
-	// Set meta to change behavior so that computed variables are filled
-	testProviderMock(testProvider(tf, "aws_instance.foo")).Meta =
-		"compute"
+	p.Vars["value"] = "1"
 
 	state, err := tf.Apply(p)
 	if err != nil {
@@ -67,10 +64,10 @@ func TestTerraformApply_compute(t *testing.T) {
 }
 
 func TestTerraformApply_unknownAttribute(t *testing.T) {
-	tf := testTerraform(t, "apply-unknown")
+	c := testConfig(t, "apply-unknown")
+	tf := testTerraform2(t, nil)
 
-	s := &State{}
-	p, err := tf.Plan(s)
+	p, err := tf.Plan(c, nil, nil)
 	if err != nil {
 		t.Fatalf("err: %s", err)
 	}
@@ -88,11 +85,10 @@ func TestTerraformApply_unknownAttribute(t *testing.T) {
 }
 
 func TestTerraformApply_vars(t *testing.T) {
-	tf := testTerraform(t, "apply-vars")
-	//tf.variables = map[string]string{"foo": "baz"}
+	c := testConfig(t, "apply-vars")
+	tf := testTerraform2(t, nil)
 
-	s := &State{}
-	p, err := tf.Plan(s)
+	p, err := tf.Plan(c, nil, map[string]string{"foo": "baz"})
 	if err != nil {
 		t.Fatalf("err: %s", err)
 	}
@@ -111,7 +107,6 @@ func TestTerraformApply_vars(t *testing.T) {
 		t.Fatalf("bad: \n%s", actual)
 	}
 }
-*/
 
 func TestTerraformPlan(t *testing.T) {
 	c := testConfig(t, "plan-good")
@@ -190,7 +185,7 @@ func TestTerraformRefresh(t *testing.T) {
 	if !rpAWS.RefreshCalled {
 		t.Fatal("refresh should be called")
 	}
-	if rpAWS.RefreshState != nil {
+	if rpAWS.RefreshState.ID != "" {
 		t.Fatalf("bad: %#v", rpAWS.RefreshState)
 	}
 	if !reflect.DeepEqual(s.Resources["aws_instance.web"], rpAWS.RefreshReturn) {
@@ -292,6 +287,11 @@ func testProviderFunc(n string, rs []string) ResourceProviderFactory {
 					return nil, nil
 				}
 
+				// This key is used for other purposes
+				if k == "compute_value" {
+					continue
+				}
+
 				if k == "compute" {
 					attrDiff := &ResourceAttrDiff{
 						Old:         "",
@@ -299,11 +299,11 @@ func testProviderFunc(n string, rs []string) ResourceProviderFactory {
 						NewComputed: true,
 					}
 
-					// If the value of Meta turns into "compute", then we
-					// fill the computed values.
-					if mv, ok := p.Meta.(string); ok && mv == "compute" {
-						attrDiff.NewComputed = false
-						attrDiff.New = fmt.Sprintf("computed_%s", v.(string))
+					if cv, ok := c.Config["compute_value"]; ok {
+						if cv.(string) == "1" {
+							attrDiff.NewComputed = false
+							attrDiff.New = fmt.Sprintf("computed_%s", v.(string))
+						}
 					}
 
 					diff.Attributes[v.(string)] = attrDiff

terraform/test-fixtures/apply-compute/main.tf

@@ -1,6 +1,7 @@
 resource "aws_instance" "foo" {
     num = "2"
     compute = "id"
+    compute_value = "${var.value}"
 }
 
 resource "aws_instance" "bar" {