core: Fix tests for TestPlanGraphBuilder

Previously this was just stubbing out provider types, but we now need to
include schema for each of the providers and resource types the tests
use in order for the references to be properly detected.

The test fixtures are adjusted slightly here so we can use the
simpleTestSchema as the schema for all of the different blocks in these
tests. The relationships between the resources are still preserved, but
the attributes are renamed to comply with this schema.

terraform/graph_builder_plan_test.go

@@ -1,11 +1,11 @@
 package terraform
 
 import (
-	"fmt"
 	"strings"
 	"testing"
 
 	"github.com/hashicorp/terraform/addrs"
+	"github.com/hashicorp/terraform/config/configschema"
 )
 
 func TestPlanGraphBuilder_impl(t *testing.T) {
@@ -17,12 +17,24 @@ func TestPlanGraphBuilder(t *testing.T) {
 		Config: testModule(t, "graph-builder-plan-basic"),
 		Components: &basicComponentFactory{
 			providers: map[string]ResourceProviderFactory{
-				"aws": func() (ResourceProvider, error) {
-					return nil, fmt.Errorf("not implemented")
+				"aws": ResourceProviderFactoryFixed(&MockResourceProvider{
+					GetSchemaReturn: &ProviderSchema{
+						Provider: simpleTestSchema(),
+						ResourceTypes: map[string]*configschema.Block{
+							"aws_security_group": simpleTestSchema(),
+							"aws_instance":       simpleTestSchema(),
+							"aws_load_balancer":  simpleTestSchema(),
 						},
-				"openstack": func() (ResourceProvider, error) {
-					return nil, fmt.Errorf("not implemented")
 					},
+				}),
+				"openstack": ResourceProviderFactoryFixed(&MockResourceProvider{
+					GetSchemaReturn: &ProviderSchema{
+						Provider: simpleTestSchema(),
+						ResourceTypes: map[string]*configschema.Block{
+							"openstack_floating_ip": simpleTestSchema(),
+						},
+					},
+				}),
 			},
 		},
 		DisableReduce: true,
@@ -47,16 +59,7 @@ func TestPlanGraphBuilder(t *testing.T) {
 func TestPlanGraphBuilder_targetModule(t *testing.T) {
 	b := &PlanGraphBuilder{
 		Config:     testModule(t, "graph-builder-plan-target-module-provider"),
-		Components: &basicComponentFactory{
-			providers: map[string]ResourceProviderFactory{
-				"null": func() (ResourceProvider, error) {
-					return nil, fmt.Errorf("not implemented")
-				},
-				"openstack": func() (ResourceProvider, error) {
-					return nil, fmt.Errorf("not implemented")
-				},
-			},
-		},
+		Components: simpleMockComponentFactory(),
 		Targets: []addrs.Targetable{
 			addrs.RootModuleInstance.Child("child2", addrs.NoKey),
 		},
@@ -69,8 +72,8 @@ func TestPlanGraphBuilder_targetModule(t *testing.T) {
 
 	t.Logf("Graph: %s", g.String())
 
-	testGraphNotContains(t, g, "module.child1.provider.null")
-	testGraphNotContains(t, g, "module.child1.null_resource.foo")
+	testGraphNotContains(t, g, "module.child1.provider.test")
+	testGraphNotContains(t, g, "module.child1.test_object.foo")
 }
 
 const testPlanGraphBuilderStr = `

terraform/test-fixtures/graph-builder-plan-basic/main.tf

@@ -4,7 +4,7 @@ variable "foo" {
 }
 
 provider "aws" {
-    foo = "${openstack_floating_ip.random.value}"
+  test_string = "${openstack_floating_ip.random.test_string}"
 }
 
 resource "openstack_floating_ip" "random" {}
@@ -12,19 +12,20 @@ resource "openstack_floating_ip" "random" {}
 resource "aws_security_group" "firewall" {}
 
 resource "aws_instance" "web" {
-    ami = "${var.foo}"
-    security_groups = [
+  test_string = var.foo
+
+  test_list = [
     "foo",
-        "${aws_security_group.firewall.foo}"
+    aws_security_group.firewall.test_string,
   ]
 }
 
 resource "aws_load_balancer" "weblb" {
-    members = "${aws_instance.web.id_list}"
+  test_list = aws_instance.web.test_list
 }
 
 locals {
-  instance_id = "${aws_instance.web.id}"
+  instance_id = "${aws_instance.web.test_string}"
 }
 
 output "instance_id" {

terraform/test-fixtures/graph-builder-plan-target-module-provider/child1/main.tf

@@ -1,7 +1,7 @@
 variable "key" {}
 
-provider "null" {
-  key = "${var.key}"
+provider "test" {
+  test_string = "${var.key}"
 }
 
-resource "null_resource" "foo" {}
+resource "test_object" "foo" {}

terraform/test-fixtures/graph-builder-plan-target-module-provider/child2/main.tf

@@ -1,7 +1,7 @@
 variable "key" {}
 
-provider "null" {
-  key = "${var.key}"
+provider "test" {
+  test_string = "${var.key}"
 }
 
-resource "null_resource" "foo" {}
+resource "test_object" "foo" {}

terraform/test-fixtures/graph-builder-plan-target-module-provider/main.tf

@@ -1,7 +1,9 @@
 module "child1" {
   source = "./child1"
+  key    = "!"
 }
 
 module "child2" {
   source = "./child2"
+  key    = "!"
 }