terraform/helper/schema/resource_data_test.go

package schema

import (
	"reflect"
	"testing"

	"github.com/hashicorp/terraform/terraform"
)

func TestResourceDataGet(t *testing.T) {
	cases := []struct {
		Schema map[string]*Schema
		State  *terraform.ResourceState
		Diff   *terraform.ResourceDiff
		Key    string
		Value  interface{}
	}{
		{
			Schema: map[string]*Schema{
				"availability_zone": &Schema{
					Type:     TypeString,
					Optional: true,
					Computed: true,
					ForceNew: true,
				},
			},

			State: nil,

			Diff: &terraform.ResourceDiff{
				Attributes: map[string]*terraform.ResourceAttrDiff{
					"availability_zone": &terraform.ResourceAttrDiff{
						Old:         "",
						New:         "foo",
						RequiresNew: true,
					},
				},
			},

			Key: "availability_zone",

			Value: "foo",
		},

		{
			Schema: map[string]*Schema{
				"availability_zone": &Schema{
					Type:     TypeString,
					Optional: true,
					Computed: true,
					ForceNew: true,
				},
			},

			State: &terraform.ResourceState{
				Attributes: map[string]string{
					"availability_zone": "bar",
				},
			},

			Diff: nil,

			Key: "availability_zone",

			Value: "bar",
		},

		{
			Schema: map[string]*Schema{
				"port": &Schema{
					Type:     TypeInt,
					Optional: true,
					Computed: true,
					ForceNew: true,
				},
			},

			State: &terraform.ResourceState{
				Attributes: map[string]string{
					"port": "80",
				},
			},

			Diff: nil,

			Key: "port",

			Value: 80,
		},

		{
			Schema: map[string]*Schema{
				"ports": &Schema{
					Type:     TypeList,
					Required: true,
					Elem:     &Schema{Type: TypeInt},
				},
			},

			State: &terraform.ResourceState{
				Attributes: map[string]string{
					"ports.#": "3",
					"ports.0": "1",
					"ports.1": "2",
					"ports.2": "5",
				},
			},

			Key: "ports.1",

			Value: 2,
		},

		{
			Schema: map[string]*Schema{
				"ports": &Schema{
					Type:     TypeList,
					Required: true,
					Elem:     &Schema{Type: TypeInt},
				},
			},

			State: &terraform.ResourceState{
				Attributes: map[string]string{
					"ports.#": "3",
					"ports.0": "1",
					"ports.1": "2",
					"ports.2": "5",
				},
			},

			Key: "ports.#",

			Value: 3,
		},

		{
			Schema: map[string]*Schema{
				"ports": &Schema{
					Type:     TypeList,
					Required: true,
					Elem:     &Schema{Type: TypeInt},
				},
			},

			State: nil,

			Key: "ports.#",

			Value: 0,
		},

		{
			Schema: map[string]*Schema{
				"ports": &Schema{
					Type:     TypeList,
					Required: true,
					Elem:     &Schema{Type: TypeInt},
				},
			},

			State: &terraform.ResourceState{
				Attributes: map[string]string{
					"ports.#": "3",
					"ports.0": "1",
					"ports.1": "2",
					"ports.2": "5",
				},
			},

			Key: "ports",

			Value: []interface{}{1, 2, 5},
		},
	}

	for i, tc := range cases {
		d, err := schemaMap(tc.Schema).Data(tc.State, tc.Diff)
		if err != nil {
			t.Fatalf("err: %s", err)
		}

		v := d.Get(tc.Key)
		if !reflect.DeepEqual(v, tc.Value) {
			t.Fatalf("Bad: %d\n\n%#v", i, v)
		}
	}
}