terraform/helper/diff/resource_builder_test.go

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package diff
import (
"testing"
"github.com/hashicorp/terraform/config"
"github.com/hashicorp/terraform/terraform"
)
func TestResourceBuilder_complex(t *testing.T) {
rb := &ResourceBuilder{
Attrs: map[string]AttrType{
"listener": AttrTypeUpdate,
},
}
state := &terraform.ResourceState{
ID: "foo",
Attributes: map[string]string{
"ignore": "1",
"listener.#": "1",
"listener.0.port": "80",
},
}
c := testConfig(t, map[string]interface{}{
"listener": []interface{}{
map[interface{}]interface{}{
"port": 3000,
},
},
}, nil)
diff, err := rb.Diff(state, c)
if err != nil {
t.Fatalf("err: %s", err)
}
if diff == nil {
t.Fatal("should not be nil")
}
actual := testResourceDiffStr(diff)
expected := testRBComplexDiff
if actual != expected {
t.Fatalf("bad: %s", actual)
}
}
func TestResourceBuilder_new(t *testing.T) {
rb := &ResourceBuilder{
Attrs: map[string]AttrType{
"foo": AttrTypeUpdate,
},
ComputedAttrs: []string{"private_ip"},
}
state := &terraform.ResourceState{}
c := testConfig(t, map[string]interface{}{
"foo": "bar",
}, nil)
diff, err := rb.Diff(state, c)
if err != nil {
t.Fatalf("err: %s", err)
}
if diff == nil {
t.Fatal("should not be nil")
}
actual := testResourceDiffStr(diff)
expected := testRBNewDiff
if actual != expected {
t.Fatalf("bad: %s", actual)
}
}
func TestResourceBuilder_requiresNew(t *testing.T) {
rb := &ResourceBuilder{
ComputedAttrs: []string{"private_ip"},
Attrs: map[string]AttrType{
"ami": AttrTypeCreate,
},
}
state := &terraform.ResourceState{
ID: "1",
Attributes: map[string]string{
"ami": "foo",
"private_ip": "127.0.0.1",
},
}
c := testConfig(t, map[string]interface{}{
"ami": "bar",
}, nil)
diff, err := rb.Diff(state, c)
if err != nil {
t.Fatalf("err: %s", err)
}
if diff == nil {
t.Fatal("should not be nil")
}
actual := testResourceDiffStr(diff)
expected := testRBRequiresNewDiff
if actual != expected {
t.Fatalf("bad: %s", actual)
}
}
func TestResourceBuilder_same(t *testing.T) {
rb := &ResourceBuilder{
ComputedAttrs: []string{"private_ip"},
}
state := &terraform.ResourceState{
ID: "1",
Attributes: map[string]string{
"foo": "bar",
},
}
c := testConfig(t, map[string]interface{}{
"foo": "bar",
}, nil)
diff, err := rb.Diff(state, c)
if err != nil {
t.Fatalf("err: %s", err)
}
if diff != nil {
t.Fatal("should not diff: %s", diff)
}
}
func TestResourceBuilder_unknown(t *testing.T) {
rb := &ResourceBuilder{
Attrs: map[string]AttrType{
"foo": AttrTypeUpdate,
},
}
state := &terraform.ResourceState{}
c := testConfig(t, map[string]interface{}{
"foo": "${var.unknown}",
}, map[string]string{
"var.foo": "bar",
"var.unknown": config.UnknownVariableValue,
})
diff, err := rb.Diff(state, c)
if err != nil {
t.Fatalf("err: %s", err)
}
if diff == nil {
t.Fatal("should not be nil")
}
actual := testResourceDiffStr(diff)
expected := testRBUnknownDiff
if actual != expected {
t.Fatalf("bad: %s", actual)
}
}
func TestResourceBuilder_vars(t *testing.T) {
rb := &ResourceBuilder{
Attrs: map[string]AttrType{
"foo": AttrTypeUpdate,
},
}
state := &terraform.ResourceState{}
c := testConfig(t, map[string]interface{}{
"foo": "${var.foo}",
}, map[string]string{
"var.foo": "bar",
})
diff, err := rb.Diff(state, c)
if err != nil {
t.Fatalf("err: %s", err)
}
if diff == nil {
t.Fatal("should not be nil")
}
actual := testResourceDiffStr(diff)
expected := testRBVarsDiff
if actual != expected {
t.Fatalf("bad: %s", actual)
}
}
const testRBComplexDiff = `UPDATE
IN listener.0.port: "80" => "3000"
`
const testRBNewDiff = `UPDATE
IN foo: "" => "bar"
OUT private_ip: "" => "<computed>"
`
const testRBRequiresNewDiff = `CREATE
IN ami: "foo" => "bar" (forces new resource)
OUT private_ip: "127.0.0.1" => "<computed>"
`
const testRBUnknownDiff = `UPDATE
IN foo: "" => "${var.unknown}"
`
const testRBVarsDiff = `UPDATE
IN foo: "" => "bar"
`