terraform/plans/planfile/tfplan_test.go

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package planfile
import (
"bytes"
"testing"
"github.com/go-test/deep"
"github.com/zclconf/go-cty/cty"
"github.com/hashicorp/terraform/addrs"
"github.com/hashicorp/terraform/plans"
)
func TestTFPlanRoundTrip(t *testing.T) {
objTy := cty.Object(map[string]cty.Type{
"id": cty.String,
})
plan := &plans.Plan{
VariableValues: map[string]plans.DynamicValue{
"foo": mustNewDynamicValueStr("foo value"),
},
Changes: &plans.Changes{
Outputs: []*plans.OutputChangeSrc{
{
Addr: addrs.OutputValue{Name: "bar"}.Absolute(addrs.RootModuleInstance),
ChangeSrc: plans.ChangeSrc{
Action: plans.Create,
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After: mustDynamicOutputValue("bar value"),
},
Sensitive: false,
},
{
Addr: addrs.OutputValue{Name: "baz"}.Absolute(addrs.RootModuleInstance),
ChangeSrc: plans.ChangeSrc{
Action: plans.NoOp,
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Before: mustDynamicOutputValue("baz value"),
After: mustDynamicOutputValue("baz value"),
},
Sensitive: false,
},
{
Addr: addrs.OutputValue{Name: "secret"}.Absolute(addrs.RootModuleInstance),
ChangeSrc: plans.ChangeSrc{
Action: plans.Update,
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Before: mustDynamicOutputValue("old secret value"),
After: mustDynamicOutputValue("new secret value"),
},
Sensitive: true,
},
},
Resources: []*plans.ResourceInstanceChangeSrc{
{
Addr: addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_thing",
Name: "woot",
}.Instance(addrs.IntKey(0)).Absolute(addrs.RootModuleInstance),
ProviderAddr: addrs.ProviderConfig{
Type: addrs.NewLegacyProvider("test"),
}.Absolute(addrs.RootModuleInstance),
ChangeSrc: plans.ChangeSrc{
Action: plans.DeleteThenCreate,
Before: mustNewDynamicValue(cty.ObjectVal(map[string]cty.Value{
"id": cty.StringVal("foo-bar-baz"),
}), objTy),
After: mustNewDynamicValue(cty.ObjectVal(map[string]cty.Value{
"id": cty.UnknownVal(cty.String),
}), objTy),
},
},
{
Addr: addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_thing",
Name: "woot",
}.Instance(addrs.IntKey(0)).Absolute(addrs.RootModuleInstance),
DeposedKey: "foodface",
ProviderAddr: addrs.ProviderConfig{
Type: addrs.NewLegacyProvider("test"),
}.Absolute(addrs.RootModuleInstance),
ChangeSrc: plans.ChangeSrc{
Action: plans.Delete,
Before: mustNewDynamicValue(cty.ObjectVal(map[string]cty.Value{
"id": cty.StringVal("bar-baz-foo"),
}), objTy),
},
},
},
},
TargetAddrs: []addrs.Targetable{
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_thing",
Name: "woot",
}.Absolute(addrs.RootModuleInstance),
},
ProviderSHA256s: map[string][]byte{
"test": []byte{
0xba, 0x5e, 0x1e, 0x55, 0xb0, 0x1d, 0xfa, 0xce,
0xef, 0xfe, 0xc7, 0xed, 0x1a, 0xbe, 0x11, 0xed,
0x5c, 0xa1, 0xab, 0x1e, 0xda, 0x7a, 0xba, 0x5e,
0x70, 0x7a, 0x11, 0xed, 0xb0, 0x07, 0xab, 0x1e,
},
},
Backend: plans.Backend{
Type: "local",
Config: mustNewDynamicValue(
cty.ObjectVal(map[string]cty.Value{
"foo": cty.StringVal("bar"),
}),
cty.Object(map[string]cty.Type{
"foo": cty.String,
}),
),
Workspace: "default",
},
}
var buf bytes.Buffer
err := writeTfplan(plan, &buf)
if err != nil {
t.Fatal(err)
}
newPlan, err := readTfplan(&buf)
if err != nil {
t.Fatal(err)
}
{
oldDepth := deep.MaxDepth
oldCompare := deep.CompareUnexportedFields
deep.MaxDepth = 20
deep.CompareUnexportedFields = true
defer func() {
deep.MaxDepth = oldDepth
deep.CompareUnexportedFields = oldCompare
}()
}
for _, problem := range deep.Equal(newPlan, plan) {
t.Error(problem)
}
}
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func mustDynamicOutputValue(val string) plans.DynamicValue {
ret, err := plans.NewDynamicValue(cty.StringVal(val), cty.DynamicPseudoType)
if err != nil {
panic(err)
}
return ret
}
func mustNewDynamicValue(val cty.Value, ty cty.Type) plans.DynamicValue {
ret, err := plans.NewDynamicValue(val, ty)
if err != nil {
panic(err)
}
return ret
}
func mustNewDynamicValueStr(val string) plans.DynamicValue {
realVal := cty.StringVal(val)
ret, err := plans.NewDynamicValue(realVal, cty.String)
if err != nil {
panic(err)
}
return ret
}
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// TestTFPlanRoundTripDestroy ensures that encoding and decoding null values for
// destroy doesn't leave us with any nil values.
func TestTFPlanRoundTripDestroy(t *testing.T) {
objTy := cty.Object(map[string]cty.Type{
"id": cty.String,
})
plan := &plans.Plan{
Changes: &plans.Changes{
Outputs: []*plans.OutputChangeSrc{
{
Addr: addrs.OutputValue{Name: "bar"}.Absolute(addrs.RootModuleInstance),
ChangeSrc: plans.ChangeSrc{
Action: plans.Delete,
Before: mustDynamicOutputValue("output"),
After: mustNewDynamicValue(cty.NullVal(cty.String), cty.String),
},
},
},
Resources: []*plans.ResourceInstanceChangeSrc{
{
Addr: addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_thing",
Name: "woot",
}.Instance(addrs.IntKey(0)).Absolute(addrs.RootModuleInstance),
ProviderAddr: addrs.ProviderConfig{
Type: addrs.NewLegacyProvider("test"),
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}.Absolute(addrs.RootModuleInstance),
ChangeSrc: plans.ChangeSrc{
Action: plans.Delete,
Before: mustNewDynamicValue(cty.ObjectVal(map[string]cty.Value{
"id": cty.StringVal("foo-bar-baz"),
}), objTy),
After: mustNewDynamicValue(cty.NullVal(objTy), objTy),
},
},
},
},
TargetAddrs: []addrs.Targetable{
addrs.Resource{
Mode: addrs.ManagedResourceMode,
Type: "test_thing",
Name: "woot",
}.Absolute(addrs.RootModuleInstance),
},
Backend: plans.Backend{
Type: "local",
Config: mustNewDynamicValue(
cty.ObjectVal(map[string]cty.Value{
"foo": cty.StringVal("bar"),
}),
cty.Object(map[string]cty.Type{
"foo": cty.String,
}),
),
Workspace: "default",
},
}
var buf bytes.Buffer
err := writeTfplan(plan, &buf)
if err != nil {
t.Fatal(err)
}
newPlan, err := readTfplan(&buf)
if err != nil {
t.Fatal(err)
}
for _, rics := range newPlan.Changes.Resources {
ric, err := rics.Decode(objTy)
if err != nil {
t.Fatal(err)
}
if ric.After == cty.NilVal {
t.Fatalf("unexpected nil After value: %#v\n", ric)
}
}
for _, ocs := range newPlan.Changes.Outputs {
oc, err := ocs.Decode()
if err != nil {
t.Fatal(err)
}
if oc.After == cty.NilVal {
t.Fatalf("unexpected nil After value: %#v\n", ocs)
}
}
}