opentofu/terraform/plan_test.go
Mitchell Hashimoto 068b2b2dec
terraform: add Meta field to diffs
This adds a Meta field (similar to InstanceState.Meta) to InstanceDiff.

This allows providers to store arbitrary k/v data as part of a diff and
have it persist through to the Apply. This will be used by helper/schema
for timeout storage being done by @catsby.

The type here is `map[string]interface{}`. A couple notes:

  * **Not using `string`**: The Meta field of InstanceState is a string
    value. We've learned that forcing things to strings is bad. Let's
    just allow types.

  * **Primitives only**: Even though it is type `interface{}`, it must
    be able to cleanly pass the go-plugin RPC barrier as well as be
    encoded to a file as Gob. Given these constraints, the value must
    only comprise of primitive types and collections. No structs,
    functions, channels, etc.
2017-01-31 11:50:37 -08:00

78 lines
1.5 KiB
Go

package terraform
import (
"bytes"
"strings"
"testing"
)
func TestReadWritePlan(t *testing.T) {
plan := &Plan{
Module: testModule(t, "new-good"),
Diff: &Diff{
Modules: []*ModuleDiff{
&ModuleDiff{
Path: rootModulePath,
Resources: map[string]*InstanceDiff{
"nodeA": &InstanceDiff{
Attributes: map[string]*ResourceAttrDiff{
"foo": &ResourceAttrDiff{
Old: "foo",
New: "bar",
},
"bar": &ResourceAttrDiff{
Old: "foo",
NewComputed: true,
},
"longfoo": &ResourceAttrDiff{
Old: "foo",
New: "bar",
RequiresNew: true,
},
},
Meta: map[string]interface{}{
"foo": []interface{}{1, 2, 3},
},
},
},
},
},
},
State: &State{
Modules: []*ModuleState{
&ModuleState{
Path: rootModulePath,
Resources: map[string]*ResourceState{
"foo": &ResourceState{
Primary: &InstanceState{
ID: "bar",
},
},
},
},
},
},
Vars: map[string]interface{}{
"foo": "bar",
},
}
buf := new(bytes.Buffer)
if err := WritePlan(plan, buf); err != nil {
t.Fatalf("err: %s", err)
}
actual, err := ReadPlan(buf)
if err != nil {
t.Fatalf("err: %s", err)
}
actualStr := strings.TrimSpace(actual.String())
expectedStr := strings.TrimSpace(plan.String())
if actualStr != expectedStr {
t.Fatalf("bad:\n\n%s\n\nexpected:\n\n%s", actualStr, expectedStr)
}
}