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Amend Plan Resource Change To Allow For Optional Blocks #552

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merged 3 commits into from Nov 28, 2022
Merged

Amend Plan Resource Change To Allow For Optional Blocks #552

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f738135
Modifying handling of blocks during plan resource change to allow opt…
bendbennett Nov 28, 2022
10e03e4
Adding changelog entry and ensuring MarkComputedNilsAsUnknown is exec…
bendbennett Nov 28, 2022
c2b5b84
Merge branch 'main' into bendbennett/issues-551
bendbennett Nov 28, 2022
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3 changes: 3 additions & 0 deletions .changelog/552.txt
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@@ -0,0 +1,3 @@
```release-note:bug
internal/fwserver: Ensured blocks are ignored when marking computed nils as unknown during resource change planning
```
6 changes: 6 additions & 0 deletions internal/fwserver/server_planresourcechange.go
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Expand Up @@ -291,6 +291,12 @@ func MarkComputedNilsAsUnknown(ctx context.Context, config tftypes.Value, resour
return val, nil
}

if errors.Is(err, tfsdk.ErrPathIsBlock) {
// ignore blocks, they do not have a computed field
logging.FrameworkTrace(ctx, "attribute is a block, not marking unknown")
return val, nil
}

logging.FrameworkError(ctx, "couldn't find attribute in resource schema")

return tftypes.Value{}, fmt.Errorf("couldn't find attribute in resource schema: %w", err)
Expand Down
111 changes: 111 additions & 0 deletions internal/fwserver/server_planresourcechange_test.go
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Expand Up @@ -274,6 +274,18 @@ func TestServerPlanResourceChange(t *testing.T) {
},
}

testSchemaBlockType := tftypes.Object{
AttributeTypes: map[string]tftypes.Type{
"test_required": tftypes.String,
"test_optional_block": tftypes.Object{
AttributeTypes: map[string]tftypes.Type{
"test_optional_one": tftypes.String,
"test_optional_two": tftypes.String,
},
},
},
}

testSchemaTypeComputed := tftypes.Object{
AttributeTypes: map[string]tftypes.Type{
"test_computed": tftypes.String,
Expand All @@ -293,6 +305,30 @@ func TestServerPlanResourceChange(t *testing.T) {
},
}

testSchemaBlock := tfsdk.Schema{
Attributes: map[string]tfsdk.Attribute{
"test_required": {
Required: true,
Type: types.StringType,
},
},
Blocks: map[string]tfsdk.Block{
"test_optional_block": {
Attributes: map[string]tfsdk.Attribute{
"test_optional_one": {
Type: types.StringType,
Optional: true,
},
"test_optional_two": {
Type: types.StringType,
Optional: true,
},
},
NestingMode: tfsdk.BlockNestingModeSingle,
},
},
}

testEmptyPlan := &tfsdk.Plan{
Raw: tftypes.NewValue(testSchemaType, nil),
Schema: testSchema,
Expand All @@ -308,6 +344,11 @@ func TestServerPlanResourceChange(t *testing.T) {
TestRequired types.String `tfsdk:"test_required"`
}

type testSchemaDataBlock struct {
TestRequired types.String `tfsdk:"test_required"`
TestOptionalBlock types.Object `tfsdk:"test_optional_block"`
}

testSchemaAttributePlanModifierAttributePlan := tfsdk.Schema{
Attributes: map[string]tfsdk.Attribute{
"test_computed": {
Expand Down Expand Up @@ -1935,6 +1976,76 @@ func TestServerPlanResourceChange(t *testing.T) {
PlannedPrivate: testEmptyPrivate,
},
},
"update-resourcewithmodifyplan-request-config-nil-block": {
server: &fwserver.Server{
Provider: &testprovider.Provider{},
},
request: &fwserver.PlanResourceChangeRequest{
Config: &tfsdk.Config{
Raw: tftypes.NewValue(testSchemaBlockType, map[string]tftypes.Value{
"test_required": tftypes.NewValue(tftypes.String, "test-new-value"),
"test_optional_block": tftypes.NewValue(tftypes.Object{
AttributeTypes: map[string]tftypes.Type{
"test_optional_one": tftypes.String,
"test_optional_two": tftypes.String,
},
}, nil),
}),
Schema: testSchemaBlock,
},
ProposedNewState: &tfsdk.Plan{
Raw: tftypes.NewValue(testSchemaBlockType, map[string]tftypes.Value{
"test_required": tftypes.NewValue(tftypes.String, "test-new-value"),
"test_optional_block": tftypes.NewValue(tftypes.Object{
AttributeTypes: map[string]tftypes.Type{
"test_optional_one": tftypes.String,
"test_optional_two": tftypes.String,
},
}, nil),
}),
Schema: testSchemaBlock,
},
PriorState: &tfsdk.State{
Raw: tftypes.NewValue(testSchemaBlockType, map[string]tftypes.Value{
"test_required": tftypes.NewValue(tftypes.String, "test-old-value"),
"test_optional_block": tftypes.NewValue(tftypes.Object{
AttributeTypes: map[string]tftypes.Type{
"test_optional_one": tftypes.String,
"test_optional_two": tftypes.String,
},
}, nil),
}),
Schema: testSchemaBlock,
},
ResourceSchema: testSchemaBlock,
Resource: &testprovider.ResourceWithModifyPlan{
ModifyPlanMethod: func(ctx context.Context, req resource.ModifyPlanRequest, resp *resource.ModifyPlanResponse) {
var data testSchemaDataBlock

resp.Diagnostics.Append(req.Config.Get(ctx, &data)...)

if data.TestRequired.ValueString() != "test-new-value" {
resp.Diagnostics.AddError("Unexpected req.Config Value", "Got: "+data.TestRequired.ValueString())
}
},
},
},
expectedResponse: &fwserver.PlanResourceChangeResponse{
PlannedState: &tfsdk.State{
Raw: tftypes.NewValue(testSchemaBlockType, map[string]tftypes.Value{
"test_required": tftypes.NewValue(tftypes.String, "test-new-value"),
"test_optional_block": tftypes.NewValue(tftypes.Object{
AttributeTypes: map[string]tftypes.Type{
"test_optional_one": tftypes.String,
"test_optional_two": tftypes.String,
},
}, nil),
}),
Schema: testSchemaBlock,
},
PlannedPrivate: testEmptyPrivate,
},
},
"update-resourcewithmodifyplan-request-proposednewstate": {
server: &fwserver.Server{
Provider: &testprovider.Provider{},
Expand Down