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objchange: fix ProposedNew from null objects #29701

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merged 2 commits into from
Oct 5, 2021
Merged

objchange: fix ProposedNew from null objects #29701

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18d3542
objchange: fix ProposedNew from null objects
jbardin Oct 4, 2021
58d85fc
add test for planing unknown data source values
jbardin Oct 5, 2021
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33 changes: 0 additions & 33 deletions internal/plans/objchange/all_null.go
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16 changes: 11 additions & 5 deletions internal/plans/objchange/objchange.go
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Original file line number Diff line number Diff line change
Expand Up @@ -37,7 +37,10 @@ func ProposedNew(schema *configschema.Block, prior, config cty.Value) cty.Value
// similar to the result of decoding an empty configuration block,
// which simplifies our handling of the top-level attributes/blocks
// below by giving us one non-null level of object to pull values from.
prior = AllBlockAttributesNull(schema)
//
// "All attributes null" happens to be the definition of EmptyValue for
// a Block, so we can just delegate to that
prior = schema.EmptyValue()
}
return proposedNew(schema, prior, config)
}
Expand Down Expand Up @@ -258,12 +261,15 @@ func proposedNewNestedBlock(schema *configschema.NestedBlock, prior, config cty.
}

func proposedNewAttributes(attrs map[string]*configschema.Attribute, prior, config cty.Value) map[string]cty.Value {
if prior.IsNull() {
prior = AllAttributesNull(attrs)
}
newAttrs := make(map[string]cty.Value, len(attrs))
for name, attr := range attrs {
priorV := prior.GetAttr(name)
var priorV cty.Value
if prior.IsNull() {
priorV = cty.NullVal(prior.Type().AttributeType(name))
} else {
priorV = prior.GetAttr(name)
}

configV := config.GetAttr(name)
var newV cty.Value
switch {
Expand Down
152 changes: 152 additions & 0 deletions internal/plans/objchange/objchange_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -1536,6 +1536,158 @@ func TestProposedNew(t *testing.T) {
}),
}),
},
"prior null nested objects": {
&configschema.Block{
Attributes: map[string]*configschema.Attribute{
"single": {
NestedType: &configschema.Object{
Nesting: configschema.NestingSingle,
Attributes: map[string]*configschema.Attribute{
"list": {
NestedType: &configschema.Object{
Nesting: configschema.NestingList,
Attributes: map[string]*configschema.Attribute{
"foo": {
Type: cty.String,
},
},
},
Optional: true,
},
},
},
Optional: true,
},
"map": {
NestedType: &configschema.Object{
Nesting: configschema.NestingMap,
Attributes: map[string]*configschema.Attribute{
"map": {
NestedType: &configschema.Object{
Nesting: configschema.NestingList,
Attributes: map[string]*configschema.Attribute{
"foo": {
Type: cty.String,
},
},
},
Optional: true,
},
},
},
Optional: true,
},
},
},
cty.NullVal(cty.Object(map[string]cty.Type{
"single": cty.Object(map[string]cty.Type{
"list": cty.List(cty.Object(map[string]cty.Type{
"foo": cty.String,
})),
}),
"map": cty.Map(cty.Object(map[string]cty.Type{
"list": cty.List(cty.Object(map[string]cty.Type{
"foo": cty.String,
})),
})),
})),
cty.ObjectVal(map[string]cty.Value{
"single": cty.ObjectVal(map[string]cty.Value{
"list": cty.ListVal([]cty.Value{
cty.ObjectVal(map[string]cty.Value{
"foo": cty.StringVal("a"),
}),
cty.ObjectVal(map[string]cty.Value{
"foo": cty.StringVal("b"),
}),
}),
}),
"map": cty.MapVal(map[string]cty.Value{
"one": cty.ObjectVal(map[string]cty.Value{
"list": cty.ListVal([]cty.Value{
cty.ObjectVal(map[string]cty.Value{
"foo": cty.StringVal("a"),
}),
cty.ObjectVal(map[string]cty.Value{
"foo": cty.StringVal("b"),
}),
}),
}),
}),
}),
cty.ObjectVal(map[string]cty.Value{
"single": cty.ObjectVal(map[string]cty.Value{
"list": cty.ListVal([]cty.Value{
cty.ObjectVal(map[string]cty.Value{
"foo": cty.StringVal("a"),
}),
cty.ObjectVal(map[string]cty.Value{
"foo": cty.StringVal("b"),
}),
}),
}),
"map": cty.MapVal(map[string]cty.Value{
"one": cty.ObjectVal(map[string]cty.Value{
"list": cty.ListVal([]cty.Value{
cty.ObjectVal(map[string]cty.Value{
"foo": cty.StringVal("a"),
}),
cty.ObjectVal(map[string]cty.Value{
"foo": cty.StringVal("b"),
}),
}),
}),
}),
}),
},

// data sources are planned with an unknown value
"unknown prior nested objects": {
&configschema.Block{
Attributes: map[string]*configschema.Attribute{
"list": {
NestedType: &configschema.Object{
Nesting: configschema.NestingList,
Attributes: map[string]*configschema.Attribute{
"list": {
NestedType: &configschema.Object{
Nesting: configschema.NestingList,
Attributes: map[string]*configschema.Attribute{
"foo": {
Type: cty.String,
},
},
},
Computed: true,
},
},
},
Computed: true,
},
},
},
cty.UnknownVal(cty.Object(map[string]cty.Type{
"List": cty.List(cty.Object(map[string]cty.Type{
"list": cty.List(cty.Object(map[string]cty.Type{
"foo": cty.String,
})),
})),
})),
cty.NullVal(cty.Object(map[string]cty.Type{
"List": cty.List(cty.Object(map[string]cty.Type{
"list": cty.List(cty.Object(map[string]cty.Type{
"foo": cty.String,
})),
})),
})),
cty.UnknownVal(cty.Object(map[string]cty.Type{
"List": cty.List(cty.Object(map[string]cty.Type{
"list": cty.List(cty.Object(map[string]cty.Type{
"foo": cty.String,
})),
})),
})),
},
}

for name, test := range tests {
Expand Down