terraform/configs/configschema/path_test.go

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package configschema
import (
"testing"
"github.com/zclconf/go-cty/cty"
)
func TestAttributeByPath(t *testing.T) {
schema := &Block{
Attributes: map[string]*Attribute{
"a1": {Description: "a1"},
"a2": {Description: "a2"},
},
BlockTypes: map[string]*NestedBlock{
"b1": {
Nesting: NestingList,
Block: Block{
Attributes: map[string]*Attribute{
"a3": {Description: "a3"},
"a4": {Description: "a4"},
},
BlockTypes: map[string]*NestedBlock{
"b2": {
Nesting: NestingMap,
Block: Block{
Attributes: map[string]*Attribute{
"a5": {Description: "a5"},
"a6": {Description: "a6"},
},
},
},
},
},
},
"b3": {
Nesting: NestingMap,
Block: Block{
Attributes: map[string]*Attribute{
"a7": {Description: "a7"},
"a8": {Description: "a8"},
},
BlockTypes: map[string]*NestedBlock{
"b4": {
Nesting: NestingSet,
Block: Block{
Attributes: map[string]*Attribute{
"a9": {Description: "a9"},
"a10": {Description: "a10"},
},
},
},
},
},
},
},
}
for _, tc := range []struct {
path cty.Path
attrDescription string
exists bool
}{
{
cty.GetAttrPath("a2"),
"a2",
true,
},
{
cty.GetAttrPath("b1"),
"block",
false,
},
{
cty.GetAttrPath("b1").IndexInt(1).GetAttr("a3"),
"a3",
true,
},
{
cty.GetAttrPath("b1").IndexInt(1).GetAttr("b2").IndexString("foo").GetAttr("a7"),
"missing",
false,
},
{
cty.GetAttrPath("b1").IndexInt(1).GetAttr("b2").IndexString("foo").GetAttr("a6"),
"a6",
true,
},
{
cty.GetAttrPath("b3").IndexString("foo").GetAttr("b2").IndexString("foo").GetAttr("a7"),
"missing_block",
false,
},
{
cty.GetAttrPath("b3").IndexString("foo").GetAttr("a7"),
"a7",
true,
},
{
// Index steps don't apply to the schema, so the set Index value doesn't matter.
cty.GetAttrPath("b3").IndexString("foo").GetAttr("b4").Index(cty.EmptyObjectVal).GetAttr("a9"),
"a9",
true,
},
} {
t.Run(tc.attrDescription, func(t *testing.T) {
attr := schema.AttributeByPath(tc.path)
if !tc.exists && attr == nil {
return
}
if attr == nil {
t.Fatalf("missing attribute from path %#v\n", tc.path)
}
if attr.Description != tc.attrDescription {
t.Fatalf("expected Attribute for %q, got %#v\n", tc.attrDescription, attr)
}
})
}
}