771 lines
18 KiB
Go
771 lines
18 KiB
Go
package lang
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import (
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"bytes"
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"encoding/json"
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"testing"
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"github.com/hashicorp/terraform/addrs"
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"github.com/hashicorp/terraform/configs/configschema"
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"github.com/hashicorp/terraform/instances"
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"github.com/hashicorp/hcl/v2"
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"github.com/hashicorp/hcl/v2/hclsyntax"
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"github.com/zclconf/go-cty/cty"
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ctyjson "github.com/zclconf/go-cty/cty/json"
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)
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func TestScopeEvalContext(t *testing.T) {
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data := &dataForTests{
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CountAttrs: map[string]cty.Value{
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"index": cty.NumberIntVal(0),
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},
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ForEachAttrs: map[string]cty.Value{
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"key": cty.StringVal("a"),
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"value": cty.NumberIntVal(1),
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},
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Resources: map[string]cty.Value{
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"null_resource.foo": cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("bar"),
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}),
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"data.null_data_source.foo": cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("bar"),
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}),
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"null_resource.multi": cty.TupleVal([]cty.Value{
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cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("multi0"),
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}),
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cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("multi1"),
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}),
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}),
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"null_resource.each": cty.ObjectVal(map[string]cty.Value{
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"each0": cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("each0"),
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}),
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"each1": cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("each1"),
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}),
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}),
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"null_resource.multi[1]": cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("multi1"),
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}),
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},
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LocalValues: map[string]cty.Value{
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"foo": cty.StringVal("bar"),
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},
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Modules: map[string]cty.Value{
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"module.foo": cty.ObjectVal(map[string]cty.Value{
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"output0": cty.StringVal("bar0"),
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"output1": cty.StringVal("bar1"),
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}),
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},
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PathAttrs: map[string]cty.Value{
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"module": cty.StringVal("foo/bar"),
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},
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TerraformAttrs: map[string]cty.Value{
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"workspace": cty.StringVal("default"),
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},
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InputVariables: map[string]cty.Value{
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"baz": cty.StringVal("boop"),
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},
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}
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tests := []struct {
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Expr string
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Want map[string]cty.Value
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}{
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{
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`12`,
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map[string]cty.Value{},
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},
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{
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`count.index`,
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map[string]cty.Value{
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"count": cty.ObjectVal(map[string]cty.Value{
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"index": cty.NumberIntVal(0),
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}),
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},
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},
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{
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`each.key`,
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map[string]cty.Value{
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"each": cty.ObjectVal(map[string]cty.Value{
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"key": cty.StringVal("a"),
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}),
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},
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},
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{
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`each.value`,
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map[string]cty.Value{
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"each": cty.ObjectVal(map[string]cty.Value{
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"value": cty.NumberIntVal(1),
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}),
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},
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},
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{
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`local.foo`,
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map[string]cty.Value{
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"local": cty.ObjectVal(map[string]cty.Value{
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"foo": cty.StringVal("bar"),
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}),
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},
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},
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{
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`null_resource.foo`,
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map[string]cty.Value{
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"null_resource": cty.ObjectVal(map[string]cty.Value{
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"foo": cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("bar"),
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}),
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}),
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},
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},
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{
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`null_resource.foo.attr`,
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map[string]cty.Value{
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"null_resource": cty.ObjectVal(map[string]cty.Value{
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"foo": cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("bar"),
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}),
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}),
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},
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},
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{
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`null_resource.multi`,
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map[string]cty.Value{
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"null_resource": cty.ObjectVal(map[string]cty.Value{
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"multi": cty.TupleVal([]cty.Value{
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cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("multi0"),
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}),
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cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("multi1"),
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}),
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}),
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}),
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},
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},
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{
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// at this level, all instance references return the entire resource
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`null_resource.multi[1]`,
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map[string]cty.Value{
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"null_resource": cty.ObjectVal(map[string]cty.Value{
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"multi": cty.TupleVal([]cty.Value{
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cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("multi0"),
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}),
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cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("multi1"),
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}),
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}),
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}),
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},
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},
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{
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// at this level, all instance references return the entire resource
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`null_resource.each["each1"]`,
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map[string]cty.Value{
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"null_resource": cty.ObjectVal(map[string]cty.Value{
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"each": cty.ObjectVal(map[string]cty.Value{
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"each0": cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("each0"),
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}),
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"each1": cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("each1"),
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}),
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}),
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}),
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},
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},
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{
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// at this level, all instance references return the entire resource
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`null_resource.each["each1"].attr`,
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map[string]cty.Value{
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"null_resource": cty.ObjectVal(map[string]cty.Value{
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"each": cty.ObjectVal(map[string]cty.Value{
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"each0": cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("each0"),
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}),
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"each1": cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("each1"),
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}),
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}),
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}),
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},
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},
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{
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`foo(null_resource.multi, null_resource.multi[1])`,
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map[string]cty.Value{
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"null_resource": cty.ObjectVal(map[string]cty.Value{
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"multi": cty.TupleVal([]cty.Value{
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cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("multi0"),
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}),
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cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("multi1"),
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}),
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}),
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}),
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},
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},
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{
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`data.null_data_source.foo`,
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map[string]cty.Value{
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"data": cty.ObjectVal(map[string]cty.Value{
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"null_data_source": cty.ObjectVal(map[string]cty.Value{
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"foo": cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("bar"),
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}),
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}),
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}),
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},
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},
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{
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`module.foo`,
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map[string]cty.Value{
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"module": cty.ObjectVal(map[string]cty.Value{
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"foo": cty.ObjectVal(map[string]cty.Value{
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"output0": cty.StringVal("bar0"),
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"output1": cty.StringVal("bar1"),
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}),
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}),
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},
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},
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// any module reference returns the entire module
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{
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`module.foo.output1`,
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map[string]cty.Value{
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"module": cty.ObjectVal(map[string]cty.Value{
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"foo": cty.ObjectVal(map[string]cty.Value{
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"output0": cty.StringVal("bar0"),
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"output1": cty.StringVal("bar1"),
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}),
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}),
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},
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},
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{
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`path.module`,
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map[string]cty.Value{
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"path": cty.ObjectVal(map[string]cty.Value{
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"module": cty.StringVal("foo/bar"),
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}),
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},
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},
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{
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`self.baz`,
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map[string]cty.Value{
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"self": cty.ObjectVal(map[string]cty.Value{
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"attr": cty.StringVal("multi1"),
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}),
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},
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},
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{
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`terraform.workspace`,
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map[string]cty.Value{
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"terraform": cty.ObjectVal(map[string]cty.Value{
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"workspace": cty.StringVal("default"),
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}),
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},
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},
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{
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`var.baz`,
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map[string]cty.Value{
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"var": cty.ObjectVal(map[string]cty.Value{
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"baz": cty.StringVal("boop"),
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}),
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},
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},
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}
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for _, test := range tests {
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t.Run(test.Expr, func(t *testing.T) {
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expr, parseDiags := hclsyntax.ParseExpression([]byte(test.Expr), "", hcl.Pos{Line: 1, Column: 1})
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if len(parseDiags) != 0 {
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t.Errorf("unexpected diagnostics during parse")
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for _, diag := range parseDiags {
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t.Errorf("- %s", diag)
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}
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return
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}
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refs, refsDiags := ReferencesInExpr(expr)
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if refsDiags.HasErrors() {
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t.Fatal(refsDiags.Err())
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}
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scope := &Scope{
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Data: data,
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// "self" will just be an arbitrary one of the several resource
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// instances we have in our test dataset.
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SelfAddr: addrs.ResourceInstance{
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Resource: addrs.Resource{
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Mode: addrs.ManagedResourceMode,
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Type: "null_resource",
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Name: "multi",
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},
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Key: addrs.IntKey(1),
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},
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}
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ctx, ctxDiags := scope.EvalContext(refs)
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if ctxDiags.HasErrors() {
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t.Fatal(ctxDiags.Err())
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}
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// For easier test assertions we'll just remove any top-level
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// empty objects from our variables map.
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for k, v := range ctx.Variables {
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if v.RawEquals(cty.EmptyObjectVal) {
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delete(ctx.Variables, k)
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}
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}
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gotVal := cty.ObjectVal(ctx.Variables)
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wantVal := cty.ObjectVal(test.Want)
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if !gotVal.RawEquals(wantVal) {
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// We'll JSON-ize our values here just so it's easier to
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// read them in the assertion output.
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gotJSON := formattedJSONValue(gotVal)
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wantJSON := formattedJSONValue(wantVal)
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t.Errorf(
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"wrong result\nexpr: %s\ngot: %s\nwant: %s",
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test.Expr, gotJSON, wantJSON,
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)
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}
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})
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}
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}
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func TestScopeExpandEvalBlock(t *testing.T) {
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nestedObjTy := cty.Object(map[string]cty.Type{
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"boop": cty.String,
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})
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schema := &configschema.Block{
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Attributes: map[string]*configschema.Attribute{
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"foo": {Type: cty.String, Optional: true},
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"list_of_obj": {Type: cty.List(nestedObjTy), Optional: true},
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},
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BlockTypes: map[string]*configschema.NestedBlock{
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"bar": {
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Nesting: configschema.NestingMap,
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Block: configschema.Block{
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Attributes: map[string]*configschema.Attribute{
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"baz": {Type: cty.String, Optional: true},
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},
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},
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},
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},
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}
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data := &dataForTests{
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LocalValues: map[string]cty.Value{
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"greeting": cty.StringVal("howdy"),
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"list": cty.ListVal([]cty.Value{
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cty.StringVal("elem0"),
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cty.StringVal("elem1"),
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}),
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"map": cty.MapVal(map[string]cty.Value{
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"key1": cty.StringVal("val1"),
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"key2": cty.StringVal("val2"),
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}),
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},
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}
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tests := map[string]struct {
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Config string
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Want cty.Value
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}{
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"empty": {
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`
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`,
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cty.ObjectVal(map[string]cty.Value{
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"foo": cty.NullVal(cty.String),
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"list_of_obj": cty.NullVal(cty.List(nestedObjTy)),
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"bar": cty.MapValEmpty(cty.Object(map[string]cty.Type{
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"baz": cty.String,
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})),
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}),
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},
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"literal attribute": {
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`
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foo = "hello"
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`,
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cty.ObjectVal(map[string]cty.Value{
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"foo": cty.StringVal("hello"),
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"list_of_obj": cty.NullVal(cty.List(nestedObjTy)),
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"bar": cty.MapValEmpty(cty.Object(map[string]cty.Type{
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"baz": cty.String,
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})),
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}),
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},
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"variable attribute": {
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`
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foo = local.greeting
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`,
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cty.ObjectVal(map[string]cty.Value{
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"foo": cty.StringVal("howdy"),
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"list_of_obj": cty.NullVal(cty.List(nestedObjTy)),
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"bar": cty.MapValEmpty(cty.Object(map[string]cty.Type{
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"baz": cty.String,
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})),
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}),
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},
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"one static block": {
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`
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bar "static" {}
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`,
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cty.ObjectVal(map[string]cty.Value{
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"foo": cty.NullVal(cty.String),
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"list_of_obj": cty.NullVal(cty.List(nestedObjTy)),
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"bar": cty.MapVal(map[string]cty.Value{
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"static": cty.ObjectVal(map[string]cty.Value{
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"baz": cty.NullVal(cty.String),
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}),
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}),
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}),
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},
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"two static blocks": {
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`
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bar "static0" {
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baz = 0
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}
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bar "static1" {
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baz = 1
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}
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`,
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cty.ObjectVal(map[string]cty.Value{
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"foo": cty.NullVal(cty.String),
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"list_of_obj": cty.NullVal(cty.List(nestedObjTy)),
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"bar": cty.MapVal(map[string]cty.Value{
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"static0": cty.ObjectVal(map[string]cty.Value{
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"baz": cty.StringVal("0"),
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}),
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"static1": cty.ObjectVal(map[string]cty.Value{
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"baz": cty.StringVal("1"),
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}),
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}),
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}),
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},
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"dynamic blocks from list": {
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`
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dynamic "bar" {
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for_each = local.list
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labels = [bar.value]
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content {
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baz = bar.key
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}
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}
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`,
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cty.ObjectVal(map[string]cty.Value{
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"foo": cty.NullVal(cty.String),
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"list_of_obj": cty.NullVal(cty.List(nestedObjTy)),
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"bar": cty.MapVal(map[string]cty.Value{
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"elem0": cty.ObjectVal(map[string]cty.Value{
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"baz": cty.StringVal("0"),
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}),
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"elem1": cty.ObjectVal(map[string]cty.Value{
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"baz": cty.StringVal("1"),
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}),
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}),
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}),
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},
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"dynamic blocks from map": {
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`
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dynamic "bar" {
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for_each = local.map
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labels = [bar.key]
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content {
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baz = bar.value
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}
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}
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`,
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cty.ObjectVal(map[string]cty.Value{
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"foo": cty.NullVal(cty.String),
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"list_of_obj": cty.NullVal(cty.List(nestedObjTy)),
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"bar": cty.MapVal(map[string]cty.Value{
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"key1": cty.ObjectVal(map[string]cty.Value{
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"baz": cty.StringVal("val1"),
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}),
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"key2": cty.ObjectVal(map[string]cty.Value{
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"baz": cty.StringVal("val2"),
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}),
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}),
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}),
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},
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"list-of-object attribute": {
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`
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list_of_obj = [
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{
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boop = local.greeting
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},
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]
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`,
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cty.ObjectVal(map[string]cty.Value{
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"foo": cty.NullVal(cty.String),
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"list_of_obj": cty.ListVal([]cty.Value{
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cty.ObjectVal(map[string]cty.Value{
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"boop": cty.StringVal("howdy"),
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}),
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}),
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"bar": cty.MapValEmpty(cty.Object(map[string]cty.Type{
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"baz": cty.String,
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})),
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}),
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},
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"list-of-object attribute as blocks": {
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`
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list_of_obj {
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boop = local.greeting
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}
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`,
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cty.ObjectVal(map[string]cty.Value{
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"foo": cty.NullVal(cty.String),
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"list_of_obj": cty.ListVal([]cty.Value{
|
|
cty.ObjectVal(map[string]cty.Value{
|
|
"boop": cty.StringVal("howdy"),
|
|
}),
|
|
}),
|
|
"bar": cty.MapValEmpty(cty.Object(map[string]cty.Type{
|
|
"baz": cty.String,
|
|
})),
|
|
}),
|
|
},
|
|
"lots of things at once": {
|
|
`
|
|
foo = "whoop"
|
|
bar "static0" {
|
|
baz = "s0"
|
|
}
|
|
dynamic "bar" {
|
|
for_each = local.list
|
|
labels = [bar.value]
|
|
content {
|
|
baz = bar.key
|
|
}
|
|
}
|
|
bar "static1" {
|
|
baz = "s1"
|
|
}
|
|
dynamic "bar" {
|
|
for_each = local.map
|
|
labels = [bar.key]
|
|
content {
|
|
baz = bar.value
|
|
}
|
|
}
|
|
bar "static2" {
|
|
baz = "s2"
|
|
}
|
|
`,
|
|
cty.ObjectVal(map[string]cty.Value{
|
|
"foo": cty.StringVal("whoop"),
|
|
"list_of_obj": cty.NullVal(cty.List(nestedObjTy)),
|
|
"bar": cty.MapVal(map[string]cty.Value{
|
|
"key1": cty.ObjectVal(map[string]cty.Value{
|
|
"baz": cty.StringVal("val1"),
|
|
}),
|
|
"key2": cty.ObjectVal(map[string]cty.Value{
|
|
"baz": cty.StringVal("val2"),
|
|
}),
|
|
"elem0": cty.ObjectVal(map[string]cty.Value{
|
|
"baz": cty.StringVal("0"),
|
|
}),
|
|
"elem1": cty.ObjectVal(map[string]cty.Value{
|
|
"baz": cty.StringVal("1"),
|
|
}),
|
|
"static0": cty.ObjectVal(map[string]cty.Value{
|
|
"baz": cty.StringVal("s0"),
|
|
}),
|
|
"static1": cty.ObjectVal(map[string]cty.Value{
|
|
"baz": cty.StringVal("s1"),
|
|
}),
|
|
"static2": cty.ObjectVal(map[string]cty.Value{
|
|
"baz": cty.StringVal("s2"),
|
|
}),
|
|
}),
|
|
}),
|
|
},
|
|
}
|
|
|
|
for name, test := range tests {
|
|
t.Run(name, func(t *testing.T) {
|
|
file, parseDiags := hclsyntax.ParseConfig([]byte(test.Config), "", hcl.Pos{Line: 1, Column: 1})
|
|
if len(parseDiags) != 0 {
|
|
t.Errorf("unexpected diagnostics during parse")
|
|
for _, diag := range parseDiags {
|
|
t.Errorf("- %s", diag)
|
|
}
|
|
return
|
|
}
|
|
|
|
body := file.Body
|
|
scope := &Scope{
|
|
Data: data,
|
|
}
|
|
|
|
body, expandDiags := scope.ExpandBlock(body, schema)
|
|
if expandDiags.HasErrors() {
|
|
t.Fatal(expandDiags.Err())
|
|
}
|
|
|
|
got, valDiags := scope.EvalBlock(body, schema)
|
|
if valDiags.HasErrors() {
|
|
t.Fatal(valDiags.Err())
|
|
}
|
|
|
|
if !got.RawEquals(test.Want) {
|
|
// We'll JSON-ize our values here just so it's easier to
|
|
// read them in the assertion output.
|
|
gotJSON := formattedJSONValue(got)
|
|
wantJSON := formattedJSONValue(test.Want)
|
|
|
|
t.Errorf(
|
|
"wrong result\nconfig: %s\ngot: %s\nwant: %s",
|
|
test.Config, gotJSON, wantJSON,
|
|
)
|
|
}
|
|
|
|
})
|
|
}
|
|
|
|
}
|
|
|
|
func formattedJSONValue(val cty.Value) string {
|
|
val = cty.UnknownAsNull(val) // since JSON can't represent unknowns
|
|
j, err := ctyjson.Marshal(val, val.Type())
|
|
if err != nil {
|
|
panic(err)
|
|
}
|
|
var buf bytes.Buffer
|
|
json.Indent(&buf, j, "", " ")
|
|
return buf.String()
|
|
}
|
|
|
|
func TestScopeEvalSelfBlock(t *testing.T) {
|
|
data := &dataForTests{
|
|
PathAttrs: map[string]cty.Value{
|
|
"module": cty.StringVal("foo/bar"),
|
|
"cwd": cty.StringVal("/home/foo/bar"),
|
|
"root": cty.StringVal("/home/foo"),
|
|
},
|
|
TerraformAttrs: map[string]cty.Value{
|
|
"workspace": cty.StringVal("default"),
|
|
},
|
|
}
|
|
schema := &configschema.Block{
|
|
Attributes: map[string]*configschema.Attribute{
|
|
"attr": {
|
|
Type: cty.String,
|
|
},
|
|
"num": {
|
|
Type: cty.Number,
|
|
},
|
|
},
|
|
}
|
|
|
|
tests := []struct {
|
|
Config string
|
|
Self cty.Value
|
|
KeyData instances.RepetitionData
|
|
Want map[string]cty.Value
|
|
}{
|
|
{
|
|
Config: `attr = self.foo`,
|
|
Self: cty.ObjectVal(map[string]cty.Value{
|
|
"foo": cty.StringVal("bar"),
|
|
}),
|
|
KeyData: instances.RepetitionData{
|
|
CountIndex: cty.NumberIntVal(0),
|
|
},
|
|
Want: map[string]cty.Value{
|
|
"attr": cty.StringVal("bar"),
|
|
"num": cty.NullVal(cty.Number),
|
|
},
|
|
},
|
|
{
|
|
Config: `num = count.index`,
|
|
KeyData: instances.RepetitionData{
|
|
CountIndex: cty.NumberIntVal(0),
|
|
},
|
|
Want: map[string]cty.Value{
|
|
"attr": cty.NullVal(cty.String),
|
|
"num": cty.NumberIntVal(0),
|
|
},
|
|
},
|
|
{
|
|
Config: `attr = each.key`,
|
|
KeyData: instances.RepetitionData{
|
|
EachKey: cty.StringVal("a"),
|
|
},
|
|
Want: map[string]cty.Value{
|
|
"attr": cty.StringVal("a"),
|
|
"num": cty.NullVal(cty.Number),
|
|
},
|
|
},
|
|
{
|
|
Config: `attr = path.cwd`,
|
|
Want: map[string]cty.Value{
|
|
"attr": cty.StringVal("/home/foo/bar"),
|
|
"num": cty.NullVal(cty.Number),
|
|
},
|
|
},
|
|
{
|
|
Config: `attr = path.module`,
|
|
Want: map[string]cty.Value{
|
|
"attr": cty.StringVal("foo/bar"),
|
|
"num": cty.NullVal(cty.Number),
|
|
},
|
|
},
|
|
{
|
|
Config: `attr = path.root`,
|
|
Want: map[string]cty.Value{
|
|
"attr": cty.StringVal("/home/foo"),
|
|
"num": cty.NullVal(cty.Number),
|
|
},
|
|
},
|
|
{
|
|
Config: `attr = terraform.workspace`,
|
|
Want: map[string]cty.Value{
|
|
"attr": cty.StringVal("default"),
|
|
"num": cty.NullVal(cty.Number),
|
|
},
|
|
},
|
|
}
|
|
|
|
for _, test := range tests {
|
|
t.Run(test.Config, func(t *testing.T) {
|
|
file, parseDiags := hclsyntax.ParseConfig([]byte(test.Config), "", hcl.Pos{Line: 1, Column: 1})
|
|
if len(parseDiags) != 0 {
|
|
t.Errorf("unexpected diagnostics during parse")
|
|
for _, diag := range parseDiags {
|
|
t.Errorf("- %s", diag)
|
|
}
|
|
return
|
|
}
|
|
|
|
body := file.Body
|
|
|
|
scope := &Scope{
|
|
Data: data,
|
|
}
|
|
|
|
gotVal, ctxDiags := scope.EvalSelfBlock(body, test.Self, schema, test.KeyData)
|
|
if ctxDiags.HasErrors() {
|
|
t.Fatal(ctxDiags.Err())
|
|
}
|
|
|
|
wantVal := cty.ObjectVal(test.Want)
|
|
|
|
if !gotVal.RawEquals(wantVal) {
|
|
t.Errorf(
|
|
"wrong result\nexpr: %s\ngot: %#v\nwant: %#v",
|
|
test.Config, gotVal, wantVal,
|
|
)
|
|
}
|
|
})
|
|
}
|
|
}
|