terraform/internal/addrs/move_endpoint_test.go

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package addrs
import (
"fmt"
"testing"
"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
"github.com/hashicorp/hcl/v2"
"github.com/hashicorp/hcl/v2/hclsyntax"
)
func TestParseMoveEndpoint(t *testing.T) {
tests := []struct {
Input string
WantRel AbsMoveable // funny intermediate subset of AbsMovable
WantErr string
}{
{
`foo.bar`,
AbsResourceInstance{
Module: RootModuleInstance,
Resource: ResourceInstance{
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
Key: NoKey,
},
},
``,
},
{
`foo.bar[0]`,
AbsResourceInstance{
Module: RootModuleInstance,
Resource: ResourceInstance{
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
Key: IntKey(0),
},
},
``,
},
{
`foo.bar["a"]`,
AbsResourceInstance{
Module: RootModuleInstance,
Resource: ResourceInstance{
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
Key: StringKey("a"),
},
},
``,
},
{
`module.boop.foo.bar`,
AbsResourceInstance{
Module: ModuleInstance{
ModuleInstanceStep{Name: "boop"},
},
Resource: ResourceInstance{
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
Key: NoKey,
},
},
``,
},
{
`module.boop.foo.bar[0]`,
AbsResourceInstance{
Module: ModuleInstance{
ModuleInstanceStep{Name: "boop"},
},
Resource: ResourceInstance{
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
Key: IntKey(0),
},
},
``,
},
{
`module.boop.foo.bar["a"]`,
AbsResourceInstance{
Module: ModuleInstance{
ModuleInstanceStep{Name: "boop"},
},
Resource: ResourceInstance{
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
Key: StringKey("a"),
},
},
``,
},
{
`data.foo.bar`,
AbsResourceInstance{
Module: RootModuleInstance,
Resource: ResourceInstance{
Resource: Resource{
Mode: DataResourceMode,
Type: "foo",
Name: "bar",
},
Key: NoKey,
},
},
``,
},
{
`data.foo.bar[0]`,
AbsResourceInstance{
Module: RootModuleInstance,
Resource: ResourceInstance{
Resource: Resource{
Mode: DataResourceMode,
Type: "foo",
Name: "bar",
},
Key: IntKey(0),
},
},
``,
},
{
`data.foo.bar["a"]`,
AbsResourceInstance{
Module: RootModuleInstance,
Resource: ResourceInstance{
Resource: Resource{
Mode: DataResourceMode,
Type: "foo",
Name: "bar",
},
Key: StringKey("a"),
},
},
``,
},
{
`module.boop.data.foo.bar`,
AbsResourceInstance{
Module: ModuleInstance{
ModuleInstanceStep{Name: "boop"},
},
Resource: ResourceInstance{
Resource: Resource{
Mode: DataResourceMode,
Type: "foo",
Name: "bar",
},
Key: NoKey,
},
},
``,
},
{
`module.boop.data.foo.bar[0]`,
AbsResourceInstance{
Module: ModuleInstance{
ModuleInstanceStep{Name: "boop"},
},
Resource: ResourceInstance{
Resource: Resource{
Mode: DataResourceMode,
Type: "foo",
Name: "bar",
},
Key: IntKey(0),
},
},
``,
},
{
`module.boop.data.foo.bar["a"]`,
AbsResourceInstance{
Module: ModuleInstance{
ModuleInstanceStep{Name: "boop"},
},
Resource: ResourceInstance{
Resource: Resource{
Mode: DataResourceMode,
Type: "foo",
Name: "bar",
},
Key: StringKey("a"),
},
},
``,
},
{
`module.foo`,
ModuleInstance{
ModuleInstanceStep{Name: "foo"},
},
``,
},
{
`module.foo[0]`,
ModuleInstance{
ModuleInstanceStep{Name: "foo", InstanceKey: IntKey(0)},
},
``,
},
{
`module.foo["a"]`,
ModuleInstance{
ModuleInstanceStep{Name: "foo", InstanceKey: StringKey("a")},
},
``,
},
{
`module.foo.module.bar`,
ModuleInstance{
ModuleInstanceStep{Name: "foo"},
ModuleInstanceStep{Name: "bar"},
},
``,
},
{
`module.foo[1].module.bar`,
ModuleInstance{
ModuleInstanceStep{Name: "foo", InstanceKey: IntKey(1)},
ModuleInstanceStep{Name: "bar"},
},
``,
},
{
`module.foo.module.bar[1]`,
ModuleInstance{
ModuleInstanceStep{Name: "foo"},
ModuleInstanceStep{Name: "bar", InstanceKey: IntKey(1)},
},
``,
},
{
`module.foo[0].module.bar[1]`,
ModuleInstance{
ModuleInstanceStep{Name: "foo", InstanceKey: IntKey(0)},
ModuleInstanceStep{Name: "bar", InstanceKey: IntKey(1)},
},
``,
},
{
`module`,
nil,
`Invalid address operator: Prefix "module." must be followed by a module name.`,
},
{
`module[0]`,
nil,
`Invalid address operator: Prefix "module." must be followed by a module name.`,
},
{
`module.foo.data`,
nil,
`Invalid address: Resource specification must include a resource type and name.`,
},
{
`module.foo.data.bar`,
nil,
`Invalid address: Resource specification must include a resource type and name.`,
},
{
`module.foo.data[0]`,
nil,
`Invalid address: Resource specification must include a resource type and name.`,
},
{
`module.foo.data.bar[0]`,
nil,
`Invalid address: A resource name is required.`,
},
{
`module.foo.bar`,
nil,
`Invalid address: Resource specification must include a resource type and name.`,
},
{
`module.foo.bar[0]`,
nil,
`Invalid address: A resource name is required.`,
},
}
for _, test := range tests {
t.Run(test.Input, func(t *testing.T) {
traversal, hclDiags := hclsyntax.ParseTraversalAbs([]byte(test.Input), "", hcl.InitialPos)
if hclDiags.HasErrors() {
// We're not trying to test the HCL parser here, so any
// failures at this point are likely to be bugs in the
// test case itself.
t.Fatalf("syntax error: %s", hclDiags.Error())
}
moveEp, diags := ParseMoveEndpoint(traversal)
switch {
case test.WantErr != "":
if !diags.HasErrors() {
t.Fatalf("unexpected success\nwant error: %s", test.WantErr)
}
gotErr := diags.Err().Error()
if gotErr != test.WantErr {
t.Fatalf("wrong error\ngot: %s\nwant: %s", gotErr, test.WantErr)
}
default:
if diags.HasErrors() {
t.Fatalf("unexpected error: %s", diags.Err().Error())
}
if diff := cmp.Diff(test.WantRel, moveEp.relSubject); diff != "" {
t.Errorf("wrong result\n%s", diff)
}
}
})
}
}
func TestUnifyMoveEndpoints(t *testing.T) {
tests := []struct {
InputFrom, InputTo string
Module ModuleInstance
WantFrom, WantTo AbsMoveable
}{
{
InputFrom: `foo.bar`,
InputTo: `foo.baz`,
Module: RootModuleInstance,
WantFrom: AbsResource{
Module: RootModuleInstance,
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
},
WantTo: AbsResource{
Module: RootModuleInstance,
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "baz",
},
},
},
{
InputFrom: `foo.bar`,
InputTo: `foo.baz`,
Module: RootModuleInstance.Child("a", NoKey),
WantFrom: AbsResource{
Module: RootModuleInstance.Child("a", NoKey),
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
},
WantTo: AbsResource{
Module: RootModuleInstance.Child("a", NoKey),
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "baz",
},
},
},
{
InputFrom: `foo.bar`,
InputTo: `module.b[0].foo.baz`,
Module: RootModuleInstance.Child("a", NoKey),
WantFrom: AbsResource{
Module: RootModuleInstance.Child("a", NoKey),
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
},
WantTo: AbsResource{
Module: RootModuleInstance.Child("a", NoKey).Child("b", IntKey(0)),
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "baz",
},
},
},
{
InputFrom: `foo.bar`,
InputTo: `foo.bar["thing"]`,
Module: RootModuleInstance,
WantFrom: AbsResourceInstance{
Module: RootModuleInstance,
Resource: ResourceInstance{
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
},
},
WantTo: AbsResourceInstance{
Module: RootModuleInstance,
Resource: ResourceInstance{
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
Key: StringKey("thing"),
},
},
},
{
InputFrom: `foo.bar["thing"]`,
InputTo: `foo.bar`,
Module: RootModuleInstance,
WantFrom: AbsResourceInstance{
Module: RootModuleInstance,
Resource: ResourceInstance{
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
Key: StringKey("thing"),
},
},
WantTo: AbsResourceInstance{
Module: RootModuleInstance,
Resource: ResourceInstance{
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
},
},
},
{
InputFrom: `foo.bar["a"]`,
InputTo: `foo.bar["b"]`,
Module: RootModuleInstance,
WantFrom: AbsResourceInstance{
Module: RootModuleInstance,
Resource: ResourceInstance{
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
Key: StringKey("a"),
},
},
WantTo: AbsResourceInstance{
Module: RootModuleInstance,
Resource: ResourceInstance{
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
Key: StringKey("b"),
},
},
},
{
InputFrom: `module.foo`,
InputTo: `module.bar`,
Module: RootModuleInstance,
WantFrom: AbsModuleCall{
Module: RootModuleInstance,
Call: ModuleCall{Name: "foo"},
},
WantTo: AbsModuleCall{
Module: RootModuleInstance,
Call: ModuleCall{Name: "bar"},
},
},
{
InputFrom: `module.foo`,
InputTo: `module.bar.module.baz`,
Module: RootModuleInstance,
WantFrom: AbsModuleCall{
Module: RootModuleInstance,
Call: ModuleCall{Name: "foo"},
},
WantTo: AbsModuleCall{
Module: RootModuleInstance.Child("bar", NoKey),
Call: ModuleCall{Name: "baz"},
},
},
{
InputFrom: `module.foo`,
InputTo: `module.bar.module.baz`,
Module: RootModuleInstance.Child("bloop", StringKey("hi")),
WantFrom: AbsModuleCall{
Module: RootModuleInstance.Child("bloop", StringKey("hi")),
Call: ModuleCall{Name: "foo"},
},
WantTo: AbsModuleCall{
Module: RootModuleInstance.Child("bloop", StringKey("hi")).Child("bar", NoKey),
Call: ModuleCall{Name: "baz"},
},
},
{
InputFrom: `module.foo[0]`,
InputTo: `module.foo["a"]`,
Module: RootModuleInstance,
WantFrom: RootModuleInstance.Child("foo", IntKey(0)),
WantTo: RootModuleInstance.Child("foo", StringKey("a")),
},
{
InputFrom: `module.foo`,
InputTo: `module.foo["a"]`,
Module: RootModuleInstance,
WantFrom: RootModuleInstance.Child("foo", NoKey),
WantTo: RootModuleInstance.Child("foo", StringKey("a")),
},
{
InputFrom: `module.foo[0]`,
InputTo: `module.foo`,
Module: RootModuleInstance,
WantFrom: RootModuleInstance.Child("foo", IntKey(0)),
WantTo: RootModuleInstance.Child("foo", NoKey),
},
{
InputFrom: `module.foo[0]`,
InputTo: `module.foo`,
Module: RootModuleInstance.Child("bloop", NoKey),
WantFrom: RootModuleInstance.Child("bloop", NoKey).Child("foo", IntKey(0)),
WantTo: RootModuleInstance.Child("bloop", NoKey).Child("foo", NoKey),
},
{
InputFrom: `module.foo`,
InputTo: `foo.bar`,
Module: RootModuleInstance,
WantFrom: nil, // Can't unify module call with resource
WantTo: nil,
},
{
InputFrom: `module.foo[0]`,
InputTo: `foo.bar`,
Module: RootModuleInstance,
WantFrom: nil, // Can't unify module instance with resource
WantTo: nil,
},
{
InputFrom: `module.foo`,
InputTo: `foo.bar[0]`,
Module: RootModuleInstance,
WantFrom: nil, // Can't unify module call with resource instance
WantTo: nil,
},
{
InputFrom: `module.foo[0]`,
InputTo: `foo.bar[0]`,
Module: RootModuleInstance,
WantFrom: nil, // Can't unify module instance with resource instance
WantTo: nil,
},
}
for _, test := range tests {
t.Run(fmt.Sprintf("%s to %s in %s", test.InputFrom, test.InputTo, test.Module), func(t *testing.T) {
parseInput := func(input string) *MoveEndpoint {
t.Helper()
traversal, hclDiags := hclsyntax.ParseTraversalAbs([]byte(input), "", hcl.InitialPos)
if hclDiags.HasErrors() {
// We're not trying to test the HCL parser here, so any
// failures at this point are likely to be bugs in the
// test case itself.
t.Fatalf("syntax error: %s", hclDiags.Error())
}
moveEp, diags := ParseMoveEndpoint(traversal)
if diags.HasErrors() {
t.Fatalf("unexpected error: %s", diags.Err().Error())
}
return moveEp
}
fromEp := parseInput(test.InputFrom)
toEp := parseInput(test.InputTo)
diffOpts := cmpopts.IgnoreUnexported(ModuleCall{})
gotFrom, gotTo := UnifyMoveEndpoints(test.Module, fromEp, toEp)
if diff := cmp.Diff(test.WantFrom, gotFrom, diffOpts); diff != "" {
t.Errorf("wrong 'from' address\n%s", diff)
}
if diff := cmp.Diff(test.WantTo, gotTo, diffOpts); diff != "" {
t.Errorf("wrong 'to' address\n%s", diff)
}
})
}
}
func TestMoveEndpointConfigMoveable(t *testing.T) {
tests := []struct {
Input string
Module Module
Want ConfigMoveable
}{
{
`foo.bar`,
RootModule,
ConfigResource{
Module: RootModule,
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
},
},
{
`foo.bar[0]`,
RootModule,
ConfigResource{
Module: RootModule,
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
},
},
{
`module.foo.bar.baz`,
RootModule,
ConfigResource{
Module: Module{"foo"},
Resource: Resource{
Mode: ManagedResourceMode,
Type: "bar",
Name: "baz",
},
},
},
{
`module.foo[0].bar.baz`,
RootModule,
ConfigResource{
Module: Module{"foo"},
Resource: Resource{
Mode: ManagedResourceMode,
Type: "bar",
Name: "baz",
},
},
},
{
`foo.bar`,
Module{"boop"},
ConfigResource{
Module: Module{"boop"},
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
},
},
{
`module.bloop.foo.bar`,
Module{"bleep"},
ConfigResource{
Module: Module{"bleep", "bloop"},
Resource: Resource{
Mode: ManagedResourceMode,
Type: "foo",
Name: "bar",
},
},
},
{
`module.foo.bar.baz`,
RootModule,
ConfigResource{
Module: Module{"foo"},
Resource: Resource{
Mode: ManagedResourceMode,
Type: "bar",
Name: "baz",
},
},
},
{
`module.foo`,
RootModule,
Module{"foo"},
},
{
`module.foo[0]`,
RootModule,
Module{"foo"},
},
{
`module.bloop`,
Module{"bleep"},
Module{"bleep", "bloop"},
},
{
`module.bloop[0]`,
Module{"bleep"},
Module{"bleep", "bloop"},
},
}
for _, test := range tests {
t.Run(fmt.Sprintf("%s in %s", test.Input, test.Module), func(t *testing.T) {
traversal, hclDiags := hclsyntax.ParseTraversalAbs([]byte(test.Input), "", hcl.InitialPos)
if hclDiags.HasErrors() {
// We're not trying to test the HCL parser here, so any
// failures at this point are likely to be bugs in the
// test case itself.
t.Fatalf("syntax error: %s", hclDiags.Error())
}
moveEp, diags := ParseMoveEndpoint(traversal)
if diags.HasErrors() {
t.Fatalf("unexpected error: %s", diags.Err().Error())
}
got := moveEp.ConfigMoveable(test.Module)
if diff := cmp.Diff(test.Want, got); diff != "" {
t.Errorf("wrong result\n%s", diff)
}
})
}
}