opentofu/internal/configs/configload/loader_snapshot_test.go
Martin Atkins 31349a9c3a Move configs/ to internal/configs/
This is part of a general effort to move all of Terraform's non-library
package surface under internal in order to reinforce that these are for
internal use within Terraform only.

If you were previously importing packages under this prefix into an
external codebase, you could pin to an earlier release tag as an interim
solution until you've make a plan to achieve the same functionality some
other way.
2021-05-17 14:09:07 -07:00

122 lines
3.3 KiB
Go

package configload
import (
"path/filepath"
"reflect"
"testing"
"github.com/davecgh/go-spew/spew"
"github.com/go-test/deep"
)
func TestLoadConfigWithSnapshot(t *testing.T) {
fixtureDir := filepath.Clean("testdata/already-installed")
loader, err := NewLoader(&Config{
ModulesDir: filepath.Join(fixtureDir, ".terraform/modules"),
})
if err != nil {
t.Fatalf("unexpected error from NewLoader: %s", err)
}
_, got, diags := loader.LoadConfigWithSnapshot(fixtureDir)
assertNoDiagnostics(t, diags)
if got == nil {
t.Fatalf("snapshot is nil; want non-nil")
}
t.Log(spew.Sdump(got))
{
gotModuleDirs := map[string]string{}
for k, m := range got.Modules {
gotModuleDirs[k] = m.Dir
}
wantModuleDirs := map[string]string{
"": "testdata/already-installed",
"child_a": "testdata/already-installed/.terraform/modules/child_a",
"child_a.child_c": "testdata/already-installed/.terraform/modules/child_a/child_c",
"child_b": "testdata/already-installed/.terraform/modules/child_b",
"child_b.child_d": "testdata/already-installed/.terraform/modules/child_b.child_d",
}
problems := deep.Equal(wantModuleDirs, gotModuleDirs)
for _, problem := range problems {
t.Errorf(problem)
}
if len(problems) > 0 {
return
}
}
gotRoot := got.Modules[""]
wantRoot := &SnapshotModule{
Dir: "testdata/already-installed",
Files: map[string][]byte{
"root.tf": []byte(`
module "child_a" {
source = "example.com/foo/bar_a/baz"
version = ">= 1.0.0"
}
module "child_b" {
source = "example.com/foo/bar_b/baz"
version = ">= 1.0.0"
}
`),
},
}
if !reflect.DeepEqual(gotRoot, wantRoot) {
t.Errorf("wrong root module snapshot\ngot: %swant: %s", spew.Sdump(gotRoot), spew.Sdump(wantRoot))
}
}
func TestSnapshotRoundtrip(t *testing.T) {
fixtureDir := filepath.Clean("testdata/already-installed")
loader, err := NewLoader(&Config{
ModulesDir: filepath.Join(fixtureDir, ".terraform/modules"),
})
if err != nil {
t.Fatalf("unexpected error from NewLoader: %s", err)
}
_, snap, diags := loader.LoadConfigWithSnapshot(fixtureDir)
assertNoDiagnostics(t, diags)
if snap == nil {
t.Fatalf("snapshot is nil; want non-nil")
}
snapLoader := NewLoaderFromSnapshot(snap)
if loader == nil {
t.Fatalf("loader is nil; want non-nil")
}
config, diags := snapLoader.LoadConfig(fixtureDir)
assertNoDiagnostics(t, diags)
if config == nil {
t.Fatalf("config is nil; want non-nil")
}
if config.Module == nil {
t.Fatalf("config has no root module")
}
if got, want := config.Module.SourceDir, "testdata/already-installed"; got != want {
t.Errorf("wrong root module sourcedir %q; want %q", got, want)
}
if got, want := len(config.Module.ModuleCalls), 2; got != want {
t.Errorf("wrong number of module calls in root module %d; want %d", got, want)
}
childA := config.Children["child_a"]
if childA == nil {
t.Fatalf("child_a config is nil; want non-nil")
}
if childA.Module == nil {
t.Fatalf("child_a config has no module")
}
if got, want := childA.Module.SourceDir, "testdata/already-installed/.terraform/modules/child_a"; got != want {
t.Errorf("wrong child_a sourcedir %q; want %q", got, want)
}
if got, want := len(childA.Module.ModuleCalls), 1; got != want {
t.Errorf("wrong number of module calls in child_a %d; want %d", got, want)
}
}