terraform/configs/configload/loader_snapshot_test.go

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)
}
}