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432 lines (351 loc) · 9.33 KB
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package module
import (
"fmt"
"os"
"reflect"
"strings"
"testing"
"github.com/hashicorp/go-getter"
"github.com/hashicorp/terraform/config"
"github.com/hashicorp/terraform/helper/copy"
)
func TestTreeChild(t *testing.T) {
var nilTree *Tree
if nilTree.Child(nil) != nil {
t.Fatal("child should be nil")
}
storage := testStorage(t)
tree := NewTree("", testConfig(t, "child"))
if err := tree.Load(storage, GetModeGet); err != nil {
t.Fatalf("err: %s", err)
}
// Should be able to get the root child
if c := tree.Child([]string{}); c == nil {
t.Fatal("should not be nil")
} else if c.Name() != "root" {
t.Fatalf("bad: %#v", c.Name())
} else if !reflect.DeepEqual(c.Path(), []string(nil)) {
t.Fatalf("bad: %#v", c.Path())
}
// Should be able to get the root child
if c := tree.Child(nil); c == nil {
t.Fatal("should not be nil")
} else if c.Name() != "root" {
t.Fatalf("bad: %#v", c.Name())
} else if !reflect.DeepEqual(c.Path(), []string(nil)) {
t.Fatalf("bad: %#v", c.Path())
}
// Should be able to get the foo child
if c := tree.Child([]string{"foo"}); c == nil {
t.Fatal("should not be nil")
} else if c.Name() != "foo" {
t.Fatalf("bad: %#v", c.Name())
} else if !reflect.DeepEqual(c.Path(), []string{"foo"}) {
t.Fatalf("bad: %#v", c.Path())
}
// Should be able to get the nested child
if c := tree.Child([]string{"foo", "bar"}); c == nil {
t.Fatal("should not be nil")
} else if c.Name() != "bar" {
t.Fatalf("bad: %#v", c.Name())
} else if !reflect.DeepEqual(c.Path(), []string{"foo", "bar"}) {
t.Fatalf("bad: %#v", c.Path())
}
}
func TestTreeLoad(t *testing.T) {
storage := testStorage(t)
tree := NewTree("", testConfig(t, "basic"))
if tree.Loaded() {
t.Fatal("should not be loaded")
}
// This should error because we haven't gotten things yet
if err := tree.Load(storage, GetModeNone); err == nil {
t.Fatal("should error")
}
if tree.Loaded() {
t.Fatal("should not be loaded")
}
// This should get things
if err := tree.Load(storage, GetModeGet); err != nil {
t.Fatalf("err: %s", err)
}
if !tree.Loaded() {
t.Fatal("should be loaded")
}
// This should no longer error
if err := tree.Load(storage, GetModeNone); err != nil {
t.Fatalf("err: %s", err)
}
actual := strings.TrimSpace(tree.String())
expected := strings.TrimSpace(treeLoadStr)
if actual != expected {
t.Fatalf("bad: \n\n%s", actual)
}
}
func TestTreeLoad_duplicate(t *testing.T) {
storage := testStorage(t)
tree := NewTree("", testConfig(t, "dup"))
if tree.Loaded() {
t.Fatal("should not be loaded")
}
// This should get things
if err := tree.Load(storage, GetModeGet); err == nil {
t.Fatalf("should error")
}
}
func TestTreeLoad_copyable(t *testing.T) {
dir := tempDir(t)
storage := &getter.FolderStorage{StorageDir: dir}
cfg := testConfig(t, "basic")
tree := NewTree("", cfg)
// This should get things
if err := tree.Load(storage, GetModeGet); err != nil {
t.Fatalf("err: %s", err)
}
if !tree.Loaded() {
t.Fatal("should be loaded")
}
// This should no longer error
if err := tree.Load(storage, GetModeNone); err != nil {
t.Fatalf("err: %s", err)
}
// Now we copy the directory, this COPIES symlink values, and
// doesn't create symlinks themselves. That is important.
dir2 := tempDir(t)
os.RemoveAll(dir2)
defer os.RemoveAll(dir2)
if err := copy.CopyDir(dir, dir2); err != nil {
t.Fatalf("err: %s", err)
}
// Now copy the configuration
cfgDir := tempDir(t)
os.RemoveAll(cfgDir)
defer os.RemoveAll(cfgDir)
if err := copy.CopyDir(cfg.Dir, cfgDir); err != nil {
t.Fatalf("err: %s", err)
}
{
cfg, err := config.LoadDir(cfgDir)
if err != nil {
t.Fatalf("err: %s", err)
}
tree := NewTree("", cfg)
storage := &getter.FolderStorage{StorageDir: dir2}
// This should not error since we already got it!
if err := tree.Load(storage, GetModeNone); err != nil {
t.Fatalf("err: %s", err)
}
if !tree.Loaded() {
t.Fatal("should be loaded")
}
}
}
func TestTreeLoad_parentRef(t *testing.T) {
storage := testStorage(t)
tree := NewTree("", testConfig(t, "basic-parent"))
if tree.Loaded() {
t.Fatal("should not be loaded")
}
// This should error because we haven't gotten things yet
if err := tree.Load(storage, GetModeNone); err == nil {
t.Fatal("should error")
}
if tree.Loaded() {
t.Fatal("should not be loaded")
}
// This should get things
if err := tree.Load(storage, GetModeGet); err != nil {
t.Fatalf("err: %s", err)
}
if !tree.Loaded() {
t.Fatal("should be loaded")
}
// This should no longer error
if err := tree.Load(storage, GetModeNone); err != nil {
t.Fatalf("err: %s", err)
}
actual := strings.TrimSpace(tree.String())
expected := strings.TrimSpace(treeLoadParentStr)
if actual != expected {
t.Fatalf("bad: \n\n%s", actual)
}
}
func TestTreeLoad_subdir(t *testing.T) {
storage := testStorage(t)
tree := NewTree("", testConfig(t, "basic-subdir"))
if tree.Loaded() {
t.Fatal("should not be loaded")
}
// This should error because we haven't gotten things yet
if err := tree.Load(storage, GetModeNone); err == nil {
t.Fatal("should error")
}
if tree.Loaded() {
t.Fatal("should not be loaded")
}
// This should get things
if err := tree.Load(storage, GetModeGet); err != nil {
t.Fatalf("err: %s", err)
}
if !tree.Loaded() {
t.Fatal("should be loaded")
}
// This should no longer error
if err := tree.Load(storage, GetModeNone); err != nil {
t.Fatalf("err: %s", err)
}
actual := strings.TrimSpace(tree.String())
expected := strings.TrimSpace(treeLoadSubdirStr)
if actual != expected {
t.Fatalf("bad: \n\n%s", actual)
}
}
func TestTreeModules(t *testing.T) {
tree := NewTree("", testConfig(t, "basic"))
actual := tree.Modules()
expected := []*Module{
&Module{Name: "foo", Source: "./foo"},
}
if !reflect.DeepEqual(actual, expected) {
t.Fatalf("bad: %#v", actual)
}
}
func TestTreeName(t *testing.T) {
tree := NewTree("", testConfig(t, "basic"))
actual := tree.Name()
if actual != RootName {
t.Fatalf("bad: %#v", actual)
}
}
// This is a table-driven test for tree validation. This is the preferred
// way to test Validate. Non table-driven tests exist historically but
// that style shouldn't be done anymore.
func TestTreeValidate_table(t *testing.T) {
cases := []struct {
Name string
Fixture string
Err string
}{
{
"provider alias in child",
"validate-alias-good",
"",
},
{
"undefined provider alias in child",
"validate-alias-bad",
"alias must be defined",
},
{
"root module named root",
"validate-module-root",
"cannot contain module",
},
{
"grandchild module named root",
"validate-module-root-grandchild",
"",
},
}
for i, tc := range cases {
t.Run(fmt.Sprintf("%d-%s", i, tc.Name), func(t *testing.T) {
tree := NewTree("", testConfig(t, tc.Fixture))
if err := tree.Load(testStorage(t), GetModeGet); err != nil {
t.Fatalf("err: %s", err)
}
err := tree.Validate()
if (err != nil) != (tc.Err != "") {
t.Fatalf("err: %s", err)
}
if err == nil {
return
}
if !strings.Contains(err.Error(), tc.Err) {
t.Fatalf("err should contain %q: %s", tc.Err, err)
}
})
}
}
func TestTreeValidate_badChild(t *testing.T) {
tree := NewTree("", testConfig(t, "validate-child-bad"))
if err := tree.Load(testStorage(t), GetModeGet); err != nil {
t.Fatalf("err: %s", err)
}
if err := tree.Validate(); err == nil {
t.Fatal("should error")
}
}
func TestTreeValidate_badChildOutput(t *testing.T) {
tree := NewTree("", testConfig(t, "validate-bad-output"))
if err := tree.Load(testStorage(t), GetModeGet); err != nil {
t.Fatalf("err: %s", err)
}
if err := tree.Validate(); err == nil {
t.Fatal("should error")
}
}
func TestTreeValidate_badChildOutputToModule(t *testing.T) {
tree := NewTree("", testConfig(t, "validate-bad-output-to-module"))
if err := tree.Load(testStorage(t), GetModeGet); err != nil {
t.Fatalf("err: %s", err)
}
if err := tree.Validate(); err == nil {
t.Fatal("should error")
}
}
func TestTreeValidate_badChildVar(t *testing.T) {
tree := NewTree("", testConfig(t, "validate-bad-var"))
if err := tree.Load(testStorage(t), GetModeGet); err != nil {
t.Fatalf("err: %s", err)
}
if err := tree.Validate(); err == nil {
t.Fatal("should error")
}
}
func TestTreeValidate_badRoot(t *testing.T) {
tree := NewTree("", testConfig(t, "validate-root-bad"))
if err := tree.Load(testStorage(t), GetModeGet); err != nil {
t.Fatalf("err: %s", err)
}
if err := tree.Validate(); err == nil {
t.Fatal("should error")
}
}
func TestTreeValidate_good(t *testing.T) {
tree := NewTree("", testConfig(t, "validate-child-good"))
if err := tree.Load(testStorage(t), GetModeGet); err != nil {
t.Fatalf("err: %s", err)
}
if err := tree.Validate(); err != nil {
t.Fatalf("err: %s", err)
}
}
func TestTreeValidate_notLoaded(t *testing.T) {
tree := NewTree("", testConfig(t, "basic"))
if err := tree.Validate(); err == nil {
t.Fatal("should error")
}
}
func TestTreeValidate_requiredChildVar(t *testing.T) {
tree := NewTree("", testConfig(t, "validate-required-var"))
if err := tree.Load(testStorage(t), GetModeGet); err != nil {
t.Fatalf("err: %s", err)
}
if err := tree.Validate(); err == nil {
t.Fatal("should error")
}
}
const treeLoadStr = `
root
foo (path: foo)
`
const treeLoadParentStr = `
root
a (path: a)
b (path: a, b)
`
const treeLoadSubdirStr = `
root
foo (path: foo)
bar (path: foo, bar)
`