terraform/internal/copydir/copy_dir_test.go

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package copydir
import (
"io/ioutil"
"os"
"path/filepath"
"testing"
)
// TestCopyDir_symlinks sets up a directory with two submodules,
// one being a symlink to the other
//
// The resultant file structure is as follows:
// ├── modules
// │   ├── symlink-module -> test-module
// │   └── test-module
// │   └── main.tf
// └── target
// ├── symlink-module -> test-module
// └── test-module
// └── main.tf
func TestCopyDir_symlinks(t *testing.T) {
tmpdir, err := ioutil.TempDir("", "copy-dir-test")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmpdir)
moduleDir := filepath.Join(tmpdir, "modules")
err = os.Mkdir(moduleDir, os.ModePerm)
if err != nil {
t.Fatal(err)
}
subModuleDir := filepath.Join(moduleDir, "test-module")
err = os.Mkdir(subModuleDir, os.ModePerm)
if err != nil {
t.Fatal(err)
}
err = ioutil.WriteFile(filepath.Join(subModuleDir, "main.tf"), []byte("hello"), 0644)
if err != nil {
t.Fatal(err)
}
err = os.Symlink("test-module", filepath.Join(moduleDir, "symlink-module"))
if err != nil {
t.Fatal(err)
}
targetDir := filepath.Join(tmpdir, "target")
os.Mkdir(targetDir, os.ModePerm)
err = CopyDir(targetDir, moduleDir)
if err != nil {
t.Fatal(err)
}
if _, err = os.Lstat(filepath.Join(targetDir, "test-module", "main.tf")); os.IsNotExist(err) {
t.Fatal("target test-module/main.tf was not created")
}
if _, err = os.Lstat(filepath.Join(targetDir, "symlink-module", "main.tf")); os.IsNotExist(err) {
t.Fatal("target symlink-module/main.tf was not created")
}
}
func TestCopyDir_symlink_file(t *testing.T) {
tmpdir, err := ioutil.TempDir("", "copy-file-test")
if err != nil {
t.Fatal(err)
}
defer os.RemoveAll(tmpdir)
moduleDir := filepath.Join(tmpdir, "modules")
err = os.Mkdir(moduleDir, os.ModePerm)
if err != nil {
t.Fatal(err)
}
err = ioutil.WriteFile(filepath.Join(moduleDir, "main.tf"), []byte("hello"), 0644)
if err != nil {
t.Fatal(err)
}
err = os.Symlink("main.tf", filepath.Join(moduleDir, "symlink.tf"))
if err != nil {
t.Fatal(err)
}
targetDir := filepath.Join(tmpdir, "target")
os.Mkdir(targetDir, os.ModePerm)
err = CopyDir(targetDir, moduleDir)
if err != nil {
t.Fatal(err)
}
if _, err = os.Lstat(filepath.Join(targetDir, "main.tf")); os.IsNotExist(err) {
t.Fatal("target/main.tf was not created")
}
if _, err = os.Lstat(filepath.Join(targetDir, "symlink.tf")); os.IsNotExist(err) {
t.Fatal("target/symlink.tf was not created")
}
}