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|
package main
import (
"bytes"
"errors"
"flag"
"path/filepath"
"slices"
"strings"
"testing"
)
func TestDecryptFile_Force(t *testing.T) {
t.Parallel()
for _, tc := range []struct {
desc string
force bool
wantErr bool
}{{
desc: "OutputExists",
force: false,
wantErr: true,
}, {
desc: "Force",
force: true,
wantErr: false,
}} {
t.Run(tc.desc, func(t *testing.T) {
t.Parallel()
const password = "asdf"
fileName := filepath.Join(t.TempDir(), "file")
mustWriteFile(t, fileName, []byte("test file content"))
if err := testEncryptOptions.encryptFile(fileName, password); err != nil {
t.Fatalf("Failed to encrypt file: %s", err)
}
decOpts := testDecryptOptions
decOpts.force = tc.force
err := decOpts.decryptFile(fileName+".enc", password)
if gotErr := err != nil; gotErr != tc.wantErr {
t.Errorf("decryptFile(force=%t) returned returned error %v when output file exists, want error? %t", tc.force, err, tc.wantErr)
}
})
}
}
func TestDecrypt_BadFileFormat(t *testing.T) {
t.Parallel()
for _, tc := range []struct {
desc string
fileContent []byte
}{{
desc: "Empty",
fileContent: nil,
}, {
desc: "Short",
fileContent: []byte{0x80},
}, {
desc: "NoContent",
fileContent: bytes.Repeat([]byte{0}, saltSize),
}, {
desc: "BadContent",
fileContent: slices.Concat(
bytes.Repeat([]byte{0}, saltSize),
[]byte("bad content")),
}} {
t.Run(tc.desc, func(t *testing.T) {
t.Parallel()
fileName := filepath.Join(t.TempDir(), "file")
mustWriteFile(t, fileName, tc.fileContent)
err := testDecryptOptions.decryptFile(fileName, "asdf")
if err == nil {
t.Errorf("DecryptFile succeeded for incorrect file format, want error")
}
})
}
}
func TestDecryptFile_WeirdName(t *testing.T) {
t.Parallel()
const password = "asdf"
fileContent := []byte("file content")
fileName := filepath.Join(t.TempDir(), "file")
mustWriteFile(t, fileName, fileContent)
if err := testEncryptOptions.encryptFile(fileName, password); err != nil {
t.Fatalf("EncryptFile failed: %s", err)
}
mustRename(t, fileName+".enc", fileName+".encrypted")
if err := testDecryptOptions.decryptFile(fileName+".encrypted", password); err != nil {
t.Fatalf("DecryptFile failed: %s", err)
}
gotContents := mustReadFile(t, fileName+".encrypted.dec")
if !bytes.Equal(gotContents, fileContent) {
t.Errorf("contents differ")
}
}
func TestDecryptFile_NotFound(t *testing.T) {
t.Parallel()
err := testDecryptOptions.decryptFile("my-nonexistent-file.txt", "asdf")
if err == nil {
t.Fatal("decryptFile succeeded for nonexistent file, want error")
}
}
func TestDecryptFile_NoPermission(t *testing.T) {
t.Parallel()
fileName := filepath.Join(t.TempDir(), "file.enc")
mustWriteFile(t, fileName, []byte("test file content"))
mustWriteFile(t, strings.TrimSuffix(fileName, ".enc"), nil)
mustChmod(t, strings.TrimSuffix(fileName, ".enc"), 0400)
opts := testDecryptOptions
opts.force = true
err := opts.decryptFile(fileName, "asdf")
if err == nil {
t.Fatal("decryptFile succeeded for unwritable file, want error")
}
}
func TestDecryptOptions_RegisterFlags(t *testing.T) {
t.Parallel()
var o decryptOptions
fs := flag.NewFlagSet("test", flag.ContinueOnError)
o.registerFlags(fs)
const cmd = "-p asdf -f"
fs.Parse(strings.Split(cmd, " "))
want := decryptFlags{
password: "asdf",
force: true,
}
if o.decryptFlags != want {
t.Errorf("Command line %q parsed incorrect decryptOptions, got %+v, want %+v", cmd, o, want)
}
}
func TestDecryptOptions_Run(t *testing.T) {
t.Parallel()
const password = "asdf"
fileContent := []byte("test file content")
fileName := filepath.Join(t.TempDir(), "file")
mustWriteFile(t, fileName, fileContent)
if err := testEncryptOptions.encryptFile(fileName, password); err != nil {
t.Errorf("EncryptFile failed: %s", err)
}
mustRemove(t, fileName)
opts := testDecryptOptions
opts.password = password
err := opts.run(fileName + ".enc")
if err != nil {
t.Errorf("dec failed: %s", err)
}
gotFileContents := mustReadFile(t, fileName)
if !bytes.Equal(gotFileContents, fileContent) {
t.Errorf("run returned incorrect contents %q, want %q", gotFileContents, fileContent)
}
}
func TestDecryptOptions_Run_UsageError(t *testing.T) {
t.Parallel()
err := testDecryptOptions.run()
if err == nil {
t.Errorf("Run without -p when reading from stdin, want error")
}
}
func TestDecryptOptions_Run_NotFound(t *testing.T) {
t.Parallel()
opts := testDecryptOptions
opts.password = "asdf"
err := opts.run("my-nonexistent-file-name.txt")
if err == nil {
t.Errorf("run succeeded with nonexistent file, want error")
}
}
func TestDecryptOptions_Run_Stdin(t *testing.T) {
t.Parallel()
const password = "asdf"
content := []byte("test contents")
encrypted := new(bytes.Buffer)
if err := testEncryptOptions.encrypt(encrypted, bytes.NewReader(content), password); err != nil {
t.Fatalf("Failed to encrypt: %s", err)
}
gotContentBuf := new(bytes.Buffer)
opts := testDecryptOptions
opts.password = password
opts.stdin = bytes.NewReader(encrypted.Bytes())
opts.stdout = gotContentBuf
if err := opts.run(); err != nil {
t.Fatalf("run failed: %s", err)
}
gotContent := gotContentBuf.Bytes()
if !bytes.Equal(gotContent, content) {
t.Errorf("dec returned incorrect contents %q, want %q", gotContent, content)
}
}
func TestDecryptOptions_Run_ReadPassword(t *testing.T) {
t.Parallel()
for _, tc := range []struct {
desc string
err error
wantErr bool
}{{
desc: "Ok",
}, {
desc: "Err",
err: errors.New("test error"),
wantErr: true,
}} {
t.Run(tc.desc, func(t *testing.T) {
t.Parallel()
const password = "asdf"
fileName := filepath.Join(t.TempDir(), "file")
mustWriteFile(t, fileName, []byte("test file content"))
if err := testEncryptOptions.encryptFile(fileName, password); err != nil {
t.Errorf("EncryptFile failed: %s", err)
}
mustRemove(t, fileName)
opts := testDecryptOptions
opts.passwordIn = func() (string, error) {
return password, tc.err
}
err := opts.run(fileName + ".enc")
if gotErr := err != nil; gotErr != tc.wantErr {
t.Errorf("decryptOptions.run returned error %v reading password from stdin, want error? %t", err, tc.wantErr)
}
})
}
}
|
