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package main
import (
"bytes"
"context"
"flag"
"os"
"path/filepath"
"testing"
"github.com/google/subcommands"
)
func init() {
argon2Memory = 1
}
func mustWriteFile(t *testing.T, path string, content []byte) {
t.Helper()
if err := os.WriteFile(path, content, 0600); err != nil {
t.Fatalf("Failed to write test file: %s", err)
}
}
func mustReadFile(t *testing.T, path string) []byte {
t.Helper()
content, err := os.ReadFile(path)
if err != nil {
t.Fatalf("Failed to read file: %s", err)
}
return content
}
func mustRename(t *testing.T, src, dst string) {
t.Helper()
if err := os.Rename(src, dst); err != nil {
t.Fatalf("Failed to rename: %s", err)
}
}
func mustRemove(t *testing.T, path string) {
t.Helper()
if err := os.Remove(path); err != nil {
t.Fatalf("Failed to remove file: %s", err)
}
}
func mustChmod(t *testing.T, path string, mod os.FileMode) {
t.Helper()
if err := os.Chmod(path, mod); err != nil {
t.Fatalf("Failed to chmod: %s", err)
}
}
func TestEncryptDecrypt(t *testing.T) {
t.Parallel()
buf := make([]byte, 12*1024*1024)
for i := range buf {
buf[i] = byte(i)
}
fileName := filepath.Join(t.TempDir(), "file")
mustWriteFile(t, fileName, buf)
const password = "karp cache tidal mars fed rajah uses graze pobox flew"
if err := (&encCmd{}).encryptFile(fileName, password); err != nil {
t.Fatalf("EncryptFile failed: %s", err)
}
mustRemove(t, fileName)
if err := (&decCmd{}).decryptFile(fileName+".enc", password); err != nil {
t.Fatalf("DecryptFile failed: %s", err)
}
gotContents := mustReadFile(t, fileName)
if !bytes.Equal(gotContents, buf) {
t.Errorf("contents differ")
}
}
func run(ctx context.Context, t *testing.T, cmd ...string) subcommands.ExitStatus {
t.Helper()
fs := flag.NewFlagSet("test", flag.ContinueOnError)
commander := subcommands.NewCommander(fs, "test")
registerCommands(commander, nil, nil, nil, nil)
if err := fs.Parse(cmd); err != nil {
t.Fatalf("Failed to parse command %q: %s", cmd, err)
}
return commander.Execute(ctx)
}
func TestCommander(t *testing.T) {
t.Parallel()
ctx := t.Context()
fileName := filepath.Join(t.TempDir(), "file.txt")
const fileContent = "test file content"
mustWriteFile(t, fileName, []byte(fileContent))
const password = "asdf"
if st := run(ctx, t, "enc", "-p="+password, fileName); st != subcommands.ExitSuccess {
t.Fatalf("enc failed: status %d", st)
}
mustRemove(t, fileName)
if st := run(ctx, t, "dec", "-p="+password, fileName+".enc"); st != subcommands.ExitSuccess {
t.Fatalf("dec failed: status %d", st)
}
gotContents := mustReadFile(t, fileName)
if !bytes.Equal(gotContents, []byte(fileContent)) {
t.Errorf("dec returned invalid content, got %q, want %q", gotContents, fileContent)
}
}
func TestCommander_Errors(t *testing.T) {
t.Parallel()
for _, tc := range []struct {
desc string
cmd []string
wantStatus subcommands.ExitStatus
}{{
desc: "EncUsageError",
cmd: []string{"enc", "-g", "-p=asdf", "file.txt"},
wantStatus: subcommands.ExitUsageError,
}, {
desc: "EncNoSuchFile",
cmd: []string{"enc", "-p=asdf", "nonexistent-file.txt"},
wantStatus: subcommands.ExitFailure,
}, {
desc: "DecUsageError",
cmd: []string{"dec"},
wantStatus: subcommands.ExitUsageError,
}, {
desc: "DecNoSuchFile",
cmd: []string{"dec", "-p=asdf", "nonexistent-file.txt.enc"},
wantStatus: subcommands.ExitFailure,
}} {
t.Run(tc.desc, func(t *testing.T) {
t.Parallel()
ctx := t.Context()
st := run(ctx, t, tc.cmd...)
if st != tc.wantStatus {
t.Errorf("command %q returned status %d, want %d", tc.cmd, st, tc.wantStatus)
}
})
}
}
func TestUsage(t *testing.T) {
t.Parallel()
ctx := t.Context()
run(ctx, t, "help")
run(ctx, t, "enc", "-h")
run(ctx, t, "dec", "-h")
}
|
