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package hexaiaction
import (
"context"
"fmt"
"io"
"os"
"path/filepath"
"strings"
"testing"
"time"
"codeberg.org/snonux/hexai/internal/tmux"
)
func TestShouldRunInTmux_Preferences(t *testing.T) {
if shouldRunInTmux(false, true) { t.Fatal("expected false when no-tmux is set") }
if !shouldRunInTmux(true, false) { t.Fatal("expected true when -tmux is set") }
}
func TestShouldRunInTmux_Auto(t *testing.T) {
oldIsTTY := isTTYFn
oldAvail := tmuxAvailableFn
t.Cleanup(func() { isTTYFn = oldIsTTY; tmuxAvailableFn = oldAvail })
isTTYFn = func(_ uintptr) bool { return false }
tmuxAvailableFn = func() bool { return true }
if !shouldRunInTmux(false, false) { t.Fatal("expected true when not TTY and tmux available") }
isTTYFn = func(_ uintptr) bool { return true }
if shouldRunInTmux(false, false) { t.Fatal("expected false when TTY present") }
isTTYFn = func(_ uintptr) bool { return false }
tmuxAvailableFn = func() bool { return false }
if shouldRunInTmux(false, false) { t.Fatal("expected false when tmux unavailable") }
}
func TestPersistStdin_WritesFile(t *testing.T) {
dir := t.TempDir()
path := filepath.Join(dir, "in.txt")
// Point stdin to content
src := filepath.Join(dir, "src.txt")
if err := os.WriteFile(src, []byte("hello world"), 0o600); err != nil { t.Fatalf("write src: %v", err) }
f, _ := os.Open(src)
defer f.Close()
if err := persistStdin(path, f); err != nil { t.Fatalf("persistStdin: %v", err) }
b, _ := os.ReadFile(path)
if string(b) != "hello world" { t.Fatalf("unexpected content %q", string(b)) }
}
func TestEchoThrough(t *testing.T) {
dir := t.TempDir()
in := filepath.Join(dir, "in.txt")
out := filepath.Join(dir, "out.txt")
_ = os.WriteFile(in, []byte("hello"), 0o600)
if err := echoThrough(in, out, os.Stdin, os.Stdout); err != nil { t.Fatalf("echoThrough: %v", err) }
b, _ := os.ReadFile(out)
if string(b) != "hello" { t.Fatalf("unexpected: %q", string(b)) }
}
func TestEchoThrough_StdinStdout(t *testing.T) {
// set stdin
rIn, wIn, _ := os.Pipe()
_, _ = wIn.Write([]byte("PIPE"))
_ = wIn.Close()
// capture stdout
r, w, _ := os.Pipe()
if err := echoThrough("", "", rIn, w); err != nil { t.Fatalf("echoThrough: %v", err) }
_ = w.Close()
data, _ := io.ReadAll(r)
if string(data) != "PIPE" { t.Fatalf("stdout: %q", string(data)) }
}
func TestRunInTmuxParent_Stubbed(t *testing.T) {
dir := t.TempDir()
// set stdin content
r, w, _ := os.Pipe()
_, _ = w.Write([]byte("input"))
_ = w.Close()
// capture stdout
rout, wout, _ := os.Pipe()
oldExec := osExecutableFn
oldSplit := splitRunFn
osExecutableFn = func() (string, error) { return "/bin/hexai-action", nil }
splitRunFn = func(opts tmux.SplitOpts, argv []string) error {
for i := 0; i < len(argv)-1; i++ {
if argv[i] == "-outfile" && i+1 < len(argv) {
_ = os.WriteFile(argv[i+1], []byte("OUT:"+strings.Join(argv, ",")), 0o600)
break
}
}
return nil
}
t.Cleanup(func() { osExecutableFn = oldExec; splitRunFn = oldSplit })
if err := runInTmuxParent(r, wout, "", "v", 33); err != nil { t.Fatalf("runInTmuxParent: %v", err) }
_ = wout.Close()
got, _ := io.ReadAll(rout)
if !strings.HasPrefix(string(got), "OUT:") { t.Fatalf("unexpected stdout: %q", string(got)) }
_ = dir
}
func TestRunInTmuxParent_ExecutableError(t *testing.T) {
old := osExecutableFn
osExecutableFn = func() (string, error) { return "", fmt.Errorf("no exe") }
t.Cleanup(func() { osExecutableFn = old })
r, w, _ := os.Pipe(); _, _ = w.Write([]byte("x")); _ = w.Close()
if err := runInTmuxParent(r, io.Discard, "", "v", 33); err == nil { t.Fatal("expected error from missing executable") }
}
func TestRunInTmuxParent_SplitError(t *testing.T) {
oldExec := osExecutableFn
osExecutableFn = func() (string, error) { return "/bin/hexai-action", nil }
oldSplit := splitRunFn
splitRunFn = func(_ tmux.SplitOpts, _ []string) error { return fmt.Errorf("split failed") }
t.Cleanup(func() { osExecutableFn = oldExec; splitRunFn = oldSplit })
r, w, _ := os.Pipe(); _, _ = w.Write([]byte("x")); _ = w.Close()
if err := runInTmuxParent(r, io.Discard, "", "v", 33); err == nil { t.Fatal("expected split error") }
}
func TestRunChild_StdoutAndOutfile(t *testing.T) {
// Outfile mode
dir := t.TempDir()
in := filepath.Join(dir, "in.txt")
out := filepath.Join(dir, "out.txt")
_ = os.WriteFile(in, []byte("sel"), 0o600)
oldRun := runFn
runFn = func(_ context.Context, _ io.Reader, w io.Writer, _ io.Writer) error { _, _ = io.WriteString(w, "RESULT"); return nil }
t.Cleanup(func(){ runFn = oldRun })
if err := runChild(context.Background(), in, out, io.Discard, io.Discard); err != nil { t.Fatalf("runChild: %v", err) }
b, _ := os.ReadFile(out)
if len(b) == 0 { t.Fatalf("expected some output") }
// Stdout mode
r, w, _ := os.Pipe()
if err := runChild(context.Background(), in, "", w, io.Discard); err != nil { t.Fatalf("runChild: %v", err) }
_ = w.Close(); buf, _ := io.ReadAll(r)
if len(buf) == 0 { t.Fatalf("expected stdout output") }
}
func TestWaitForFile_Timeout(t *testing.T) {
dir := t.TempDir()
p := filepath.Join(dir, "nope")
if err := waitForFile(p, 10*time.Millisecond); err == nil { t.Fatal("expected timeout error") }
}
func TestOpenIO_InfileOutfile(t *testing.T) {
dir := t.TempDir()
in := filepath.Join(dir, "i"); out := filepath.Join(dir, "o")
_ = os.WriteFile(in, []byte("X"), 0o600)
r, w, ci, co, err := openIO(in, out)
if err != nil { t.Fatalf("openIO: %v", err) }
defer ci(); defer co()
if _, err := io.Copy(w, r); err != nil { t.Fatalf("copy: %v", err) }
b, _ := os.ReadFile(out)
if string(b) != "X" { t.Fatalf("got %q", string(b)) }
}
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