refactor(cli): rename operator command to tht

tools/tht/internal/compose/runner_test.go

@@ -0,0 +1,66 @@
+package compose
+
+import (
+	"context"
+	"errors"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"testing"
+)
+
+func TestRunnerPassesEachArgumentWithoutShellSplitting(t *testing.T) {
+	t.Parallel()
+
+	runner := NewRunner(writeExecutable(t, "#!/bin/sh\nprintf '<%s>\\n' \"$@\"\ncat\n"))
+	result, err := runner.Run(context.Background(), []string{"compose", "--project-directory", "/tmp/a project with spaces", "config"}, strings.NewReader("stdin value\n"))
+	if err != nil {
+		t.Fatalf("Run() error = %v", err)
+	}
+	want := "<compose>\n<--project-directory>\n</tmp/a project with spaces>\n<config>\nstdin value\n"
+	if result.Stdout != want {
+		t.Errorf("stdout = %q, want %q", result.Stdout, want)
+	}
+	if result.ExitCode != 0 {
+		t.Errorf("ExitCode = %d, want 0", result.ExitCode)
+	}
+}
+
+func TestRunnerReturnsTheChildExitCode(t *testing.T) {
+	t.Parallel()
+
+	runner := NewRunner(writeExecutable(t, "#!/bin/sh\necho unavailable >&2\nexit 42\n"))
+	result, err := runner.Run(context.Background(), []string{"compose", "ps"}, nil)
+	if err == nil {
+		t.Fatal("Run() error = nil, want child exit error")
+	}
+	if result.ExitCode != 42 {
+		t.Errorf("ExitCode = %d, want 42", result.ExitCode)
+	}
+	if result.Stderr != "unavailable\n" {
+		t.Errorf("stderr = %q, want unavailable output", result.Stderr)
+	}
+}
+
+func TestRunnerReportsMissingDocker(t *testing.T) {
+	t.Parallel()
+
+	runner := NewRunner(filepath.Join(t.TempDir(), "docker-does-not-exist"))
+	result, err := runner.Run(context.Background(), []string{"compose", "version"}, nil)
+	if !errors.Is(err, exec.ErrNotFound) {
+		t.Fatalf("Run() error = %v, want exec.ErrNotFound", err)
+	}
+	if result.ExitCode != 127 {
+		t.Errorf("ExitCode = %d, want 127", result.ExitCode)
+	}
+}
+
+func writeExecutable(t *testing.T, contents string) string {
+	t.Helper()
+	path := filepath.Join(t.TempDir(), "fake-docker")
+	if err := os.WriteFile(path, []byte(contents), 0o700); err != nil {
+		t.Fatal(err)
+	}
+	return path
+}