package suite

import (
	"os"
	"path/filepath"
	"testing"
)

// readRepoFile reads a path relative to the repository root.
//
// Tests run from their own package directory, so fixture paths are resolved
// against the module root rather than the working directory. Hard-coding
// "../.." would break the moment the suite moved.
func readRepoFile(t *testing.T, rel string) []byte {
	t.Helper()

	dir, err := os.Getwd()
	if err != nil {
		t.Fatal(err)
	}
	for {
		if _, err := os.Stat(filepath.Join(dir, "go.mod")); err == nil {
			raw, err := os.ReadFile(filepath.Join(dir, rel))
			if err != nil {
				t.Fatalf("read %s: %v", rel, err)
			}
			return raw
		}
		parent := filepath.Dir(dir)
		if parent == dir {
			t.Fatalf("could not find the repository root above %s", dir)
		}
		dir = parent
	}
}