pre cw with probe and a bunch script to read game behavior

internal/gameserver/test_helpers_test.go

@@ -0,0 +1,36 @@
+package gameserver
+
+import (
+	"fmt"
+	"os"
+	"path/filepath"
+	"runtime"
+	"testing"
+)
+
+func TestMain(m *testing.M) {
+	_, source, _, ok := runtime.Caller(0)
+	if !ok {
+		fmt.Fprintln(os.Stderr, "cannot locate gameserver test helper source")
+		os.Exit(2)
+	}
+	root := filepath.Clean(filepath.Join(filepath.Dir(source), "..", ".."))
+	if err := os.Chdir(root); err != nil {
+		fmt.Fprintf(os.Stderr, "cannot change to repository root %s: %v\n", root, err)
+		os.Exit(2)
+	}
+	os.Exit(m.Run())
+}
+
+func chdirRepositoryRoot(t *testing.T) {
+	t.Helper()
+	_, source, _, ok := runtime.Caller(0)
+	if !ok {
+		t.Fatal("cannot locate gameserver test helper source")
+	}
+	root := filepath.Clean(filepath.Join(filepath.Dir(source), "..", ".."))
+	if _, err := os.Stat(filepath.Join(root, "go.mod")); err != nil {
+		t.Fatalf("cannot locate repository root from %s: %v", source, err)
+	}
+	t.Chdir(root)
+}