fix(cli): consume nonexistent --black-box dir; keep white report on empty black-box

cobol_testgen/__init__.py

@@ -1394,8 +1394,10 @@ def _inject_c01_coverage_records(records, fields, base_assignments):
 def _extract_black_box_args(args: list) -> tuple[bool, str | None]:
     """就地解析 --black-box / --no-black-box，返回 (do_black_box, black_box_arg)。
 
-    `--black-box <dir>`：仅当后一个 token 是「已存在的目录」且非 COBOL 源码后缀时
-    才消费为目录；否则视为裸 `--black-box`（自动探测 <outdir>/<PGM>/black_box）。
+    `--black-box <dir>`：后一个 token 非 `--` 开头且不是 COBOL 源码后缀（.cbl/.cob/.cpy）
+    时消费为目录；否则视为裸 `--black-box`（自动探测 <outdir>/<PGM>/black_box）。
+    这样既支持 `--black-box <source.cbl> <outdir>` 的自动探测形式，也不会把
+    尚不存在（或拼写错误）的目录 token 漏给位置参数分类逻辑而误判为 outdir。
     """
     do_black_box = False
     black_box_arg = None
@@ -1404,6 +1406,7 @@ def _extract_black_box_args(args: list) -> tuple[bool, str | None]:
         a = args[i]
         if a == '--no-black-box':
             do_black_box = False
+            black_box_arg = None
             args.pop(i)
             continue
         if a == '--black-box':
@@ -1411,7 +1414,6 @@ def _extract_black_box_args(args: list) -> tuple[bool, str | None]:
             if i + 1 < len(args):
                 nxt = args[i + 1]
                 if (not nxt.startswith('--')
-                        and Path(nxt).is_dir()
                         and Path(nxt).suffix.upper() not in ('.CBL', '.COB', '.CPY')):
                     black_box_arg = nxt
                     args.pop(i + 1)
@@ -1927,6 +1929,13 @@ def main():
             bb_groups = load_black_box_groups(bb_dir, fd_fields, select_info, fields_dict)
             if not bb_groups:
                 logger.warning(f"  --black-box: 未在 {bb_dir} 找到可用黑盒数据，跳过")
+                if white_java_reports:
+                    try:
+                        _write_java_test_report(str(prog_outdir), filepath.stem,
+                                                list(group_results),
+                                                list(white_java_reports))
+                    except Exception as e:  # noqa: BLE001
+                        logger.warning(f"  测试报告生成失败: {e}")
             else:
                 _bb_temp = temp_dir or str(prog_outdir / '.gcov_cache')
                 bb_results, bb_java_reports = run_external_groups(
@@ -1940,8 +1949,11 @@ def main():
                 all_results = list(group_results) + list(bb_results)
                 all_reports = list(white_java_reports) + list(bb_java_reports)
                 if all_reports:
-                    _write_java_test_report(str(prog_outdir), filepath.stem,
-                                            all_results, all_reports)
+                    try:
+                        _write_java_test_report(str(prog_outdir), filepath.stem,
+                                                all_results, all_reports)
+                    except Exception as e:  # noqa: BLE001
+                        logger.warning(f"  测试报告生成失败: {e}")
 
         if do_run and proc_div and _HAVE_RUNNER:
             run_and_compare(

tests/cobol_testgen/test_cli_blackbox.py

@@ -48,3 +48,19 @@ def test_no_flags_leaves_args_untouched():
     assert do is False
     assert arg is None
     assert args == ["src.cbl", "out"]
+
+
+def test_black_box_nonexistent_dir_consumed():
+    args = ["--black-box", "no/such/dir", "src.cbl", "out"]
+    do, arg = _extract_black_box_args(args)
+    assert do is True
+    assert arg == "no/such/dir"
+    assert args == ["src.cbl", "out"]
+
+
+def test_no_black_box_resets_arg():
+    args = ["--black-box", "bbdir", "--no-black-box", "src.cbl"]
+    do, arg = _extract_black_box_args(args)
+    assert do is False
+    assert arg is None
+    assert args == ["src.cbl"]