"""commands/program_run.py 单元测试 — cmd_run_program。

运行: python tests/unit/test_program_run.py
"""
from __future__ import annotations

import argparse
import os
import sys
import unittest
from unittest.mock import MagicMock, patch

sys.path.insert(0, os.path.join(os.path.dirname(os.path.abspath(__file__)), "..", "..", "assets"))


def _args(**kwargs):
    defaults = {"name": "zprogram"}
    defaults.update(kwargs)
    return argparse.Namespace(**defaults)


class TestCmdRunProgram(unittest.TestCase):
    """cmd_run_program 远程执行 ABAP 程序。"""

    def test_output_present_is_printed(self):
        """程序返回非空输出时打印输出内容。"""
        from sapcli.commands.program_run import cmd_run_program

        client = MagicMock()
        client.run_program.return_value = "  Hello ABAP  \n"

        with patch("builtins.print") as mock_print:
            cmd_run_program(_args(name="zsetup"), client)

        # 程序名应大写后传给 client
        client.run_program.assert_called_once_with("ZSETUP")
        printed = " ".join(str(c) for c, _ in mock_print.call_args_list)
        self.assertIn("Hello ABAP", printed)

    def test_output_trailing_newlines_rstripped(self):
        """输出尾随空白被 rstrip 去掉。"""
        from sapcli.commands.program_run import cmd_run_program

        client = MagicMock()
        client.run_program.return_value = "line1\nline2\n\n\n"

        with patch("builtins.print") as mock_print:
            cmd_run_program(_args(), client)

        printed = " ".join(str(c) for c, _ in mock_print.call_args_list)
        self.assertIn("line2", printed)

    def test_empty_output_prints_no_output(self):
        """程序返回纯空白输出时打印「无输出」。"""
        from sapcli.commands.program_run import cmd_run_program

        client = MagicMock()
        client.run_program.return_value = "   \n  "

        with patch("builtins.print") as mock_print:
            cmd_run_program(_args(), client)

        printed = " ".join(str(c) for c, _ in mock_print.call_args_list)
        self.assertIn("无输出", printed)

    def test_truly_empty_string_prints_no_output(self):
        """程序返回空字符串时打印「无输出」。"""
        from sapcli.commands.program_run import cmd_run_program

        client = MagicMock()
        client.run_program.return_value = ""

        with patch("builtins.print") as mock_print:
            cmd_run_program(_args(), client)

        printed = " ".join(str(c) for c, _ in mock_print.call_args_list)
        self.assertIn("无输出", printed)

    def test_name_uppercased_before_call(self):
        """小写程序名被 .upper() 后传给 client。"""
        from sapcli.commands.program_run import cmd_run_program

        client = MagicMock()
        client.run_program.return_value = ""

        cmd_run_program(_args(name="ztest_prog"), client)

        client.run_program.assert_called_once_with("ZTEST_PROG")

    def test_info_message_printed(self):
        """执行前打印「远程执行程序」提示。"""
        from sapcli.commands.program_run import cmd_run_program

        client = MagicMock()
        client.run_program.return_value = "ok"

        with patch("builtins.print") as mock_print:
            cmd_run_program(_args(name="zprog"), client)

        printed = " ".join(str(c) for c, _ in mock_print.call_args_list)
        self.assertIn("ZPROG", printed)


if __name__ == "__main__":
    unittest.main(verbosity=2)