"""commands/unit_test.py 单元测试 — cmd_unit_test + _parse_duration。

运行: python tests/unit/test_unit_test.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 = {"type": "class", "name": "ZCL_TEST"}
    defaults.update(kwargs)
    return argparse.Namespace(**defaults)


# ═══════════════════════════════════════════
#  _parse_duration
# ═══════════════════════════════════════════

class TestParseDuration(unittest.TestCase):
    """_parse_duration 安全解析方法耗时。"""

    def test_valid_float_string(self):
        from sapcli.commands.unit_test import _parse_duration
        self.assertEqual(_parse_duration("1.5"), 1.5)
        self.assertEqual(_parse_duration("0.25"), 0.25)
        self.assertEqual(_parse_duration("3"), 3.0)

    def test_invalid_string_returns_zero(self):
        from sapcli.commands.unit_test import _parse_duration
        self.assertEqual(_parse_duration("abc"), 0.0)

    def test_none_returns_zero(self):
        from sapcli.commands.unit_test import _parse_duration
        self.assertEqual(_parse_duration(None), 0.0)

    def test_empty_string_returns_zero(self):
        from sapcli.commands.unit_test import _parse_duration
        self.assertEqual(_parse_duration(""), 0.0)

    def test_zero_string(self):
        from sapcli.commands.unit_test import _parse_duration
        self.assertEqual(_parse_duration("0"), 0.0)


# ═══════════════════════════════════════════
#  cmd_unit_test
# ═══════════════════════════════════════════

class TestCmdUnitTest(unittest.TestCase):
    """cmd_unit_test 执行 ABAP Unit 测试并汇总结果。"""

    def test_api_error_prints_failure_and_returns(self):
        """run_unit_test 抛异常时打印失败提示并返回（不抛）。"""
        from sapcli.commands.unit_test import cmd_unit_test

        client = MagicMock()
        client.run_unit_test.side_effect = Exception("connection refused")

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

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

    def test_no_test_classes(self):
        """无测试类时打印提示。"""
        from sapcli.commands.unit_test import cmd_unit_test

        client = MagicMock()
        client.run_unit_test.return_value = {"summary": {}, "classes": []}

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

        printed = " ".join(str(c) for c, _ in mock_print.call_args_list)
        self.assertIn("未找到测试类", printed)

    def test_passed_class(self):
        """全部通过时打印 PASSED 和方法数。"""
        from sapcli.commands.unit_test import cmd_unit_test

        client = MagicMock()
        client.run_unit_test.return_value = {
            "summary": {
                "tests": "2", "failures": "0", "errors": "0", "skipped": "0",
            },
            "classes": [
                {
                    "name": "ZCL_TEST",
                    "methods": [
                        {"name": "test1", "duration": "1.5"},
                        {"name": "test2", "duration": "0.5"},
                    ],
                },
            ],
        }

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

        printed = " ".join(str(c) for c, _ in mock_print.call_args_list)
        self.assertIn("PASSED", printed)
        self.assertIn("2 methods", printed)
        # 合计行
        self.assertIn("合计", printed)

    def test_failed_class_with_alert_and_line(self):
        """方法失败时打印 FAILED、方法名、行号、告警内容。"""
        from sapcli.commands.unit_test import cmd_unit_test

        client = MagicMock()
        client.run_unit_test.return_value = {
            "summary": {
                "tests": "1", "failures": "1", "errors": "0", "skipped": "0",
            },
            "classes": [
                {
                    "name": "ZCL_TEST",
                    "methods": [
                        {
                            "name": "test_fail", "duration": "0.1",
                            "alert": "Assertion failed", "line": "42",
                        },
                    ],
                },
            ],
        }

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

        printed = " ".join(str(c) for c, _ in mock_print.call_args_list)
        self.assertIn("FAILED", printed)
        self.assertIn("test_fail", printed)
        self.assertIn("42", printed)
        self.assertIn("Assertion failed", printed)
        self.assertIn("at line 42", printed)

    def test_failed_without_line_omits_line_info(self):
        """失败方法无 line 时不打印 at line。"""
        from sapcli.commands.unit_test import cmd_unit_test

        client = MagicMock()
        client.run_unit_test.return_value = {
            "summary": {},
            "classes": [
                {
                    "name": "ZCL_TEST",
                    "methods": [{"name": "test_x", "alert": "boom"}],
                },
            ],
        }

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

        printed = " ".join(str(c) for c, _ in mock_print.call_args_list)
        self.assertIn("FAILED", printed)
        self.assertIn("boom", printed)
        self.assertNotIn("at line", printed)

    def test_class_without_name_falls_back_to_display(self):
        """class name 为空时回退到 parsed.display_name。"""
        from sapcli.commands.unit_test import cmd_unit_test

        client = MagicMock()
        client.run_unit_test.return_value = {
            "summary": {},
            "classes": [
                {"name": None, "methods": [{"name": "test1"}]},
            ],
        }

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

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

    def test_summary_defaults_when_missing(self):
        """summary 缺字段时使用默认值（? / 0）。"""
        from sapcli.commands.unit_test import cmd_unit_test

        client = MagicMock()
        client.run_unit_test.return_value = {
            "summary": {},
            "classes": [{"name": "ZCL", "methods": [{"name": "t1"}]}],
        }

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

        printed = " ".join(str(c) for c, _ in mock_print.call_args_list)
        # tests 默认 "?"
        self.assertIn("?", printed)


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