feat(impact): Impact Agent MVP —— 变更点定位 + 影响调查书（追加改修场景）

- 门控：用户提供 existing_system 路径 → 进入影响调查；未提供 → 原流程不变 - CodeParser 解析 Java（@RestController/@Service/@Entity/@TableName）+ ExistingSystemExplorer 组装 - ImpactAgent 变更点定位（变更区分×既存対応确定性比对，无 LLM）→ ImpactReport（JSON 可下载） - 影响调查结果作为 Writer 生成概要设计书的主上下文（{{impact}}，无专用影响章） - source_aggregator 解除 existing_system=None 硬编码 - 既有系统样本 sunOnly/stock-trade-system（无 LICENSE，仅测试输入，保留来源标注） - 新造股票交易域追加改修样本要件定義_追加改修_股票.xlsx（对齐 sunOnly 真实类名） - 全量 351 passed / 99.27% 覆盖；门禁 PASS（16 要素：新规5/変更8/削除3/未受影响50）
2026-08-23 17:59:08 +08:00
parent da33df92e1
commit 2e11720a2d
383 changed files with 18411 additions and 10 deletions
@@ -0,0 +1,126 @@
+"""CodeParser 测试（Impact Agent MVP）：Java 项目解析 → CodeStructure。"""
+from pathlib import Path
+
+import pytest
+
+from genesis.impact.code_parser import CodeParseError, CodeParser
+
+FIXTURE_JAVA = {
+    "trade-order/src/main/java/com/trade/order/controller/OrderController.java": (
+        "package com.trade.order.controller;\n"
+        "import org.springframework.web.bind.annotation.*;\n"
+        "@RestController\n"
+        "@RequestMapping(\"/api/order\")\n"
+        "public class OrderController {\n"
+        "    @GetMapping(\"/{id}\")\n"
+        "    public String getOrder(@PathVariable Long id) { return \"ok\"; }\n"
+        "    @PostMapping(\"/create\")\n"
+        "    public String createOrder() { return \"ok\"; }\n"
+        "}\n"
+    ),
+    "trade-order/src/main/java/com/trade/order/service/OrderQueryService.java": (
+        "package com.trade.order.service;\n"
+        "import org.springframework.stereotype.Service;\n"
+        "@Service\n"
+        "public class OrderQueryService {\n"
+        "    public void query() {}\n"
+        "    public void update() {}\n"
+        "}\n"
+    ),
+    "trade-order/src/main/java/com/trade/order/entity/OrderEntity.java": (
+        "package com.trade.order.entity;\n"
+        "import javax.persistence.Entity;\n"
+        "import javax.persistence.Table;\n"
+        "@Entity\n"
+        "@Table(name = \"t_order\")\n"
+        "public class OrderEntity {\n"
+        "    private Long id;\n"
+        "    private String orderNo;\n"
+        "}\n"
+    ),
+}
+
+
+def _make_project(tmp_path, files: dict[str, str]) -> Path:
+    for rel, content in files.items():
+        p = tmp_path / rel
+        p.parent.mkdir(parents=True, exist_ok=True)
+        p.write_text(content, encoding="utf-8")
+    return tmp_path
+
+
+def test_parse_controller_detected(tmp_path):
+    root = _make_project(tmp_path, FIXTURE_JAVA)
+    result = CodeParser().parse(root)
+    ctrls = {c.class_name: c for c in result.controllers}
+    oc = ctrls["OrderController"]
+    assert oc.base_path == "/api/order"
+    assert "/api/order/{id}" in oc.endpoints
+    assert "/api/order/create" in oc.endpoints
+    assert oc.source_uri.endswith("OrderController.java")
+
+
+def test_parse_service_detected(tmp_path):
+    root = _make_project(tmp_path, FIXTURE_JAVA)
+    result = CodeParser().parse(root)
+    svcs = {s.class_name: s for s in result.services}
+    oq = svcs["OrderQueryService"]
+    assert "query" in oq.methods
+    assert "update" in oq.methods
+
+
+def test_parse_entity_detected(tmp_path):
+    root = _make_project(tmp_path, FIXTURE_JAVA)
+    result = CodeParser().parse(root)
+    ents = {e.class_name: e for e in result.entities}
+    oe = ents["OrderEntity"]
+    assert oe.table_name == "t_order"
+    assert "id" in oe.fields
+    assert "orderNo" in oe.fields
+
+
+def test_parse_endpoints_detected(tmp_path):
+    root = _make_project(tmp_path, FIXTURE_JAVA)
+    result = CodeParser().parse(root)
+    paths = {(e.method, e.path) for e in result.endpoints}
+    assert ("GET", "/api/order/{id}") in paths
+    assert ("POST", "/api/order/create") in paths
+    assert all(e.controller == "OrderController" for e in result.endpoints)
+
+
+def test_parse_modules_top_level_dirs(tmp_path):
+    root = _make_project(tmp_path, FIXTURE_JAVA)
+    result = CodeParser().parse(root)
+    assert "trade-order" in result.modules
+    assert result.language == "java"
+
+
+def test_parse_no_java_raises(tmp_path):
+    (tmp_path / "readme.txt").write_text("hello", encoding="utf-8")
+    with pytest.raises(CodeParseError):
+        CodeParser().parse(tmp_path)
+
+
+def test_parse_missing_root_raises(tmp_path):
+    with pytest.raises(CodeParseError):
+        CodeParser().parse(tmp_path / "nope")
+
+
+def test_parse_real_sample_has_order_controller():
+    root = Path(__file__).resolve().parents[1] / "samples" / "existing-system"
+    if not root.exists():
+        pytest.skip("样本缺失")
+    result = CodeParser().parse(root)
+    names = {c.class_name for c in result.controllers}
+    assert "OrderController" in names
+    assert any(c.base_path for c in result.controllers)
+
+
+def test_parse_real_sample_has_entities_and_endpoints():
+    root = Path(__file__).resolve().parents[1] / "samples" / "existing-system"
+    if not root.exists():
+        pytest.skip("样本缺失")
+    result = CodeParser().parse(root)
+    assert result.entities, "既有系统样本应至少有一个实体类"
+    assert result.endpoints, "既有系统样本应至少有一个端点"
+    assert result.services, "既有系统样本应至少有一个 @Service 类"