kin: KIN-OBS-027 Исправить catch(e: any) и setTimeout cleanup в LiveConsole.vue

tests/test_deploy.py

@@ -740,3 +740,112 @@ class TestProjectLinksIndexMigration:
         assert "idx_project_links_from" in after
         assert before == after
         conn.close()
+
+
+# ---------------------------------------------------------------------------
+# 12. Migration: UNIQUE(from_project, to_project, type) (KIN-INFRA-013)
+# Convention #433: set-assert unique constraint after fresh init
+# Convention #434: negative test — ALTER TABLE cannot add UNIQUE in SQLite
+# ---------------------------------------------------------------------------
+
+class TestProjectLinksUniqueMigration:
+    """KIN-INFRA-013: UNIQUE(from_project, to_project, type) на project_links."""
+
+    # --- fresh schema ---
+
+    def test_fresh_schema_project_links_has_unique_constraint(self):
+        """Свежая схема должна иметь UNIQUE-ограничение на (from_project, to_project, type)."""
+        conn = init_db(db_path=":memory:")
+        unique_indexes = [
+            r for r in conn.execute("PRAGMA index_list(project_links)").fetchall()
+            if r[2] == 1  # unique == 1
+        ]
+        assert len(unique_indexes) >= 1
+        conn.close()
+
+    # --- модельный уровень ---
+
+    def test_create_duplicate_link_raises_integrity_error(self, conn):
+        """Дублирующая вставка должна вызывать IntegrityError."""
+        import sqlite3 as _sqlite3
+        models.create_project(conn, "dup_a", "A", "/a")
+        models.create_project(conn, "dup_b", "B", "/b")
+        models.create_project_link(conn, "dup_a", "dup_b", "depends_on")
+        with pytest.raises(_sqlite3.IntegrityError):
+            models.create_project_link(conn, "dup_a", "dup_b", "depends_on")
+
+    # --- migration guard: 3 кейса (Convention #384) ---
+
+    # Кейс 1: без таблицы — guard не падает
+    def test_migrate_without_project_links_table_no_error_unique(self):
+        conn = _old_schema_no_deploy()  # project_links отсутствует
+        _migrate(conn)  # не должно упасть
+        conn.close()
+
+    # Кейс 2: таблица без UNIQUE → _migrate() добавляет ограничение
+    def test_migrate_adds_unique_constraint_to_old_schema(self):
+        conn = _schema_with_project_links_no_indexes()  # без UNIQUE
+        _migrate(conn)
+        pl_sql = conn.execute(
+            "SELECT sql FROM sqlite_master WHERE type='table' AND name='project_links'"
+        ).fetchone()
+        assert "UNIQUE" in (pl_sql[0] or "").upper()
+        conn.close()
+
+    # Кейс 3: таблица уже с UNIQUE → _migrate() идемпотентен
+    def test_migrate_unique_constraint_is_idempotent(self):
+        conn = init_db(db_path=":memory:")
+        before_sql = conn.execute(
+            "SELECT sql FROM sqlite_master WHERE type='table' AND name='project_links'"
+        ).fetchone()[0]
+        _migrate(conn)
+        after_sql = conn.execute(
+            "SELECT sql FROM sqlite_master WHERE type='table' AND name='project_links'"
+        ).fetchone()[0]
+        assert before_sql == after_sql
+        conn.close()
+
+    # Convention #434: документируем, почему ALTER TABLE нельзя использовать
+    def test_alter_table_cannot_add_unique_constraint(self):
+        """SQLite не поддерживает ALTER TABLE ADD CONSTRAINT.
+
+        Именно поэтому _migrate() пересоздаёт таблицу вместо ALTER TABLE.
+        """
+        import sqlite3 as _sqlite3
+        _conn = _sqlite3.connect(":memory:")
+        _conn.execute("CREATE TABLE t (a TEXT, b TEXT)")
+        with pytest.raises(_sqlite3.OperationalError):
+            _conn.execute("ALTER TABLE t ADD CONSTRAINT uq UNIQUE (a, b)")
+        _conn.close()
+
+
+# ---------------------------------------------------------------------------
+# 13. API: POST /api/project-links возвращает 409 при дублировании
+# ---------------------------------------------------------------------------
+
+class TestProjectLinksDuplicateAPI:
+    def _create_projects(self, client):
+        client.post("/api/projects", json={"id": "dup_p2", "name": "P2", "path": "/p2"})
+
+    def test_create_duplicate_link_returns_409(self, client):
+        self._create_projects(client)
+        client.post("/api/project-links", json={
+            "from_project": "p1", "to_project": "dup_p2", "type": "depends_on"
+        })
+        r = client.post("/api/project-links", json={
+            "from_project": "p1", "to_project": "dup_p2", "type": "depends_on"
+        })
+        assert r.status_code == 409
+        assert "already exists" in r.json()["detail"].lower()
+
+    def test_same_projects_different_type_not_duplicate(self, client):
+        """Одна пара проектов с разными type — не дубликат."""
+        self._create_projects(client)
+        r1 = client.post("/api/project-links", json={
+            "from_project": "p1", "to_project": "dup_p2", "type": "depends_on"
+        })
+        r2 = client.post("/api/project-links", json={
+            "from_project": "p1", "to_project": "dup_p2", "type": "references"
+        })
+        assert r1.status_code == 201
+        assert r2.status_code == 201