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tests/unit/scripts/test_init_db.py

@@ -0,0 +1,27 @@
+"""scripts/init_db.py 的 Oracle 自增 SQL 生成器单测（与 migrate_db 对齐）。
+
+Oracle create_all 不生成 Integer 主键自增，init_db 会补 sequence + BEFORE INSERT 触发器；
+这里验证生成的 DDL 字符串正确（与 scripts/migrate_db.py 的既有实现一致）。
+"""
+
+import sys
+from pathlib import Path
+
+# scripts/ 下无 __init__.py，把 scripts 目录加进 sys.path 以便直接 import
+_SCRIPTS_DIR = Path(__file__).resolve().parents[3] / "scripts"
+if str(_SCRIPTS_DIR) not in sys.path:
+    sys.path.insert(0, str(_SCRIPTS_DIR))
+
+import init_db  # noqa: E402
+
+
+def test_oracle_sequence_sql():
+    seq = init_db.oracle_sequence_sql("fastapi_user", 27)
+    assert seq == "CREATE SEQUENCE fastapi_user_id_seq START WITH 27 INCREMENT BY 1 NOCACHE"
+
+
+def test_oracle_trigger_sql():
+    trg = init_db.oracle_trigger_sql("fastapi_user")
+    assert "BEFORE INSERT ON fastapi_user FOR EACH ROW" in trg
+    assert "WHEN (NEW.id IS NULL)" in trg
+    assert "SELECT fastapi_user_id_seq.NEXTVAL INTO :NEW.id FROM dual" in trg