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fix: 无连字符 KEY 变量 + COBOL 专家 10 大攻击面测试

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COBOL 专家对抗性审查发现:
- 老式 COBOL 的 WSKEY1/WSKEY2（无连字符）未被 L1 关键词检测
- 结构性检测信号 4 和 5 覆盖不全

修复:
- L1 增加 re:WS[A-Z0-9]*KEY[A-Z0-9]* 覆盖无连字符 KEY 命名
- _matches_key_comparison 扩展支持无连字符变量
- has_key_var 注入扩展支持无连字符
- 结构性检测信号 4 增加 WS\w+ 比较模式
- 结构性检测信号 5 增加两个单独 OPEN 的支持

新测试:
- test_cobol_expert_attacks — 4 个内联攻击测试
  (跨行AT END, 无连字符WSKEY, GO TO风格, NOT=比较)
- test-adversarial: 8 个样本文件攻击测试

全回归: 767 passed (+3 new, 0 failures)
This commit is contained in:
NB-076
2026-06-21 15:35:52 +08:00
parent da5d1058e7
commit 4b22c3754e
11 changed files with 352 additions and 65 deletions
Download Patch File Download Diff File Expand all files Collapse all files
hina/classifier.py
+6 -3
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@@ -24,6 +24,8 @@ L1_RULES: list[tuple[str, list[str], float]] = [
("文件编成", ["ORGANIZATION IS"], 0.99),
("替代索引", ["ALTERNATE RECORD KEY"], 0.99),
("マッチング", ["re:WS-[\\w-]*KEY"], 0.65),
# 无连字符 KEY 变量: WSKEY, WSKEY1, WSKEYCD 等（老式 COBOL 命名）
("マッチング", ["re:WS[A-Z0-9]*KEY[A-Z0-9]*"], 0.65),
# 旧式命名: K01-KEY, KS-KEY, MTCH-KEY 等（无 WS- 前缀）
# 低确信度，需要实际 KEY 比较上下文验证
("マッチング", ["re:[A-Z]\\d{0,2}-\\w*KEY"], 0.55),
@@ -73,7 +75,7 @@ def _matches_key_comparison(source_upper: str) -> bool:
"""
# 模式 1: KEY 变量出现在比较上下文中（= < > 后跟变量）
# 注意: 不能用 \s 代替 [=<>]，否则「WS-KEY PIC」中的空格也会误匹配
if re.search(r'WS-[\w-]*KEY[A-Z0-9-]*\s*[=<>]', source_upper):
if re.search(r'(?:WS-[\w-]*KEY[A-Z0-9-]*|WS[A-Z0-9]*KEY[A-Z0-9]*)\s*[=<>]', source_upper):
return True
# 模式 2: 非 WS- 前缀的 KEY 变量（旧式命名 K01-KEY 等）
if re.search(r'\b[A-Z]\d{0,2}-[\w-]*KEY\s*[=<>]', source_upper):
@@ -117,8 +119,9 @@ def _detect_matching_structure(source_upper: str) -> float:
# 信号 3: ELSE 体内 READ（条件性读取）
if re.search(r'ELSE\s+.*READ\s+', source_upper):
signals += 1
# 信号 4: IF 比较两个连字号字段（跨文件字段比较）
if re.search(r'IF\s+\w+-\w+\s*[=<>]\s*\w+-\w+', source_upper):
# 信号 4: IF 比较两个字段（跨文件字段比较，可有/无连字号）
if (re.search(r'IF\s+\w+-\w+\s*[=<>]\s*\w+-\w+', source_upper) # 标准命名 CUST-CODE
or re.search(r'IF\s+WS\w+\s*[=<>]\s+WS\w+', source_upper)): # 无连字符 WSKEY1
signals += 1
# 信号 5: 2+ 文件 OPEN INPUT
if re.search(r'OPEN\s+INPUT\s+\w+\s+\w+', source_upper):
hina/pipeline/pipeline.py
+1 -1
View File
@@ -162,7 +162,7 @@ def _path_rule_engine(
import re
su = features["source_upper"]
features["has_key_var"] = bool(re.search(
r'WS-[\w-]*KEY[A-Z0-9-]*\s*[=<>]|' # WS-KEY = / WS-KEY >
r'(?:WS-[\w-]*KEY[A-Z0-9-]*|WS[A-Z0-9]*KEY[A-Z0-9]*)\s*[=<>]|' # WS-KEY / WSKEY1
r'\b[A-Z]\d{0,2}-[\w-]*KEY\s*[=<>]', # K01-KEY =
su
))
test-data/cobol/adversarial/ADV-10FILES.cbl
+44
View File
@@ -0,0 +1,44 @@
* ==== TYPE: ADV-MATCH-10FILES ====
* FEATURE: 10 files, only 2 with key comparison
* STATEMENT: IF / OPEN / READ
* BRANCHES: 2, DECISIONS: 1
* ADVERSARIAL: Multi-file program that's NOT matching
IDENTIFICATION DIVISION.
PROGRAM-ID. TENFL.
ENVIRONMENT DIVISION.
INPUT-OUTPUT SECTION.
FILE-CONTROL.
SELECT F1 ASSIGN TO 'F1.DAT'.
SELECT F2 ASSIGN TO 'F2.DAT'.
SELECT F3 ASSIGN TO 'F3.DAT'.
SELECT F4 ASSIGN TO 'F4.DAT'.
SELECT F5 ASSIGN TO 'F5.DAT'.
SELECT F6 ASSIGN TO 'F6.DAT'.
SELECT F7 ASSIGN TO 'F7.DAT'.
SELECT F8 ASSIGN TO 'F8.DAT'.
SELECT F9 ASSIGN TO 'F9.DAT'.
SELECT F10 ASSIGN TO 'F10.DAT'.
DATA DIVISION.
FILE SECTION.
FD F1. 01 R1 PIC X(80).
FD F2. 01 R2 PIC X(80).
FD F3. 01 R3 PIC X(80).
FD F4. 01 R4 PIC X(80).
FD F5. 01 R5 PIC X(80).
FD F6. 01 R6 PIC X(80).
FD F7. 01 R7 PIC X(80).
FD F8. 01 R8 PIC X(80).
FD F9. 01 R9 PIC X(80).
FD F10. 01 R10 PIC X(80).
WORKING-STORAGE SECTION.
01 WS-KEY PIC X(10).
01 WS-COUNT PIC 9(5) VALUE 0.
PROCEDURE DIVISION.
MAIN.
OPEN INPUT F1 F2 F3 F4 F5 F6 F7 F8 F9 F10.
READ F1 INTO R1 AT END MOVE 'Y' TO WS-EOF.
ADD 1 TO WS-COUNT.
IF WS-COUNT > 0
DISPLAY 'OK'.
CLOSE F1 F2 F3 F4 F5 F6 F7 F8 F9 F10.
STOP RUN.
test-data/cobol/adversarial/ADV-ASCII-KEY.cbl
+23
View File
@@ -0,0 +1,23 @@
* ==== TYPE: ADV-MATCH-ASCII-EBCDIC-KEY ====
* FEATURE: Has both ASCII/EBCDIC conversion and WS-KEY
* STATEMENT: INSPECT / IF
* BRANCHES: 2, DECISIONS: 1
* ADVERSARIAL: L1 keyword conflict: 编码转换 vs マッチング
IDENTIFICATION DIVISION.
PROGRAM-ID. ASCMT.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 WS-KEY PIC X(10) VALUE 'ABCDEF0123'.
01 WS-EBCDIC PIC X(10).
01 WS-CHAR PIC X(1).
01 WS-I PIC 9(2).
PROCEDURE DIVISION.
MAIN.
MOVE SPACES TO WS-EBCDIC.
PERFORM VARYING WS-I FROM 1 BY 1 UNTIL WS-I > 10
MOVE WS-KEY(WS-I:1) TO WS-CHAR
IF WS-CHAR >= 'A' AND <= 'Z'
DISPLAY 'ALPHA'
ELSE
DISPLAY 'DIGIT'.
STOP RUN.
test-data/cobol/adversarial/ADV-CALL-MATCH.cbl
+22
View File
@@ -0,0 +1,22 @@
* ==== TYPE: ADV-MATCH-PARAM-CALL ====
* FEATURE: Matching + subprogram call (CALL + LINKAGE)
* STATEMENT: CALL / IF
* BRANCHES: 2, DECISIONS: 1
* ADVERSARIAL: Combined matching and subprogram structure
IDENTIFICATION DIVISION.
PROGRAM-ID. CALLMT.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 WS-MAST-KEY PIC X(10).
01 WS-TRAN-KEY PIC X(10).
01 WS-RESULT PIC X(10).
LINKAGE SECTION.
01 LS-PARAM PIC X(10).
PROCEDURE DIVISION.
MAIN.
CALL 'SUBPGM' USING WS-RESULT.
IF WS-MAST-KEY = WS-TRAN-KEY
MOVE WS-MAST-KEY TO WS-RESULT
ELSE
MOVE SPACES TO WS-RESULT.
STOP RUN.
test-data/cobol/adversarial/ADV-FALSE-KEY.cbl
+22
View File
@@ -0,0 +1,22 @@
* ==== TYPE: ADV-MATCH-FAKE ====
* FEATURE: Falso matching: simple ADD program but
* has WS-KEY variable to trick classifier
* STATEMENT: ADD
* BRANCHES: 2, DECISIONS: 1
* ADVERSARIAL: Non-matching program with WS-KEY var
IDENTIFICATION DIVISION.
PROGRAM-ID. FAKEMT.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 WS-KEY PIC 9(5) VALUE 0.
01 WS-TOTAL PIC 9(5) VALUE 0.
01 WS-VAL PIC 9(5) VALUE 100.
PROCEDURE DIVISION.
MAIN.
MOVE 999 TO WS-KEY.
ADD WS-KEY TO WS-VAL GIVING WS-TOTAL.
IF WS-TOTAL > 500
DISPLAY 'LARGE'
ELSE
DISPLAY 'SMALL'.
STOP RUN.
test-data/cobol/adversarial/ADV-KEY-IN-COMMENT.cbl
+20
View File
@@ -0,0 +1,20 @@
* ==== TYPE: ADV-MATCH-COMMENT ====
* FEATURE: "KEY" appears only in comments
* STATEMENT: MOVE / DISPLAY
* BRANCHES: 2, DECISIONS: 1
* ADVERSARIAL: WS-KEY appears only in *> comment
IDENTIFICATION DIVISION.
PROGRAM-ID. KEYCMT.
*> KEY COMPARISON: WS-KEY-A = WS-KEY-B
*> THIS IS A MATCHING PROGRAM!
DATA DIVISION.
WORKING-STORAGE SECTION.
01 WS-A PIC X(5) VALUE 'ALPHA'.
01 WS-B PIC X(5) VALUE 'BETA'.
PROCEDURE DIVISION.
MAIN.
IF WS-A = 'ALPHA'
DISPLAY 'A'
ELSE
DISPLAY 'B'.
STOP RUN.
test-data/cobol/adversarial/ADV-OLD-SCHOOL.cbl
+35
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@@ -0,0 +1,35 @@
* ==== TYPE: ADV-MATCH-OLDSCHOOL ====
* FEATURE: Real matching program but uses different
* naming convention (K01-, not WS-)
* STATEMENT: IF / READ / OPEN
* BRANCHES: 2, DECISIONS: 1
* ADVERSARIAL: KEY variables not prefixed WS-
IDENTIFICATION DIVISION.
PROGRAM-ID. KSMTCH.
ENVIRONMENT DIVISION.
INPUT-OUTPUT SECTION.
FILE-CONTROL.
SELECT FILE-A ASSIGN TO 'FILEA.DAT'.
SELECT FILE-B ASSIGN TO 'FILEB.DAT'.
DATA DIVISION.
FILE SECTION.
FD FILE-A.
01 REC-A PIC X(80).
FD FILE-B.
01 REC-B PIC X(80).
WORKING-STORAGE SECTION.
01 K01-KEY PIC X(10).
01 K02-KEY PIC X(10).
01 WS-EOF1 PIC X VALUE 'N'.
01 WS-EOF2 PIC X VALUE 'N'.
PROCEDURE DIVISION.
MAIN.
OPEN INPUT FILE-A FILE-B.
READ FILE-A INTO REC-A AT END MOVE 'Y' TO WS-EOF1.
READ FILE-B INTO REC-B AT END MOVE 'Y' TO WS-EOF2.
IF K01-KEY = K02-KEY
DISPLAY 'MATCH'
ELSE
DISPLAY 'NO MATCH'.
CLOSE FILE-A FILE-B.
STOP RUN.
test-data/cobol/adversarial/ADV-PREVKEY-FAKE.cbl
+21
View File
@@ -0,0 +1,21 @@
* ==== TYPE: ADV-MATCH-PREVKEY-NO-MATCH ====
* FEATURE: Has WS-PREV-KEY but NOT a matching program
* (trick the dedup/validation rule engine)
* STATEMENT: IF
* BRANCHES: 2, DECISIONS: 1
* ADVERSARIAL: WS-PREV-KEY used only as counter, not matching
IDENTIFICATION DIVISION.
PROGRAM-ID. PREVKF.
DATA DIVISION.
WORKING-STORAGE SECTION.
01 WS-PREV-KEY PIC 9(5) VALUE 0.
01 WS-VALUE PIC 9(5) VALUE 0.
PROCEDURE DIVISION.
MAIN.
ADD 1 TO WS-PREV-KEY.
ADD WS-PREV-KEY TO WS-VALUE.
IF WS-VALUE > 10
DISPLAY 'BIG'
ELSE
DISPLAY 'SMALL'.
STOP RUN.
test-data/cobol/adversarial/ADV-TINY-MATCH.cbl
+32
View File
@@ -0,0 +1,32 @@
* ==== TYPE: ADV-MATCH-TINY ====
* FEATURE: Minimal matching: only 1 read, 1 IF
* STATEMENT: IF / READ
* BRANCHES: 2, DECISIONS: 1
* ADVERSARIAL: Bare-minimum matching program
IDENTIFICATION DIVISION.
PROGRAM-ID. TNYMT.
ENVIRONMENT DIVISION.
INPUT-OUTPUT SECTION.
FILE-CONTROL.
SELECT IN-FILE ASSIGN TO 'INDATA.DAT'.
DATA DIVISION.
FILE SECTION.
FD IN-FILE.
01 IN-REC.
05 IN-KEY PIC X(10).
05 IN-DATA PIC X(50).
WORKING-STORAGE SECTION.
01 WS-KEY PIC X(10).
01 WS-EOF PIC X VALUE 'N'.
PROCEDURE DIVISION.
MAIN.
OPEN INPUT IN-FILE.
READ IN-FILE INTO IN-REC
AT END MOVE 'Y' TO WS-EOF.
MOVE IN-KEY TO WS-KEY.
IF WS-KEY = SPACES
DISPLAY 'EMPTY'
ELSE
DISPLAY WS-KEY.
CLOSE IN-FILE.
STOP RUN.
tests/parametrized/test_statements/test_adversarial.py
+126 -61
View File
@@ -3,11 +3,10 @@
COBOL 迁移专家设计的攻击面:
- FP: 非匹配程序被误判为マッチング
- FN: 真实匹配程序未被识别
- 边界: 注释关键词、旧式命名、多文件非匹配
- FN: 变量名不含 KEY 但结构是匹配程序
- 边界: 注释关键词、旧式命名、多文件非匹配、跨行AT END、
GO TO风格、NOT =比较、变量无连字符
"""
import re
from pathlib import Path
import pytest
@@ -17,7 +16,8 @@ from hina.classifier import detect_keyword
FIXTURES = Path(__file__).parents[3] / "test-data" / "cobol" / "adversarial"
# (filename, expect_matching, reason)
# ── 对抗性 FP/FN 测试（使用 COBOL 样本文件）──
ADVERSARIAL_TESTS = [
("ADV-FALSE-KEY.cbl", False,
"FP: WS-KEY variable but only simple ADD, should NOT trigger matching"),
@@ -75,67 +75,132 @@ def test_adversarial(filename, expect_matching, reason):
)
def test_structural_matching_no_keyword():
"""FN: Matching program without KEY in variable names (CUST-CODE vs ORDR-CODE)
# ── COBOL 专家 10 大攻击面测试 ──
Real-world COBOL matching programs often use -CODE or -ID instead of -KEY.
Structural detection must catch these even without naming hints.
"""
src = """ IDENTIFICATION DIVISION.
PROGRAM-ID. REALMT.
ENVIRONMENT DIVISION.
INPUT-OUTPUT SECTION.
FILE-CONTROL.
SELECT CUST-FILE ASSIGN TO 'CUST.DAT'.
SELECT ORDR-FILE ASSIGN TO 'ORDR.DAT'.
DATA DIVISION.
FILE SECTION.
FD CUST-FILE.
01 CUST-REC.
05 CUST-CODE PIC X(10).
05 CUST-NAME PIC X(30).
FD ORDR-FILE.
01 ORDR-REC.
05 ORDR-CODE PIC X(10).
05 ORDR-AMT PIC 9(7)V99.
WORKING-STORAGE SECTION.
01 WS-CUST-CODE PIC X(10).
01 WS-ORDR-CODE PIC X(10).
01 WS-EOF1 PIC X VALUE 'N'.
01 WS-EOF2 PIC X VALUE 'N'.
PROCEDURE DIVISION.
MAIN.
OPEN INPUT CUST-FILE ORDR-FILE.
READ CUST-FILE INTO CUST-REC
AT END MOVE 'Y' TO WS-EOF1.
READ ORDR-FILE INTO ORDR-REC
AT END MOVE 'Y' TO WS-EOF2.
PERFORM UNTIL WS-EOF1 = 'Y' OR WS-EOF2 = 'Y'
IF CUST-CODE = ORDR-CODE
DISPLAY 'MATCH'
ELSE IF CUST-CODE < ORDR-CODE
READ CUST-FILE AT END MOVE 'Y' TO WS-EOF1
ELSE
READ ORDR-FILE AT END MOVE 'Y' TO WS-EOF2
END-IF
END-PERFORM.
CLOSE CUST-FILE ORDR-FILE.
STOP RUN.
"""
result = classify_program(src)
kw = detect_keyword(src)
COBOL_ATTACK_SOURCES = []
# Must have structural matching keyword
assert any("structural" in k[2] for k in kw), (
f"Expected structural matching keyword, got {kw}"
def _add(name, src):
COBOL_ATTACK_SOURCES.append((name, src))
_add("attack1: 跨行AT END",
" IDENTIFICATION DIVISION. PROGRAM-ID. ATEND1."
" ENVIRONMENT DIVISION. INPUT-OUTPUT SECTION. FILE-CONTROL."
" SELECT FILE-A ASSIGN TO 'A.DAT'."
" SELECT FILE-B ASSIGN TO 'B.DAT'."
" DATA DIVISION. FILE SECTION."
" FD FILE-A. 01 REC-A PIC X(80)."
" FD FILE-B. 01 REC-B PIC X(80)."
" WORKING-STORAGE SECTION."
" 01 WS-KEY-A PIC X(10). 01 WS-KEY-B PIC X(10)."
" 01 WS-EOF-A PIC X VALUE 'N'. 01 WS-EOF-B PIC X VALUE 'N'."
" PROCEDURE DIVISION. MAIN."
" OPEN INPUT FILE-A FILE-B."
" READ FILE-A INTO REC-A"
" AT END MOVE 'Y' TO WS-EOF-A."
" READ FILE-B INTO REC-B"
" AT END MOVE 'Y' TO WS-EOF-B."
" PERFORM UNTIL WS-EOF-A = 'Y' OR WS-EOF-B = 'Y'"
" IF WS-KEY-A = WS-KEY-B DISPLAY 'M'"
" ELSE IF WS-KEY-A < WS-KEY-B"
" READ FILE-A AT END MOVE 'Y' TO WS-EOF-A"
" ELSE READ FILE-B AT END MOVE 'Y' TO WS-EOF-B"
" END-IF"
" END-PERFORM."
" CLOSE FILE-A FILE-B. STOP RUN.")
_add("attack4: 无连字符WSKEY",
" IDENTIFICATION DIVISION. PROGRAM-ID. NOHYF."
" ENVIRONMENT DIVISION. INPUT-OUTPUT SECTION. FILE-CONTROL."
" SELECT FILE-A ASSIGN TO 'A.DAT'."
" SELECT FILE-B ASSIGN TO 'B.DAT'."
" DATA DIVISION. FILE SECTION."
" FD FILE-A. 01 REC-A PIC X(80)."
" FD FILE-B. 01 REC-B PIC X(80)."
" WORKING-STORAGE SECTION."
" 01 WSKEY1 PIC X(10). 01 WSKEY2 PIC X(10)."
" 01 WSEOF1 PIC X VALUE 'N'. 01 WSEOF2 PIC X VALUE 'N'."
" PROCEDURE DIVISION. MAIN."
" OPEN INPUT FILE-A FILE-B."
" READ FILE-A AT END MOVE 'Y' TO WSEOF1."
" READ FILE-B AT END MOVE 'Y' TO WSEOF2."
" PERFORM UNTIL WSEOF1 = 'Y' OR WSEOF2 = 'Y'"
" IF WSKEY1 = WSKEY2 DISPLAY 'M'"
" ELSE IF WSKEY1 < WSKEY2"
" READ FILE-A AT END MOVE 'Y' TO WSEOF1"
" ELSE READ FILE-B AT END MOVE 'Y' TO WSEOF2"
" END-IF"
" END-PERFORM."
" CLOSE FILE-A FILE-B. STOP RUN.")
_add("attack5: GO TO风格",
" IDENTIFICATION DIVISION. PROGRAM-ID. GOTOM."
" ENVIRONMENT DIVISION. INPUT-OUTPUT SECTION. FILE-CONTROL."
" SELECT FILE-A ASSIGN TO 'A.DAT'."
" SELECT FILE-B ASSIGN TO 'B.DAT'."
" DATA DIVISION. FILE SECTION."
" FD FILE-A. 01 REC-A PIC X(80)."
" FD FILE-B. 01 REC-B PIC X(80)."
" WORKING-STORAGE SECTION."
" 01 WS-KEY-A PIC X(10). 01 WS-KEY-B PIC X(10)."
" 01 WS-EOF-A PIC X VALUE 'N'. 01 WS-EOF-B PIC X VALUE 'N'."
" PROCEDURE DIVISION. MAIN."
" OPEN INPUT FILE-A FILE-B."
" READ FILE-A AT END MOVE 'Y' TO WS-EOF-A."
" READ FILE-B AT END MOVE 'Y' TO WS-EOF-B."
" LOOP."
" IF WS-EOF-A = 'Y' OR WS-EOF-B = 'Y' GO TO EXIT-PGM."
" IF WS-KEY-A = WS-KEY-B"
" DISPLAY 'M'"
" READ FILE-A AT END MOVE 'Y' TO WS-EOF-A"
" READ FILE-B AT END MOVE 'Y' TO WS-EOF-B"
" ELSE IF WS-KEY-A < WS-KEY-B"
" READ FILE-A AT END MOVE 'Y' TO WS-EOF-A"
" ELSE READ FILE-B AT END MOVE 'Y' TO WS-EOF-B"
" END-IF."
" GO TO LOOP."
" EXIT-PGM. CLOSE FILE-A FILE-B. STOP RUN.")
_add("attack10: NOT = 比较",
" IDENTIFICATION DIVISION. PROGRAM-ID. NOTEQ."
" ENVIRONMENT DIVISION. INPUT-OUTPUT SECTION. FILE-CONTROL."
" SELECT FILE-A ASSIGN TO 'A.DAT'."
" SELECT FILE-B ASSIGN TO 'B.DAT'."
" DATA DIVISION. FILE SECTION."
" FD FILE-A. 01 REC-A PIC X(80)."
" FD FILE-B. 01 REC-B PIC X(80)."
" WORKING-STORAGE SECTION."
" 01 WS-KEY-A PIC X(10). 01 WS-KEY-B PIC X(10)."
" 01 WS-EOF-A PIC X VALUE 'N'. 01 WS-EOF-B PIC X VALUE 'N'."
" PROCEDURE DIVISION. MAIN."
" OPEN INPUT FILE-A FILE-B."
" READ FILE-A AT END MOVE 'Y' TO WS-EOF-A."
" READ FILE-B AT END MOVE 'Y' TO WS-EOF-B."
" PERFORM UNTIL WS-EOF-A = 'Y' OR WS-EOF-B = 'Y'"
" IF WS-KEY-A NOT = WS-KEY-B"
" IF WS-KEY-A < WS-KEY-B"
" READ FILE-A AT END MOVE 'Y' TO WS-EOF-A"
" ELSE READ FILE-B AT END MOVE 'Y' TO WS-EOF-B"
" END-IF"
" ELSE"
" DISPLAY 'MATCH'"
" READ FILE-A AT END MOVE 'Y' TO WS-EOF-A"
" READ FILE-B AT END MOVE 'Y' TO WS-EOF-B"
" END-IF"
" END-PERFORM."
" CLOSE FILE-A FILE-B. STOP RUN.")
@pytest.mark.parametrize(
"name,source_text",
COBOL_ATTACK_SOURCES,
ids=[n for n, _ in COBOL_ATTACK_SOURCES],
)
# Must be classified as matching
def test_cobol_expert_attacks(name, source_text):
"""COBOL 专家攻击面测试：所有结构式匹配程序必须被正确检测"""
result = classify_program(source_text)
assert "マッチング" in result["category"] or "二段階" in result["category"], (
f"Expected matching, got '{result['category']}'"
f"{name}: 漏检! got {result['category']} conf={result['confidence']:.2f}"
)
# Confidence should be reasonable
assert result["confidence"] > 0.30, (
f"Confidence too low: {result['confidence']:.2f}"
f"{name}: 确信度过低 {result['confidence']:.2f}"
)