145 lines
3.4 KiB
Python
145 lines
3.4 KiB
Python
import stdio
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import t, c
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import string
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# ============================================================
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# eq_test - ==、!=、is、is not、None 比较测试
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#
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# 验证比较表达式的翻译，特别是 None 常量和 is/is not 操作符
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# ============================================================
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def test_int_eq():
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stdio.printf("--- Test 1: int == / != ---\n")
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a: t.CInt = 42
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b: t.CInt = 42
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c3: t.CInt = 99
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if a == b:
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stdio.printf("int == int (same) OK\n")
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else:
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stdio.printf("int == int (same) FAIL\n")
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if a != c3:
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stdio.printf("int != int (diff) OK\n")
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else:
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stdio.printf("int != int (diff) FAIL\n")
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if not (a == c3):
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stdio.printf("not (int == diff) OK\n")
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else:
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stdio.printf("not (int == diff) FAIL\n")
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def test_int_cmp():
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stdio.printf("--- Test 2: int < > <= >= ---\n")
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a: t.CInt = 5
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b: t.CInt = 10
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if a < b:
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stdio.printf("int < OK\n")
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else:
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stdio.printf("int < FAIL\n")
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if b > a:
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stdio.printf("int > OK\n")
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else:
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stdio.printf("int > FAIL\n")
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if a <= 5:
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stdio.printf("int <= OK\n")
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else:
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stdio.printf("int <= FAIL\n")
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if b >= 10:
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stdio.printf("int >= OK\n")
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else:
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stdio.printf("int >= FAIL\n")
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def test_ptr_is_none():
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stdio.printf("--- Test 3: ptr is None / is not None ---\n")
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# strchr 找到字符返回非空指针，找不到返回 None
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p: str = string.strchr("Hello", 108) # 'l' = 108
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if p is not None:
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stdio.printf("strchr found, is not None OK\n")
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else:
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stdio.printf("strchr found, is not None FAIL\n")
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p2: str = string.strchr("Hello", 122) # 'z' = 122, not found
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if p2 is None:
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stdio.printf("strchr not found, is None OK\n")
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else:
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stdio.printf("strchr not found, is None FAIL\n")
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def test_ptr_assign_none():
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stdio.printf("--- Test 4: assign None and compare ---\n")
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p: str = None
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if p is None:
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stdio.printf("None assign, is None OK\n")
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else:
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stdio.printf("None assign, is None FAIL\n")
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if p is not None:
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stdio.printf("None assign, is not None FAIL\n")
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else:
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stdio.printf("None assign, is not None OK\n")
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def test_ptr_eq_none():
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stdio.printf("--- Test 5: ptr == None / != None ---\n")
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p: str = string.strstr("Hello World", "World")
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if p != None:
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stdio.printf("strstr found, != None OK\n")
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else:
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stdio.printf("strstr found, != None FAIL\n")
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p2: str = string.strstr("Hello", "xyz")
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if p2 == None:
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stdio.printf("strstr not found, == None OK\n")
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else:
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stdio.printf("strstr not found, == None FAIL\n")
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def test_bool_logic():
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stdio.printf("--- Test 6: bool and/or ---\n")
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a: t.CInt = 1
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b: t.CInt = 0
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if a and b:
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stdio.printf("1 and 0 = true FAIL\n")
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else:
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stdio.printf("1 and 0 = false OK\n")
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if a or b:
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stdio.printf("1 or 0 = true OK\n")
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else:
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stdio.printf("1 or 0 = true FAIL\n")
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if not b:
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stdio.printf("not 0 = true OK\n")
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else:
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stdio.printf("not 0 = true FAIL\n")
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def eq_test() -> int:
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stdio.printf("=== eq_test: ==、!=、is、None 比较测试 ===\n\n")
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test_int_eq()
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test_int_cmp()
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test_ptr_is_none()
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test_ptr_assign_none()
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test_ptr_eq_none()
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test_bool_logic()
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stdio.printf("\n=== eq_test 完成 ===\n")
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return 0
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