1 //===-- Unittests for atol -----------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #include "src/stdlib/atol.h"
10
11 #include "utils/UnitTest/Test.h"
12
13 #include <limits.h>
14
TEST(LlvmLibcAToLTest,ValidNumbers)15 TEST(LlvmLibcAToLTest, ValidNumbers) {
16 const char *zero = "0";
17 ASSERT_EQ(__llvm_libc::atol(zero), 0l);
18
19 const char *ten = "10";
20 ASSERT_EQ(__llvm_libc::atol(ten), 10l);
21
22 const char *negative_hundred = "-100";
23 ASSERT_EQ(__llvm_libc::atol(negative_hundred), -100l);
24
25 const char *positive_thousand = "+1000";
26 ASSERT_EQ(__llvm_libc::atol(positive_thousand), 1000l);
27
28 const char *spaces_before = " 12345";
29 ASSERT_EQ(__llvm_libc::atol(spaces_before), 12345l);
30
31 const char *tabs_before = "\t\t\t\t67890";
32 ASSERT_EQ(__llvm_libc::atol(tabs_before), 67890l);
33
34 const char *letters_after = "123abc";
35 ASSERT_EQ(__llvm_libc::atol(letters_after), 123l);
36
37 const char *letters_between = "456def789";
38 ASSERT_EQ(__llvm_libc::atol(letters_between), 456l);
39
40 const char *all_together = "\t 110 times 5 = 550";
41 ASSERT_EQ(__llvm_libc::atol(all_together), 110l);
42 }
43
TEST(LlvmLibcAToLTest,NonBaseTenWholeNumbers)44 TEST(LlvmLibcAToLTest, NonBaseTenWholeNumbers) {
45 const char *hexadecimal = "0x10";
46 ASSERT_EQ(__llvm_libc::atol(hexadecimal), 0l);
47
48 const char *octal = "010";
49 ASSERT_EQ(__llvm_libc::atol(octal), 10l);
50
51 const char *decimal_point = "5.9";
52 ASSERT_EQ(__llvm_libc::atol(decimal_point), 5l);
53 }
54
TEST(LlvmLibcAToLTest,NotNumbers)55 TEST(LlvmLibcAToLTest, NotNumbers) {
56 const char *ten_as_word = "ten";
57 ASSERT_EQ(__llvm_libc::atol(ten_as_word), 0l);
58
59 const char *lots_of_letters =
60 "wtragsdhfgjykutjdyfhgnchgmjhkyurktfgjhlu;po7urtdjyfhgklyk";
61 ASSERT_EQ(__llvm_libc::atol(lots_of_letters), 0l);
62 }
63