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fbc33df1 SA |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | /* | |
3 | * Copyright (C) 2020 Sean Anderson <seanga2@gmail.com> | |
4 | * | |
5 | * Portions of these tests were inspired by glibc's posix/bug-getopt1.c and | |
6 | * posix/tst-getopt-cancel.c | |
7 | */ | |
8 | ||
fbc33df1 SA |
9 | #include <getopt.h> |
10 | #include <test/lib.h> | |
11 | #include <test/test.h> | |
12 | #include <test/ut.h> | |
13 | ||
14 | static int do_test_getopt(struct unit_test_state *uts, int line, | |
15 | struct getopt_state *gs, const char *optstring, | |
16 | int args, char *argv[], int expected_count, | |
17 | int expected[]) | |
18 | { | |
19 | int opt; | |
20 | ||
21 | getopt_init_state(gs); | |
22 | for (int i = 0; i < expected_count; i++) { | |
23 | opt = getopt_silent(gs, args, argv, optstring); | |
24 | if (expected[i] != opt) { | |
25 | /* | |
26 | * Fudge the line number so we can tell which test | |
27 | * failed | |
28 | */ | |
29 | ut_failf(uts, __FILE__, line, __func__, | |
30 | "expected[i] == getopt()", | |
31 | "Expected '%c' (%d) with i=%d, got '%c' (%d)", | |
32 | expected[i], expected[i], i, opt, opt); | |
33 | return CMD_RET_FAILURE; | |
34 | } | |
35 | } | |
36 | ||
37 | opt = getopt_silent(gs, args, argv, optstring); | |
38 | if (opt != -1) { | |
39 | ut_failf(uts, __FILE__, line, __func__, | |
40 | "getopt() != -1", | |
41 | "Expected -1, got '%c' (%d)", opt, opt); | |
42 | return CMD_RET_FAILURE; | |
43 | } | |
44 | ||
45 | return 0; | |
46 | } | |
47 | ||
48 | #define test_getopt(optstring, argv, expected) do { \ | |
49 | int ret = do_test_getopt(uts, __LINE__, &gs, optstring, \ | |
50 | ARRAY_SIZE(argv) - 1, argv, \ | |
51 | ARRAY_SIZE(expected), expected); \ | |
52 | if (ret) \ | |
53 | return ret; \ | |
54 | } while (0) | |
55 | ||
56 | static int lib_test_getopt(struct unit_test_state *uts) | |
57 | { | |
58 | struct getopt_state gs; | |
59 | ||
60 | /* Happy path */ | |
61 | test_getopt("ab:c", | |
62 | ((char *[]){ "program", "-cb", "x", "-a", "foo", 0 }), | |
63 | ((int []){ 'c', 'b', 'a' })); | |
64 | ut_asserteq(4, gs.index); | |
65 | ||
66 | /* Make sure we pick up the optional argument */ | |
67 | test_getopt("a::b:c", | |
68 | ((char *[]){ "program", "-cbx", "-a", "foo", 0 }), | |
69 | ((int []){ 'c', 'b', 'a' })); | |
70 | ut_asserteq(4, gs.index); | |
71 | ||
72 | /* Test required arguments */ | |
73 | test_getopt("a:b", ((char *[]){ "program", "-a", 0 }), | |
74 | ((int []){ ':' })); | |
75 | ut_asserteq('a', gs.opt); | |
76 | test_getopt("a:b", ((char *[]){ "program", "-b", "-a", 0 }), | |
77 | ((int []){ 'b', ':' })); | |
78 | ut_asserteq('a', gs.opt); | |
79 | ||
80 | /* Test invalid arguments */ | |
81 | test_getopt("ab:c", ((char *[]){ "program", "-d", 0 }), | |
82 | ((int []){ '?' })); | |
83 | ut_asserteq('d', gs.opt); | |
84 | ||
85 | /* Test arg */ | |
86 | test_getopt("a::b:c", | |
87 | ((char *[]){ "program", "-a", 0 }), | |
88 | ((int []){ 'a' })); | |
89 | ut_asserteq(2, gs.index); | |
90 | ut_assertnull(gs.arg); | |
91 | ||
92 | test_getopt("a::b:c", | |
93 | ((char *[]){ "program", "-afoo", 0 }), | |
94 | ((int []){ 'a' })); | |
95 | ut_asserteq(2, gs.index); | |
96 | ut_assertnonnull(gs.arg); | |
97 | ut_asserteq_str("foo", gs.arg); | |
98 | ||
99 | test_getopt("a::b:c", | |
100 | ((char *[]){ "program", "-a", "foo", 0 }), | |
101 | ((int []){ 'a' })); | |
102 | ut_asserteq(3, gs.index); | |
103 | ut_assertnonnull(gs.arg); | |
104 | ut_asserteq_str("foo", gs.arg); | |
105 | ||
106 | test_getopt("a::b:c", | |
107 | ((char *[]){ "program", "-bfoo", 0 }), | |
108 | ((int []){ 'b' })); | |
109 | ut_asserteq(2, gs.index); | |
110 | ut_assertnonnull(gs.arg); | |
111 | ut_asserteq_str("foo", gs.arg); | |
112 | ||
113 | test_getopt("a::b:c", | |
114 | ((char *[]){ "program", "-b", "foo", 0 }), | |
115 | ((int []){ 'b' })); | |
116 | ut_asserteq(3, gs.index); | |
117 | ut_assertnonnull(gs.arg); | |
118 | ut_asserteq_str("foo", gs.arg); | |
119 | ||
120 | return 0; | |
121 | } | |
122 | LIB_TEST(lib_test_getopt, 0); |