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A few of these tests were inspired by those in glibc. The syntax for invoking test_getopt is a bit funky, but it's necessary so that the CPP can parse the arguments correctly. Signed-off-by: Sean Anderson <seanga2@gmail.com>
123 lines
3.1 KiB
C
123 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2020 Sean Anderson <seanga2@gmail.com>
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*
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* Portions of these tests were inspired by glibc's posix/bug-getopt1.c and
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* posix/tst-getopt-cancel.c
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*/
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#include <common.h>
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#include <getopt.h>
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#include <test/lib.h>
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#include <test/test.h>
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#include <test/ut.h>
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static int do_test_getopt(struct unit_test_state *uts, int line,
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struct getopt_state *gs, const char *optstring,
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int args, char *argv[], int expected_count,
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int expected[])
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{
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int opt;
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getopt_init_state(gs);
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for (int i = 0; i < expected_count; i++) {
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opt = getopt_silent(gs, args, argv, optstring);
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if (expected[i] != opt) {
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/*
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* Fudge the line number so we can tell which test
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* failed
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*/
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ut_failf(uts, __FILE__, line, __func__,
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"expected[i] == getopt()",
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"Expected '%c' (%d) with i=%d, got '%c' (%d)",
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expected[i], expected[i], i, opt, opt);
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return CMD_RET_FAILURE;
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}
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}
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opt = getopt_silent(gs, args, argv, optstring);
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if (opt != -1) {
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ut_failf(uts, __FILE__, line, __func__,
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"getopt() != -1",
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"Expected -1, got '%c' (%d)", opt, opt);
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return CMD_RET_FAILURE;
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}
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return 0;
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}
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#define test_getopt(optstring, argv, expected) do { \
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int ret = do_test_getopt(uts, __LINE__, &gs, optstring, \
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ARRAY_SIZE(argv) - 1, argv, \
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ARRAY_SIZE(expected), expected); \
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if (ret) \
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return ret; \
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} while (0)
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static int lib_test_getopt(struct unit_test_state *uts)
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{
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struct getopt_state gs;
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/* Happy path */
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test_getopt("ab:c",
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((char *[]){ "program", "-cb", "x", "-a", "foo", 0 }),
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((int []){ 'c', 'b', 'a' }));
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ut_asserteq(4, gs.index);
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/* Make sure we pick up the optional argument */
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test_getopt("a::b:c",
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((char *[]){ "program", "-cbx", "-a", "foo", 0 }),
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((int []){ 'c', 'b', 'a' }));
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ut_asserteq(4, gs.index);
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/* Test required arguments */
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test_getopt("a:b", ((char *[]){ "program", "-a", 0 }),
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((int []){ ':' }));
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ut_asserteq('a', gs.opt);
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test_getopt("a:b", ((char *[]){ "program", "-b", "-a", 0 }),
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((int []){ 'b', ':' }));
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ut_asserteq('a', gs.opt);
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/* Test invalid arguments */
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test_getopt("ab:c", ((char *[]){ "program", "-d", 0 }),
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((int []){ '?' }));
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ut_asserteq('d', gs.opt);
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/* Test arg */
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test_getopt("a::b:c",
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((char *[]){ "program", "-a", 0 }),
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((int []){ 'a' }));
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ut_asserteq(2, gs.index);
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ut_assertnull(gs.arg);
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test_getopt("a::b:c",
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((char *[]){ "program", "-afoo", 0 }),
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((int []){ 'a' }));
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ut_asserteq(2, gs.index);
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ut_assertnonnull(gs.arg);
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ut_asserteq_str("foo", gs.arg);
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test_getopt("a::b:c",
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((char *[]){ "program", "-a", "foo", 0 }),
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((int []){ 'a' }));
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ut_asserteq(3, gs.index);
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ut_assertnonnull(gs.arg);
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ut_asserteq_str("foo", gs.arg);
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test_getopt("a::b:c",
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((char *[]){ "program", "-bfoo", 0 }),
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((int []){ 'b' }));
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ut_asserteq(2, gs.index);
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ut_assertnonnull(gs.arg);
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ut_asserteq_str("foo", gs.arg);
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test_getopt("a::b:c",
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((char *[]){ "program", "-b", "foo", 0 }),
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((int []){ 'b' }));
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ut_asserteq(3, gs.index);
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ut_assertnonnull(gs.arg);
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ut_asserteq_str("foo", gs.arg);
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return 0;
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}
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LIB_TEST(lib_test_getopt, 0);
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