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 ---
(no changes since v1)
test/lib/Makefile | 1 + test/lib/getopt.c | 123 ++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 124 insertions(+) create mode 100644 test/lib/getopt.c
diff --git a/test/lib/Makefile b/test/lib/Makefile index 22236f8587..3140c2dad7 100644 --- a/test/lib/Makefile +++ b/test/lib/Makefile @@ -13,3 +13,4 @@ obj-$(CONFIG_ERRNO_STR) += test_errno_str.o obj-$(CONFIG_UT_LIB_ASN1) += asn1.o obj-$(CONFIG_UT_LIB_RSA) += rsa.o obj-$(CONFIG_AES) += test_aes.o +obj-$(CONFIG_GETOPT) += getopt.o diff --git a/test/lib/getopt.c b/test/lib/getopt.c new file mode 100644 index 0000000000..3c68b93c8a --- /dev/null +++ b/test/lib/getopt.c @@ -0,0 +1,123 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2020 Sean Anderson seanga2@gmail.com + * + * Portions of these tests were inspired by glibc's posix/bug-getopt1.c and + * posix/tst-getopt-cancel.c + */ + +#include <common.h> +#include <getopt.h> +#include <test/lib.h> +#include <test/test.h> +#include <test/ut.h> + +static int do_test_getopt(struct unit_test_state *uts, int line, + struct getopt_state *gs, const char *optstring, + int args, char *argv[], int expected_count, + int expected[]) +{ + int opt; + + getopt_init_state(gs); + for (int i = 0; i < expected_count; i++) { + opt = getopt_silent(gs, args, argv, optstring); + if (expected[i] != opt) { + /* + * Fudge the line number so we can tell which test + * failed + */ + ut_failf(uts, __FILE__, line, __func__, + "expected[i] == getopt()", + "Expected '%c' (%d) with i=%d, got '%c' (%d)", + expected[i], expected[i], i, opt, opt); + return CMD_RET_FAILURE; + } + } + + opt = getopt_silent(gs, args, argv, optstring); + if (opt != -1) { + ut_failf(uts, __FILE__, line, __func__, + "getopt() != -1", + "Expected -1, got '%c' (%d)", opt, opt); + return CMD_RET_FAILURE; + } + + return 0; +} + +#define test_getopt(optstring, argv, expected) do { \ + int ret = do_test_getopt(uts, __LINE__, &gs, optstring, \ + ARRAY_SIZE(argv) - 1, argv, \ + ARRAY_SIZE(expected), expected); \ + if (ret) \ + return ret; \ +} while (0) + +static int lib_test_getopt(struct unit_test_state *uts) +{ + struct getopt_state gs; + + /* Happy path */ + test_getopt("ab:c", + ((char *[]){ "program", "-cb", "x", "-a", "foo", 0 }), + ((int []){ 'c', 'b', 'a' })); + ut_asserteq(4, gs.index); + + /* Make sure we pick up the optional argument */ + test_getopt("a::b:c", + ((char *[]){ "program", "-cbx", "-a", "foo", 0 }), + ((int []){ 'c', 'b', 'a' })); + ut_asserteq(4, gs.index); + + /* Test required arguments */ + test_getopt("a:b", ((char *[]){ "program", "-a", 0 }), + ((int []){ ':' })); + ut_asserteq('a', gs.opt); + test_getopt("a:b", ((char *[]){ "program", "-b", "-a", 0 }), + ((int []){ 'b', ':' })); + ut_asserteq('a', gs.opt); + + /* Test invalid arguments */ + test_getopt("ab:c", ((char *[]){ "program", "-d", 0 }), + ((int []){ '?' })); + ut_asserteq('d', gs.opt); + + /* Test arg */ + test_getopt("a::b:c", + ((char *[]){ "program", "-a", 0 }), + ((int []){ 'a' })); + ut_asserteq(2, gs.index); + ut_assertnull(gs.arg); + + test_getopt("a::b:c", + ((char *[]){ "program", "-afoo", 0 }), + ((int []){ 'a' })); + ut_asserteq(2, gs.index); + ut_assertnonnull(gs.arg); + ut_asserteq_str("foo", gs.arg); + + test_getopt("a::b:c", + ((char *[]){ "program", "-a", "foo", 0 }), + ((int []){ 'a' })); + ut_asserteq(3, gs.index); + ut_assertnonnull(gs.arg); + ut_asserteq_str("foo", gs.arg); + + test_getopt("a::b:c", + ((char *[]){ "program", "-bfoo", 0 }), + ((int []){ 'b' })); + ut_asserteq(2, gs.index); + ut_assertnonnull(gs.arg); + ut_asserteq_str("foo", gs.arg); + + test_getopt("a::b:c", + ((char *[]){ "program", "-b", "foo", 0 }), + ((int []){ 'b' })); + ut_asserteq(3, gs.index); + ut_assertnonnull(gs.arg); + ut_asserteq_str("foo", gs.arg); + + return 0; +} +LIB_TEST(lib_test_getopt, 0);