diff options
Diffstat (limited to 't/helper/test-parse-options.c')
| -rw-r--r-- | t/helper/test-parse-options.c | 179 |
1 files changed, 179 insertions, 0 deletions
diff --git a/t/helper/test-parse-options.c b/t/helper/test-parse-options.c new file mode 100644 index 0000000000..75fe883aac --- /dev/null +++ b/t/helper/test-parse-options.c @@ -0,0 +1,179 @@ +#include "cache.h" +#include "parse-options.h" +#include "string-list.h" + +static int boolean = 0; +static int integer = 0; +static unsigned long magnitude = 0; +static timestamp_t timestamp; +static int abbrev = 7; +static int verbose = -1; /* unspecified */ +static int dry_run = 0, quiet = 0; +static char *string = NULL; +static char *file = NULL; +static int ambiguous; +static struct string_list list = STRING_LIST_INIT_NODUP; + +static struct { + int called; + const char *arg; + int unset; +} length_cb; + +static int length_callback(const struct option *opt, const char *arg, int unset) +{ + length_cb.called = 1; + length_cb.arg = arg; + length_cb.unset = unset; + + if (unset) + return 1; /* do not support unset */ + + *(int *)opt->value = strlen(arg); + return 0; +} + +static int number_callback(const struct option *opt, const char *arg, int unset) +{ + *(int *)opt->value = strtol(arg, NULL, 10); + return 0; +} + +static int collect_expect(const struct option *opt, const char *arg, int unset) +{ + struct string_list *expect; + struct string_list_item *item; + struct strbuf label = STRBUF_INIT; + const char *colon; + + if (!arg || unset) + die("malformed --expect option"); + + expect = (struct string_list *)opt->value; + colon = strchr(arg, ':'); + if (!colon) + die("malformed --expect option, lacking a colon"); + strbuf_add(&label, arg, colon - arg); + item = string_list_insert(expect, strbuf_detach(&label, NULL)); + if (item->util) + die("malformed --expect option, duplicate %s", label.buf); + item->util = (void *)arg; + return 0; +} + +__attribute__((format (printf,3,4))) +static void show(struct string_list *expect, int *status, const char *fmt, ...) +{ + struct string_list_item *item; + struct strbuf buf = STRBUF_INIT; + va_list args; + + va_start(args, fmt); + strbuf_vaddf(&buf, fmt, args); + va_end(args); + + if (!expect->nr) + printf("%s\n", buf.buf); + else { + char *colon = strchr(buf.buf, ':'); + if (!colon) + die("malformed output format, output lacking colon: %s", fmt); + *colon = '\0'; + item = string_list_lookup(expect, buf.buf); + *colon = ':'; + if (!item) + ; /* not among entries being checked */ + else { + if (strcmp((const char *)item->util, buf.buf)) { + printf("-%s\n", (char *)item->util); + printf("+%s\n", buf.buf); + *status = 1; + } + } + } + strbuf_release(&buf); +} + +int cmd_main(int argc, const char **argv) +{ + const char *prefix = "prefix/"; + const char *usage[] = { + "test-parse-options <options>", + NULL + }; + struct string_list expect = STRING_LIST_INIT_NODUP; + struct option options[] = { + OPT_BOOL(0, "yes", &boolean, "get a boolean"), + OPT_BOOL('D', "no-doubt", &boolean, "begins with 'no-'"), + { OPTION_SET_INT, 'B', "no-fear", &boolean, NULL, + "be brave", PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL, 1 }, + OPT_COUNTUP('b', "boolean", &boolean, "increment by one"), + OPT_BIT('4', "or4", &boolean, + "bitwise-or boolean with ...0100", 4), + OPT_NEGBIT(0, "neg-or4", &boolean, "same as --no-or4", 4), + OPT_GROUP(""), + OPT_INTEGER('i', "integer", &integer, "get a integer"), + OPT_INTEGER('j', NULL, &integer, "get a integer, too"), + OPT_MAGNITUDE('m', "magnitude", &magnitude, "get a magnitude"), + OPT_SET_INT(0, "set23", &integer, "set integer to 23", 23), + OPT_DATE('t', NULL, ×tamp, "get timestamp of <time>"), + OPT_CALLBACK('L', "length", &integer, "str", + "get length of <str>", length_callback), + OPT_FILENAME('F', "file", &file, "set file to <file>"), + OPT_GROUP("String options"), + OPT_STRING('s', "string", &string, "string", "get a string"), + OPT_STRING(0, "string2", &string, "str", "get another string"), + OPT_STRING(0, "st", &string, "st", "get another string (pervert ordering)"), + OPT_STRING('o', NULL, &string, "str", "get another string"), + OPT_NOOP_NOARG(0, "obsolete"), + OPT_STRING_LIST(0, "list", &list, "str", "add str to list"), + OPT_GROUP("Magic arguments"), + OPT_ARGUMENT("quux", "means --quux"), + OPT_NUMBER_CALLBACK(&integer, "set integer to NUM", + number_callback), + { OPTION_COUNTUP, '+', NULL, &boolean, NULL, "same as -b", + PARSE_OPT_NOARG | PARSE_OPT_NONEG | PARSE_OPT_NODASH }, + { OPTION_COUNTUP, 0, "ambiguous", &ambiguous, NULL, + "positive ambiguity", PARSE_OPT_NOARG | PARSE_OPT_NONEG }, + { OPTION_COUNTUP, 0, "no-ambiguous", &ambiguous, NULL, + "negative ambiguity", PARSE_OPT_NOARG | PARSE_OPT_NONEG }, + OPT_GROUP("Standard options"), + OPT__ABBREV(&abbrev), + OPT__VERBOSE(&verbose, "be verbose"), + OPT__DRY_RUN(&dry_run, "dry run"), + OPT__QUIET(&quiet, "be quiet"), + OPT_CALLBACK(0, "expect", &expect, "string", + "expected output in the variable dump", + collect_expect), + OPT_END(), + }; + int i; + int ret = 0; + + argc = parse_options(argc, (const char **)argv, prefix, options, usage, 0); + + if (length_cb.called) { + const char *arg = length_cb.arg; + int unset = length_cb.unset; + show(&expect, &ret, "Callback: \"%s\", %d", + (arg ? arg : "not set"), unset); + } + show(&expect, &ret, "boolean: %d", boolean); + show(&expect, &ret, "integer: %d", integer); + show(&expect, &ret, "magnitude: %lu", magnitude); + show(&expect, &ret, "timestamp: %"PRItime, timestamp); + show(&expect, &ret, "string: %s", string ? string : "(not set)"); + show(&expect, &ret, "abbrev: %d", abbrev); + show(&expect, &ret, "verbose: %d", verbose); + show(&expect, &ret, "quiet: %d", quiet); + show(&expect, &ret, "dry run: %s", dry_run ? "yes" : "no"); + show(&expect, &ret, "file: %s", file ? file : "(not set)"); + + for (i = 0; i < list.nr; i++) + show(&expect, &ret, "list: %s", list.items[i].string); + + for (i = 0; i < argc; i++) + show(&expect, &ret, "arg %02d: %s", i, argv[i]); + + return ret; +} |