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-rw-r--r--t/helper/test-parse-options.c179
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..8a1235d03e
--- /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 unsigned long 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;
+
+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 main(int argc, 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, &timestamp, "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: %lu", 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;
+}