Merge branch 'jc/test-parse-options-expect'

t0040 had too many unnecessary repetitions in its test data.  Teach
test-parse-options program so that a caller can tell what it
expects in its output, so that these repetitions can be cleaned up.

* jc/test-parse-options-expect:
  t0040: convert a few tests to use test-parse-options --expect
  t0040: remove unused test helpers
  test-parse-options: --expect=<string> option to simplify tests
  test-parse-options: fix output when callback option fails
This commit is contained in:
Junio C Hamano 2016-05-23 14:54:32 -07:00
commit 2997ea960f
2 changed files with 93 additions and 60 deletions

View File

@ -14,10 +14,18 @@ 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)
{
printf("Callback: \"%s\", %d\n",
(arg ? arg : "not set"), unset);
length_cb.called = 1;
length_cb.arg = arg;
length_cb.unset = unset;
if (unset)
return 1; /* do not support unset */
@ -31,6 +39,61 @@ static int number_callback(const struct option *opt, const char *arg, int unset)
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/";
@ -38,6 +101,7 @@ int main(int argc, char **argv)
"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-'"),
@ -78,28 +142,38 @@ int main(int argc, char **argv)
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);
printf("boolean: %d\n", boolean);
printf("integer: %d\n", integer);
printf("magnitude: %lu\n", magnitude);
printf("timestamp: %lu\n", timestamp);
printf("string: %s\n", string ? string : "(not set)");
printf("abbrev: %d\n", abbrev);
printf("verbose: %d\n", verbose);
printf("quiet: %d\n", quiet);
printf("dry run: %s\n", dry_run ? "yes" : "no");
printf("file: %s\n", file ? file : "(not set)");
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++)
printf("list: %s\n", list.items[i].string);
show(&expect, &ret, "list: %s", list.items[i].string);
for (i = 0; i < argc; i++)
printf("arg %02d: %s\n", i, argv[i]);
show(&expect, &ret, "arg %02d: %s", i, argv[i]);
return 0;
return ret;
}

View File

@ -45,6 +45,7 @@ Standard options
-v, --verbose be verbose
-n, --dry-run dry run
-q, --quiet be quiet
--expect <string> expected output in the variable dump
EOF
@ -56,52 +57,12 @@ test_expect_success 'test help' '
mv expect expect.err
cat >expect.template <<\EOF
boolean: 0
integer: 0
magnitude: 0
timestamp: 0
string: (not set)
abbrev: 7
verbose: -1
quiet: 0
dry run: no
file: (not set)
EOF
check() {
check () {
what="$1" &&
shift &&
expect="$1" &&
shift &&
sed "s/^$what .*/$what $expect/" <expect.template >expect &&
test-parse-options $* >output 2>output.err &&
test_must_be_empty output.err &&
test_cmp expect output
}
check_i18n() {
what="$1" &&
shift &&
expect="$1" &&
shift &&
sed "s/^$what .*/$what $expect/" <expect.template >expect &&
test-parse-options $* >output 2>output.err &&
test_must_be_empty output.err &&
test_i18ncmp expect output
}
check_unknown() {
case "$1" in
--*)
echo error: unknown option \`${1#--}\' >expect ;;
-*)
echo error: unknown switch \`${1#-}\' >expect ;;
esac &&
cat expect.err >>expect &&
test_must_fail test-parse-options $* >output 2>output.err &&
test_must_be_empty output &&
test_cmp expect output.err
test-parse-options --expect="$what $expect" "$@"
}
check_unknown_i18n() {
@ -356,9 +317,7 @@ test_expect_success 'OPT_CALLBACK() and OPT_BIT() work' '
test_cmp expect output
'
cat >expect <<\EOF
Callback: "not set", 1
EOF
>expect
test_expect_success 'OPT_CALLBACK() and callback errors work' '
test_must_fail test-parse-options --no-length >output 2>output.err &&