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t0060: verify that basename() and dirname() work as expected

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Unfortunately, some libgen implementations yield outcomes different
from what Git expects. For example, mingw-w64-crt provides a basename()
function, that shortens `path0/` to `path`!

So let's verify that the basename() and dirname() functions we use
conform to what Git expects.

Derived-from-code-by: Ramsay Jones <ramsay@ramsayjones.plus.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Johannes Schindelin 2016-01-12 08:57:57 +01:00 committed by Junio C Hamano
parent 824682ab51
commit 7d1aaa684d
2 changed files with 169 additions and 0 deletions
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3
t/t0060-path-utils.sh
View File

@ -59,6 +59,9 @@ case $(uname -s) in
;;
esac
test_expect_success basename 'test-path-utils basename'
test_expect_success dirname 'test-path-utils dirname'
norm_path "" ""
norm_path . ""
norm_path ./ ""

166
test-path-utils.c
View File

@ -39,6 +39,166 @@ static void normalize_argv_string(const char **var, const char *input)
die("Bad value: %s\n", input);
}
struct test_data {
const char *from; /* input: transform from this ... */
const char *to; /* output: ... to this. */
};
static int test_function(struct test_data *data, char *(*func)(char *input),
const char *funcname)
{
int failed = 0, i;
char buffer[1024];
char *to;
for (i = 0; data[i].to; i++) {
if (!data[i].from)
to = func(NULL);
else {
strcpy(buffer, data[i].from);
to = func(buffer);
}
if (strcmp(to, data[i].to)) {
error("FAIL: %s(%s) => '%s' != '%s'\n",
funcname, data[i].from, to, data[i].to);
failed = 1;
}
}
return failed;
}
static struct test_data basename_data[] = {
/* --- POSIX type paths --- */
{ NULL, "." },
{ "", "." },
{ ".", "." },
{ "..", ".." },
{ "/", "/" },
#if defined(__CYGWIN__) && !defined(NO_LIBGEN_H)
{ "//", "//" },
{ "///", "//" },
{ "////", "//" },
#else
{ "//", "/" },
{ "///", "/" },
{ "////", "/" },
#endif
{ "usr", "usr" },
{ "/usr", "usr" },
{ "/usr/", "usr" },
{ "/usr//", "usr" },
{ "/usr/lib", "lib" },
{ "usr/lib", "lib" },
{ "usr/lib///", "lib" },
#if defined(__MINGW32__) || defined(_MSC_VER)
/* --- win32 type paths --- */
{ "\\usr", "usr" },
{ "\\usr\\", "usr" },
{ "\\usr\\\\", "usr" },
{ "\\usr\\lib", "lib" },
{ "usr\\lib", "lib" },
{ "usr\\lib\\\\\\", "lib" },
{ "C:/usr", "usr" },
{ "C:/usr", "usr" },
{ "C:/usr/", "usr" },
{ "C:/usr//", "usr" },
{ "C:/usr/lib", "lib" },
{ "C:usr/lib", "lib" },
{ "C:usr/lib///", "lib" },
{ "C:", "." },
{ "C:a", "a" },
{ "C:/", "/" },
{ "C:///", "/" },
#if defined(NO_LIBGEN_H)
{ "\\", "\\" },
{ "\\\\", "\\" },
{ "\\\\\\", "\\" },
#else
/* win32 platform variations: */
#if defined(__MINGW32__)
{ "\\", "/" },
{ "\\\\", "/" },
{ "\\\\\\", "/" },
#endif
#if defined(_MSC_VER)
{ "\\", "\\" },
{ "\\\\", "\\" },
{ "\\\\\\", "\\" },
#endif
#endif
#endif
{ NULL, NULL }
};
static struct test_data dirname_data[] = {
/* --- POSIX type paths --- */
{ NULL, "." },
{ "", "." },
{ ".", "." },
{ "..", "." },
{ "/", "/" },
{ "//", "//" },
#if defined(__CYGWIN__) && !defined(NO_LIBGEN_H)
{ "///", "//" },
{ "////", "//" },
#else
{ "///", "/" },
{ "////", "/" },
#endif
{ "usr", "." },
{ "/usr", "/" },
{ "/usr/", "/" },
{ "/usr//", "/" },
{ "/usr/lib", "/usr" },
{ "usr/lib", "usr" },
{ "usr/lib///", "usr" },
#if defined(__MINGW32__) || defined(_MSC_VER)
/* --- win32 type paths --- */
{ "\\", "\\" },
{ "\\\\", "\\\\" },
{ "\\usr", "\\" },
{ "\\usr\\", "\\" },
{ "\\usr\\\\", "\\" },
{ "\\usr\\lib", "\\usr" },
{ "usr\\lib", "usr" },
{ "usr\\lib\\\\\\", "usr" },
{ "C:a", "C:." },
{ "C:/", "C:/" },
{ "C:///", "C:/" },
{ "C:/usr", "C:/" },
{ "C:/usr/", "C:/" },
{ "C:/usr//", "C:/" },
{ "C:/usr/lib", "C:/usr" },
{ "C:usr/lib", "C:usr" },
{ "C:usr/lib///", "C:usr" },
{ "\\\\\\", "\\" },
{ "\\\\\\\\", "\\" },
#if defined(NO_LIBGEN_H)
{ "C:", "C:." },
#else
/* win32 platform variations: */
#if defined(__MINGW32__)
/* the following is clearly wrong ... */
{ "C:", "." },
#endif
#if defined(_MSC_VER)
{ "C:", "C:." },
#endif
#endif
#endif
{ NULL, NULL }
};
int main(int argc, char **argv)
{
if (argc == 3 && !strcmp(argv[1], "normalize_path_copy")) {
@ -133,6 +293,12 @@ int main(int argc, char **argv)
return 0;
}
if (argc == 2 && !strcmp(argv[1], "basename"))
return test_function(basename_data, basename, argv[1]);
if (argc == 2 && !strcmp(argv[1], "dirname"))
return test_function(dirname_data, dirname, argv[1]);
fprintf(stderr, "%s: unknown function name: %s\n", argv[0],
argv[1] ? argv[1] : "(there was none)");
return 1;