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selftests/bpf: Move and extend ASSERT_xxx() testing macros

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Move existing ASSERT_xxx() macros out of btf_write selftest into test_progs.h
to use across all selftests. Also expand a set of macros for typical cases.

Now there are the following macros:
  - ASSERT_EQ() -- check for equality of two integers;
  - ASSERT_STREQ() -- check for equality of two C strings;
  - ASSERT_OK() -- check for successful (zero) return result;
  - ASSERT_ERR() -- check for unsuccessful (non-zero) return result;
  - ASSERT_NULL() -- check for NULL pointer;
  - ASSERT_OK_PTR() -- check for a valid pointer;
  - ASSERT_ERR_PTR() -- check for NULL or negative error encoded in a pointer.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/20200929043046.1324350-2-andriin@fb.com
This commit is contained in:
Andrii Nakryiko 2020-09-28 21:30:44 -07:00 committed by Alexei Starovoitov
parent f970cbcdcd
commit 22ba363516
2 changed files with 63 additions and 34 deletions
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34
tools/testing/selftests/bpf/prog_tests/btf_write.c
View File

@ -3,40 +3,6 @@
#include <test_progs.h>
#include <bpf/btf.h>
#define ASSERT_EQ(actual, expected, name) ({ \
typeof(actual) ___act = (actual); \
typeof(expected) ___exp = (expected); \
bool ___ok = ___act == ___exp; \
CHECK(!___ok, (name), \
"unexpected %s: actual %lld != expected %lld\n", \
(name), (long long)(___act), (long long)(___exp)); \
___ok; \
})
#define ASSERT_STREQ(actual, expected, name) ({ \
const char *___act = actual; \
const char *___exp = expected; \
bool ___ok = strcmp(___act, ___exp) == 0; \
CHECK(!___ok, (name), \
"unexpected %s: actual '%s' != expected '%s'\n", \
(name), ___act, ___exp); \
___ok; \
})
#define ASSERT_OK(res, name) ({ \
long long ___res = (res); \
bool ___ok = ___res == 0; \
CHECK(!___ok, (name), "unexpected error: %lld\n", ___res); \
___ok; \
})
#define ASSERT_ERR(res, name) ({ \
long long ___res = (res); \
bool ___ok = ___res < 0; \
CHECK(!___ok, (name), "unexpected success: %lld\n", ___res); \
___ok; \
})
static int duration = 0;
void test_btf_write() {

63
tools/testing/selftests/bpf/test_progs.h
View File

@ -130,6 +130,69 @@ extern int test__join_cgroup(const char *path);
#define CHECK_ATTR(condition, tag, format...) \
_CHECK(condition, tag, tattr.duration, format)
#define ASSERT_EQ(actual, expected, name) ({ \
static int duration = 0; \
typeof(actual) ___act = (actual); \
typeof(expected) ___exp = (expected); \
bool ___ok = ___act == ___exp; \
CHECK(!___ok, (name), \
"unexpected %s: actual %lld != expected %lld\n", \
(name), (long long)(___act), (long long)(___exp)); \
___ok; \
})
#define ASSERT_STREQ(actual, expected, name) ({ \
static int duration = 0; \
const char *___act = actual; \
const char *___exp = expected; \
bool ___ok = strcmp(___act, ___exp) == 0; \
CHECK(!___ok, (name), \
"unexpected %s: actual '%s' != expected '%s'\n", \
(name), ___act, ___exp); \
___ok; \
})
#define ASSERT_OK(res, name) ({ \
static int duration = 0; \
long long ___res = (res); \
bool ___ok = ___res == 0; \
CHECK(!___ok, (name), "unexpected error: %lld\n", ___res); \
___ok; \
})
#define ASSERT_ERR(res, name) ({ \
static int duration = 0; \
long long ___res = (res); \
bool ___ok = ___res < 0; \
CHECK(!___ok, (name), "unexpected success: %lld\n", ___res); \
___ok; \
})
#define ASSERT_NULL(ptr, name) ({ \
static int duration = 0; \
const void *___res = (ptr); \
bool ___ok = !___res; \
CHECK(!___ok, (name), "unexpected pointer: %p\n", ___res); \
___ok; \
})
#define ASSERT_OK_PTR(ptr, name) ({ \
static int duration = 0; \
const void *___res = (ptr); \
bool ___ok = !IS_ERR_OR_NULL(___res); \
CHECK(!___ok, (name), \
"unexpected error: %ld\n", PTR_ERR(___res)); \
___ok; \
})
#define ASSERT_ERR_PTR(ptr, name) ({ \
static int duration = 0; \
const void *___res = (ptr); \
bool ___ok = IS_ERR(___res) \
CHECK(!___ok, (name), "unexpected pointer: %p\n", ___res); \
___ok; \
})
static inline __u64 ptr_to_u64(const void *ptr)
{
return (__u64) (unsigned long) ptr;