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test: Avoid a map_anon_nofork test failure on SunOS

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This test failure happened due to a signed/unsigned integer
comparison.

This bug occurred on SunOS, it may also occur on other systems that
use signed char as the default. (And cast 1-byte integer constants
to an unsigned integer.)

Fixes bug 31897; bugfix on 0.4.1.1-alpha.
This commit is contained in:
teor 2019-09-30 14:54:56 +10:00
parent 6f3f93d86c
commit 2420c8c936
2 changed files with 6 additions and 2 deletions
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3
changes/bug31897 Normal file
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@ -0,0 +1,3 @@
o Minor bugfixes (tests, SunOS):
- Avoid a map_anon_nofork test failure due to a signed/unsigned integer
comparison. Fixes bug 31897; bugfix on 0.4.1.1-alpha.

5
src/test/test_util.c
View File

@ -6182,6 +6182,7 @@ test_util_map_anon_nofork(void *arg)
* crash, or send zero. */
char *ptr = NULL;
const char TEST_VALUE = 0xd0;
size_t sz = 16384;
int pipefd[2] = {-1, -1};
unsigned inherit=0;
@ -6189,7 +6190,7 @@ test_util_map_anon_nofork(void *arg)
tor_munmap_anonymous(ptr, sz);
ptr = tor_mmap_anonymous(sz, ANONMAP_NOINHERIT, &inherit);
tt_ptr_op(ptr, OP_NE, 0);
memset(ptr, 0xd0, sz);
memset(ptr, TEST_VALUE, sz);
tt_int_op(0, OP_EQ, pipe(pipefd));
pid_t child = fork();
@ -6220,7 +6221,7 @@ test_util_map_anon_nofork(void *arg)
// noinherit isn't implemented.
tt_int_op(inherit, OP_EQ, INHERIT_RES_KEEP);
tt_int_op((int)r, OP_EQ, 1); // child should send us a byte.
tt_int_op(buf[0], OP_EQ, 0xd0); // that byte should what we set it to.
tt_int_op(buf[0], OP_EQ, TEST_VALUE); // that byte should be TEST_VALUE.
}
int ws;