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msvcrt/tests: Add tests about allocation of environment entries.

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Signed-off-by: Eric Pouech <epouech@codeweavers.com>
This commit is contained in:
Eric Pouech 2023-11-10 09:13:28 +01:00 committed by Alexandre Julliard
parent b6d4be61eb
commit 8b50afed27
1 changed files with 44 additions and 0 deletions
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44
dlls/msvcrt/tests/environ.c
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@ -83,6 +83,15 @@ static void test_system(void)
ok(ret == 0, "Expected system to return 0, got %d\n", ret);
}
static unsigned env_get_entry_countA( char **env )
{
unsigned count;
if (!env) return 0;
for (count = 0; env[count] != NULL; count++) {}
return count;
}
static wchar_t *env_get_valueW( wchar_t **envp, const wchar_t *var )
{
unsigned i;
@ -255,6 +264,9 @@ static void test_environment_manipulation(void)
char buf[256];
errno_t ret;
size_t len;
unsigned count;
char* first;
char* second;
ok( _putenv("cat=") == 0, "_putenv failed on deletion of nonexistent environment variable\n" );
ok( _putenv("cat=dog") == 0, "failed setting cat=dog\n" );
@ -322,6 +334,38 @@ static void test_environment_manipulation(void)
ok( !buf[0], "buf = %s\n", buf);
ok( errno == 0xdeadbeef, "errno = %d\n", errno);
}
/* test stability of _environ[] pointers */
ok( _putenv( "__winetest_cat=" ) == 0, "Couldn't reset env var\n" );
ok( _putenv( "__winetest_dog=" ) == 0, "Couldn't reset env var\n" );
count = env_get_entry_countA( *p_environ );
ok( _putenv( "__winetest_cat=mew") == 0, "Couldn't set env var\n" );
ok( !strcmp( (*p_environ)[count], "__winetest_cat=mew"), "Unexpected env var value\n" );
first = (*p_environ)[count];
ok( getenv("__winetest_cat") == strchr( (*p_environ)[count], '=') + 1, "Expected getenv() to return pointer inside _environ[] entry\n" );
ok( _putenv( "__winetest_dog=bark" ) == 0, "Couldn't set env var\n" );
ok( !strcmp( (*p_environ)[count + 1], "__winetest_dog=bark" ), "Unexpected env var value\n" );
ok( getenv( "__winetest_dog" ) == strchr( (*p_environ)[count + 1], '=' ) + 1, "Expected getenv() to return pointer inside _environ[] entry\n" );
todo_wine
ok( first == (*p_environ)[count], "Expected stability of _environ[count] pointer\n" );
second = (*p_environ)[count + 1];
ok( count + 2 == env_get_entry_countA( *p_environ ), "Unexpected count\n" );
ok( _putenv( "__winetest_cat=purr" ) == 0, "Couldn't set env var\n" );
ok( !strcmp( (*p_environ)[count], "__winetest_cat=purr" ), "Unexpected env var value\n" );
ok( getenv( "__winetest_cat" ) == strchr( (*p_environ)[count], '=' ) + 1, "Expected getenv() to return pointer inside _environ[] entry\n" );
todo_wine
ok( second == (*p_environ)[count + 1], "Expected stability of _environ[count] pointer\n" );
ok( !strcmp( (*p_environ)[count + 1], "__winetest_dog=bark" ), "Couldn't get env var value\n" );
ok( getenv( "__winetest_dog" ) == strchr( (*p_environ)[count + 1], '=' ) + 1, "Expected getenv() to return pointer inside _environ[] entry\n" );
ok( count + 2 == env_get_entry_countA( *p_environ ), "Unexpected count\n" );
ok( _putenv( "__winetest_cat=" ) == 0, "Couldn't reset env vat\n" );
todo_wine
ok( second == (*p_environ)[count], "Expected _environ[count] to be second\n" );
ok( !strcmp( (*p_environ)[count], "__winetest_dog=bark" ), "Unexpected env var value\n" );
ok( count + 1 == env_get_entry_countA( *p_environ ), "Unexpected count\n" );
ok( _putenv( "__winetest_dog=" ) == 0, "Couldn't reset env var\n" );
ok( count == env_get_entry_countA( *p_environ ), "Unexpected count\n" );
}
START_TEST(environ)