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authorLennart Poettering <lennart@poettering.net>2015-01-17 02:36:23 +0100
committerLennart Poettering <lennart@poettering.net>2015-01-19 20:24:09 +0100
commitff6a74609b7c925834da1373d3adb9642ca51422 (patch)
tree23fc620efd4a35c0d2d138a1d887d6c8465253ff /src/test/test-util.c
parent47bc4fd86d1119945be3d0217f3795c901b7ffff (diff)
import-raw: when downloading raw images, generate sparse files if we can
Diffstat (limited to 'src/test/test-util.c')
-rw-r--r--src/test/test-util.c37
1 files changed, 37 insertions, 0 deletions
diff --git a/src/test/test-util.c b/src/test/test-util.c
index 4bb51545b..0c0d2f67f 100644
--- a/src/test/test-util.c
+++ b/src/test/test-util.c
@@ -1464,6 +1464,42 @@ static void test_uid_ptr(void) {
assert_se(PTR_TO_UID(UID_TO_PTR(1000)) == 1000);
}
+static void test_sparse_write_one(int fd, const char *buffer, size_t n) {
+ char check[n];
+
+ assert_se(lseek(fd, 0, SEEK_SET) == 0);
+ assert_se(ftruncate(fd, 0) >= 0);
+ assert_se(sparse_write(fd, buffer, n, 4) == (ssize_t) n);
+
+ assert_se(lseek(fd, 0, SEEK_CUR) == (off_t) n);
+ assert_se(ftruncate(fd, n) >= 0);
+
+ assert_se(lseek(fd, 0, SEEK_SET) == 0);
+ assert_se(read(fd, check, n) == (ssize_t) n);
+
+ assert_se(memcmp(buffer, check, n) == 0);
+}
+
+static void test_sparse_write(void) {
+ const char test_a[] = "test";
+ const char test_b[] = "\0\0\0\0test\0\0\0\0";
+ const char test_c[] = "\0\0test\0\0\0\0";
+ const char test_d[] = "\0\0test\0\0\0test\0\0\0\0test\0\0\0\0\0test\0\0\0test\0\0\0\0test\0\0\0\0\0\0\0\0";
+ const char test_e[] = "test\0\0\0\0test";
+ _cleanup_close_ int fd = -1;
+ char fn[] = "/tmp/sparseXXXXXX";
+
+ fd = mkostemp(fn, O_CLOEXEC);
+ assert_se(fd >= 0);
+ unlink(fn);
+
+ test_sparse_write_one(fd, test_a, sizeof(test_a));
+ test_sparse_write_one(fd, test_b, sizeof(test_b));
+ test_sparse_write_one(fd, test_c, sizeof(test_c));
+ test_sparse_write_one(fd, test_d, sizeof(test_d));
+ test_sparse_write_one(fd, test_e, sizeof(test_e));
+}
+
int main(int argc, char *argv[]) {
log_parse_environment();
log_open();
@@ -1540,6 +1576,7 @@ int main(int argc, char *argv[]) {
test_raw_clone();
test_same_fd();
test_uid_ptr();
+ test_sparse_write();
return 0;
}