Add test program orph.c

Signed-off-by: Adrian Hunter <ext-adrian.hunter@nokia.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>

2 files changed, 60 insertions, 2 deletions

diff --git a/tests/fs-tests/lib/tests.c b/tests/fs-tests/lib/tests.c
index 8c34b00..e2a6d5b 100644
--- a/tests/fs-tests/lib/tests.c
+++ b/tests/fs-tests/lib/tests.c
@@ -506,9 +506,9 @@ void tests_check_filled_file_fd(int fd)
 	char buf[WRITE_BUFFER_SIZE];
 
 	do {
-		sz = read(fd,buf,WRITE_BUFFER_SIZE);
+		sz = read(fd, buf, WRITE_BUFFER_SIZE);
 		CHECK(sz >= 0);
-		CHECK(memcmp(buf,write_buffer,sz) == 0);
+		CHECK(memcmp(buf, write_buffer, sz) == 0);
 	} while (sz);
 }
 
@@ -585,6 +585,26 @@ uint64_t tests_get_big_file_size(unsigned numerator, unsigned denominator)
 	return numerator * (tests_get_free_space() / denominator);
 }
 
+/* Create file "fragment_n" where n is the file_number, and unlink it */
+int tests_create_orphan(unsigned file_number)
+{
+	int fd;
+	int flags;
+	mode_t mode;
+	char file_name[256];
+
+	sprintf(file_name, "fragment_%u", file_number);
+	flags = O_CREAT | O_TRUNC | O_RDWR | tests_maybe_sync_flag();
+	mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH;
+	fd = open(file_name, flags, mode);
+	if (fd == -1 && (errno == ENOSPC || errno == EMFILE))
+		return fd; /* File system full or too many open files */
+	CHECK(fd != -1);
+	tests_sync_directory(file_name);
+	CHECK(unlink(file_name) != -1);
+	return fd;
+}
+
 /* Write size bytes at offset to the file "fragment_n" where n is the
    file_number and file_number also determines the random data written
    i.e. seed for random numbers */
@@ -710,6 +730,30 @@ void tests_delete_fragment_file(unsigned file_number)
 }
 
 /* Check the random data in file "fragment_n" is what is expected */
+void tests_check_fragment_file_fd(unsigned file_number, int fd)
+{
+	ssize_t sz, i;
+	int d;
+	uint64_t u;
+	char buf[8192];
+
+	CHECK(lseek(fd, 0, SEEK_SET) == 0);
+	srand(file_number);
+	u = RAND_MAX;
+	u += 1;
+	u /= 256;
+	d = (int) u;
+	for (;;) {
+		sz = read(fd, buf, 8192);
+		if (sz == 0)
+			break;
+		CHECK(sz >= 0);
+		for (i = 0; i < sz; ++i)
+			CHECK(buf[i] == (char) (rand() / d));
+	}
+}
+
+/* Check the random data in file "fragment_n" is what is expected */
 void tests_check_fragment_file(unsigned file_number)
 {
 	int fd;
diff --git a/tests/fs-tests/lib/tests.h b/tests/fs-tests/lib/tests.h
index 36ca310..db08628 100644
--- a/tests/fs-tests/lib/tests.h
+++ b/tests/fs-tests/lib/tests.h
@@ -85,6 +85,17 @@ uint64_t tests_create_file(const char *file_name, uint64_t file_size);
 /* Calculate: free_space * numerator / denominator */
 uint64_t tests_get_big_file_size(unsigned numerator, unsigned denominator);
 
+/* Create file "fragment_n" where n is the file_number, and unlink it */
+int tests_create_orphan(unsigned file_number);
+
+/* Write size bytes at offset to the file "fragment_n" where n is the
+   file_number and file_number also determines the random data written
+   i.e. seed for random numbers */
+unsigned tests_write_fragment_file(unsigned file_number,
+				int fd,
+				off_t offset,
+				unsigned size);
+
 /* Write size bytes to the end of file descriptor fd using file_number
    to determine the random data written i.e. seed for random numbers */
 unsigned tests_fill_fragment_file(unsigned file_number,
@@ -109,6 +120,9 @@ unsigned tests_overwite_fragment_file(	unsigned file_number,
 void tests_delete_fragment_file(unsigned file_number);
 
 /* Check the random data in file "fragment_n" is what is expected */
+void tests_check_fragment_file_fd(unsigned file_number, int fd);
+
+/* Check the random data in file "fragment_n" is what is expected */
 void tests_check_fragment_file(unsigned file_number);
 
 /* Central point to decide whether to use fsync */