t/jobs/t0035: add test for the file operations IO engine

The previous commit fixed the NULL pointer dereference which happened
when the write_lat_log option is specified for the file operations IO
engine. Add a new test case to confirm the fix. This test case also
covers the basic use cases of the file operations IO engine.

Signed-off-by: Shin'ichiro Kawasaki <shinichiro.kawasaki@wdc.com>
Link: https://lore.kernel.org/r/20240906023717.1464031-3-shinichiro.kawasaki@wdc.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>

t/jobs/t0035.fio

@@ -0,0 +1,27 @@
+[global]
+size=4k
+write_lat_log=log
+
+[job1]
+ioengine=filecreate
+filename=t0035file1
+
+[job2]
+ioengine=filestat
+filename=t0035file2
+
+[job3]
+ioengine=filedelete
+filename=t0035file3
+
+[job4]
+ioengine=dircreate
+filename=t0035dir1
+
+[job5]
+ioengine=dirstat
+filename=t0035dir2
+
+[job6]
+ioengine=dirdelete
+filename=t0035dir3

t/run-fio-tests.py

@@ -944,6 +944,16 @@ def check_result(self):
  'pre_success': SUCCESS_DEFAULT,
  'requirements': [Requirements.linux, Requirements.libaio],
  },
+ {
+ 'test_id': 35,
+ 'test_class': FioJobFileTest,
+ 'job': 't0035.fio',
+ 'success': SUCCESS_DEFAULT,
+ 'pre_job': None,
+ 'pre_success': None,
+ 'pre_success': SUCCESS_DEFAULT,
+ 'requirements': [],
+ },
  {
  'test_id': 1000,
  'test_class': FioExeTest,