gh-1094: extract a test case from box/snapshot_daemon.test.lua

test/box/snapshot.result

+env = require('test_run')
+---
+...
+test_run = env.new()
+---
+...
+-- gh-1094: box.snapshot() aborts if the server is out of file descriptors
+ffi=require('ffi')
+---
+...
+test_run:cmd("setopt delimiter ';;;'")
+---
+- true
+...
+ffi.cdef[[
+struct rlimit {unsigned long cur; unsigned long max;};
+int getrlimit(int resource, struct rlimit *rlim);
+int setrlimit(int resource, const struct rlimit *rlim);
+
+]];;;
+---
+...
+test_run:cmd("setopt delimiter ''");;;
+---
+- true
+...
+_ = box.space._schema:insert({'gh1094'})
+---
+...
+r = ffi.new('struct rlimit')
+---
+...
+ffi.C.getrlimit(7, r)
+---
+- 0
+...
+orig_limit = r.cur;
+---
+...
+r.cur = 1
+---
+...
+ffi.C.setrlimit(7, r)
+---
+- 0
+...
+box.snapshot()
+---
+- error: can't save snapshot, errno 24 (Too many open files)
+...
+r.cur = orig_limit
+---
+...
+ffi.C.setrlimit(7, r)
+---
+- 0
+...
+box.snapshot()
+---
+- ok
+...
+_ = box.space._schema:delete({'gh1094'})
+---
+...

test/box/snapshot.test.lua

+env = require('test_run')
+test_run = env.new()
+
+-- gh-1094: box.snapshot() aborts if the server is out of file descriptors
+ffi=require('ffi')
+
+test_run:cmd("setopt delimiter ';;;'")
+
+ffi.cdef[[
+struct rlimit {unsigned long cur; unsigned long max;};
+int getrlimit(int resource, struct rlimit *rlim);
+int setrlimit(int resource, const struct rlimit *rlim);
+
+]];;;
+
+test_run:cmd("setopt delimiter ''");;;
+
+_ = box.space._schema:insert({'gh1094'})
+
+r = ffi.new('struct rlimit')
+
+ffi.C.getrlimit(7, r)
+orig_limit = r.cur;
+r.cur = 1
+ffi.C.setrlimit(7, r)
+box.snapshot()
+r.cur = orig_limit
+ffi.C.setrlimit(7, r)
+
+box.snapshot()
+
+_ = box.space._schema:delete({'gh1094'})

test/box/snapshot_daemon.result

@@ -132,55 +132,3 @@ daemon.snapshot_count = 20
 box.cfg{ snapshot_count = 0 }
 ---
 ...
---test for failed snapshot in case of insufficient descriptors
-f=require('ffi')
----
-...
-test_run:cmd("setopt delimiter ';;;'")
----
-- true
-...
-f.cdef[[
-struct rlimit {unsigned long cur; unsigned long max;};
-int getrlimit(int resource, struct rlimit *rlim);
-int setrlimit(int resource, const struct rlimit *rlim);
-
-]];;;
----
-...
-test_run:cmd("setopt delimiter ''");;;
----
-- true
-...
-r = f.new('struct rlimit')
----
-...
-f.C.getrlimit(7, r)
----
-- 0
-...
-orig_limit = r.cur;
----
-...
-r.cur = 1
----
-...
-f.C.setrlimit(7, r)
----
-- 0
-...
-box.snapshot()
----
-- error: can't save snapshot, errno 24 (Too many open files)
-...
-r.cur = orig_limit
----
-...
-f.C.setrlimit(7, r)
----
-- 0
-...
-box.snapshot()
----
-- ok
-...

test/box/snapshot_daemon.test.lua

@@ -72,32 +72,3 @@ daemon.snapshot_count = 20
 
 -- stop daemon
 box.cfg{ snapshot_count = 0 }
-
-
---test for failed snapshot in case of insufficient descriptors
-
-f=require('ffi')
-
-test_run:cmd("setopt delimiter ';;;'")
-
-f.cdef[[
-struct rlimit {unsigned long cur; unsigned long max;};
-int getrlimit(int resource, struct rlimit *rlim);
-int setrlimit(int resource, const struct rlimit *rlim);
-
-]];;;
-
-test_run:cmd("setopt delimiter ''");;;
-
-r = f.new('struct rlimit')
-
-f.C.getrlimit(7, r)
-orig_limit = r.cur;
-r.cur = 1
-f.C.setrlimit(7, r)
-box.snapshot()
-r.cur = orig_limit
-f.C.setrlimit(7, r)
-
-box.snapshot()
-