Add signal based file switching testcase

* testsuite/systemtap.base/flightrec1.exp: Add signal file switching testcase.
* testsuite/systemtap.base/flightrec4.exp: New test for signal file switching
  with file number limits.
* testsuite/systemtap.base/flightrec5.exp: New test for signal file switching
  with file number limits on bulk mode.

1 files changed, 56 insertions, 0 deletions

diff --git a/testsuite/systemtap.base/flightrec4.exp b/testsuite/systemtap.base/flightrec4.exp
new file mode 100644
index 00000000..3f17563d
--- /dev/null
+++ b/testsuite/systemtap.base/flightrec4.exp
@@ -0,0 +1,56 @@
+set test "flightrec4"
+if {![installtest_p]} { untested $test; return }
+
+# run stapio in background mode with number limit
+spawn stap -F -S 1,2 -o $test.out -we {probe begin {}}
+# check whether stap outputs stapio pid
+set pid 0
+expect {
+  -timeout 240
+  -re {([0-9]+)\r\n} {
+      pass "$test (flight recorder option)"
+      set pid $expect_out(1,string)
+      exp_continue}
+  timeout { fail "$test (timeout)" }
+  eof { }
+}
+wait
+if {$pid == 0} {
+  fail "$test (no pid)"
+  return -1
+}
+
+# switch file to .1
+exec kill -USR2 $pid
+
+# check output file
+if {[catch {exec rm $test.out.0}]} {
+  fail "$test (no output file)"
+  return -1
+} else {
+  pass "$test (output file)"
+}
+
+# switch file to .2
+exec kill -USR2 $pid
+# switch file to .3 (this time, .1 file should be deleted)
+exec kill -USR2 $pid
+
+# check switched output file
+if {[catch {exec rm $test.out.1}]} {
+  pass "$test (old output file is removed)"
+} else {
+  fail "$test (failed to remove output file)"
+  return -1
+}
+
+exec kill -TERM $pid
+
+# check switched output file
+if {[catch {exec rm $test.out.2 $test.out.3}]} {
+  fail "$test (failed to switch output file)"
+  return -1
+} else {
+  pass "$test (switch output file)"
+}
+