Imported Upstream version 8.24upstream/8.24upstream

1 files changed, 56 insertions, 48 deletions

diff --git a/tests/tail-2/F-vs-rename.sh b/tests/tail-2/F-vs-rename.sh
index 3e31ec8c..06733fb4 100755
--- a/tests/tail-2/F-vs-rename.sh
+++ b/tests/tail-2/F-vs-rename.sh
@@ -1,9 +1,9 @@
 #!/bin/sh
-# demonstrate that tail -F works when renaming the tailed files
-# Before coreutils-8.3, tail -F a b would stop tracking additions to b
-# after "mv a b".
+# Demonstrate that tail -F works when renaming the tailed files.
+# Between coreutils 7.5 and 8.2 inclusive, 'tail -F a b' would
+# stop tracking additions to b after 'mv a b'.
 
-# Copyright (C) 2009-2014 Free Software Foundation, Inc.
+# Copyright (C) 2009-2015 Free Software Foundation, Inc.
 
 # This program is free software: you can redistribute it and/or modify
 # it under the terms of the GNU General Public License as published by
@@ -21,55 +21,63 @@
 . "${srcdir=.}/tests/init.sh"; path_prepend_ ./src
 print_ver_ tail
 
-touch a b || framework_failure_
-
-debug='---disable-inotify'
-debug=
-tail $debug -F -s.1 a b > out 2>&1 & pid=$!
-
 check_tail_output()
 {
   local delay="$1"
-  grep "$tail_re" out > /dev/null ||
-    { sleep $delay; return 1; }
-}
-
-# Wait up to 6.3s for tail to start
-echo x > a
-tail_re='^x$' retry_delay_ check_tail_output .1 7 || fail=1
-
-mv a b || fail=1
-
-# Wait 6.3s for this diagnostic:
-# tail: 'a' has become inaccessible: No such file or directory
-tail_re='inaccessible' retry_delay_ check_tail_output .1 7 || fail=1
-
-echo x > a
-# Wait up to 6.3s for this to appear in the output:
-# "tail: '...' has appeared;  following end of new file"
-tail_re='has appeared' retry_delay_ check_tail_output .1 7 ||
-  { echo "$0: a: unexpected delay?"; cat out; fail=1; }
-
-echo y >> b
-# Wait up to 6.3s for "y" to appear in the output:
-tail_f_vs_rename_2() {
-  local delay="$1"
-  tr '\n' @ < out | grep '@@==> b <==@y@$' > /dev/null ||
-    { sleep $delay; return 1; }
-}
-retry_delay_ tail_f_vs_rename_2 .1 7 ||
-  { echo "$0: b: unexpected delay?"; cat out; fail=1; }
-
-echo z >> a
-# Wait up to 6.3s for "z" to appear in the output:
-tail_f_vs_rename_3() {
-  local delay="$1"
-  tr '\n' @ < out | grep '@@==> a <==@z@$' > /dev/null ||
+  grep "$tail_re" out ||
     { sleep $delay; return 1; }
 }
-retry_delay_ tail_f_vs_rename_3 .1 7 ||
-  { echo "$0: a: unexpected delay?"; cat out; fail=1; }
 
-kill -HUP $pid
+# Terminate any background tail process
+cleanup_() { kill $pid 2>/dev/null && wait $pid; }
+
+# Speedup the non inotify case
+fastpoll='-s.1 --max-unchanged-stats=1'
+
+for mode in '' '---disable-inotify'; do
+  rm -f a b out
+  touch a b || framework_failure_
+
+  tail $mode -F $fastpoll a b > out 2>&1 & pid=$!
+
+  # Wait up to 12.7s for tail to start.
+  echo x > a
+  tail_re='^x$' retry_delay_ check_tail_output .1 7 || { cat out; fail=1; }
+
+  mv a b || framework_failure_
+
+  # Wait 12.7s for this diagnostic:
+  # tail: 'a' has become inaccessible: No such file or directory
+  tail_re='inaccessible' retry_delay_ check_tail_output .1 7 ||
+    { cat out; fail=1; }
+
+  echo x > a
+  # Wait up to 12.7s for this to appear in the output:
+  # "tail: '...' has appeared;  following new file"
+  tail_re='has appeared' retry_delay_ check_tail_output .1 7 ||
+    { echo "$0: a: unexpected delay?"; cat out; fail=1; }
+
+  echo y >> b
+  # Wait up to 12.7s for "y" to appear in the output:
+  tail_f_vs_rename_2() {
+    local delay="$1"
+    tr '\n' @ < out | grep '@@==> b <==@y@$' > /dev/null ||
+      { sleep $delay; return 1; }
+  }
+  retry_delay_ tail_f_vs_rename_2 .1 7 ||
+    { echo "$0: b: unexpected delay?"; cat out; fail=1; }
+
+  echo z >> a
+  # Wait up to 12.7s for "z" to appear in the output:
+  tail_f_vs_rename_3() {
+    local delay="$1"
+    tr '\n' @ < out | grep '@@==> a <==@z@$' > /dev/null ||
+      { sleep $delay; return 1; }
+  }
+  retry_delay_ tail_f_vs_rename_3 .1 7 ||
+    { echo "$0: a: unexpected delay?"; cat out; fail=1; }
+
+  cleanup_
+done
 
 Exit $fail