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[PATCH v4 3/4] git-p4: retry kill/cleanup operations in tests with timeout

From
larsxschneider@gmail.com <larsxschneider@gmail.com>
Date
Nov 6, 2015, 08:58 UTC
Message-ID
<1446800323-2914-4-git-send-email-larsxschneider@gmail.com>
In-Reply-To
<1446800323-2914-1-git-send-email-larsxschneider@gmail.com>
From: Lars Schneider <larsxschneider@gmail.com>

In rare cases kill/cleanup operations in tests fail. Retry these operations with a timeout to make the test less flaky.

Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
---
 t/lib-git-p4.sh | 31 +++++++++++++++++++++++--------
 1 file changed, 23 insertions(+), 8 deletions(-)
diff --git a/t/lib-git-p4.sh b/t/lib-git-p4.sh
index b1660f6..9043b51 100644
--- a/t/lib-git-p4.sh
+++ b/t/lib-git-p4.sh
@@ -10,6 +10,10 @@ TEST_NO_CREATE_REPO=NoThanks
 # the defined timeout in seconds.
 P4D_TIMEOUT=300
 
+# Some operations require multiple attempts to be successful. Define
+# here the maximal retry timeout in seconds.
+RETRY_TIMEOUT=60
+
 . ./test-lib.sh
 
 if ! test_have_prereq PYTHON
@@ -138,14 +142,24 @@ p4_add_user() {
 	EOF
 }
 
+retry_until_success() {
+    timeout=$(($(date +%s) + $RETRY_TIMEOUT))
+    until "$@" 2>/dev/null || test $(date +%s) -gt $timeout
+    do :
+    done
+}
+
+retry_until_fail() {
+    timeout=$(($(date +%s) + $RETRY_TIMEOUT))
+    until ! "$@" 2>/dev/null || test $(date +%s) -gt $timeout
+    do :
+    done
+}
+
 kill_p4d() {
 	pid=$(cat "$pidfile")
-	# it had better exist for the first kill
-	kill $pid &&
-	for i in 1 2 3 4 5 ; do
-		kill $pid >/dev/null 2>&1 || break
-		sleep 1
-	done &&
+	retry_until_fail kill $pid
+	retry_until_fail kill -9 $pid
 	# complain if it would not die
 	test_must_fail kill $pid >/dev/null 2>&1 &&
 	rm -rf "$db" "$cli" "$pidfile" &&
@@ -153,8 +167,9 @@ kill_p4d() {
 }
 
 cleanup_git() {
-	rm -rf "$git" &&
-	mkdir "$git"
+	retry_until_success rm -r "$git"
+	test_must_fail test -d "$git" &&
+	retry_until_success mkdir "$git"
 }
 
 marshal_dump() {
-- 
2.5.1
Previous: Lars SchneiderNext: Eric Sunshine
Message 8 of 20 in “Add Travis CI support”
  1. 0/4 Add Travis CI supportlarsxschneider@gmail.com, Nov 6, 2015
  2. 1/4 add function test_must_fail_or_sigpipe and use it to fix flaky testslarsxschneider@gmail.com, Nov 6, 2015
  3. Junio C HamanoNov 6, 2015
  4. Junio C HamanoNov 6, 2015
  5. 2/4 git-p4: add p4d timeout in testslarsxschneider@gmail.com, Nov 6, 2015
  6. Eric SunshineNov 6, 2015
  7. Lars SchneiderNov 6, 2015
  8. 3/4 git-p4: retry kill/cleanup operations in tests with timeoutlarsxschneider@gmail.com, Nov 6, 2015
  9. Eric SunshineNov 6, 2015
  10. Lars SchneiderNov 6, 2015
  11. Lars SchneiderNov 6, 2015
  12. 4/4 Add Travis CI supportlarsxschneider@gmail.com, Nov 6, 2015
  13. Eric SunshineNov 6, 2015
  14. Lars SchneiderNov 6, 2015
  15. Sebastian SchuberthNov 6, 2015
  16. Lars SchneiderNov 6, 2015
  17. Sebastian SchuberthNov 6, 2015
  18. Lars SchneiderNov 6, 2015
  19. Sebastian SchuberthNov 6, 2015
  20. Lars SchneiderNov 6, 2015

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