[25/25] selftests/ftrace: Add trace_pipe testcase
diff mbox series

Message ID 153269411396.3084.11842883301653040754.stgit@devbox
State New
Headers show
Series
  • selftests/ftrace: Improve ftracetest with coverage check
Related show

Commit Message

Masami Hiramatsu July 27, 2018, 12:21 p.m. UTC
Add a simple testcase for trace_pipe which can consume
ringbuffer.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
 .../selftests/ftrace/test.d/00basic/trace_pipe.tc  |   15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 tools/testing/selftests/ftrace/test.d/00basic/trace_pipe.tc


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Patch
diff mbox series

diff --git a/tools/testing/selftests/ftrace/test.d/00basic/trace_pipe.tc b/tools/testing/selftests/ftrace/test.d/00basic/trace_pipe.tc
new file mode 100644
index 000000000000..a7dd6fda487a
--- /dev/null
+++ b/tools/testing/selftests/ftrace/test.d/00basic/trace_pipe.tc
@@ -0,0 +1,15 @@ 
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+# description: trace_pipe and trace_marker
+
+[ ! -f trace_marker ] && exit_unsupported
+
+echo "test input 1" > trace_marker
+
+: "trace interface never consume the ring buffer"
+grep -q "test input 1" trace
+grep -q "test input 1" trace
+
+: "trace interface never consume the ring buffer"
+head -n 1 trace_pipe | grep -q "test input 1"
+! grep -q "test input 1" trace