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    Subject[PATCH v2 19/32] selftests/ftrace: Add a testcase for nop tracer
    Date
    Add a testcase for nop tracer. This tracer has 2 test
    options, so check it too.

    Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
    ---
    .../testing/selftests/ftrace/test.d/tracer/nop.tc | 22 ++++++++++++++++++++
    1 file changed, 22 insertions(+)
    create mode 100644 tools/testing/selftests/ftrace/test.d/tracer/nop.tc

    diff --git a/tools/testing/selftests/ftrace/test.d/tracer/nop.tc b/tools/testing/selftests/ftrace/test.d/tracer/nop.tc
    new file mode 100644
    index 000000000000..ca63e316e0f5
    --- /dev/null
    +++ b/tools/testing/selftests/ftrace/test.d/tracer/nop.tc
    @@ -0,0 +1,22 @@
    +#!/bin/sh
    +# SPDX-License-Identifier: GPL-2.0
    +# description: Test nop tracer
    +
    +# nop must be supported always
    +grep -q "nop" available_tracers
    +
    +echo "nop" > current_tracer
    +
    +# nop provides 2 test options
    +grep -q "test_nop_accept" trace_options
    +grep -q "test_nop_refuse" trace_options
    +
    +# nop_accept always success
    +echo "test_nop_accept" > trace_options
    +echo "notest_nop_accept" > trace_options
    +
    +# nop_refuse always failed
    +! echo "test_nop_refuse" > trace_options
    +! echo "notest_nop_refuse" > trace_options
    +
    +exit 0
    \
     
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