tests: truncate metadata file for regenerate metadata test

[lttng-tools.git] / tests / regression / tools / regen-metadata / test_kernel

diff --git a/tests/regression/tools/regen-metadata/test_kernel b/tests/regression/tools/regen-metadata/test_kernel
index 04746dbbc090cd695e5448be3624e24c43d20405..0f879e6360b3c500720b6f302d264c3974f5b0ca 100755 (executable)
--- a/tests/regression/tools/regen-metadata/test_kernel
+++ b/tests/regression/tools/regen-metadata/test_kernel
@@ -13,45 +13,67 @@ SESSION_NAME=""
 
 TRACE_PATH=$(mktemp -d)
 
-NUM_TESTS=18
+NUM_TESTS=24
 
 source $TESTDIR/utils/utils.sh
 
 function test_kernel_streaming ()
 {
+       local metadata_path
+
        diag "Test kernel streaming with metadata regeneration"
        create_lttng_session_uri $SESSION_NAME net://localhost
        lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
        start_lttng_tracing_ok $SESSION_NAME
        echo -n "100" > /proc/lttng-test-filter-event
+
+       # Baseline
+       stop_lttng_tracing_ok $SESSION_NAME
+       validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
+
+       # Find the metadata file
+       metadata_path=$(find "$TRACE_PATH/$HOSTNAME/$SESSION_NAME"* | grep metadata)
+
+       # Empty the metadata file
+       echo -n > "$metadata_path"
+
+       start_lttng_tracing_ok $SESSION_NAME
        regenerate_metadata_ok $SESSION_NAME
        stop_lttng_tracing_ok $SESSION_NAME
        # Validate test
        validate_trace $EVENT_NAME $TRACE_PATH/$HOSTNAME/$SESSION_NAME*
-       if [ $? -eq 0 ]; then
-               # Only delete if successful
-               rm -rf $TRACE_PATH
-       else
-               break
-       fi
        destroy_lttng_session_ok $SESSION_NAME
+       rm -rf "$TRACE_PATH"
 }
 
 function test_kernel_local ()
 {
+       local metadata_path
+
        diag "Test kernel local with metadata regeneration"
        create_lttng_session_ok $SESSION_NAME $TRACE_PATH
        lttng_enable_kernel_event $SESSION_NAME $EVENT_NAME
        start_lttng_tracing_ok $SESSION_NAME
+
+       # Baseline
        echo -n "100" > /proc/lttng-test-filter-event
+       stop_lttng_tracing_ok $SESSION_NAME
+       validate_trace $EVENT_NAME "$TRACE_PATH"
+
+       # Find the metadata file
+       metadata_path=$(find "$TRACE_PATH"* | grep metadata)
+
+       # Empty the metadata file
+       echo -n > "$metadata_path"
+
+       start_lttng_tracing_ok $SESSION_NAME
        regenerate_metadata_ok $SESSION_NAME
        stop_lttng_tracing_ok $SESSION_NAME
+
        validate_trace $EVENT_NAME $TRACE_PATH
-       if [ $? -eq 0 ]; then
-               # Only delete if successful
-               rm -rf $TRACE_PATH
-       fi
        destroy_lttng_session_ok $SESSION_NAME
+
+       rm -rf "$TRACE_PATH"
 }
 
 plan_tests $NUM_TESTS