Add first simple test

.github/workflows/cmake.yml

@@ -38,3 +38,8 @@ jobs:
         with:
           overwrite: true
           path: lo2s*.tar.bz2
+      - name: Test
+        if: ${{ matrix.compiler == 'g++-12' && matrix.os == 'ubuntu-24.04' && matrix.build-type == 'RelWithDebInfo' && matrix.hw_breakpoint == 'ON' && github.event_name != 'pull_request'}}
+        run: |
+          sudo sysctl kernel.perf_event_paranoid=-1
+          ctest --output-on-failure

CMakeLists.txt

@@ -18,6 +18,9 @@ include(cmake/UnsetIfUpdated.cmake)
 include(cmake/CheckNameExists.cmake)
 include(cmake/CheckStructHasBitField.cmake)
 
+enable_testing()
+include(cmake/Tests.cmake)
+
 # Intialize git submodules if not done already
 include(cmake/GitSubmoduleUpdate.cmake)
 git_submodule_update()

cmake/Tests.cmake

@@ -0,0 +1,7 @@
+set(TESTS lo2s_user_sampling)
+
+foreach(TEST ${TESTS})
+
+    add_test(NAME ${TEST} COMMAND bash ${CMAKE_CURRENT_SOURCE_DIR}/cmake/tests/${TEST}.sh)
+    set_tests_properties(${TEST} PROPERTIES SKIP_RETURN_CODE 100)
+endforeach()

cmake/tests/lo2s_user_sampling.sh

@@ -0,0 +1,24 @@
+set -euo pipefail
+
+paranoid=$(cat /proc/sys/kernel/perf_event_paranoid)
+
+echo "perf_event_paranoid is: $paranoid"
+if [ $paranoid -gt 2 ]
+then
+    # skip
+    exit 100
+fi
+
+#!/bin/bash
+rm -rf test_trace
+./lo2s -c 1  --output-trace test_trace -- sleep 1
+
+if  otf2-print test_trace/traces.otf2 | grep  "SAMPLE"
+then
+    exit 0
+else
+    echo "Trace did not contain calling context samples!"
+    exit 1
+fi
+rm -rf test_trace
+