test/Makefile

   1 ASAN_OPTIONS?=verify_asan_link_order=0:detect_leaks=0:abort_on_error=1:unmap_shadow_on_exit=1:disable_coredump=0
   2 export ASAN_OPTIONS
   3
   4 .PHONY: verify-env
   5 verify-env:
   6 ifndef WS_ROOT
   7         $(error WS_ROOT is not set)
   8 endif
   9 ifndef BR
  10         $(error BR is not set)
  11 endif
  12 ifndef TEST_DIR
  13         $(error TEST_DIR is not set)
  14 endif
  15
  16 export TEST_BR = $(TEST_DIR)
  17 FAILED_DIR=/tmp/vpp-failed-unittests/
  18 VPP_TEST_DIRS=$(shell ls -d $(TEST_DIR) $(EXTERN_TESTS))
  19
  20 FORCE_NO_WIPE=0
  21 ifeq ($(DEBUG),gdb)
  22 FORCE_FOREGROUND=1
  23 else ifeq ($(DEBUG),gdbserver)
  24 FORCE_FOREGROUND=1
  25 else ifeq ($(DEBUG),gdb-all)
  26 FORCE_FOREGROUND=1
  27 else ifeq ($(DEBUG),gdbserver-all)
  28 FORCE_FOREGROUND=1
  29 else ifeq ($(DEBUG),core)
  30 FORCE_FOREGROUND=1
  31 else ifeq ($(DEBUG),attach)
  32 FORCE_FOREGROUND=1
  33 FORCE_NO_WIPE=1
  34 else ifeq ($(STEP),yes)
  35 FORCE_FOREGROUND=1
  36 else ifeq ($(STEP),y)
  37 FORCE_FOREGROUND=1
  38 else ifeq ($(STEP),1)
  39 FORCE_FOREGROUND=1
  40 else
  41 FORCE_FOREGROUND=0
  42 endif
  43
  44 ifdef PROFILE_OUTPUT
  45 PROFILE_OUTPUT_OPTS=-o $(PROFILE_OUTPUT)
  46 endif
  47
  48 ifndef PROFILE_SORT_BY
  49 PROFILE_SORT_BY=cumtime
  50 endif
  51
  52 ifeq ($(PROFILE),1)
  53 PYTHON_OPTS="-m cProfile $(PROFILE_OUTPUT_OPTS) -s $(PROFILE_SORT_BY)"
  54 FORCE_FOREGROUND=1
  55 endif
  56
  57 VENV_BR_DIR=$(BR)/test
  58 VENV_PATH=$(VENV_BR_DIR)/venv
  59
  60 ifeq ($(TEST_DEBUG),1)
  61 VENV_RUN_DIR:=$(VENV_PATH)/run-debug
  62 else
  63 VENV_RUN_DIR:=$(VENV_PATH)/run
  64 endif
  65
  66 ifeq ($(PYTHON),)
  67 PYTHON_INTERP=python3
  68 else
  69 PYTHON_INTERP=$(PYTHON)
  70 endif
  71
  72 ifeq ($(V),)
  73 V=0
  74 endif
  75
  76 PYTHON_VERSION=$(shell $(PYTHON_INTERP) -c 'import sys; print(sys.version_info.major)')
  77 PIP_VERSION=22.0.4
  78 # Keep in sync with requirements.txt
  79 PIP_TOOLS_VERSION=6.6.0
  80 PIP_SETUPTOOLS_VERSION=62.1.0
  81 PYTHON_DEPENDS=requirements-$(PYTHON_VERSION).txt
  82 SCAPY_SOURCE=$(shell find $(VENV_PATH)/lib/python* -name site-packages)
  83 BUILD_COV_DIR=$(TEST_BR)/coverage
  84
  85 PIP_TOOLS_INSTALL_DONE=$(VENV_RUN_DIR)/pip-tools-install-$(PYTHON_VERSION)-$(PIP_TOOLS_VERSION).done
  86 PIP_INSTALL_DONE=$(VENV_RUN_DIR)/pip-install-$(PYTHON_VERSION)-$(PIP_VERSION).done
  87 PIP_PATCH_DONE=$(VENV_RUN_DIR)/pip-patch-$(PYTHON_VERSION).done
  88 PAPI_INSTALL_DONE=$(VENV_RUN_DIR)/papi-install-$(PYTHON_VERSION).done
  89 PAPI_PYTHON_SRC_DIR=$(WS_ROOT)/src/vpp-api/python
  90 PAPI_WIPE_DIST=$(WS_ROOT)/src/vpp-api/vapi/__pycache__ \
  91         $(PAPI_PYTHON_SRC_DIR)/build \
  92         $(PAPI_PYTHON_SRC_DIR)/vpp_papi.egg-info \
  93         $(PAPI_PYTHON_SRC_DIR)/vpp_papi/__pycache__
  94
  95 $(PIP_TOOLS_INSTALL_DONE):
  96         @rm -rf $(VENV_PATH)
  97         @mkdir -p $(VENV_RUN_DIR)
  98         @$(PYTHON_INTERP) -m venv $(VENV_PATH)
  99         # pip version pinning
 100         @bash -c "source $(VENV_PATH)/bin/activate && \
 101                   python3 -m pip install pip===$(PIP_VERSION)"
 102         @bash -c "source $(VENV_PATH)/bin/activate && \
 103                   python3 -m pip install pip-tools===$(PIP_TOOLS_VERSION)"
 104         @bash -c "source $(VENV_PATH)/bin/activate && \
 105                   python3 -m pip install setuptools===$(PIP_SETUPTOOLS_VERSION)"
 106         @touch $@
 107
 108 $(PYTHON_DEPENDS): requirements.txt
 109         @bash -c "source $(VENV_PATH)/bin/activate && \
 110                   CUSTOM_COMPILE_COMMAND='make test-refresh-deps (or update requirements.txt)' \
 111                   python3 -m piptools compile -q --generate-hashes requirements.txt --output-file $@"
 112
 113 $(PIP_INSTALL_DONE): $(PIP_TOOLS_INSTALL_DONE) $(PYTHON_DEPENDS)
 114         @bash -c "source $(VENV_PATH)/bin/activate && \
 115                   python3 -m piptools sync $(PYTHON_DEPENDS)"
 116         @touch $@
 117
 118 $(PIP_PATCH_DONE): $(PIP_INSTALL_DONE)
 119         @echo --- patching ---
 120         @sleep 1 # Ensure python recompiles patched *.py files -> *.pyc
 121         for f in $(CURDIR)/patches/scapy-2.4.3/*.patch ; do \
 122                 echo Applying patch: $$(basename $$f) ; \
 123                 patch --forward -p1 -d $(SCAPY_SOURCE) < $$f ; \
 124                 retCode=$$?; \
 125                 [ $$retCode -gt 1 ] && exit $$retCode; \
 126         done; \
 127         touch $@
 128
 129 $(PAPI_INSTALL_DONE): $(PIP_PATCH_DONE)
 130         @bash -c "source $(VENV_PATH)/bin/activate && python3 -m pip install -e $(PAPI_PYTHON_SRC_DIR)"
 131         @touch $@
 132
 133 .PHONY: refresh-deps
 134 refresh-deps: clean-deps $(PYTHON_DEPENDS)
 135
 136 .PHONY: clean-deps
 137 clean-deps:
 138         @rm -f $(PYTHON_DEPENDS)
 139
 140 INTERN_PLUGIN_SRC_DIR=$(WS_ROOT)/src/plugins
 141 ifneq ($(EXTERN_PLUGIN_SRC_DIR),)
 142 PLUGIN_SRC_DIR=$(EXTERN_PLUGIN_SRC_DIR)
 143 else
 144 PLUGIN_SRC_DIR=$(INTERN_PLUGIN_SRC_DIR)
 145 endif
 146
 147 .PHONY: sanity
 148
 149 ifndef TEST_JOBS
 150 PARALLEL_ILLEGAL=0
 151 TEST_JOBS=1
 152 else ifeq ($(FORCE_FOREGROUND),0)
 153 PARALLEL_ILLEGAL=0
 154 else ifneq ($(findstring $(TEST_JOBS),1 auto),)
 155 PARALLEL_ILLEGAL=0
 156 else
 157 PARALLEL_ILLEGAL=1
 158 endif
 159
 160 ifneq ($(DEBUG),)
 161 SANITY=no
 162 endif
 163
 164 ifneq ($(findstring $(SANITY),0 n no),)
 165 SANITY_IMPORT_VPP_PAPI_CMD=true
 166 ARG0=
 167 else
 168 SANITY_IMPORT_VPP_PAPI_CMD=source $(VENV_PATH)/bin/activate && $(PYTHON_INTERP) sanity_import_vpp_papi.py
 169 ARG0=--sanity
 170 endif
 171
 172 ARG1=
 173 ifneq ($(findstring $(FAILFAST),1 y yes),)
 174 ARG1=--failfast
 175 endif
 176
 177 ARG2=
 178 ifneq ($(findstring $(EXTENDED_TESTS),1 y yes),)
 179 ARG2=--extended
 180 endif
 181
 182 ARG3=
 183 ifneq ($(EXTERN_TESTS),)
 184 ARG3=--test-src-dir $(EXTERN_TESTS)
 185 endif
 186
 187 ARG4=
 188 ifneq ($(findstring $(FORCE_FOREGROUND),1 y yes),)
 189 ARG4=--force-foreground
 190 endif
 191
 192 ARG5=
 193 ifneq ($(findstring $(COREDUMP_COMPRESS),1 y yes),)
 194 ARG5=--compress-core
 195 endif
 196
 197 ARG6=
 198 ifneq ($(findstring $(STEP),1 y yes),)
 199 ARG6=--step
 200 endif
 201
 202 ARG7=
 203 ifneq ($(findstring $(TESTS_GCOV),1 y yes),)
 204 ARG7=--gcov
 205 endif
 206
 207 ARG8=
 208 ifneq ($(EXTERN_PLUGINS),)
 209 ARG8=--extern-plugin-dir=$(EXTERN_PLUGINS)
 210 endif
 211
 212 ARG9=
 213 ifneq ($(DEBUG),)
 214 ARG9=--debug=$(DEBUG)
 215 endif
 216
 217 ARG10=
 218 ifneq ($(COREDUMP_SIZE),)
 219 ARG10=--coredump-size=$(COREDUMP_SIZE)
 220 endif
 221
 222 ARG11=
 223 ifneq ($(VARIANT),)
 224 ARG11=--variant=$(VARIANT)
 225 endif
 226
 227 ARG12=--cache-vpp-output
 228 ifneq ($(findstring $(CACHE_OUTPUT),0 n no),)
 229 ARG12=
 230 endif
 231
 232 ARG13=
 233 ifneq ($(MAX_VPP_CPUS),)
 234 ARG13=--max-vpp-cpus=$(MAX_VPP_CPUS)
 235 endif
 236
 237 ARG14=
 238 ifneq ($(TIMEOUT),)
 239 ARG14=--timeout=$(TIMEOUT)
 240 endif
 241
 242 ARG15=
 243 ifneq ($(findstring $(TEST_DEBUG),1 y yes),)
 244 ARG15=--debug-framework
 245 endif
 246
 247 ARG16=
 248 ifneq ($(findstring $(API_FUZZ),1 y yes),)
 249 ARG16=--api-fuzz=on
 250 endif
 251
 252 ARG17=
 253 ifneq ($(EXTERN_APIDIR),)
 254 ARG17=--extern-apidir=$(EXTERN_APIDIR)
 255 endif
 256
 257 EXTRA_ARGS=$(ARG0) $(ARG1) $(ARG2) $(ARG3) $(ARG4) $(ARG5) $(ARG6) $(ARG7) $(ARG8) $(ARG9) $(ARG10) $(ARG11) $(ARG12) $(ARG13) $(ARG14) $(ARG15) $(ARG16) $(ARG17)
 258
 259 RUN_TESTS_ARGS=--failed-dir=$(FAILED_DIR) --verbose=$(V) --jobs=$(TEST_JOBS) --filter=$(TEST) --retries=$(RETRIES) --venv-dir=$(VENV_PATH) --vpp-ws-dir=$(WS_ROOT) --vpp-tag=$(TAG) --rnd-seed=$(RND_SEED) --vpp-worker-count="$(VPP_WORKER_COUNT)" --keep-pcaps $(PLUGIN_PATH_ARGS) $(TEST_PLUGIN_PATH_ARGS) $(EXTRA_ARGS)
 260 RUN_SCRIPT_ARGS=--python-opts=$(PYTHON_OPTS)
 261
 262 define retest-func
 263 @scripts/run.sh $(RUN_SCRIPT_ARGS) $(RUN_TESTS_ARGS) || env FAILED_DIR=$(FAILED_DIR) COMPRESS_FAILED_TEST_LOGS=$(COMPRESS_FAILED_TEST_LOGS) scripts/compress_failed.sh
 264 endef
 265
 266 sanity: test-dep
 267         @bash -c "test $(PARALLEL_ILLEGAL) -eq 0 ||\
 268             (echo \"*******************************************************************\" &&\
 269                  echo \"* Sanity check failed, TEST_JOBS is not 1 or 'auto' and DEBUG, STEP or PROFILE is set\" &&\
 270                  echo \"*******************************************************************\" &&\
 271                  false)"
 272         @bash -c "$(SANITY_IMPORT_VPP_PAPI_CMD) ||\
 273                 (echo \"*******************************************************************\" &&\
 274                  echo \"* Sanity check failed, cannot import vpp_papi\" &&\
 275                  echo \"* to debug: \" &&\
 276                  echo \"* 1. enter test shell:   make test-shell\" &&\
 277                  echo \"* 2. execute debugger:   gdb python -ex 'run sanity_import_vpp_papi.py'\" &&\
 278                  echo \"*******************************************************************\" &&\
 279                  false)"
 280
 281 $(FAILED_DIR): reset
 282         @mkdir -p $@
 283
 284 .PHONY: test-dep
 285 test-dep: $(PAPI_INSTALL_DONE) $(FAILED_DIR)
 286
 287 .PHONY: test
 288 test: test-dep sanity
 289         $(call retest-func)
 290
 291 .PHONY: retest
 292 retest: verify-env sanity $(FAILED_DIR)
 293         $(call retest-func)
 294
 295 .PHONY: shell
 296 shell: test-dep
 297         @echo "source $(VENV_PATH)/bin/activate;\
 298                 export RND_SEED=$(RND_SEED);\
 299                 echo '***';\
 300                 echo PYTHONPATH=$(PYTHONPATH);\
 301                 echo RND_SEED=$(RND_SEED);\
 302                 echo VPP_BUILD_DIR=$(VPP_BUILD_DIR);\
 303                 echo VPP_PLUGIN_PATH=$(VPP_PLUGIN_PATH);\
 304                 echo VPP_TEST_PLUGIN_PATH=$(VPP_TEST_PLUGIN_PATH);\
 305                 echo VPP_INSTALL_PATH=$(VPP_INSTALL_PATH);\
 306                 echo EXTERN_TESTS=$(EXTERN_TESTS);\
 307                 echo EXTERN_PLUGINS=$(EXTERN_PLUGINS);\
 308         echo EXTERN_COV_DIR=$(EXTERN_COV_DIR);\
 309                 echo LD_LIBRARY_PATH=$(LD_LIBRARY_PATH);\
 310                 echo '***';\
 311                 exec </dev/tty" | bash -i
 312
 313 .PHONY: reset
 314 reset:
 315         @rm -f /dev/shm/vpp-unittest-*
 316         @if [ $(FORCE_NO_WIPE) -eq "0" ] ; then rm -rf /tmp/vpp-unittest-*;  fi
 317         @rm -f /tmp/api_post_mortem.*
 318         @rm -rf $(FAILED_DIR)
 319         @rm -rf /tmp/vpp-vm-tests
 320
 321 .PHONY: wipe
 322 wipe: reset
 323         @rm -rf $(VENV_BR_DIR)
 324         @rm -rf $(patsubst %,%/__pycache__, $(VPP_TEST_DIRS))
 325
 326 $(BUILD_COV_DIR):
 327         @mkdir -p $@
 328
 329 .PHONY: cov
 330 cov: wipe-cov test-dep ext $(BUILD_COV_DIR)
 331         @lcov --zerocounters --directory $(VPP_BUILD_DIR)
 332         @test -z "$(EXTERN_COV_DIR)" || lcov --zerocounters --directory $(EXTERN_COV_DIR)
 333         $(call retest-func)
 334         @lcov --capture --directory $(VPP_BUILD_DIR) --output-file $(BUILD_COV_DIR)/coverage.info
 335         @test -z "$(EXTERN_COV_DIR)" || lcov --capture --directory $(EXTERN_COV_DIR) --output-file $(BUILD_COV_DIR)/extern-coverage.info
 336         @genhtml $(BUILD_COV_DIR)/coverage.info --output-directory $(BUILD_COV_DIR)/html
 337         @test -z "$(EXTERN_COV_DIR)" || genhtml $(BUILD_COV_DIR)/extern-coverage.info --output-directory $(BUILD_COV_DIR)/extern-html
 338         @echo
 339         @echo "Build finished. Code coverage report is in $(BUILD_COV_DIR)/html/index.html"
 340         @test -z "$(EXTERN_COV_DIR)" || echo "Code coverage report for out-of-tree objects is in $(BUILD_COV_DIR)/extern-html/index.html"
 341
 342 .PHONY: wipe-cov
 343 wipe-cov: wipe
 344         @rm -rf $(BUILD_COV_DIR)
 345
 346 .PHONY: wipe-papi
 347 wipe-papi:
 348         @rm -rf $(PAPI_INSTALL_DONE) $(PAPI_WIPE_DIST)
 349
 350 .PHONY: wipe-all
 351 wipe-all: wipe wipe-papi wipe-cov
 352         @rm -rf $(TEST_BR)
 353
 354 .PHONY: start-gdb
 355 start-gdb: sanity
 356         @bash -c "source $(VENV_PATH)/bin/activate && python3 -c 'from debug import start_vpp_in_gdb; start_vpp_in_gdb()' $(RUN_TESTS_ARGS)"
 357
 358 .PHONY: checkstyle-python-all
 359 checkstyle-python-all: $(PIP_INSTALL_DONE)
 360         @bash -c "source $(VENV_PATH)/bin/activate &&\
 361                 black -t py39 --check --diff $(WS_ROOT) ||\
 362                 (echo \"*************************************************************************\" &&\
 363                 echo \"* Test framework PEP8 compliance check FAILED (maybe: make fixstyle-python)\" &&\
 364                 echo \"*************************************************************************\" &&\
 365                 false)"
 366         @echo "*******************************************************************"
 367         @echo "* Test framework PEP8 compliance check passed"
 368         @echo "*******************************************************************"
 369
 370 .PHONY: checkstyle
 371 checkstyle: checkstyle-python-all
 372
 373 .PHONY: fixstyle-python-all
 374 fixstyle-python-all: $(PIP_INSTALL_DONE)
 375         @bash -c "source $(VENV_PATH)/bin/activate &&\
 376                 black -t py39 $(WS_ROOT) ||\
 377                 (echo \"*************************************************************************\" &&\
 378                 echo \"* Test framework PEP8 compliance check FAILED (maybe: make fixstyle-python)\" &&\
 379                 echo \"*************************************************************************\" &&\
 380                 false)"
 381         @echo "*******************************************************************"
 382         @echo "* Test framework PEP8 compliance check passed"
 383         @echo "*******************************************************************"
 384
 385 .PHONY: help
 386 help:
 387         @echo "Running tests:"
 388         @echo ""
 389         @echo " test                   - build and run (basic) functional tests"
 390         @echo " test-debug             - build and run (basic) functional tests (debug build)"
 391         @echo " test-all               - build and run functional and extended tests"
 392         @echo " test-all-debug         - build and run functional and extended tests (debug build)"
 393         @echo " retest                 - run functional tests"
 394         @echo " retest-debug           - run functional tests (debug build)"
 395         @echo " retest-all             - run functional and extended tests"
 396         @echo " retest-all-debug       - run functional and extended tests (debug build)"
 397         @echo " test-cov               - generate code coverage report for test framework"
 398         @echo " test-gcov                      - build and run functional tests (gcov build)"
 399         @echo " test-wipe              - wipe (temporary) files generated by unit tests"
 400         @echo " test-wipe-cov          - wipe code coverage report for test framework"
 401         @echo " test-wipe-papi         - rebuild vpp_papi sources"
 402         @echo " test-wipe-all          - wipe (temporary) files generated by unit tests, and coverage"
 403         @echo " test-shell             - enter shell with test environment"
 404         @echo " test-shell-debug       - enter shell with test environment (debug build)"
 405         @echo " test-refresh-deps      - refresh the Python dependencies for the tests"
 406         @echo ""
 407         @echo "Arguments controlling test runs:"
 408         @echo ""
 409         @echo " V=[0|1|2]              - set test verbosity level"
 410         @echo "                          0=ERROR, 1=INFO, 2=DEBUG"
 411         @echo " TEST_JOBS=[<n>|auto]   - use at most <n> parallel python processes for test execution, if auto, set to number of available cpus (default: 1)"
 412         @echo " MAX_VPP_CPUS=[<n>|auto]- use at most <n> cpus for running vpp main and worker threads, if auto, set to number of available cpus (default: auto)"
 413         @echo " CACHE_OUTPUT=[0|n|no]  - disable cache VPP stdout/stderr and log as one block after test finishes (default: yes)"
 414         @echo " FAILFAST=[1|y|yes]     - fail fast if 1, otherwise complete all tests"
 415         @echo " TIMEOUT=<timeout>      - fail test suite if any single test takes longer than <timeout> (in seconds) to finish (default: 600)"
 416         @echo " RETRIES=<n>            - retry failed tests <n> times"
 417         @echo " DEBUG=<type>           - set VPP debugging kind"
 418         @echo "    DEBUG=core          - detect coredump and load it in gdb on crash"
 419         @echo "    DEBUG=gdb           - allow easy debugging by printing VPP PID"
 420         @echo "                          and waiting for user input before running"
 421         @echo "                          and tearing down a testcase"
 422         @echo "    DEBUG=gdbserver     - run gdb inside a gdb server, otherwise"
 423         @echo "                          same as above"
 424         @echo "    DEBUG=attach        - attach test case to already running vpp in gdb (see test-start-vpp-in-gdb)"
 425         @echo " STEP=[1|y|yes]         - enable stepping through a testcase (for testcase debugging)"
 426         @echo " SANITY=[0|n|no]        - disable sanity import of vpp-api/sanity vpp run before running tests"
 427         @echo " EXTENDED_TESTS=[1|y|yes] - run extended tests"
 428         @echo " TEST=<filter>          - filter the set of tests:"
 429         @echo "    by file-name        - only run tests from specified file, e.g. TEST=test_bfd selects all tests from test_bfd.py"
 430         @echo "    by file-suffix      - same as file-name, but 'test_' is omitted e.g. TEST=bfd selects all tests from test_bfd.py"
 431         @echo "    by wildcard         - wildcard filter is <file>.<class>.<test function>, each can be replaced by '*'"
 432         @echo "                          e.g. TEST='test_bfd.*.*' is equivalent to above example of filter by file-name"
 433         @echo "                               TEST='bfd.*.*' is equivalent to above example of filter by file-suffix"
 434         @echo "                               TEST='bfd.BFDAPITestCase.*' selects all tests from test_bfd.py which are part of BFDAPITestCase class"
 435         @echo "                               TEST='bfd.BFDAPITestCase.test_add_bfd' selects a single test named test_add_bfd from test_bfd.py/BFDAPITestCase"
 436         @echo "                               TEST='*.*.test_add_bfd' selects all test functions named test_add_bfd from all files/classes"
 437         @echo " VARIANT=<variant>      - specify which march node variant to unit test"
 438         @echo "                          e.g. VARIANT=skx test the skx march variants"
 439         @echo "                          e.g. VARIANT=icl test the icl march variants"
 440         @echo " COREDUMP_SIZE=<size>   - pass <size> as unix { coredump-size <size> } argument to vpp"
 441         @echo "                          e.g. COREDUMP_SIZE=4g"
 442         @echo "                               COREDUMP_SIZE=unlimited"
 443         @echo " COREDUMP_COMPRESS=[1|y|yes] - compress core files if not debugging them"
 444         @echo " EXTERN_TESTS=<path>    - path to out-of-tree test_<name>.py files containing test cases"
 445         @echo " EXTERN_PLUGINS=<path>  - path to out-of-tree plugins to be loaded by vpp under test"
 446         @echo " EXTERN_COV_DIR=<path>  - path to out-of-tree prefix, where source, object and .gcda files can be found for coverage report"
 447         @echo " PROFILE=[1|y|yes]      - enable profiling of test framework via cProfile module"
 448         @echo " PROFILE_SORT_BY=opt    - sort profiling report by opt - consult cProfile documentation for possible values (default: cumtime)"
 449         @echo " PROFILE_OUTPUT=file    - output profiling info to file - use absolute path (default: stdout)"
 450         @echo " TEST_DEBUG=[1|y|yes]   - enable debugging of the test framework itself (expert)"
 451         @echo " API_FUZZ=[1|y|yes]     - enable VPP api fuzz testing"
 452         @echo " RND_SEED=<seed>        - Seed RND with given seed"
 453         @echo ""
 454         @echo "Starting VPP in GDB for use with DEBUG=attach:"
 455         @echo ""
 456         @echo " test-start-vpp-in-gdb       - start VPP in gdb (release)"
 457         @echo " test-start-vpp-debug-in-gdb - start VPP in gdb (debug)"
 458         @echo ""
 459         @echo "Creating test code coverage report:"
 460         @echo ""
 461         @echo " test-cov               - generate code coverage report for test framework"
 462         @echo " test-wipe-cov          - wipe code coverage report for test framework"