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 $(VENV_PATH)/lib/python* -name site-packages)
  83 BUILD_COV_DIR=$(BR)/test-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 $(TEST_GCOV),1 y yes),)
 204 ARG7=--gcov
 205 endif
 206
 207 ARG8=
 208 ifneq ($(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-prep
 330 cov-prep: test-dep
 331         @lcov --zerocounters --directory $(VPP_BUILD_DIR)
 332         @test -z "$(EXTERN_COV_DIR)" || lcov --zerocounters --directory $(EXTERN_COV_DIR)
 333
 334 .PHONY: cov-post
 335 cov-post: wipe-cov $(BUILD_COV_DIR)
 336         @lcov --capture \
 337                 --directory $(VPP_BUILD_DIR) \
 338                 --output-file $(BUILD_COV_DIR)/coverage.info
 339         @test -z "$(EXTERN_COV_DIR)" || \
 340                 lcov --capture \
 341                 --directory $(EXTERN_COV_DIR) \
 342                 --output-file $(BUILD_COV_DIR)/extern-coverage.info
 343         @lcov --remove $(BUILD_COV_DIR)/coverage.info \
 344                 "/usr/include/*" "*/build-root/*" "/opt/*" "/usr/lib/*" \
 345                 -o $(BUILD_COV_DIR)/coverage-filtered.info
 346         @genhtml $(BUILD_COV_DIR)/coverage-filtered.info \
 347                 --output-directory $(BUILD_COV_DIR)/html
 348         @test -z "$(EXTERN_COV_DIR)" || \
 349                 genhtml $(BUILD_COV_DIR)/extern-coverage.info \
 350                         --output-directory $(BUILD_COV_DIR)/extern-html
 351         @echo
 352         @echo "Build finished. Code coverage report is in $(BUILD_COV_DIR)/html/index.html"
 353         @test -z "$(EXTERN_COV_DIR)" || echo "Code coverage report for out-of-tree objects is in $(BUILD_COV_DIR)/extern-html/index.html"
 354
 355 .PHONY: cov
 356 cov:
 357         make -C . cov-prep test cov-post
 358
 359 .PHONY: wipe-cov
 360 wipe-cov: wipe
 361         @rm -rf $(BUILD_COV_DIR)
 362
 363 .PHONY: wipe-papi
 364 wipe-papi:
 365         @rm -rf $(PAPI_INSTALL_DONE) $(PAPI_WIPE_DIST)
 366
 367 .PHONY: wipe-all
 368 wipe-all: wipe wipe-papi wipe-cov
 369         @rm -rf $(TEST_BR)
 370
 371 .PHONY: start-gdb
 372 start-gdb: sanity
 373         @bash -c "source $(VENV_PATH)/bin/activate && python3 -c 'from debug import start_vpp_in_gdb; start_vpp_in_gdb()' $(RUN_TESTS_ARGS)"
 374
 375 .PHONY: checkstyle-python-all
 376 checkstyle-python-all: $(PIP_INSTALL_DONE)
 377         @bash -c "source $(VENV_PATH)/bin/activate &&\
 378                 black -t py39 --check --diff $(WS_ROOT) ||\
 379                 (echo \"*************************************************************************\" &&\
 380                 echo \"* Test framework PEP8 compliance check FAILED (maybe: make fixstyle-python)\" &&\
 381                 echo \"*************************************************************************\" &&\
 382                 false)"
 383         @echo "*******************************************************************"
 384         @echo "* Test framework PEP8 compliance check passed"
 385         @echo "*******************************************************************"
 386
 387 .PHONY: checkstyle
 388 checkstyle: checkstyle-python-all
 389
 390 .PHONY: fixstyle-python-all
 391 fixstyle-python-all: $(PIP_INSTALL_DONE)
 392         @bash -c "source $(VENV_PATH)/bin/activate &&\
 393                 black -t py39 $(WS_ROOT) ||\
 394                 (echo \"*************************************************************************\" &&\
 395                 echo \"* Test framework PEP8 compliance check FAILED (maybe: make fixstyle-python)\" &&\
 396                 echo \"*************************************************************************\" &&\
 397                 false)"
 398         @echo "*******************************************************************"
 399         @echo "* Test framework PEP8 compliance check passed"
 400         @echo "*******************************************************************"
 401
 402 .PHONY: help
 403 help:
 404         @echo "Running tests:"
 405         @echo ""
 406         @echo " test                   - build and run (basic) functional tests"
 407         @echo " test-debug             - build and run (basic) functional tests (debug build)"
 408         @echo " test-cov               - generate code coverage report for functional tests"
 409         @echo " test-cov-prep          - coverage phase #1 : prepare lcov"
 410         @echo " test-cov-build         - coverage phase #2 : build gcov image & run tests against it (use TEST=)"
 411         @echo " test-cov-post          - coverage phase #3 : generate lcov html report"
 412         @echo " test-all               - build and run functional and extended tests"
 413         @echo " test-all-debug         - build and run functional and extended tests (debug build)"
 414         @echo " test-all-cov           - generate code coverage report for functional and extended tests"
 415         @echo " retest                 - run functional tests"
 416         @echo " retest-debug           - run functional tests (debug build)"
 417         @echo " retest-all             - run functional and extended tests"
 418         @echo " retest-all-debug       - run functional and extended tests (debug build)"
 419         @echo " test-wipe              - wipe (temporary) files generated by unit tests"
 420         @echo " test-wipe-cov          - wipe code coverage report for test framework"
 421         @echo " test-wipe-papi         - rebuild vpp_papi sources"
 422         @echo " test-wipe-all          - wipe (temporary) files generated by unit tests, and coverage"
 423         @echo " test-shell             - enter shell with test environment"
 424         @echo " test-shell-debug       - enter shell with test environment (debug build)"
 425         @echo " test-refresh-deps      - refresh the Python dependencies for the tests"
 426         @echo ""
 427         @echo "Environment variables controlling test runs:"
 428         @echo ""
 429         @echo "   V=[0|1|2]"
 430         @echo "       set test verbosity level: 0=ERROR, 1=INFO, 2=DEBUG"
 431         @echo ""
 432         @echo "   TEST_JOBS=[<n>|auto]"
 433         @echo "       use at most <n> parallel python processes for test"
 434         @echo "       execution, if auto, set to number of available cpus"
 435         @echo "       (default: 1)"
 436         @echo ""
 437         @echo "   MAX_VPP_CPUS=[<n>|auto]"
 438         @echo "       use at most <n> cpus for running vpp"
 439         @echo "       'auto' sets to number of available cpus"
 440         @echo "       (default: auto)"
 441         @echo ""
 442         @echo "   CACHE_OUTPUT=[0|n|no]"
 443         @echo "       disable caching VPP stdout/stderr and logging it"
 444         @echo "       as one block after test finishes"
 445         @echo "       (default: yes)"
 446         @echo ""
 447         @echo "   FAILFAST=[1|y|yes]"
 448         @echo "       if enabled, stop running tests on first failure"
 449         @echo "       otherwise finish running whole suite"
 450         @echo "       (default: no)"
 451         @echo ""
 452         @echo "   TIMEOUT=<timeout>"
 453         @echo "       fail test suite if any single test takes longer"
 454         @echo "       than <timeout> (in seconds) to finish"
 455         @echo "       (default: 600)"
 456         @echo ""
 457         @echo "   RETRIES=<n>"
 458         @echo "       retry failed tests <n> times"
 459         @echo "       (default: 0)"
 460         @echo ""
 461         @echo "   DEBUG=<type>"
 462         @echo "       configure VPP debugging:"
 463         @echo "       DEBUG=core"
 464         @echo "           detect coredump and load it in gdb on crash"
 465         @echo ""
 466         @echo "       DEBUG=gdb"
 467         @echo "           print VPP PID and wait for user input before"
 468         @echo "           running and tearing down a testcase, allowing"
 469         @echo "           easy gdb attach"
 470         @echo ""
 471         @echo "       DEBUG=gdbserver"
 472         @echo "           same as above, but run gdb inside a gdb server"
 473         @echo ""
 474         @echo "       DEBUG=attach"
 475         @echo "           attach to existing vpp in running in gdb"
 476         @echo "           (see test-start-vpp-in-gdb)"
 477         @echo "       (default: none)"
 478         @echo ""
 479         @echo "   STEP=[1|y|yes]"
 480         @echo "       enable stepping through a testcase"
 481         @echo "       (default: no)"
 482         @echo ""
 483         @echo "   SANITY=[0|n|no]"
 484         @echo "       disable sanity import of vpp-api/vpp sanity"
 485         @echo "       run before running tests"
 486         @echo "       (default: yes)"
 487         @echo ""
 488         @echo "   EXTENDED_TESTS=[1|y|yes]"
 489         @echo "       run extended tests"
 490         @echo "       (default: no)"
 491         @echo ""
 492         @echo "   TEST=<filter>,[<filter>],..."
 493         @echo "       only run tests matching one or more comma-delimited"
 494         @echo "       filter expressions"
 495         @echo ""
 496         @echo "       simple filter:"
 497         @echo "           file name or file suffix select all tests from a file"
 498         @echo "           examples:"
 499         @echo "               TEST=test_bfd"
 500         @echo "               TEST=bfd"
 501         @echo "                    equivalent expressions selecting all"
 502         @echo "                    tests defined in test_bfd.py"
 503         @echo ""
 504         @echo "       wildcard filter:"
 505         @echo "           advanced filtering based on test file, test class"
 506         @echo "           and test function"
 507         @echo "           each filter expression is in the form of"
 508         @echo "               <file>.<class>.<test function>"
 509         @echo "           each of the tokens can be left empty or replaced"
 510         @echo "           with '*' to select all objects available"
 511         @echo "           examples:"
 512         @echo "               TEST=test_bfd.*.*"
 513         @echo "               TEST=test_bfd.."
 514         @echo "               TEST=bfd.*.*"
 515         @echo "               TEST=bfd.."
 516         @echo "                    select all tests defined in test_bfd.py"
 517         @echo "               TEST=bfd.BFDAPITestCase.*"
 518         @echo "               TEST=bfd.BFDAPITestCase."
 519         @echo "                    select all tests from test_bfd.py"
 520         @echo "                    which are part of BFDAPITestCase class"
 521         @echo "               TEST=bfd.BFDAPITestCase.test_add_bfd"
 522         @echo "                    select a single test named test_add_bfd"
 523         @echo "                    from test_bfd.py/BFDAPITestCase"
 524         @echo "               TEST=..test_add_bfd"
 525         @echo "               TEST=*.*.test_add_bfd"
 526         @echo "                    select all test functions named test_add_bfd"
 527         @echo "                    from all files/classes"
 528         @echo "               TEST=bfd,ip4,..test_icmp_error"
 529         @echo "                    select all test functions in test_bfd.py,"
 530         @echo "                    test_ip4.py and all test functions named"
 531         @echo "                    'test_icmp_error' in all files"
 532         @echo "       (default: '')"
 533         @echo ""
 534         @echo "   VARIANT=<variant>"
 535         @echo "       specify which march node variant to unit test"
 536         @echo "           e.g. VARIANT=skx test the skx march variants"
 537         @echo "           e.g. VARIANT=icl test the icl march variants"
 538         @echo "       (default: '')"
 539         @echo ""
 540         @echo "   COREDUMP_SIZE=<size>"
 541         @echo "       pass <size> as unix { coredump-size <size> } argument"
 542         @echo "       to vpp, e.g. COREDUMP_SIZE=4g or COREDUMP_SIZE=unlimited"
 543         @echo "       (default: '')"
 544         @echo ""
 545         @echo "   COREDUMP_COMPRESS=[1|y|yes]"
 546         @echo "       if no debug option is set, compress any core files"
 547         @echo "       (default: no)"
 548         @echo ""
 549         @echo "   EXTERN_TESTS=<path>"
 550         @echo "       include out-of-tree test_*.py files under <path>"
 551         @echo "       (default: '')"
 552         @echo ""
 553         @echo "   EXTERN_PLUGINS=<path>"
 554         @echo "       load out-of-tree vpp plugins in <path>"
 555         @echo "       (default: '')"
 556         @echo ""
 557         @echo "   EXTERN_COV_DIR=<path>"
 558         @echo "       path to out-of-tree prefix, where source, object"
 559         @echo "       and .gcda files can be found for coverage report"
 560         @echo "       (default: '')"
 561         @echo ""
 562         @echo "   PROFILE=[1|y|yes]"
 563         @echo "       enable profiling of test framework via cProfile module"
 564         @echo "       (default: no)"
 565         @echo ""
 566         @echo "   PROFILE_SORT_BY=opt"
 567         @echo "       sort profiling report by opt - see cProfile documentation"
 568         @echo "       for possible values"
 569         @echo "       (default: cumtime)"
 570         @echo ""
 571         @echo "   PROFILE_OUTPUT=file"
 572         @echo "       output profiling info to file - use absolute path"
 573         @echo "       (default: stdout)"
 574         @echo ""
 575         @echo "   TEST_DEBUG=[1|y|yes]"
 576         @echo "       enable debugging of the test framework itself (expert)"
 577         @echo "       (default: no)"
 578         @echo ""
 579         @echo "   TEST_GCOV=[1|y|yes]"
 580         @echo "       enable tests specifically designed soley for code coverage"
 581         @echo "       (default: no)"
 582         @echo ""
 583         @echo "   API_FUZZ=[1|y|yes]"
 584         @echo "       enable VPP api fuzz testing"
 585         @echo "       (default: no)"
 586         @echo ""
 587         @echo "   RND_SEED=<seed>"
 588         @echo "       random seed used by test framework"
 589         @echo "       (default: time.time())"
 590         @echo ""
 591         @echo "Starting VPP in GDB for use with DEBUG=attach:"
 592         @echo ""
 593         @echo " test-start-vpp-in-gdb       - start VPP in gdb (release)"
 594         @echo " test-start-vpp-debug-in-gdb - start VPP in gdb (debug)"
 595         @echo ""