tests: make tests less make dependent

Implement command line argument parsing instead of passing arguments via
environment variables. Add script for running tests without having to
invoke make. Deprecate running tests via make.

Type: improvement
Change-Id: I2e3054a61a2ae25d460e9be00be7d7705fbf943e
Signed-off-by: Klement Sekera <ksekera@cisco.com>
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>
diff --git a/Makefile b/Makefile
index fb5bd1d..def06a3 100644
--- a/Makefile
+++ b/Makefile
@@ -262,7 +262,6 @@
 	@echo "                            startup.conf file is present"
 	@echo " GDB=<path>               - gdb binary to use for debugging"
 	@echo " PLATFORM=<name>          - target platform. default is vpp"
-	@echo " TEST=<filter>            - apply filter to test set, see test-help"
 	@echo " DPDK_CONFIG=<conf>       - add specified dpdk config commands to"
 	@echo "                            autogenerated startup.conf"
 	@echo "                            (e.g. \"no-pci\" )"
@@ -413,7 +412,6 @@
 rebuild-release: wipe-release build-release
 
 export TEST_DIR ?= $(WS_ROOT)/test
-export RND_SEED ?= $(shell python3 -c 'import time; print(time.time())')
 
 define test
 	$(if $(filter-out $(2),retest),make -C $(BR) PLATFORM=vpp TAG=$(1) vpp-install,)
@@ -427,6 +425,7 @@
 	  OS_ID=$(OS_ID) \
 	  RND_SEED=$(RND_SEED) \
 	  CACHE_OUTPUT=$(CACHE_OUTPUT) \
+	  TAG=$(1) \
 	  $(2)
 endef
 
@@ -444,12 +443,12 @@
 
 .PHONY: test-all
 test-all:
-	$(eval EXTENDED_TESTS=yes)
+	$(eval EXTENDED_TESTS=1)
 	$(call test,vpp,test)
 
 .PHONY: test-all-debug
 test-all-debug:
-	$(eval EXTENDED_TESTS=yes)
+	$(eval EXTENDED_TESTS=1)
 	$(call test,vpp_debug,test)
 
 .PHONY: papi-wipe
@@ -496,7 +495,7 @@
 
 .PHONY: test-cov
 test-cov:
-	$(eval EXTENDED_TESTS=yes)
+	$(eval EXTENDED_TESTS=1)
 	$(call test,vpp_gcov,cov)
 
 .PHONY: test-wipe-cov
@@ -529,12 +528,12 @@
 
 .PHONY: retest-all
 retest-all:
-	$(eval EXTENDED_TESTS=yes)
+	$(eval EXTENDED_TESTS=1)
 	$(call test,vpp,retest)
 
 .PHONY: retest-all-debug
 retest-all-debug:
-	$(eval EXTENDED_TESTS=yes)
+	$(eval EXTENDED_TESTS=1)
 	$(call test,vpp_debug,retest)
 
 .PHONY: test-start-vpp-in-gdb