functional tests: run from make tests but not smtlib/rkt tests

Makefile

@@ -891,6 +891,7 @@ endif
 	+cd tests/xprop && bash run-test.sh $(SEEDOPT)
 	+cd tests/fmt && bash run-test.sh
 	+cd tests/cxxrtl && bash run-test.sh
+	+cd tests/functional && bash run-test.sh
 	@echo ""
 	@echo "  Passed \"make test\"."
 	@echo ""

tests/functional/conftest.py

@@ -4,6 +4,10 @@ import random
 
 random_seed = random.getrandbits(32)
 
+def pytest_configure(config):
+    config.addinivalue_line("markers", "smt: test uses smtlib/z3")
+    config.addinivalue_line("markers", "rkt: test uses racket/rosette")
+
 def pytest_addoption(parser):
     parser.addoption("--per-cell", type=int, default=None, help="run only N tests per cell")
     parser.addoption("--steps", type=int, default=1000, help="run each test for N steps")

tests/functional/run-test.sh

@@ -1,2 +1,2 @@
 #!/usr/bin/env bash
-pytest -v "$@"
+pytest -v -m "not smt and not rkt" "$@"

tests/functional/test_functional.py

@@ -55,6 +55,7 @@ def test_cxx(cell, parameters, tmp_path, num_steps, rnd):
     run([str(vcdharness_exe_file.resolve()), str(vcd_functional_file), str(num_steps), str(seed)])
     yosys_sim(rtlil_file, vcd_functional_file, vcd_yosys_sim_file, getattr(cell, 'sim_preprocessing', ''))
 
+@pytest.mark.smt
 def test_smt(cell, parameters, tmp_path, num_steps, rnd):
     import smt_vcd
 
@@ -72,6 +73,7 @@ def test_smt(cell, parameters, tmp_path, num_steps, rnd):
     smt_vcd.simulate_smt(smt_file, vcd_functional_file, num_steps, rnd(cell.name + "-smt"))
     yosys_sim(rtlil_file, vcd_functional_file, vcd_yosys_sim_file, getattr(cell, 'sim_preprocessing', ''))
 
+@pytest.mark.rkt
 def test_rkt(cell, parameters, tmp_path, num_steps, rnd):
     import rkt_vcd