--- /dev/null
+#-----------------------------------------------------------------------------
+# Copyright (C) 2014 iZsh <izsh at fail0verflow.com>
+#
+# This code is licensed to you under the terms of the GNU GPL, version 2 or,
+# at your option, any later version. See the LICENSE.txt file for the text of
+# the license.
+#-----------------------------------------------------------------------------
+
+TEST_OUTDIR = tb_tmp
+
+TB_SOURCES = \
+ tb_lp20khz_1MSa_iir_filter.v \
+ tb_min_max_tracker.v \
+ tb_lf_edge_detect.v
+
+TBS = $(TB_SOURCES:.v=.vvp)
+
+TB_DATA = \
+ pcf7931_write1byte_1MSA_data \
+ pcf7931_read_1MSA_data
+
+all: $(TBS) tests
+
+%.vvp: %.v
+ iverilog -I .. -o $@ $<
+
+clean:
+ rm -rf *.vvp $(TEST_OUTDIR)
+
+tests: tb_lp20khz_1MSa_iir_filter tb_min_max_tracker tb_lf_edge_detect
+
+tb_lp20khz_1MSa_iir_filter: tb_lp20khz_1MSa_iir_filter.vvp | test_dir
+ @printf "Testing $@\n"
+ @for d in $(TB_DATA); do \
+ $(call run_test,$@.vvp,$$d,in); \
+ $(call check_golden,$$d,filtered); \
+ done; \
+ rm -f $(TEST_OUTDIR)/data.*
+
+tb_min_max_tracker: tb_min_max_tracker.vvp | test_dir
+ @printf "Testing $@\n"
+ @for d in $(TB_DATA); do \
+ $(call run_test,$@.vvp,$$d,in filtered.gold); \
+ $(call check_golden,$$d,min); \
+ $(call check_golden,$$d,max); \
+ done; \
+ rm -f $(TEST_OUTDIR)/data.*
+
+tb_lf_edge_detect: tb_lf_edge_detect.vvp | test_dir
+ @printf "Testing $@\n"
+ @for d in $(TB_DATA); do \
+ $(call run_test,$@.vvp,$$d,in filtered.gold); \
+ $(call check_golden,$$d,min); \
+ $(call check_golden,$$d,max); \
+ $(call check_golden,$$d,state); \
+ $(call check_golden,$$d,toggle); \
+ $(call check_golden,$$d,high); \
+ $(call check_golden,$$d,highz); \
+ $(call check_golden,$$d,lowz); \
+ $(call check_golden,$$d,low); \
+ done; \
+ rm -f $(TEST_OUTDIR)/data.*
+
+test_dir:
+ @if [ ! -d $(TEST_OUTDIR) ] ; then mkdir $(TEST_OUTDIR) ; fi
+
+.PHONY: all clean
+
+# $(1) = basename
+# $(2) = extension to check
+check_golden = \
+ printf " Checking $(1).$(2)... "; \
+ mv $(TEST_OUTDIR)/data.$(2) $(TEST_OUTDIR)/$(1).$(2); \
+ if cmp -s tb_data/$(1).$(2).gold $(TEST_OUTDIR)/$(1).$(2); then \
+ printf "OK\n"; \
+ else \
+ printf "ERROR\n"; \
+ fi
+
+# $(1) = vvp file
+# $(2) = data basename
+# $(3) = data extensions to copy
+run_test = \
+ env echo " With $(2)... "; \
+ cp tb_data/$(2).time $(TEST_OUTDIR); \
+ for e in $(3); do cp tb_data/$(2).$$e $(TEST_OUTDIR)/data.$$e; done; \
+ ./$(1)