tests: converted to Makefiles

tests/bonsai/hru.mk

@@ -0,0 +1,35 @@
+# Copyright (c) 2024 Emma Tebibyte <emma@tebibyte.media>
+# SPDX-License-Identifier: FSFAP
+#
+# Copying and distribution of this file, with or without modification, are
+# permitted in any medium without royalty provided the copyright notice and this
+# notice are preserved.  This file is offered as-is, without any warranty.
+
+NAME = hru
+TARGET = $(NAME)_tests
+BINARY = $(BIN)/$(NAME)
+
+.PHONY: hru_tests
+hru_tests: $(BIN)/hru
+
+.PHONY: hru_functionality
+hru_functionality: $(BIN)/hru
+	test "$(printf '1234\n' | $(BIN)/hru)" = '1.2 kB'
+	test "$(printf '0\n' | $(BIN)/hru)" = '0 B'
+
+.PHONY: $(NAME_help)
+hru_help: $(BIN)/hru
+	! $(BIN)/hru -h
+
+.PHONY: hru_negative
+hru_negative: $(BIN)/hru
+	! printf '%s\n' '-1' | $(BIN)/hru
+
+.PHONY: hru_regressions
+hru_regressions: $(BIN)/hru
+	n=1; \
+	while true; \
+		do n="$$(($$n * 10))"; \
+		printf '%s\n' "$$n" | $(BIN)/hru || break; \
+	done; \
+	printf 'Max float: %s\n' "$$n"