feat: Add build infra + tests for brainfuck interpreter

brainfuck/.gitignore

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+bf

brainfuck/Makefile

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+CC       = gcc
+CFLAGS   = -std=c11 -D_POSIX_C_SOURCE=200809L -Wall -Wpedantic -g
+LD       = gcc
+LDFLAGS  = 
+AR       = ar
+ARFLAGS  = rcs
+
+
+OBJS     = obj/main.o
+DEPS     = $(OBJS:%.o=%.d)
+
+-include $(DEPS)
+
+all: bf test
+
+obj/%.o: src/%.c obj
+	$(CC) $(CFLAGS) -c -o $@ $<
+
+
+bf: $(OBJS)
+	$(LD) $(LDFLAGS) -o $@ $^
+
+
+test: bf
+	./test/tests.sh "./bf"
+
+
+FORCE: ;
+
+clean:
+	@echo "Cleaning up"
+	@rm -f obj/*.o
+	@rm -f obj/*.d
+	@rm bf

brainfuck/obj/.gitignore

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+*.o
+*.d

brainfuck/test/cases/001-simple-hello-world.in

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+++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<+++++++++++++++.>.+++.------.--------.>+.>.

brainfuck/test/cases/001-simple-hello-world.stdout

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+Hello World!

brainfuck/test/cases/002-minimal-hello-world.in

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++[>>>->-[>->----<<<]>>]>.---.>+..+++.>>.<.>>---.<<<.+++.------.<-.>>+.

brainfuck/test/cases/002-minimal-hello-world.stdout

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+hello, world!

brainfuck/test/generate-results.sh

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+#!/bin/sh
+
+tmpfile1="/tmp/$$-1.tmp"
+tmpfile2="/tmp/$$-2.tmp"
+
+ls cases/*.in test/cases/*.in | sed -E 's/.in$//g' |  while read test; do
+  brainfuck < "$test.in" > $tmpfile1 2> $tmpfile2
+  if test ! -e "$test.stdout"; then
+    cp "$tmpfile1" "$test.stdout"
+  fi
+
+  if test ! -e "$test.stderr"; then
+    cp "$tmpfile2" "$test.stderr"
+  fi
+done
+
+rm "$tmpfile1"
+rm "$tmpfile2"

brainfuck/test/tests.sh

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+#/bin/sh
+
+executable="$1"
+
+tmpfile1="/tmp/$$-1.tmp"
+tmpfile2="/tmp/$$-2.tmp"
+resultsfile="/tmp/$$.results"
+
+touch "$resultsfile"
+
+run_testcase() {
+	test="$1"
+	echo "Test: $test"
+
+	if "$executable" "$test.in" < "$test.stdin" > "$tmpfile1" 2> "$tmpfile2" ; then
+		if diff -q "$test.stderr" "$tmpfile2" > /dev/null; then
+		  if diff -q "$test.stdout" "$tmpfile1" > /dev/null; then
+        printf "  \033[32msuccess\033[0m\n"
+        echo "$test: success" >> "$resultsfile"
+		  else
+        printf "  \033[31mfailed with stdout diff\033[0m\n"
+        echo "$test: fail" >> "$resultsfile"
+		  fi
+		else
+			printf "  \033[31mfailed with stderr diff\033[0m\n"
+			echo "$test: fail" >> "$resultsfile"
+		fi
+	else
+		printf "  \033[31mfailed with error\033[0m\n"
+		echo "$test: fail" >> "$resultsfile"
+	fi
+
+	rm "$tmpfile1";
+	rm "$tmpfile2";
+}
+
+ls cases/*.in test/cases/*.in | sed -E 's/.in$//g' |  while read test; do
+	run_testcase "$test"
+done
+
+echo
+echo
+echo "$(cat "$resultsfile" | wc -l) tests in total"
+echo "$(grep ": fail" "$resultsfile" | wc -l) tests failed"
+echo "$(grep ": success" "$resultsfile" | wc -l) tests succeeded"
+echo
+
+rm "$resultsfile"