commit a06cc1769a79f0a8c57415f858a97e2cef174c9e
from: Benjamin Stürz <benni@stuerz.xyz>
date: Fri Jul 05 16:12:28 2024 UTC

add test

commit - aabb26f4967eaad4ba6030017a87f156bf0df14e
commit + a06cc1769a79f0a8c57415f858a97e2cef174c9e
blob - b01f1c55cb4f2b49ac28a0eef40040777fc3d561
blob + c3fb48590755b9e8052aa783549970a1a8d2c255
--- .gitignore
+++ .gitignore
@@ -1,5 +1,9 @@
 destruct
 destruct.inc
+test/data.[cho]
+test/test
+test/test.bin
+test/main.o
 y.tab.h
 test.[ch]
 *.o
blob - /dev/null
blob + 7dee7fad484b905e9422eba3f5e2dfdf27d76e3e (mode 644)
--- /dev/null
+++ test/Makefile
@@ -0,0 +1,22 @@
+DESTRUCT = ../destruct
+ENDIAN = little
+
+all: test test.bin
+
+run: all
+	./test
+
+clean:
+	rm -f test test.bin data.[ch] *.o
+
+test: main.o data.o
+	${CC} -o $@ main.o data.o
+
+test.bin:
+	printf '%-16.16s\777\0\0\0\002\0\0\0\x55\x01\0\0\0\0\0\0' "Hello World" > $@
+
+main.o: data.h
+
+data.c data.h: data.dst
+	${DESTRUCT} -e ${ENDIAN} -H data.h -o data.c data.dst
+
blob - /dev/null
blob + df2005624e42afc83c0af2a277981ccc0722b10a (mode 644)
--- /dev/null
+++ test/data.dst
@@ -0,0 +1,11 @@
+struct test {
+	name: [u8; 16],
+	version: u32,
+	size: u8,
+	data: union {
+		byte: u8 if size == 1,
+		half: u16 if size == 2,
+		word: u32 if size == 4,
+		dword: u64 if size == 8,
+	},
+};
blob - /dev/null
blob + e8797078e019b2bfedb5ab8024cacfb234a2bd3f (mode 644)
--- /dev/null
+++ test/main.c
@@ -0,0 +1,43 @@
+#include <unistd.h>
+#include <stdio.h>
+#include <fcntl.h>
+#include <err.h>
+#include "data.h"
+
+int main (void)
+{
+	struct test test;
+	uint8_t buffer[sizeof (test)];
+	int fd;
+       
+	fd = open ("test.bin", O_RDONLY);
+	if (fd < 0)
+		err (1, "cannot open test.bin");
+
+	if (read (fd, buffer, sizeof (buffer)) != sizeof (buffer))
+		err (1, "cannot read test.bin");
+
+	decode_test (&test, buffer);
+
+	printf ("name: \"%.16s\"\n", test.name);
+	printf ("version: %u\n", (unsigned)test.version);
+	printf ("size: %u\n", (unsigned)test.size);
+	
+	switch (test.size) {
+	case 1:
+		printf ("byte: %u\n", (unsigned)test.data.byte);
+		break;
+	case 2:
+		printf ("half: %u\n", (unsigned)test.data.half);
+		break;
+	case 4:
+		printf ("word: %u\n", (unsigned)test.data.word);
+		break;
+	case 8:
+		printf ("dword: %llu\n", (unsigned long long)test.data.dword);
+		break;
+	}
+
+	
+	close (fd);
+}