#include <stdio.h>#include <stddef.h>#include <stdint.h>#include <setjmp.h>#include <string.h>#include <stdarg.h>#include <cmocka.h> struct rest { //# decoder encoder	int x;            //#1	int z[2];         //#3 num_at=num_z	uint8_t b[4];     //#5 num_at=num_b	char s[5];        //#7 truncate	uint8_t rest[20]; //# rest=here 	int num_z;	int num_b;}; #include "test_rest.pb.h" voidtest_rest_reset(void **state){	struct rest r;	uint8_t buf[1]; 	(void)state;	memset(&r, 0, sizeof(r));	memset(r.rest, 0xff, sizeof(r.rest));	pb_reset_rest(&r);	// 1 byte buffer	assert_ptr_equal(pb_encode_rest(&r, buf, buf+sizeof(buf)), buf);	// 0 bytes buffer	assert_ptr_equal(pb_encode_rest(&r, buf, buf), buf);} voidtest_rest_reencode(void **state){	// x:1, x2:2, z:3, z:4, z2:5, z2:6, z2:7, b:"\x08\x09\x0a", b2:"\x0b\x0c\x0d", s:"abc", s2:"def"	const uint8_t raw[] = {		0x08, 0x01, 0x10, 0x02, 0x18, 0x03, 0x18, 0x04, 0x20, 0x05, 0x20, 0x06, 0x20, 0x07, 0x2a, 0x03,		0x08, 0x09, 0x0a, 0x32, 0x03, 0x0b, 0x0c, 0x0d, 0x3a, 0x03, 0x61, 0x62, 0x63, 0x42, 0x03, 0x64,		0x65, 0x66,	};	const uint8_t exp[] = {		0x08, 0x01,                         // x:1		0x18, 0x03, 0x18, 0x04,             // z:3, z:4		0x2a, 0x03, 0x08, 0x09, 0x0a,       // b:"\x08\x09\x0a"		0x3a, 0x03, 0x61, 0x62, 0x63,       // s:"abc"		0x10, 0x02,                         // x2:2		0x20, 0x05, 0x20, 0x06, 0x20, 0x07, // z2:5, z2:6, z2:7		0x32, 0x03, 0x0b, 0x0c, 0x0d,       // b2:"\x0b\x0c\x0d", 		0x42, 0x03, 0x64, 0x65, 0x66,       // s2:"def"	};	uint8_t buf[sizeof(exp)];	struct rest r; 	(void)state;	assert_non_null(pb_decode_rest(&r, raw, raw+sizeof(raw)));	assert_int_equal(r.x, 1);	assert_int_equal(r.num_z, 2);	assert_int_equal(r.z[0], 3);	assert_int_equal(r.z[1], 4);	assert_int_equal(r.num_b, 3);	assert_int_equal(r.b[0], 0x08);	assert_int_equal(r.b[1], 0x09);	assert_int_equal(r.b[2], 0x0a);	assert_string_equal(r.s, "abc"); 	// re-encode the same message back	assert_ptr_equal(pb_encode_rest(&r, buf, buf+sizeof(buf)), buf+sizeof(buf));	assert_memory_equal(buf, exp, sizeof(exp)); 	// try re-encoding with a smaller buffer	assert_null(pb_encode_rest(&r, buf, buf+sizeof(buf)-1));}