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// Copyright (c) 2020 Johannes Stoelp
#include "test_helper.h"
extern "C" {
#include <fmt.h>
}
void check_dec() {
char have[16];
int len = fmt(have, sizeof(have), "%d %d", 12345, -54321);
ASSERT_EQ("12345 -54321", have);
ASSERT_EQ(12, len);
ASSERT_EQ('\0', have[len]);
}
void check_dec_long() {
char have[32];
int len = fmt(have, sizeof(have), "%ld %d", 8589934592 /* 2^33 */, 8589934592 /* 2^33 */);
ASSERT_EQ("8589934592 0", have);
ASSERT_EQ(12, len);
ASSERT_EQ('\0', have[len]);
}
void check_hex() {
char have[16];
int len = fmt(have, sizeof(have), "%x %x", 0xdeadbeef, 0xcafe);
ASSERT_EQ("deadbeef cafe", have);
ASSERT_EQ(13, len);
ASSERT_EQ('\0', have[len]);
}
void check_hex_long() {
char have[32];
int len = fmt(have, sizeof(have), "%lx %x", 0x1111222233334444, 0x1111222233334444);
ASSERT_EQ("1111222233334444 33334444", have);
ASSERT_EQ(25, len);
ASSERT_EQ('\0', have[len]);
}
void check_char() {
char have[4];
int len = fmt(have, sizeof(have), "%c%c%c", 'A', 'a', '\x01' /* non printable */);
ASSERT_EQ("Aa\x01", have);
ASSERT_EQ(3, len);
ASSERT_EQ('\0', have[len]);
}
void check_ptr() {
char have[16];
int len = fmt(have, sizeof(have), "%p %p", (void*)0xabcd, (void*)0x0);
ASSERT_EQ("0xabcd 0x0", have);
ASSERT_EQ(10, len);
ASSERT_EQ('\0', have[len]);
}
void check_null() {
int len = fmt(0, 0, "%s", "abcd1234efgh5678");
ASSERT_EQ(16, len);
}
void check_exact_len() {
char have[8];
int len = fmt(have, sizeof(have), "%s", "12345678");
ASSERT_EQ("1234567", have);
ASSERT_EQ(8, len);
ASSERT_EQ('\0', have[7]);
}
void check_exceed_len() {
char have[8];
int len = fmt(have, sizeof(have), "%s", "123456789abcedf");
ASSERT_EQ("1234567", have);
ASSERT_EQ(15, len);
ASSERT_EQ('\0', have[7]);
}
int main() {
TEST_INIT;
TEST_ADD(check_dec);
TEST_ADD(check_dec_long);
TEST_ADD(check_hex);
TEST_ADD(check_hex_long);
TEST_ADD(check_char);
TEST_ADD(check_ptr);
TEST_ADD(check_null);
TEST_ADD(check_exact_len);
TEST_ADD(check_exceed_len);
return TEST_RUN;
}
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