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#include <algorithm>
#include <gtest/gtest.h>
#include "i2ctcpv1.h"
using std::min;
const uint8_t data[] = { 0xff, 0x00, 0xde, 0xad, 0xbe, 0xef, };
const size_t data_len = sizeof(data);
const size_t chunk_size = 6;
char * send_data = nullptr;
size_t send_size = 0;
TEST(i2ctcp, send) {
i2ctcp_msg_t send_msg = {
.addr = 0x1122,
.data = (char *) data,
.length = data_len,
};
ASSERT_TRUE(i2ctcp_write(&send_msg, &send_data, &send_size));
ASSERT_NE(send_data, nullptr);
ASSERT_GE(send_size, 0);
}
TEST(i2ctcp, recv) {
i2ctcp_msg_t recv_msg;
i2ctcp_read_reset(&recv_msg);
for (size_t i = 0; i < send_size; i += chunk_size) {
size_t expected_size = min(send_size, i + chunk_size) - i;
int parsed = i2ctcp_read(&recv_msg, send_data + i, expected_size);
EXPECT_GE(parsed, 0);
if (i + expected_size == send_size)
EXPECT_EQ(parsed, 0);
else
EXPECT_GT(parsed, 0);
}
ASSERT_NE(recv_msg.data, nullptr);
ASSERT_EQ(recv_msg.length, data_len);
ASSERT_EQ(0, memcmp(recv_msg.data, data, data_len));
}
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