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test.cpp
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#define CATCH_CONFIG_MAIN
#include <catch2/catch.hpp>
#include "include/modern-coapp.hpp"
TEST_CASE( "Empty PDU should fail to parse", "[parse]" ) {
REQUIRE_THROWS( coapp::pdu::from({}) );
}
TEST_CASE( "PDU with invalid header should fail to parse", "[parse]" ) {
uint8_t header = 0b11000000u; // Ver: 3, Type: 0, TKL: 0
std::vector<uint8_t> raw_pdu = {
header, 0, 0, 0
};
REQUIRE_THROWS( coapp::pdu::from(std::move(raw_pdu)) );
header = 0b01001001u; // Ver: 1, Type: 0, TKL: 9
raw_pdu = {
header, 0, 0, 0
};
REQUIRE_THROWS( coapp::pdu::from(std::move(raw_pdu)) );
}
TEST_CASE( "PDU with valid header should parse correctly", "[parse]" ) {
uint8_t header = 0b01101000u; // Ver: 1, Type: 2, TKL: 8
std::vector<uint8_t> raw_pdu = {
header,
2, // Code
1,0, // MID: 0000 0001 0000 0000 => 256
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08
};
auto pdu = coapp::pdu::from(std::move(raw_pdu));
REQUIRE( pdu.version() == 1 );
REQUIRE( pdu.type() == 2 );
REQUIRE( pdu.message_id() == 256 );
REQUIRE( pdu.code() == 2 );
REQUIRE( pdu.token() == std::vector<uint8_t> { 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08 } );
}
TEST_CASE( "PDU with payload should parse correctly", "[parse]" ) {
uint8_t header = 0b01101000u; // Ver: 1, Type: 2, TKL: 8
std::vector<uint8_t> raw_pdu = {
header,
2, // Code
1,0, // MID: 0000 0001 0000 0000 => 256
0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, // Token
0xff, // Payload separator
0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41, 0x41
};
auto pdu = coapp::pdu::from(raw_pdu);
REQUIRE( pdu.payload() == "AAAAAAAAAAAAAA" );
REQUIRE ( pdu.to_bytes() == raw_pdu );
}
TEST_CASE( "PDU with invalid options should fail to parse", "[parse]" ) {
std::vector<uint8_t> raw_pdu = {
0b01100000u, // Ver: 1, Type: 2, TKL: 0
2, // Code
1,0, // MID: 0000 0001 0000 0000 => 256
0b00010001, // Option length == 1, but no value
};
REQUIRE_THROWS( coapp::pdu::from(std::move(raw_pdu)) );
}
TEST_CASE( "PDU with valid option should parse correctly", "[parse]" ) {
std::vector<uint8_t> raw_pdu = {
0b01100000u, // Ver: 1, Type: 2, TKL: 0
2, // Code
1,0, // MID: 0000 0001 0000 0000 => 256
0b00010001, // Option delta = 1, Option length = 1
0xff // Option value = 0xff
};
auto pdu = coapp::pdu::from(raw_pdu);
auto& options = pdu.options();
REQUIRE (options.size() == 1);
REQUIRE (options.begin()->first == 1);
REQUIRE (options.begin()->second == std::vector<uint8_t> { 0xff });
REQUIRE (pdu.to_bytes() == raw_pdu);
}
TEST_CASE( "[1] PDU with multiple options should parse correctly", "[parse]" ) {
std::vector<uint8_t> raw_pdu = {
0b01100000u, // Ver: 1, Type: 2, TKL: 0
2, // Code
1,0, // MID: 0000 0001 0000 0000 => 256
0b00010001, // Option delta = 1, Option length = 1
0xff, // Option value = 0xff
0b00010001, // Option delta = 1, Option length = 1
0xff, // Option value = 0xff
0b00110011, // Option delta = 3, Option length = 3
0xff, 0xff, 0xff, // Option value = 0xff 0xff 0xff
0xff, // Payload separator
0x42, 0x42, 0x42, 0x42 // Payload
};
auto pdu = coapp::pdu::from(raw_pdu);
auto& options = pdu.options();
REQUIRE (options.size() == 3);
auto opt_it = options.begin();
REQUIRE (opt_it->first == 1);
REQUIRE (opt_it->second == std::vector<uint8_t> { 0xff });
opt_it++;
REQUIRE (opt_it->first == 2);
REQUIRE (opt_it->second == std::vector<uint8_t> { 0xff });
opt_it++;
REQUIRE (opt_it->first == 5);
REQUIRE (opt_it->second == std::vector<uint8_t> { 0xff, 0xff, 0xff });
REQUIRE (pdu.payload() == "BBBB");
REQUIRE (pdu.to_bytes() == raw_pdu);
}
TEST_CASE( "[2] PDU with multiple options should parse correctly 2", "[parse]" ) {
std::vector<uint8_t> raw_pdu = {
0b01100000u, // Ver: 1, Type: 2, TKL: 0
2, // Code
1,0, // MID: 0000 0001 0000 0000 => 256
0b00010001, // Option delta = 1, Option length = 1
0xff, // Option value = 0xff
0b00010001, // Option delta = 1, Option length = 1
0xff, // Option value = 0xff
0b00110011, // Option delta = 3, Option length = 3
0xff, 0xff, 0xff, // Option value = 0xff 0xff 0xff
0b11010011, // Option delta = 13, Option length = 3
0xff, // Option delta - 13 = 255 => Option delta = 268
0xff, 0xff, 0xff, // Option value = 0xff 0xff 0xff
0b11100011, // Option delta = 14, Option length = 3
0xff, 0xff, // Option delta - 269 = 65535 => Option delta = 65804
0xff, 0xff, 0xff, // Option value = 0xff 0xff 0xff
0xff, // Payload separator
0x42, 0x42, 0x42, 0x42 // Payload
};
auto pdu = coapp::pdu::from(raw_pdu);
auto& options = pdu.options();
REQUIRE (options.size() == 5);
auto opt_it = options.begin();
REQUIRE (opt_it->first == 1);
REQUIRE (opt_it->second == std::vector<uint8_t> { 0xff });
opt_it++;
REQUIRE (opt_it->first == 2);
REQUIRE (opt_it->second == std::vector<uint8_t> { 0xff });
opt_it++;
REQUIRE (opt_it->first == 5);
REQUIRE (opt_it->second == std::vector<uint8_t> { 0xff, 0xff, 0xff });
opt_it++;
REQUIRE (opt_it->first == 273);
REQUIRE (opt_it->second == std::vector<uint8_t> { 0xff, 0xff, 0xff });
opt_it++;
REQUIRE (opt_it->first == 66077);
REQUIRE (opt_it->second == std::vector<uint8_t> { 0xff, 0xff, 0xff });
REQUIRE (pdu.payload() == "BBBB");
REQUIRE (pdu.to_bytes() == raw_pdu);
}
// Adapted from libcoap
TEST_CASE( "libcoap 1", "[parse]" ) {
std::vector<uint8_t> raw_pdu = {
0x62, 0x44, 0x12, 0x34, 0x00, 0x00, 0x8d, 0xf2,
'c', 'o', 'a', 'p', ':', '/', '/', 'e',
'x', 'a', 'm', 'p', 'l', 'e', '.', 'c',
'o', 'm', '/', '1', '2', '3', '4', '5',
'/', '%', '3', 'F', 'x', 'y', 'z', '/',
'3', '0', '4', '8', '2', '3', '4', '2',
'3', '4', '/', '2', '3', '4', '0', '2',
'3', '4', '8', '2', '3', '4', '/', '2',
'3', '9', '0', '8', '4', '2', '3', '4',
'-', '2', '3', '/', '%', 'A', 'B', '%',
'3', '0', '%', 'a', 'f', '/', '+', '1',
'2', '3', '/', 'h', 'f', 'k', 's', 'd',
'h', '/', '2', '3', '4', '8', '0', '-',
'2', '3', '4', '-', '9', '8', '2', '3',
'5', '/', '1', '2', '0', '4', '/', '2',
'4', '3', '5', '4', '6', '3', '4', '5',
'3', '4', '5', '2', '4', '3', '/', '0',
'1', '9', '8', 's', 'd', 'n', '3', '-',
'a', '-', '3', '/', '/', '/', 'a', 'f',
'f', '0', '9', '3', '4', '/', '9', '7',
'u', '2', '1', '4', '1', '/', '0', '0',
'0', '2', '/', '3', '9', '3', '2', '4',
'2', '3', '5', '3', '2', '/', '5', '6',
'2', '3', '4', '0', '2', '3', '/', '-',
'-', '-', '-', '/', '=', '1', '2', '3',
'4', '=', '/', '0', '9', '8', '1', '4',
'1', '-', '9', '5', '6', '4', '6', '4',
'3', '/', '2', '1', '9', '7', '0', '-',
'-', '-', '-', '-', '/', '8', '2', '3',
'6', '4', '9', '2', '3', '4', '7', '2',
'w', 'e', 'r', 'e', 'r', 'e', 'w', 'r',
'0', '-', '9', '2', '1', '-', '3', '9',
'1', '2', '3', '-', '3', '4', '/', 0x0d,
0x01, '/', '/', '4', '9', '2', '4', '0',
'3', '-', '-', '0', '9', '8', '/', 0xc1,
'*', 0xff, 'd', 'a', 't', 'a'
};
auto pdu = coapp::pdu::from(raw_pdu);
REQUIRE (pdu.type() == 2);
REQUIRE (pdu.message_id() == 0x1234);
REQUIRE (pdu.token() == std::vector<uint8_t> { 0x0, 0x0 });
auto& options = pdu.options();
auto opt_it = options.begin();
REQUIRE (options.size() == 3);
const char* data0 = "coap://example.com/12345/%3Fxyz/3048234234/23402348234/239084234-23/%AB%30%af/+123/hfksdh/23480-234-98235/1204/243546345345243/0198sdn3-a-3///aff0934/97u2141/0002/3932423532/56234023/----/=1234=/098141-9564643/21970-----/82364923472wererewr0-921-39123-34/";
const char* data1 = "//492403--098/";
const char* data2 = "*";
REQUIRE (opt_it->first == 8);
REQUIRE ( memcmp(data0, opt_it->second.data(), opt_it->second.size()) == 0 );
opt_it++;
REQUIRE (opt_it->first == 8);
REQUIRE ( memcmp(data1, opt_it->second.data(), opt_it->second.size()) == 0 );
opt_it++;
REQUIRE (opt_it->first == 20);
REQUIRE ( memcmp(data2, opt_it->second.data(), opt_it->second.size()) == 0 );
opt_it++;
REQUIRE (pdu.to_bytes() == raw_pdu);
}
TEST_CASE( "should be able to insert options in any order", "[build]" ) {
std::vector<uint8_t> target_bytes = {
0b01100000u, // Ver: 1, Type: 2, TKL: 0
2, // Code
1,0, // MID: 0000 0001 0000 0000 => 256
0b00010001, // Option delta = 1, Option length = 1
0xff, // Option value = 0xff
0b00010001, // Option delta = 1, Option length = 1
0xff, // Option value = 0xff
0b00110011, // Option delta = 3, Option length = 3
0xff, 0xff, 0xff, // Option value = 0xff 0xff 0xff
0b11010011, // Option delta = 13, Option length = 3
0xff, // Option delta - 13 = 255 => Option delta = 268
0xff, 0xff, 0xff, // Option value = 0xff 0xff 0xff
0b11100011, // Option delta = 14, Option length = 3
0xff, 0xff, // Option delta - 269 = 65535 => Option delta = 65804
0xff, 0xff, 0xff, // Option value = 0xff 0xff 0xff
0xff, // Payload separator
0x42, 0x42, 0x42, 0x42 // Payload
};
coapp::pdu pdu;
pdu.set_type(coapp::Type::Acknowledgement);
pdu.set_code(coapp::Code::REQUEST_POST);
pdu.set_message_id(256);
pdu.add_option(
66077,
{ 0xff, 0xff, 0xff }
);
pdu.add_option(
5,
{ 0xff, 0xff, 0xff }
);
pdu.add_option(
1,
{ 0xff }
);
pdu.add_option(
2,
{ 0xff }
);
pdu.add_option(
273,
{ 0xff, 0xff, 0xff }
);
pdu.set_payload({ 0x42, 0x42, 0x42, 0x42 });
REQUIRE (pdu.to_bytes() == target_bytes);
}