330 lines
11 KiB
C++
330 lines
11 KiB
C++
/*************************************************************************/
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/* test_marshalls.h */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
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/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#ifndef TEST_MARSHALLS_H
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#define TEST_MARSHALLS_H
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#include "core/io/marshalls.h"
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#include "tests/test_macros.h"
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namespace TestMarshalls {
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TEST_CASE("[Marshalls] Unsigned 16 bit integer encoding") {
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uint8_t arr[2];
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unsigned int actual_size = encode_uint16(0x1234, arr);
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CHECK(actual_size == sizeof(uint16_t));
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CHECK_MESSAGE(arr[0] == 0x34, "First encoded byte value should be equal to low order byte value.");
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CHECK_MESSAGE(arr[1] == 0x12, "Last encoded byte value should be equal to high order byte value.");
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}
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TEST_CASE("[Marshalls] Unsigned 32 bit integer encoding") {
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uint8_t arr[4];
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unsigned int actual_size = encode_uint32(0x12345678, arr);
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CHECK(actual_size == sizeof(uint32_t));
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CHECK_MESSAGE(arr[0] == 0x78, "First encoded byte value should be equal to low order byte value.");
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CHECK(arr[1] == 0x56);
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CHECK(arr[2] == 0x34);
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CHECK_MESSAGE(arr[3] == 0x12, "Last encoded byte value should be equal to high order byte value.");
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}
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TEST_CASE("[Marshalls] Unsigned 64 bit integer encoding") {
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uint8_t arr[8];
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unsigned int actual_size = encode_uint64(0x0f123456789abcdef, arr);
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CHECK(actual_size == sizeof(uint64_t));
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CHECK_MESSAGE(arr[0] == 0xef, "First encoded byte value should be equal to low order byte value.");
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CHECK(arr[1] == 0xcd);
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CHECK(arr[2] == 0xab);
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CHECK(arr[3] == 0x89);
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CHECK(arr[4] == 0x67);
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CHECK(arr[5] == 0x45);
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CHECK(arr[6] == 0x23);
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CHECK_MESSAGE(arr[7] == 0xf1, "Last encoded byte value should be equal to high order byte value.");
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}
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TEST_CASE("[Marshalls] Unsigned 16 bit integer decoding") {
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uint8_t arr[] = { 0x34, 0x12 };
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CHECK(decode_uint16(arr) == 0x1234);
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}
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TEST_CASE("[Marshalls] Unsigned 32 bit integer decoding") {
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uint8_t arr[] = { 0x78, 0x56, 0x34, 0x12 };
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CHECK(decode_uint32(arr) == 0x12345678);
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}
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TEST_CASE("[Marshalls] Unsigned 64 bit integer decoding") {
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uint8_t arr[] = { 0xef, 0xcd, 0xab, 0x89, 0x67, 0x45, 0x23, 0xf1 };
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CHECK(decode_uint64(arr) == 0x0f123456789abcdef);
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}
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TEST_CASE("[Marshalls] Floating point single precision encoding") {
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uint8_t arr[4];
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// Decimal: 0.15625
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// IEEE 754 single-precision binary floating-point format:
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// sign exponent (8 bits) fraction (23 bits)
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// 0 01111100 01000000000000000000000
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// Hexadecimal: 0x3E200000
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unsigned int actual_size = encode_float(0.15625f, arr);
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CHECK(actual_size == sizeof(uint32_t));
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CHECK(arr[0] == 0x00);
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CHECK(arr[1] == 0x00);
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CHECK(arr[2] == 0x20);
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CHECK(arr[3] == 0x3e);
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}
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TEST_CASE("[Marshalls] Floating point double precision encoding") {
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uint8_t arr[8];
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// Decimal: 0.333333333333333314829616256247390992939472198486328125
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// IEEE 754 double-precision binary floating-point format:
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// sign exponent (11 bits) fraction (52 bits)
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// 0 01111111101 0101010101010101010101010101010101010101010101010101
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// Hexadecimal: 0x3FD5555555555555
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unsigned int actual_size = encode_double(0.33333333333333333, arr);
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CHECK(actual_size == sizeof(uint64_t));
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CHECK(arr[0] == 0x55);
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CHECK(arr[1] == 0x55);
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CHECK(arr[2] == 0x55);
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CHECK(arr[3] == 0x55);
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CHECK(arr[4] == 0x55);
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CHECK(arr[5] == 0x55);
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CHECK(arr[6] == 0xd5);
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CHECK(arr[7] == 0x3f);
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}
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TEST_CASE("[Marshalls] Floating point single precision decoding") {
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uint8_t arr[] = { 0x00, 0x00, 0x20, 0x3e };
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// See floating point encoding test case for details behind expected values
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CHECK(decode_float(arr) == 0.15625f);
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}
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TEST_CASE("[Marshalls] Floating point double precision decoding") {
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uint8_t arr[] = { 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0xd5, 0x3f };
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// See floating point encoding test case for details behind expected values
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CHECK(decode_double(arr) == 0.33333333333333333);
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}
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TEST_CASE("[Marshalls] C string encoding") {
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char cstring[] = "Godot"; // 5 characters
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uint8_t data[6];
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int actual_size = encode_cstring(cstring, data);
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CHECK(actual_size == 6);
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CHECK(data[0] == 'G');
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CHECK(data[1] == 'o');
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CHECK(data[2] == 'd');
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CHECK(data[3] == 'o');
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CHECK(data[4] == 't');
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CHECK(data[5] == '\0');
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}
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TEST_CASE("[Marshalls] NIL Variant encoding") {
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int r_len;
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Variant variant;
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uint8_t buffer[4];
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CHECK(encode_variant(variant, buffer, r_len) == OK);
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CHECK_MESSAGE(r_len == 4, "Length == 4 bytes for Variant::Type");
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CHECK_MESSAGE(buffer[0] == 0x00, "Variant::NIL");
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CHECK(buffer[1] == 0x00);
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CHECK(buffer[2] == 0x00);
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CHECK(buffer[3] == 0x00);
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// No value
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}
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TEST_CASE("[Marshalls] INT 32 bit Variant encoding") {
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int r_len;
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Variant variant(0x12345678);
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uint8_t buffer[8];
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CHECK(encode_variant(variant, buffer, r_len) == OK);
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CHECK_MESSAGE(r_len == 8, "Length == 4 bytes for Variant::Type + 4 bytes for int32_t");
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CHECK_MESSAGE(buffer[0] == 0x02, "Variant::INT");
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CHECK(buffer[1] == 0x00);
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CHECK(buffer[2] == 0x00);
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CHECK(buffer[3] == 0x00);
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// Check value
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CHECK(buffer[4] == 0x78);
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CHECK(buffer[5] == 0x56);
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CHECK(buffer[6] == 0x34);
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CHECK(buffer[7] == 0x12);
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}
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TEST_CASE("[Marshalls] INT 64 bit Variant encoding") {
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int r_len;
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Variant variant(uint64_t(0x0f123456789abcdef));
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uint8_t buffer[12];
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CHECK(encode_variant(variant, buffer, r_len) == OK);
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CHECK_MESSAGE(r_len == 12, "Length == 4 bytes for Variant::Type + 8 bytes for int64_t");
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CHECK_MESSAGE(buffer[0] == 0x02, "Variant::INT");
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CHECK(buffer[1] == 0x00);
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CHECK_MESSAGE(buffer[2] == 0x01, "ENCODE_FLAG_64");
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CHECK(buffer[3] == 0x00);
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// Check value
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CHECK(buffer[4] == 0xef);
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CHECK(buffer[5] == 0xcd);
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CHECK(buffer[6] == 0xab);
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CHECK(buffer[7] == 0x89);
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CHECK(buffer[8] == 0x67);
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CHECK(buffer[9] == 0x45);
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CHECK(buffer[10] == 0x23);
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CHECK(buffer[11] == 0xf1);
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}
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TEST_CASE("[Marshalls] FLOAT single precision Variant encoding") {
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int r_len;
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Variant variant(0.15625f);
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uint8_t buffer[8];
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CHECK(encode_variant(variant, buffer, r_len) == OK);
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CHECK_MESSAGE(r_len == 8, "Length == 4 bytes for Variant::Type + 4 bytes for float");
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CHECK_MESSAGE(buffer[0] == 0x03, "Variant::FLOAT");
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CHECK(buffer[1] == 0x00);
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CHECK(buffer[2] == 0x00);
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CHECK(buffer[3] == 0x00);
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// Check value
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CHECK(buffer[4] == 0x00);
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CHECK(buffer[5] == 0x00);
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CHECK(buffer[6] == 0x20);
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CHECK(buffer[7] == 0x3e);
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}
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TEST_CASE("[Marshalls] FLOAT double precision Variant encoding") {
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int r_len;
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Variant variant(0.33333333333333333);
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uint8_t buffer[12];
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CHECK(encode_variant(variant, buffer, r_len) == OK);
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CHECK_MESSAGE(r_len == 12, "Length == 4 bytes for Variant::Type + 8 bytes for double");
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CHECK_MESSAGE(buffer[0] == 0x03, "Variant::FLOAT");
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CHECK(buffer[1] == 0x00);
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CHECK_MESSAGE(buffer[2] == 0x01, "ENCODE_FLAG_64");
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CHECK(buffer[3] == 0x00);
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// Check value
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CHECK(buffer[4] == 0x55);
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CHECK(buffer[5] == 0x55);
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CHECK(buffer[6] == 0x55);
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CHECK(buffer[7] == 0x55);
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CHECK(buffer[8] == 0x55);
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CHECK(buffer[9] == 0x55);
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CHECK(buffer[10] == 0xd5);
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CHECK(buffer[11] == 0x3f);
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}
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TEST_CASE("[Marshalls] Invalid data Variant decoding") {
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Variant variant;
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int r_len = 0;
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uint8_t some_buffer[1] = { 0x00 };
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uint8_t out_of_range_type_buffer[4] = { 0xff }; // Greater than Variant::VARIANT_MAX
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CHECK(decode_variant(variant, some_buffer, /* less than 4 */ 1, &r_len) == ERR_INVALID_DATA);
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CHECK(r_len == 0);
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CHECK(decode_variant(variant, out_of_range_type_buffer, 4, &r_len) == ERR_INVALID_DATA);
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CHECK(r_len == 0);
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}
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TEST_CASE("[Marshalls] NIL Variant decoding") {
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Variant variant;
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int r_len;
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uint8_t buffer[] = {
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0x00, 0x00, 0x00, 0x00 // Variant::NIL
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};
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CHECK(decode_variant(variant, buffer, 4, &r_len) == OK);
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CHECK(r_len == 4);
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CHECK(variant == Variant());
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}
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TEST_CASE("[Marshalls] INT 32 bit Variant decoding") {
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Variant variant;
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int r_len;
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uint8_t buffer[] = {
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0x02, 0x00, 0x00, 0x00, // Variant::INT
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0x78, 0x56, 0x34, 0x12 // value
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};
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CHECK(decode_variant(variant, buffer, 8, &r_len) == OK);
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CHECK(r_len == 8);
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CHECK(variant == Variant(0x12345678));
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}
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TEST_CASE("[Marshalls] INT 64 bit Variant decoding") {
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Variant variant;
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int r_len;
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uint8_t buffer[] = {
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0x02, 0x00, 0x01, 0x00, // Variant::INT & ENCODE_FLAG_64
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0xef, 0xcd, 0xab, 0x89, 0x67, 0x45, 0x23, 0xf1 // value
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};
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CHECK(decode_variant(variant, buffer, 12, &r_len) == OK);
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CHECK(r_len == 12);
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CHECK(variant == Variant(uint64_t(0x0f123456789abcdef)));
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}
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TEST_CASE("[Marshalls] FLOAT single precision Variant decoding") {
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Variant variant;
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int r_len;
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uint8_t buffer[] = {
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0x03, 0x00, 0x00, 0x00, // Variant::FLOAT
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0x00, 0x00, 0x20, 0x3e // value
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};
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CHECK(decode_variant(variant, buffer, 8, &r_len) == OK);
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CHECK(r_len == 8);
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CHECK(variant == Variant(0.15625f));
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}
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TEST_CASE("[Marshalls] FLOAT double precision Variant decoding") {
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Variant variant;
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int r_len;
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uint8_t buffer[] = {
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0x03, 0x00, 0x01, 0x00, // Variant::FLOAT & ENCODE_FLAG_64
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0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0xd5, 0x3f // value
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};
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CHECK(decode_variant(variant, buffer, 12, &r_len) == OK);
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CHECK(r_len == 12);
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CHECK(variant == Variant(0.33333333333333333));
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}
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} // namespace TestMarshalls
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#endif // TEST_MARSHALLS_H
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