From 8aed1ee8f79763df9e93bd195273bdddfd29ac09 Mon Sep 17 00:00:00 2001 From: Anton Ivanov Date: Mon, 28 Dec 2020 01:17:20 +0300 Subject: [PATCH] Unit tests for encoding/decoding of base types --- tests/test_main.cpp | 1 + tests/test_marshalls.h | 158 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 159 insertions(+) create mode 100644 tests/test_marshalls.h diff --git a/tests/test_main.cpp b/tests/test_main.cpp index ca1fe234c09..d837702eb0c 100644 --- a/tests/test_main.cpp +++ b/tests/test_main.cpp @@ -49,6 +49,7 @@ #include "test_json.h" #include "test_list.h" #include "test_lru.h" +#include "test_marshalls.h" #include "test_math.h" #include "test_method_bind.h" #include "test_node_path.h" diff --git a/tests/test_marshalls.h b/tests/test_marshalls.h new file mode 100644 index 00000000000..30a25771f23 --- /dev/null +++ b/tests/test_marshalls.h @@ -0,0 +1,158 @@ +/*************************************************************************/ +/* test_marshalls.h */ +/*************************************************************************/ +/* This file is part of: */ +/* GODOT ENGINE */ +/* https://godotengine.org */ +/*************************************************************************/ +/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */ +/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */ +/* */ +/* Permission is hereby granted, free of charge, to any person obtaining */ +/* a copy of this software and associated documentation files (the */ +/* "Software"), to deal in the Software without restriction, including */ +/* without limitation the rights to use, copy, modify, merge, publish, */ +/* distribute, sublicense, and/or sell copies of the Software, and to */ +/* permit persons to whom the Software is furnished to do so, subject to */ +/* the following conditions: */ +/* */ +/* The above copyright notice and this permission notice shall be */ +/* included in all copies or substantial portions of the Software. */ +/* */ +/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */ +/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */ +/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/ +/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */ +/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */ +/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */ +/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ +/*************************************************************************/ + +#ifndef TEST_MARSHALLS_H +#define TEST_MARSHALLS_H + +#include "core/io/marshalls.h" + +#include "tests/test_macros.h" + +namespace TestMarshalls { + +TEST_CASE("[Marshalls] Unsigned 16 bit integer encoding") { + uint8_t arr[2]; + + unsigned int actual_size = encode_uint16(0x1234, arr); + CHECK(actual_size == sizeof(uint16_t)); + CHECK_MESSAGE(arr[0] == 0x34, "First encoded byte value should be equal to low order byte value."); + CHECK_MESSAGE(arr[1] == 0x12, "Last encoded byte value should be equal to high order byte value."); +} + +TEST_CASE("[Marshalls] Unsigned 32 bit integer encoding") { + uint8_t arr[4]; + + unsigned int actual_size = encode_uint32(0x12345678, arr); + CHECK(actual_size == sizeof(uint32_t)); + CHECK_MESSAGE(arr[0] == 0x78, "First encoded byte value should be equal to low order byte value."); + CHECK(arr[1] == 0x56); + CHECK(arr[2] == 0x34); + CHECK_MESSAGE(arr[3] == 0x12, "Last encoded byte value should be equal to high order byte value."); +} + +TEST_CASE("[Marshalls] Unsigned 64 bit integer encoding") { + uint8_t arr[8]; + + unsigned int actual_size = encode_uint64(0x0f123456789abcdef, arr); + CHECK(actual_size == sizeof(uint64_t)); + CHECK_MESSAGE(arr[0] == 0xef, "First encoded byte value should be equal to low order byte value."); + CHECK(arr[1] == 0xcd); + CHECK(arr[2] == 0xab); + CHECK(arr[3] == 0x89); + CHECK(arr[4] == 0x67); + CHECK(arr[5] == 0x45); + CHECK(arr[6] == 0x23); + CHECK_MESSAGE(arr[7] == 0xf1, "Last encoded byte value should be equal to high order byte value."); +} + +TEST_CASE("[Marshalls] Unsigned 16 bit integer decoding") { + uint8_t arr[] = { 0x34, 0x12 }; + + CHECK(decode_uint16(arr) == 0x1234); +} + +TEST_CASE("[Marshalls] Unsigned 32 bit integer decoding") { + uint8_t arr[] = { 0x78, 0x56, 0x34, 0x12 }; + + CHECK(decode_uint32(arr) == 0x12345678); +} + +TEST_CASE("[Marshalls] Unsigned 64 bit integer decoding") { + uint8_t arr[] = { 0xef, 0xcd, 0xab, 0x89, 0x67, 0x45, 0x23, 0xf1 }; + + CHECK(decode_uint64(arr) == 0x0f123456789abcdef); +} + +TEST_CASE("[Marshalls] Floating point single precision encoding") { + uint8_t arr[4]; + + // Decimal: 0.15625 + // IEEE 754 single-precision binary floating-point format: + // sign exponent (8 bits) fraction (23 bits) + // 0 01111100 01000000000000000000000 + // Hexadecimal: 0x3E200000 + unsigned int actual_size = encode_float(0.15625f, arr); + CHECK(actual_size == sizeof(uint32_t)); + CHECK(arr[0] == 0x00); + CHECK(arr[1] == 0x00); + CHECK(arr[2] == 0x20); + CHECK(arr[3] == 0x3e); +} + +TEST_CASE("[Marshalls] Floating point double precision encoding") { + uint8_t arr[8]; + + // Decimal: 0.333333333333333314829616256247390992939472198486328125 + // IEEE 754 double-precision binary floating-point format: + // sign exponent (11 bits) fraction (52 bits) + // 0 01111111101 0101010101010101010101010101010101010101010101010101 + // Hexadecimal: 0x3FD5555555555555 + unsigned int actual_size = encode_double(0.33333333333333333, arr); + CHECK(actual_size == sizeof(uint64_t)); + CHECK(arr[0] == 0x55); + CHECK(arr[1] == 0x55); + CHECK(arr[2] == 0x55); + CHECK(arr[3] == 0x55); + CHECK(arr[4] == 0x55); + CHECK(arr[5] == 0x55); + CHECK(arr[6] == 0xd5); + CHECK(arr[7] == 0x3f); +} + +TEST_CASE("[Marshalls] Floating point single precision decoding") { + uint8_t arr[] = { 0x00, 0x00, 0x20, 0x3e }; + + // See floating point encoding test case for details behind expected values + CHECK(decode_float(arr) == 0.15625f); +} + +TEST_CASE("[Marshalls] Floating point double precision decoding") { + uint8_t arr[] = { 0x55, 0x55, 0x55, 0x55, 0x55, 0x55, 0xd5, 0x3f }; + + // See floating point encoding test case for details behind expected values + CHECK(decode_double(arr) == 0.33333333333333333); +} + +TEST_CASE("[Marshalls] C string encoding") { + char cstring[] = "Godot"; // 5 characters + uint8_t data[6]; + + int actual_size = encode_cstring(cstring, data); + CHECK(actual_size == 6); + CHECK(data[0] == 'G'); + CHECK(data[1] == 'o'); + CHECK(data[2] == 'd'); + CHECK(data[3] == 'o'); + CHECK(data[4] == 't'); + CHECK(data[5] == '\0'); +} +} // namespace TestMarshalls + +#endif // TEST_MARSHALLS_H