mirror of
https://github.com/freebsd/freebsd-src
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214 lines
8.4 KiB
C
214 lines
8.4 KiB
C
/*
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* Copyright (c) 2014-2020 Pavel Kalvoda <me@pavelkalvoda.com>
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*
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* libcbor is free software; you can redistribute it and/or modify
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* it under the terms of the MIT license. See LICENSE for details.
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*/
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#include <math.h>
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#include "assertions.h"
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#include "cbor.h"
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unsigned char buffer[512];
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static void test_bools(void **_CBOR_UNUSED(_state)) {
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assert_size_equal(1, cbor_encode_bool(false, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF4}), 1);
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assert_size_equal(1, cbor_encode_bool(true, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF5}), 1);
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}
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static void test_null(void **_CBOR_UNUSED(_state)) {
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assert_size_equal(1, cbor_encode_null(buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF6}), 1);
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}
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static void test_undef(void **_CBOR_UNUSED(_state)) {
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assert_size_equal(1, cbor_encode_undef(buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF7}), 1);
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}
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static void test_break(void **_CBOR_UNUSED(_state)) {
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assert_size_equal(1, cbor_encode_break(buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xFF}), 1);
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}
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/* Check that encode(decode(buffer)) = buffer for a valid half-float in the
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* buffer.*/
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static void assert_half_float_codec_identity(void) {
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unsigned char secondary_buffer[3];
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struct cbor_load_result res;
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// Load and check data in buffer
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cbor_item_t *half_float = cbor_load(buffer, 3, &res);
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assert_size_equal(res.error.code, CBOR_ERR_NONE);
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assert_true(cbor_isa_float_ctrl(half_float));
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assert_true(cbor_is_float(half_float));
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assert_size_equal(cbor_float_get_width(half_float), CBOR_FLOAT_16);
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// Encode again and check equality
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assert_size_equal(3, cbor_encode_half(cbor_float_get_float2(half_float),
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secondary_buffer, 3));
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assert_memory_equal(buffer, secondary_buffer, 3);
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cbor_decref(&half_float);
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}
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static void test_half(void **_CBOR_UNUSED(_state)) {
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assert_size_equal(3, cbor_encode_half(1.5f, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x3E, 0x00}), 3);
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assert_half_float_codec_identity();
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assert_size_equal(3, cbor_encode_half(-0.0f, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x80, 0x00}), 3);
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assert_half_float_codec_identity();
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assert_size_equal(3, cbor_encode_half(0.0f, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x00, 0x00}), 3);
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assert_half_float_codec_identity();
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assert_size_equal(3, cbor_encode_half(65504.0f, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x7B, 0xFF}), 3);
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assert_half_float_codec_identity();
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assert_size_equal(3, cbor_encode_half(0.00006103515625f, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x04, 0x00}), 3);
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assert_half_float_codec_identity();
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assert_size_equal(3, cbor_encode_half(-4.0f, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0xC4, 0x00}), 3);
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assert_half_float_codec_identity();
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/* Smallest representable value */
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assert_size_equal(3, cbor_encode_half(5.960464477539063e-8f, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x00, 0x01}), 3);
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assert_half_float_codec_identity();
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/* Smaller than the smallest, approximate magnitude representation */
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assert_size_equal(3, cbor_encode_half(5.960464477539062e-8f, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x00, 0x01}), 3);
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assert_half_float_codec_identity();
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assert_size_equal(3, cbor_encode_half(4.172325134277344e-7f, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x00, 0x07}), 3);
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assert_half_float_codec_identity();
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assert_size_equal(3, cbor_encode_half(6.097555160522461e-5f, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x03, 0xff}), 3);
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assert_half_float_codec_identity();
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assert_size_equal(3, cbor_encode_half(6.100535392761231e-5f, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x04, 0x00}), 3);
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assert_half_float_codec_identity();
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/* Smaller than the smallest and even the magnitude cannot be represented,
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round off to zero */
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assert_size_equal(3, cbor_encode_half(1e-25f, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x00, 0x00}), 3);
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assert_half_float_codec_identity();
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assert_size_equal(3, cbor_encode_half(1.1920928955078125e-7, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x00, 0x02}), 3);
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assert_half_float_codec_identity();
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assert_size_equal(3, cbor_encode_half(-1.1920928955078124e-7, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x80, 0x02}), 3);
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assert_half_float_codec_identity();
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assert_size_equal(3, cbor_encode_half(INFINITY, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x7C, 0x00}), 3);
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assert_half_float_codec_identity();
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}
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static void test_half_special(void **_CBOR_UNUSED(_state)) {
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assert_size_equal(3, cbor_encode_half(NAN, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x7E, 0x00}), 3);
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assert_half_float_codec_identity();
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// We discard all information bits in half-float NaNs. This is
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// not required for the core CBOR protocol (it is only a suggestion in
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// Section 3.9).
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// See https://github.com/PJK/libcbor/issues/215
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assert_size_equal(3, cbor_encode_half(nanf("2"), buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x7E, 0x00}), 3);
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assert_half_float_codec_identity();
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}
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static void test_half_infinity(void **_CBOR_UNUSED(_state)) {
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assert_size_equal(3, cbor_encode_half(INFINITY, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0x7C, 0x00}), 3);
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assert_half_float_codec_identity();
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assert_size_equal(3, cbor_encode_half(-INFINITY, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xF9, 0xFC, 0x00}), 3);
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assert_half_float_codec_identity();
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}
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static void test_float(void **_CBOR_UNUSED(_state)) {
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assert_size_equal(5, cbor_encode_single(3.4028234663852886e+38, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xFA, 0x7F, 0x7F, 0xFF, 0xFF}),
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5);
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assert_size_equal(5, cbor_encode_single(NAN, buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xFA, 0x7F, 0xC0, 0x00, 0x00}),
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5);
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#ifndef _WIN32
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// TODO: https://github.com/PJK/libcbor/issues/271
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assert_size_equal(5, cbor_encode_single(nanf("3"), buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xFA, 0x7F, 0xC0, 0x00, 0x03}),
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5);
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#endif
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assert_size_equal(5, cbor_encode_single(strtof("Inf", NULL), buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xFA, 0x7F, 0x80, 0x00, 0x00}),
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5);
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assert_size_equal(5, cbor_encode_single(strtof("-Inf", NULL), buffer, 512));
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assert_memory_equal(buffer, ((unsigned char[]){0xFA, 0xFF, 0x80, 0x00, 0x00}),
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5);
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}
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static void test_double(void **_CBOR_UNUSED(_state)) {
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assert_size_equal(9, cbor_encode_double(1.0e+300, buffer, 512));
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assert_memory_equal(
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buffer,
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((unsigned char[]){0xFB, 0x7E, 0x37, 0xE4, 0x3C, 0x88, 0x00, 0x75, 0x9C}),
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9);
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assert_size_equal(9, cbor_encode_double(nan(""), buffer, 512));
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assert_memory_equal(
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buffer,
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((unsigned char[]){0xFB, 0x7F, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}),
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9);
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#ifndef _WIN32
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// TODO: https://github.com/PJK/libcbor/issues/271
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assert_size_equal(9, cbor_encode_double(nan("3"), buffer, 512));
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assert_memory_equal(
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buffer,
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((unsigned char[]){0xFB, 0x7F, 0xF8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03}),
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9);
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#endif
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assert_size_equal(9, cbor_encode_double(strtod("Inf", NULL), buffer, 512));
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assert_memory_equal(
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buffer,
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((unsigned char[]){0xFB, 0x7F, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}),
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9);
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assert_size_equal(9, cbor_encode_double(strtod("-Inf", NULL), buffer, 512));
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assert_memory_equal(
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buffer,
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((unsigned char[]){0xFB, 0xFF, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}),
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9);
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}
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int main(void) {
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const struct CMUnitTest tests[] = {
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cmocka_unit_test(test_bools), cmocka_unit_test(test_null),
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cmocka_unit_test(test_undef), cmocka_unit_test(test_break),
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cmocka_unit_test(test_half), cmocka_unit_test(test_float),
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cmocka_unit_test(test_double), cmocka_unit_test(test_half_special),
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cmocka_unit_test(test_half_infinity),
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};
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return cmocka_run_group_tests(tests, NULL, NULL);
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}
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