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Added test for MbedCRC.h

pull/6442/head
Deepika 2018-03-23 13:53:17 -05:00
parent cffa1c055e
commit bf0393aaa9
1 changed files with 144 additions and 0 deletions
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TESTS/mbed_drivers/crc/main.cpp Normal file
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/* mbed Microcontroller Library
* Copyright (c) 2018 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "utest/utest.h"
#include "unity/unity.h"
#include "greentea-client/test_env.h"
#include "mbed.h"
using namespace utest::v1;
void test_supported_polynomials()
{
char test[] = "123456789";
uint32_t crc;
{
MbedCRC<POLY_7BIT_SD, 7> ct;
TEST_ASSERT_EQUAL(0, ct.compute((void *)test, strlen((const char*)test), &crc));
TEST_ASSERT_EQUAL(0xEA, crc);
}
{
MbedCRC<POLY_8BIT_CCITT, 8> ct;
TEST_ASSERT_EQUAL(0, ct.compute((void *)test, strlen((const char*)test), &crc));
TEST_ASSERT_EQUAL(0xF4, crc);
}
{
MbedCRC<POLY_16BIT_CCITT, 16> ct;
TEST_ASSERT_EQUAL(0, ct.compute((void *)test, strlen((const char*)test), &crc));
TEST_ASSERT_EQUAL(0x29B1, crc);
}
{
MbedCRC<POLY_16BIT_IBM, 16> ct;
TEST_ASSERT_EQUAL(0, ct.compute((void *)test, strlen((const char*)test), &crc));
TEST_ASSERT_EQUAL(0xBB3D, crc);
}
{
MbedCRC<POLY_32BIT_ANSI, 32> ct;
TEST_ASSERT_EQUAL(0, ct.compute((void *)test, strlen((const char*)test), &crc));
TEST_ASSERT_EQUAL(0xCBF43926, crc);
}
}
void test_partial_crc()
{
char test[] = "123456789";
uint32_t crc;
{
MbedCRC<POLY_16BIT_CCITT, 16> ct;
TEST_ASSERT_EQUAL(0, ct.compute_partial_start(&crc));
TEST_ASSERT_EQUAL(0, ct.compute_partial((void *)&test, 4, &crc));
TEST_ASSERT_EQUAL(0, ct.compute_partial((void *)&test[4], 5, &crc));
TEST_ASSERT_EQUAL(0, ct.compute_partial_stop(&crc));
TEST_ASSERT_EQUAL(0x29B1, crc);
}
}
void test_sd_crc()
{
MbedCRC<POLY_7BIT_SD, 7> crc7;
uint32_t crc;
char test[512];
test[0] = 0x40;
test[1] = 0x00;
test[2] = 0x00;
test[3] = 0x00;
test[4] = 0x00;
TEST_ASSERT_EQUAL(0, crc7.compute((void *)test, 5, &crc));
crc = (crc | 0x1 ) & 0xFF;
TEST_ASSERT_EQUAL(0x95, crc);
test[0] = 0x48;
test[1] = 0x00;
test[2] = 0x00;
test[3] = 0x01;
test[4] = 0xAA;
TEST_ASSERT_EQUAL(0, crc7.compute((void *)test, 5, &crc));
crc = (crc | 0x1 ) & 0xFF;
TEST_ASSERT_EQUAL(0x87, crc);
test[0] = 0x51;
test[1] = 0x00;
test[2] = 0x00;
test[3] = 0x00;
test[4] = 0x00;
TEST_ASSERT_EQUAL(0, crc7.compute((void *)test, 5, &crc));
crc = (crc | 0x1 ) & 0xFF;
TEST_ASSERT_EQUAL(0x55, crc);
MbedCRC<POLY_16BIT_CCITT, 16> crc16(0, 0, false, false);
memset(test, 0xFF, 512);
TEST_ASSERT_EQUAL(0, crc16.compute((void *)test, 512, &crc));
TEST_ASSERT_EQUAL(0x7FA1, crc);
}
void test_any_polynomial()
{
char test[] = "123456789";
uint32_t crc;
{
MbedCRC<0x3D65, 16> ct(0x0, 0xFFFF, 0, 0);
TEST_ASSERT_EQUAL(0, ct.compute((void *)test, strlen((const char*)test), &crc));
TEST_ASSERT_EQUAL(0xC2B7, crc);
}
{
MbedCRC<0x1EDC6F41, 32> ct(0xFFFFFFFF, 0xFFFFFFFF, 1, 1);
TEST_ASSERT_EQUAL(0, ct.compute((void *)test, strlen((const char*)test), &crc));
TEST_ASSERT_EQUAL(0xE3069283, crc);
}
}
Case cases[] = {
Case("Test supported polynomials", test_supported_polynomials),
Case("Test partial CRC", test_partial_crc),
Case("Test SD CRC polynomials", test_sd_crc),
Case("Test not supported polynomials", test_any_polynomial)
};
utest::v1::status_t greentea_test_setup(const size_t number_of_cases) {
GREENTEA_SETUP(15, "default_auto");
return greentea_test_setup_handler(number_of_cases);
}
Specification specification(greentea_test_setup, cases, greentea_test_teardown_handler);
int main() {
Harness::run(specification);
}