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Import of the watch repository from Pebble

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Matthieu Jeanson 2024-12-12 16:43:03 -08:00 • committed by Katharine Berry
commit 3b92768480
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tests/libc/string/test_memcpy.c Normal file
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/*
* Copyright 2024 Google LLC
*
* 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 <stdint.h>
#include <string.h>
#include "clar.h"
// "Define" libc functions we're testing
#include "pblibc_private.h"
///////////////////////////////////////////////////////////////////////////////////////////////////
//! Tests
void test_memcpy__basic(void) {
uint8_t testbuf[8] = { 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0, };
uint8_t destbuf[8];
memcpy(destbuf, testbuf, 8);
cl_assert_equal_m(testbuf, destbuf, 8);
}
void test_memcpy__partial(void) {
uint8_t testbuf[8] = { 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0, };
uint8_t destbuf[8] = { 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, 0x78, };
uint8_t expectbuf[8] = { 0x9A, 0xBC, 0xDE, 0xF0, 0x78, 0x78, 0x78, 0x78, };
memcpy(destbuf, testbuf+4, 4);
cl_assert_equal_m(expectbuf, destbuf, 8);
}
void test_memcpy__return_value(void) {
uint8_t testbuf[8] = { 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0, };
uint8_t destbuf[8];
cl_assert_equal_p(memcpy(destbuf, testbuf, 8), destbuf);
}
void test_memcpy__move_basic(void) {
uint8_t testbuf[8] = { 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0, };
uint8_t destbuf[8];
memmove(destbuf, testbuf, 8);
cl_assert_equal_m(testbuf, destbuf, 8);
}
void test_memcpy__move_return_value(void) {
uint8_t testbuf[8] = { 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0, };
uint8_t destbuf[8];
cl_assert_equal_p(memmove(destbuf, testbuf, 8), destbuf);
}
void test_memcpy__move_overwrite_backwards(void) {
uint8_t testbuf[8] = { 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0, };
uint8_t destbuf[8];
memcpy(destbuf+4, testbuf, 4);
memmove(destbuf+2, destbuf+4, 4);
cl_assert_equal_m(testbuf, destbuf+2, 4);
cl_assert_equal_m(testbuf+2, destbuf+6, 2);
}
void test_memcpy__move_overwrite_forwards(void) {
uint8_t testbuf[8] = { 0x12, 0x34, 0x56, 0x78, 0x9A, 0xBC, 0xDE, 0xF0, };
uint8_t destbuf[8];
memcpy(destbuf+0, testbuf, 4);
memmove(destbuf+2, destbuf+0, 4);
cl_assert_equal_m(testbuf, destbuf+2, 4);
cl_assert_equal_m(testbuf, destbuf+0, 2);
}