esp-idf/components/vfs/test/test_vfs_uart.c
2017-01-16 11:33:32 +08:00

125 lines
3.9 KiB
C

// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "unity.h"
#include "rom/uart.h"
#include "soc/uart_struct.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "sdkconfig.h"
static void fwrite_str_loopback(const char* str, size_t size)
{
uart_tx_wait_idle(CONFIG_CONSOLE_UART_NUM);
UART0.conf0.loopback = 1;
fwrite(str, 1, size, stdout);
fflush(stdout);
uart_tx_wait_idle(CONFIG_CONSOLE_UART_NUM);
vTaskDelay(2 / portTICK_PERIOD_MS);
UART0.conf0.loopback = 0;
}
static void flush_stdin_stdout()
{
vTaskDelay(10 / portTICK_PERIOD_MS);
char *bitbucket = (char*) 0x3f000000;
while (fread(bitbucket, 1, 128, stdin) > 0) {
;
}
fflush(stdout);
uart_tx_wait_idle(CONFIG_CONSOLE_UART_NUM);
}
TEST_CASE("can read from stdin", "[vfs]")
{
flush_stdin_stdout();
const size_t count = 12;
srand(count);
char* data = (char*) calloc(1, count * 8 + 1);
char* buf = (char*) calloc(1, count * 8 + 1);
char* p = data;
for (size_t i = 0; i < count; ++i) {
p += sprintf(p, "%08x", rand());
}
p += sprintf(p, "\n");
size_t len = p - data;
fwrite_str_loopback(data, len);
size_t cb = fread(buf, 1, len, stdin);
TEST_ASSERT_EQUAL(len, cb);
TEST_ASSERT_EQUAL_UINT8_ARRAY(data, buf, len);
}
#if CONFIG_NEWLIB_STDOUT_ADDCR
TEST_CASE("CRs are removed from the stdin correctly", "[vfs]")
{
flush_stdin_stdout();
const char* send_str = "1234567890\n\r123\r\n4\n";
/* with CONFIG_NEWLIB_STDOUT_ADDCR, the following will be sent on the wire.
* (last character of each part is marked with a hat)
*
* 1234567890\r\n\r123\r\r\n4\r\n
* ^ ^^ ^
*/
char buf[128];
char* dst = buf;
fwrite_str_loopback(send_str, 11); // send up to the first \n
size_t rb = fread(dst, 1, 5, stdin); // read first 5
TEST_ASSERT_EQUAL(5, rb);
dst += rb;
rb = fread(dst, 1, 6, stdin); // ask for 6
TEST_ASSERT_EQUAL(6, rb); // get 6
TEST_ASSERT_EQUAL_UINT8_ARRAY("1234567890\n", buf, 11);
dst += rb;
rb = fread(dst, 1, 2, stdin); // any more characters?
TEST_ASSERT_EQUAL(0, rb); // nothing
fwrite_str_loopback(send_str + 11, 1); // send the '\r'
vTaskDelay(10 / portTICK_PERIOD_MS);
rb = fread(dst, 1, 2, stdin); // try to get somthing
TEST_ASSERT_EQUAL(0, rb); // still nothing (\r is buffered)
fwrite_str_loopback(send_str + 12, 1); // Now send the '1'
vTaskDelay(10 / portTICK_PERIOD_MS);
rb = fread(dst, 1, 2, stdin); // try again
TEST_ASSERT_EQUAL(2, rb); // get two characters
TEST_ASSERT_EQUAL_UINT8_ARRAY("\r1", dst, 2);
dst += rb;
fwrite_str_loopback(send_str + 13, 6); // Send the rest
vTaskDelay(10 / portTICK_PERIOD_MS);
rb = fread(dst, 1, 4, stdin); // consume "23\r\n"
TEST_ASSERT_EQUAL(4, rb);
TEST_ASSERT_EQUAL_UINT8_ARRAY("23\r\n", dst, 4);
dst += rb;
rb = fread(dst, 1, 4, stdin); // ask for more than the remainder
TEST_ASSERT_EQUAL(2, rb);
TEST_ASSERT_EQUAL_UINT8_ARRAY("4\n", dst, 2);
}
#endif //CONFIG_NEWLIB_STDOUT_ADDCR