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tests: lib: semihost: test file operations

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Add tests for basic file operations under semihosting.

Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
This commit is contained in:
Jordan Yates 2022-03-30 21:25:21 +10:00 • committed by Carles Cufí
commit 685e53231f
4 changed files with 90 additions and 0 deletions
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8
tests/arch/common/semihost/CMakeLists.txt Normal file
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# SPDX-License-Identifier: Apache-2.0
cmake_minimum_required(VERSION 3.20.0)
find_package(Zephyr REQUIRED HINTS $ENV{ZEPHYR_BASE})
project(semihost)
FILE(GLOB app_sources src/*.c)
target_sources(app PRIVATE ${app_sources})

2
tests/arch/common/semihost/prj.conf Normal file
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CONFIG_ZTEST=y
CONFIG_SEMIHOST=y

76
tests/arch/common/semihost/src/main.c Normal file
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/*
* Copyright (c) 2022, Commonwealth Scientific and Industrial Research
* Organisation (CSIRO) ABN 41 687 119 230.
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <ztest.h>
#include <arch/common/semihost.h>
static void test_file_ops(void)
{
const char *test_file = "./test.bin";
uint8_t w_buffer[16] = { 1, 2, 3, 4, 5 };
uint8_t r_buffer[16];
long read, fd;
/* Open in write mode */
fd = semihost_open(test_file, SEMIHOST_OPEN_WB);
zassert_true(fd > 0, "Bad handle (%d)", fd);
zassert_equal(semihost_flen(fd), 0, "File not empty");
/* Write some data */
zassert_equal(semihost_write(fd, w_buffer, sizeof(w_buffer)), 0, "Write failed");
zassert_equal(semihost_flen(fd), sizeof(w_buffer), "Size not updated");
zassert_equal(semihost_write(fd, w_buffer, sizeof(w_buffer)), 0, "Write failed");
zassert_equal(semihost_flen(fd), 2 * sizeof(w_buffer), "Size not updated");
/* Reading should fail in this mode */
read = semihost_read(fd, r_buffer, sizeof(r_buffer));
zassert_equal(read, -EIO, "Read from write-only file");
/* Close the file */
zassert_equal(semihost_close(fd), 0, "Close failed");
/* Open the same file again for reading */
fd = semihost_open(test_file, SEMIHOST_OPEN_RB);
zassert_true(fd > 0, "Bad handle (%d)", fd);
zassert_equal(semihost_flen(fd), 2 * sizeof(w_buffer), "Data not preserved");
/* Check reading data */
read = semihost_read(fd, r_buffer, sizeof(r_buffer));
zassert_equal(read, sizeof(r_buffer), "Read failed %d", read);
zassert_mem_equal(r_buffer, w_buffer, sizeof(r_buffer), "Data not read");
read = semihost_read(fd, r_buffer, sizeof(r_buffer));
zassert_equal(read, sizeof(r_buffer), "Read failed");
zassert_mem_equal(r_buffer, w_buffer, sizeof(r_buffer), "Data not read");
/* Read past end of file */
read = semihost_read(fd, r_buffer, sizeof(r_buffer));
zassert_equal(read, -EIO, "Read past end of file");
/* Seek to file offset */
zassert_equal(semihost_seek(fd, 1), 0, "Seek failed");
/* Read from offset */
read = semihost_read(fd, r_buffer, sizeof(r_buffer) - 1);
zassert_equal(read, sizeof(r_buffer) - 1, "Read failed");
zassert_mem_equal(r_buffer, w_buffer + 1, sizeof(r_buffer) - 1, "Data not read");
/* Close the file */
zassert_equal(semihost_close(fd), 0, "Close failed");
/* Opening again in write mode should erase the file */
fd = semihost_open(test_file, SEMIHOST_OPEN_WB);
zassert_true(fd > 0, "Bad handle (%d)", fd);
zassert_equal(semihost_flen(fd), 0, "File not empty");
zassert_equal(semihost_close(fd), 0, "Close failed");
}
void test_main(void)
{
ztest_test_suite(semihost,
ztest_unit_test(test_file_ops));
ztest_run_test_suite(semihost);
}

4
tests/arch/common/semihost/testcase.yaml Normal file
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tests:
arch.common.semihost:
arch_allow: arm arm64 riscv32 riscv64
filter: CONFIG_QEMU_TARGET