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Diffstat (limited to 'src/systemcmds/tests/test_conv.cpp')
-rw-r--r-- | src/systemcmds/tests/test_conv.cpp | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/src/systemcmds/tests/test_conv.cpp b/src/systemcmds/tests/test_conv.cpp new file mode 100644 index 000000000..50dece816 --- /dev/null +++ b/src/systemcmds/tests/test_conv.cpp @@ -0,0 +1,76 @@ +/**************************************************************************** + * + * Copyright (c) 2012, 2013 PX4 Development Team. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/** + * @file test_conv.cpp + * Tests conversions used across the system. + * + */ + +#include <nuttx/config.h> + +#include <sys/types.h> + +#include <stdio.h> +#include <poll.h> +#include <stdlib.h> +#include <unistd.h> +#include <fcntl.h> +#include <errno.h> + +#include "tests.h" + +#include <math.h> +#include <float.h> + +#include <systemlib/err.h> +#include <unit_test/unit_test.h> +#include <px4iofirmware/protocol.h> + +int test_conv(int argc, char *argv[]) +{ + warnx("Testing system conversions"); + + for (int i = -10000; i <= 10000; i+=1) { + float f = i/10000.0f; + float fres = REG_TO_FLOAT(FLOAT_TO_REG(f)); + if (fabsf(f - fres) > 0.0001f) { + warnx("conversion fail: input: %8.4f, intermediate: %d, result: %8.4f", f, REG_TO_SIGNED(FLOAT_TO_REG(f)), fres); + return 1; + } + } + + warnx("All conversions clean"); + + return 0; +} |