test: provide test for errno_str()

Provide a unit test for errno_str(). Test that known and unknown error
numbers are handled correctly.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Heinrich Schuchardt 2019-10-15 21:46:04 +02:00 committed by Tom Rini
parent 02e8a8241b
commit 79c84de468
2 changed files with 47 additions and 0 deletions

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@ -6,3 +6,4 @@ obj-y += cmd_ut_lib.o
obj-y += hexdump.o obj-y += hexdump.o
obj-y += lmb.o obj-y += lmb.o
obj-y += string.o obj-y += string.o
obj-$(CONFIG_ERRNO_STR) += test_errno_str.o

46
test/lib/test_errno_str.c Normal file
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@ -0,0 +1,46 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2019 Heinrich Schuchardt <xypron.glpk@gmx.de>
*
* Unit tests for memory functions
*
* The architecture dependent implementations run through different lines of
* code depending on the alignment and length of memory regions copied or set.
* This has to be considered in testing.
*/
#include <common.h>
#include <command.h>
#include <errno.h>
#include <test/lib.h>
#include <test/test.h>
#include <test/ut.h>
/**
* lib_errno_str() - unit test for errno_str()
*
* Test errno_str() with varied alignment and length of the copied buffer.
*
* @uts: unit test state
* Return: 0 = success, 1 = failure
*/
static int lib_errno_str(struct unit_test_state *uts)
{
const char *msg;
msg = errno_str(1);
ut_asserteq_str("Success", msg);
msg = errno_str(0);
ut_asserteq_str("Success", msg);
msg = errno_str(-ENOMEM);
ut_asserteq_str("Out of memory", msg);
msg = errno_str(-99999);
ut_asserteq_str("Unknown error", msg);
return 0;
}
LIB_TEST(lib_errno_str, 0);