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authorDavid Robillard <d@drobilla.net>2021-02-25 10:27:59 -0500
committerDavid Robillard <d@drobilla.net>2021-03-08 23:23:05 -0500
commitc4821c8e6bf1f81c6ea31e11ebc0fc1666e9337b (patch)
treea62995534f5f606ac2f8bae22d525532b824cb5e /subprojects/exess/test/test_ubyte.c
parent6bcd18ae60482790b645a345f718e7099250f261 (diff)
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Add exess from git@gitlab.com:drobilla/exess.git 4638b1f
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+/*
+ Copyright 2011-2021 David Robillard <d@drobilla.net>
+
+ Permission to use, copy, modify, and/or distribute this software for any
+ purpose with or without fee is hereby granted, provided that the above
+ copyright notice and this permission notice appear in all copies.
+
+ THIS SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+
+#undef NDEBUG
+
+#include "exess/exess.h"
+
+#include <assert.h>
+#include <stddef.h>
+#include <stdint.h>
+#include <string.h>
+
+static void
+check_read(const char* const string,
+ const ExessStatus expected_status,
+ const uint8_t expected_value,
+ const size_t expected_count)
+{
+ uint8_t value = 0;
+
+ const ExessResult r = exess_read_ubyte(&value, string);
+ assert(r.status == expected_status);
+ assert(r.count == expected_count);
+ assert(value == expected_value);
+}
+
+static void
+test_read_ubyte(void)
+{
+ // Limits
+ check_read("0", EXESS_SUCCESS, 0, 1);
+ check_read("255", EXESS_SUCCESS, UINT8_MAX, EXESS_MAX_UBYTE_LENGTH);
+
+ // Out of range
+ check_read("256", EXESS_OUT_OF_RANGE, 0, 3);
+
+ // Garbage
+ check_read("-1", EXESS_EXPECTED_DIGIT, 0, 0);
+ check_read("+", EXESS_EXPECTED_DIGIT, 0, 0);
+}
+
+static void
+check_write(const uint8_t value,
+ const ExessStatus expected_status,
+ const size_t buf_size,
+ const char* const expected_string)
+{
+ char buf[EXESS_MAX_UBYTE_LENGTH + 1] = {1, 2, 3, 4};
+
+ assert(buf_size <= sizeof(buf));
+
+ const ExessResult r = exess_write_ubyte(value, buf_size, buf);
+ assert(r.status == expected_status);
+ assert(r.count == strlen(buf));
+ assert(!strcmp(buf, expected_string));
+ assert(r.status || exess_write_ubyte(value, 0, NULL).count == r.count);
+}
+
+static void
+test_write_ubyte(void)
+{
+ check_write(0, EXESS_SUCCESS, 2, "0");
+ check_write(UINT8_MAX, EXESS_SUCCESS, 4, "255");
+}
+
+static void
+test_round_trip(void)
+{
+ uint8_t value = 0;
+ char buf[EXESS_MAX_UBYTE_LENGTH + 1] = {1, 2, 3, 4};
+
+ for (uint16_t i = 0; i <= UINT8_MAX; ++i) {
+ assert(!exess_write_ubyte((uint8_t)i, sizeof(buf), buf).status);
+ assert(!exess_read_ubyte(&value, buf).status);
+ assert(value == i);
+ }
+}
+
+int
+main(void)
+{
+ test_read_ubyte();
+ test_write_ubyte();
+ test_round_trip();
+
+ return 0;
+}