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-rw-r--r--subprojects/exess/test/test_byte.c98
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diff --git a/subprojects/exess/test/test_byte.c b/subprojects/exess/test/test_byte.c
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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 int8_t expected_value,
+ const size_t expected_count)
+{
+ int8_t value = 0;
+ const ExessResult r = exess_read_byte(&value, string);
+
+ assert(r.status == expected_status);
+ assert(r.count == expected_count);
+ assert(value == expected_value);
+}
+
+static void
+test_read_byte(void)
+{
+ // Limits
+ check_read("-128", EXESS_SUCCESS, INT8_MIN, EXESS_MAX_BYTE_LENGTH);
+ check_read("127", EXESS_SUCCESS, INT8_MAX, 3);
+
+ // Out of range
+ check_read("-129", EXESS_OUT_OF_RANGE, 0, 4);
+ check_read("128", EXESS_OUT_OF_RANGE, 0, 3);
+
+ // Garbage
+ check_read("+", EXESS_EXPECTED_DIGIT, 0, 1);
+}
+
+static void
+check_write(const int8_t value,
+ const ExessStatus expected_status,
+ const size_t buf_size,
+ const char* const expected_string)
+{
+ char buf[EXESS_MAX_BYTE_LENGTH + 1] = {1, 2, 3, 4, 5};
+ assert(buf_size <= sizeof(buf));
+
+ const ExessResult r = exess_write_byte(value, buf_size, buf);
+ assert(r.status == expected_status);
+ assert(!strcmp(buf, expected_string));
+ assert(r.count == strlen(buf));
+ assert(r.status || exess_write_byte(value, 0, NULL).count == r.count);
+}
+
+static void
+test_write_byte(void)
+{
+ check_write(INT8_MIN, EXESS_SUCCESS, 5, "-128");
+ check_write(INT8_MAX, EXESS_SUCCESS, 4, "127");
+}
+
+static void
+test_round_trip(void)
+{
+ int8_t value = 0;
+ char buf[EXESS_MAX_BYTE_LENGTH + 1] = {1, 2, 3, 4, 5};
+
+ for (int16_t i = INT8_MIN; i <= INT8_MAX; ++i) {
+ assert(!exess_write_byte((int8_t)i, sizeof(buf), buf).status);
+ assert(!exess_read_byte(&value, buf).status);
+ assert(value == i);
+ }
+}
+
+int
+main(void)
+{
+ test_read_byte();
+ test_write_byte();
+ test_round_trip();
+ return 0;
+}