1 files changed, 52 insertions, 0 deletions
diff --git a/subprojects/exess/test/time_test_utils.h b/subprojects/exess/test/time_test_utils.h
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+++ b/subprojects/exess/test/time_test_utils.h
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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.
+*/
+
+#include "int_test_data.h"
+
+#include "exess/exess.h"
+
+#include <stdint.h>
+
+#define INIT_ZONE(hour, minute) \
+  {                             \
+    4 * (hour) + (minute) / 15  \
+  }
+
+static inline ExessTimezone
+random_timezone(uint32_t* rng)
+{
+  *rng = lcg32(*rng);
+
+  const int8_t hour = (int8_t)((*rng % 27) - 13);
+
+  *rng = lcg32(*rng);
+
+  const int8_t minute = (int8_t)((hour < 0 ? -1 : 1) * (int32_t)(*rng % 60));
+
+  const ExessTimezone zone = {(int8_t)(4 * hour + minute / 15)};
+  return zone;
+}
+
+static inline bool
+timezone_matches(const ExessTimezone zone,
+                 const int8_t        expected_hour,
+                 const int8_t        expected_minute,
+                 const bool          expected_is_present)
+
+{
+  return (!expected_is_present && zone.quarter_hours == EXESS_LOCAL) ||
+         zone.quarter_hours == 4 * expected_hour + expected_minute / 15;
+}