--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/test/test-rules-helper.c Fri Aug 21 17:04:43 2026 +0200
@@ -0,0 +1,59 @@
+/*
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
+ *
+ * Copyright 2026 Mike Becker. 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.
+ *
+ * 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 HOLDER 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.
+ *
+ */
+
+#include "ucxtest.h"
+#include "chess/rules.h"
+
+static CX_TEST(test_field_color) {
+ Board colors = {
+ {BLACK, WHITE, BLACK, WHITE, BLACK, WHITE, BLACK, WHITE},
+ {WHITE, BLACK, WHITE, BLACK, WHITE, BLACK, WHITE, BLACK},
+ {BLACK, WHITE, BLACK, WHITE, BLACK, WHITE, BLACK, WHITE},
+ {WHITE, BLACK, WHITE, BLACK, WHITE, BLACK, WHITE, BLACK},
+ {BLACK, WHITE, BLACK, WHITE, BLACK, WHITE, BLACK, WHITE},
+ {WHITE, BLACK, WHITE, BLACK, WHITE, BLACK, WHITE, BLACK},
+ {BLACK, WHITE, BLACK, WHITE, BLACK, WHITE, BLACK, WHITE},
+ {WHITE, BLACK, WHITE, BLACK, WHITE, BLACK, WHITE, BLACK},
+ };
+ CX_TEST_DO {
+ for (Row r = 0 ; r < 8 ; r++) {
+ for (File f = 0 ; f < 8 ; f++) {
+ CX_TEST_ASSERT(field_color(r, f) == colors[r][f]);
+ }
+ }
+ }
+}
+
+CxTestSuite* test_rules_helper_suite(void) {
+ CxTestSuite* suite = cx_test_suite_new("Helper Functions in rules.h");
+
+ cx_test_register(suite, test_field_color);
+
+ return suite;
+}
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