Use sourcecode for libjuice

thirdparty/libjuice/test/crc32.c

@@ -0,0 +1,22 @@
+/**
+ * Copyright (c) 2020 Paul-Louis Ageneau
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/.
+ */
+
+#include "crc32.h"
+
+#include <stdint.h>
+#include <string.h>
+
+int test_crc32(void) {
+	const char *str = "The quick brown fox jumps over the lazy dog";
+	uint32_t expected = 0x414fa339;
+
+	if (CRC32(str, strlen(str)) != expected)
+		return -1;
+
+	return 0;
+}