WIP: Retreived the unit tests (formerly test cases)

Some of these still work, others have just been dummied out for now.

Also added tests for console colors tool, and tweaked it to work
properly.

tests/units/test_bucket.c

@@ -0,0 +1,89 @@
+#include "toy_bucket.h"
+#include "toy_console_colors.h"
+
+#include <stdio.h>
+
+int test_buckets(void) {
+	//test initializing and freeing a bucket
+	{
+		//init
+		Toy_Bucket* bucket = Toy_allocateBucket(sizeof(int) * 32);
+
+		//check
+		if (bucket == NULL || bucket->capacity != 32 * sizeof(int)) {
+			fprintf(stderr, TOY_CC_ERROR "ERROR: failed to initialize 'Toy_Bucket'\n" TOY_CC_RESET);
+			return -1;
+		}
+
+		//cleanup
+		Toy_freeBucket(&bucket);
+	}
+
+	//test partitioning a bucket, several times
+	{
+		//init
+		Toy_Bucket* bucket = Toy_allocateBucket(sizeof(int) * 32);
+
+		//grab some memory
+		Toy_partitionBucket(&bucket, sizeof(int));
+		Toy_partitionBucket(&bucket, sizeof(int));
+		Toy_partitionBucket(&bucket, sizeof(int));
+		Toy_partitionBucket(&bucket, sizeof(int));
+
+		//check
+		if (bucket == NULL || bucket->count != 4 * sizeof(int)) {
+			fprintf(stderr, TOY_CC_ERROR "ERROR: failed to partition 'Toy_Bucket' correctly: count is %d, expected %d\n" TOY_CC_RESET, (int)(bucket->count), (int)(4*sizeof(int)));
+			return -1;
+		}
+
+		//cleanup
+		Toy_freeBucket(&bucket);
+	}
+
+	//test partitioning a bucket, several times, with an internal expansion
+	{
+		//init
+		Toy_Bucket* bucket = Toy_allocateBucket(sizeof(int) * 4);
+
+		//grab some memory
+		Toy_partitionBucket(&bucket, sizeof(int));
+		Toy_partitionBucket(&bucket, sizeof(int));
+		Toy_partitionBucket(&bucket, sizeof(int));
+		Toy_partitionBucket(&bucket, sizeof(int));
+		Toy_partitionBucket(&bucket, sizeof(int));
+		Toy_partitionBucket(&bucket, sizeof(int));
+
+		//checks - please note that the top-most bucket is what is being filled - older buckets are further along
+		if (
+			bucket->capacity != 4 * sizeof(int) ||
+			bucket->count != 2 * sizeof(int) ||
+			bucket->next == NULL ||
+			bucket->next->capacity != 4 * sizeof(int) ||
+			bucket->next->count != 4 * sizeof(int))
+		{
+			fprintf(stderr, TOY_CC_ERROR "ERROR: failed to expand 'Toy_Bucket' correctly\n" TOY_CC_RESET);
+			return -1;
+		}
+
+		//cleanup
+		Toy_freeBucket(&bucket);
+	}
+
+	return 0;
+}
+
+int main(void) {
+	//run each test set, returning the total errors given
+	int total = 0, res = 0;
+
+	{
+		res = test_buckets();
+		total += res;
+
+		if (res == 0) {
+			printf(TOY_CC_NOTICE "All good\n" TOY_CC_RESET);
+		}
+	}
+
+	return total;
+}