Freestyle Sparring

import codewars_test as test
# TODO Write tests
from solution import kube

# test.assert_equals(actual, expected, [optional] message)
@test.describe("Example")
def test_group():
    @test.it("test case")
    def test_case():
        test.assert_equals(kube(7, 9, 4), 252)
        test.assert_equals(kube(5, 12, 7), 420)
        test.assert_equals(kube(3, 7, 49), 1029)
        test.assert_equals(kube(-1,1,4), "Invalid Cube")

import codewars_test as test
# TODO Write tests
import solution # or from solution import example

# test.assert_equals(actual, expected, [optional] message)
@test.describe("Example")
def test_group():
    @test.it("test case")
    def test_case():
        test.assert_equals(1,1)

#include<criterion/criterion.h>
#include<string.h>
#include<stdlib.h>
#include<stdio.h>
#include<stdlib.h>

char* s2bf(char*);

int
validbf(char *a)
{
	int b;
	b = 0;
	while(*a){
		switch(*a){
			case '[':
				b++;
			break;
			case ']':
				b--;
				if(b < 0)
					return 0;
			break;
		}
		a++;
	}
	if(b)
		return 0;
	return 1;
}

void
runbf(char**cell, char*bf, char **o)
{
	int lc;
	while(*bf){
		switch(*bf){
				case '[':
					if(**cell){
						runbf(cell, bf+1, o);
						bf--;
					}else{
						lc = 0;
						do{
							switch(*bf){
									case '[':
											lc++;
									break;
									case ']':
										lc--;
									break;
							}
							bf++;
						}while(lc);
						continue;
					}
				break;
				case ']':
					return;
				break;
				case ',':
					**cell = rand();
				break;
				case '.':
					**o = **cell;
					(*o)++;
				break;
				case '<':
					(*cell)--;
				break;
				case '>':
					(*cell)++;
				break;
				case '+':
					(**cell)++;
				break;
				case '-':
					(**cell)--;
				break;
		}
		bf++;
	}
}


char*
evalbf(char *bf)
{
	char out[400] = {0};
	char cells[4096] = {0};
	char *cp = cells + 2048;
	char *o = out;
	runbf(&cp, bf, &o);
	
	char*r = malloc(o - out + 1);
	strcpy(r, out);
	return r;
}


Test(s2bf, bf_validity) {
	char *bf;
	
	bf = s2bf("ab");
	cr_assert_eq(validbf(bf), 1);
	
	free(bf);
}

Test(s2bf, hello_world){
	char *bf;
	char *op;
	
	bf = s2bf("Hello World!");
	printf("%s\n", bf);
	op = evalbf(bf);
	cr_assert_eq(strcmp(op,"Hello World!"),0);
	
	free(bf);
	free(op);
}