text: #include "salad/rope.h"
  #include <time.h>
  #include "unit.h"
  #include "rope_common.h"
  
  static char *data[] = {"a", "bc", "def", "ghij", "klmno"};
  
  static void
  test_rope_stress_small()
  {
  	header();
  
  	struct rope *rope = rope_new(str_getn, NULL, mem_alloc, mem_free, NULL);
  	const int iterations = 500;
  	int i = 0;
  	for (i = 0; i < iterations; ++i) {
  		char *d = data[((rsize_t) rand())%5];
  		int len = strlen(d);
  		rsize_t size = rope_size(rope);
  		rsize_t offset = ((rsize_t) rand()) % (size + 1);
  		rope_insert(rope, offset, d, len);
  		fail_unless(size + len == rope_size(rope));
  		rope_check(rope);
  		size = rope_size(rope);
  		offset = ((rsize_t) rand()) % size;
  		if (offset == size)
  			offset--;
  		rope_erase(rope, offset);
  		fail_unless(size == rope_size(rope) + 1);
  		rope_check(rope);
  	}
  	rope_delete(rope);
  
  	footer();
  }
  
  static void
  test_rope_stress_large()
  {
  	header();
  
  	struct rope *rope = rope_new(str_getn, NULL, mem_alloc, mem_free, NULL);
  	const int iterations = 50000;
  	int i = 0;
  	for (i = 0; i < iterations; ++i) {
  		char *d = data[((rsize_t) rand())%5];
  		int len = strlen(d);
  		rsize_t size = rope_size(rope);
  		rsize_t offset = ((rsize_t) rand()) % (size + 1);
  		rope_insert(rope, offset, d, len);
  		fail_unless(size + len == rope_size(rope));
  		size = rope_size(rope);
  		offset = ((rsize_t) rand()) % size;
  		if (offset == size)
  			offset--;
  		rope_erase(rope, offset);
  		fail_unless(size == rope_size(rope) + 1);
  		if (i % 1000 == 0)
  			rope_check(rope);
  	}
  	rope_delete(rope);
  
  	footer();
  }
  int
  main()
  {
  	srand(time(NULL));
  	test_rope_stress_small();
  	test_rope_stress_large();
  	return 0;
  }
  