test/t.Stack.c

   1 #include <stdlib.h>
   2 #include "cgds/Stack.h"
   3 #include "helpers.h"
   4 #include "lut.h"
   5
   6 void t_stack_clear()
   7 {
   8     Stack* s = stack_new(int);
   9
  10     stack_push(s, 0);
  11     stack_push(s, 0);
  12     stack_push(s, 0);
  13
  14     stack_clear(s);
  15     lu_assert(stack_empty(s));
  16
  17     stack_destroy(s);
  18 }
  19
  20 void t_stack_size()
  21 {
  22     Stack* s = stack_new(int);
  23
  24     stack_push(s, 0);
  25     stack_push(s, 0);
  26     stack_push(s, 0);
  27     lu_assert_int_eq(stack_size(s), 3);
  28
  29     stack_push(s, 0);
  30     stack_push(s, 0);
  31     lu_assert_int_eq(stack_size(s), 5);
  32
  33     stack_push(s, 0);
  34     stack_push(s, 0);
  35     stack_push(s, 0);
  36     lu_assert_int_eq(stack_size(s), 8);
  37
  38     stack_destroy(s);
  39 }
  40
  41 void t_stack_push_pop_basic()
  42 {
  43
  44     int n = 10;
  45
  46     Stack* s = stack_new(double);
  47     for (int i = 0; i < n; i++)
  48         stack_push(s, (double) i);
  49     // iterate and check values
  50     double ckValue = n - 1;
  51     while (!stack_empty(s))
  52     {
  53         double d;
  54         stack_top(s, d);
  55         lu_assert_dbl_eq(d, ckValue);
  56         ckValue -= 1.0;
  57         stack_pop(s);
  58     }
  59
  60     lu_assert(stack_empty(s));
  61     stack_destroy(s);
  62 }
  63
  64 void t_stack_push_pop_evolved()
  65 {
  66     Stack* s = stack_new(StructTest1);
  67
  68     int n = 10;
  69     StructTest1* st1 = (StructTest1*) malloc(n * sizeof (StructTest1));
  70     for (int i = n - 1; i >= 0; i--)
  71     {
  72         st1[i].a = rand() % 42;
  73         st1[i].b = (double) rand() / RAND_MAX;
  74         stack_push(s, *(st1 + i));
  75     }
  76     for (int i = 0; i < n; i++)
  77     {
  78         StructTest1 st1Cell;
  79         stack_top(s, st1Cell);
  80         lu_assert_int_eq(st1Cell.a, st1[i].a);
  81         lu_assert_dbl_eq(st1Cell.b, st1[i].b);
  82         stack_pop(s);
  83     }
  84     safe_free(st1);
  85     stack_destroy(s);
  86
  87     s = stack_new(StructTest2*);
  88     StructTest2* st2 = (StructTest2*) malloc(n * sizeof (StructTest2));
  89     for (int i = n - 1; i >= 0; i--)
  90     {
  91         st2[i].a = (float) rand() / RAND_MAX;
  92         st2[i].b = (StructTest1*) malloc(sizeof (StructTest1));
  93         st2[i].b->a = rand() % 42;
  94         st2[i].b->b = (double) rand() / RAND_MAX;
  95         stack_push(s, st2 + i);
  96     }
  97     for (int i = 0; i < n; i++)
  98     {
  99         StructTest2* st2Cell;
 100         stack_top(s, st2Cell);
 101         lu_assert_dbl_eq(st2Cell->a, st2[i].a);
 102         lu_assert_int_eq(st2Cell->b->a, st2[i].b->a);
 103         lu_assert_dbl_eq(st2Cell->b->b, st2[i].b->b);
 104         stack_pop(s);
 105         safe_free(st2Cell->b);
 106     }
 107     safe_free(st2);
 108     stack_destroy(s);
 109 }
 110
 111 void t_stack_copy()
 112 {
 113     int n = 10;
 114
 115     Stack* s = stack_new(int);
 116     for (int i = 0; i < n; i++)
 117         stack_push(s, rand() % 42);
 118     Stack* sc = stack_copy(s);
 119
 120     lu_assert_int_eq(stack_size(s), stack_size(sc));
 121     int a, b;
 122     for (int i = 0; i < n; i++)
 123     {
 124         stack_top(s, a);
 125         stack_top(sc, b);
 126         lu_assert_int_eq(a, b);
 127         stack_pop(s);
 128         stack_pop(sc);
 129     }
 130     stack_destroy(s);
 131     stack_destroy(sc);
 132 }