nanocoat/tests/testCircleBufferStack.c

   1 /* -*- Mode: C; indent-tabs-mode: t; tab-width: 4 -*-
   2 // ---------------------------------------------------------------------------
   3 // SquirrelJME
   4 //     Copyright (C) Stephanie Gawroriski <xer@multiphasicapps.net>
   5 // ---------------------------------------------------------------------------
   6 // SquirrelJME is under the Mozilla Public License Version 2.0.
   7 // See license.mkd for licensing and copyright information.
   8 // -------------------------------------------------------------------------*/
   9
  10 #include <string.h>
  11
  12 #include "test.h"
  13 #include "proto.h"
  14 #include "mock.h"
  15 #include "unit.h"
  16
  17 #include "sjme/circleBuffer.h"
  18
  19 #define TEST_BUF_SIZE 32
  20
  21 #define TEST_COUNT 25
  22
  23 /**
  24  * Tests using a circle buffer as a stack.
  25  *
  26  * @since 2024/08/25
  27  */
  28 SJME_TEST_DECLARE(testCircleBufferStack)
  29 {
  30         sjme_circleBuffer* buffer;
  31         sjme_circleBuffer_seekEnd seek;
  32         sjme_jint whichSeek, val;
  33         sjme_jubyte byteVal;
  34
  35         for (whichSeek = 0; whichSeek < 2; whichSeek++)
  36         {
  37                 /* Which seek are we doing? */
  38                 seek = (whichSeek == 0 ? SJME_CIRCLE_BUFFER_TAIL :
  39                         SJME_CIRCLE_BUFFER_HEAD);
  40
  41                 /* Setup new buffer. */
  42                 buffer = NULL;
  43                 if (sjme_error_is(test->error = sjme_circleBuffer_new(
  44                         test->pool,
  45                         &buffer,
  46                         SJME_CIRCLE_BUFFER_QUEUE, TEST_BUF_SIZE)) ||
  47                         buffer == NULL)
  48                         return sjme_unit_fail(test, "Could not make buffer.");
  49
  50                 /* Push values onto the given end. */
  51                 for (val = 0; val < TEST_COUNT; val++)
  52                 {
  53                         /* Push single value. */
  54                         byteVal = val;
  55                         if (sjme_error_is(test->error = sjme_circleBuffer_push(buffer,
  56                                 &byteVal, 1, seek)))
  57                                 return sjme_unit_fail(test, "Could not push %d?", val);
  58                 }
  59
  60                 /* All should have been pushed. */
  61                 sjme_unit_equalI(test, TEST_COUNT, buffer->ready,
  62                         "Buffer ready did not have everything?");
  63
  64                 /* Pop all values */
  65                 for (val = TEST_COUNT - 1; val >= 0; val--)
  66                 {
  67                         /* Push single value. */
  68                         byteVal = 255;
  69                         if (sjme_error_is(test->error = sjme_circleBuffer_pop(buffer,
  70                                 &byteVal, 1, seek)))
  71                                 return sjme_unit_fail(test, "Could not pop %d?", val);
  72
  73                         /* Must be the same value. */
  74                         sjme_unit_equalI(test, byteVal, val,
  75                                 "Value popped did not match?");
  76                 }
  77
  78                 /* All should have been popped. */
  79                 sjme_unit_equalI(test, 0, buffer->ready,
  80                         "Not everything was removed from the buffer?");
  81
  82                 /* Destroy the buffer. */
  83                 if (sjme_error_is(test->error = sjme_circleBuffer_destroy(buffer)))
  84                         return sjme_unit_fail(test, "Could not destroy buffer?");
  85         }
  86
  87         /* Success! */
  88         return SJME_TEST_RESULT_PASS;
  89 }