src/tests/kits/media/AreaTest.cpp

   1 /*
   2  * Copyright 2014 Haiku, Inc.
   3  * Distributed under the terms of the MIT License.
   4  */
   5
   6
   7 #include "AreaTest.h"
   8
   9 #include <OS.h>
  10
  11 #include <cppunit/TestCaller.h>
  12 #include <cppunit/TestSuite.h>
  13
  14
  15 AreaTest::AreaTest()
  16 {
  17 }
  18
  19
  20 AreaTest::~AreaTest()
  21 {
  22 }
  23
  24
  25 void
  26 AreaTest::TestAreas()
  27 {
  28         int * ptr = new int[1];
  29         char *adr;
  30         area_id id;
  31         ptrdiff_t offset;
  32
  33         area_info info;
  34         id = area_for(ptr);
  35         get_area_info(id, &info);
  36         adr = (char *)info.address;
  37         offset = (ptrdiff_t)ptr - (ptrdiff_t)adr;
  38
  39
  40         char * adrclone1;
  41         char * adrclone2;
  42         int * ptrclone1;
  43         int * ptrclone2;
  44         area_id idclone1;
  45         area_id idclone2;
  46
  47         idclone1 = clone_area("clone 1", (void **)&adrclone1, B_ANY_ADDRESS,
  48                 B_READ_AREA | B_WRITE_AREA, id);
  49         idclone2 = clone_area("clone 2", (void **)&adrclone2, B_ANY_ADDRESS,
  50                 B_READ_AREA | B_WRITE_AREA, id);
  51
  52         ptrclone1 = (int *)(adrclone1 + offset);
  53         ptrclone2 = (int *)(adrclone2 + offset);
  54
  55         // Check that he pointer is inside the area returned by area_for...
  56         CPPUNIT_ASSERT(offset >= 0);
  57
  58         // Chech that the clones have different IDs
  59         CPPUNIT_ASSERT(id != idclone1);
  60         CPPUNIT_ASSERT(id != idclone2);
  61         CPPUNIT_ASSERT(idclone1 != idclone2);
  62
  63         // Check that the clones have different addresses
  64         CPPUNIT_ASSERT(adr != adrclone1);
  65         CPPUNIT_ASSERT(adr != adrclone2);
  66         CPPUNIT_ASSERT(adrclone1 != adrclone2);
  67
  68         // Check that changes on one view of the area are visible in others.
  69         ptr[0] = 0x12345678;
  70         CPPUNIT_ASSERT(ptr[0] == ptrclone1[0]);
  71         CPPUNIT_ASSERT(ptrclone2[0] == ptrclone1[0]);
  72         CPPUNIT_ASSERT_EQUAL(0x12345678, ptrclone2[0]);
  73 }
  74
  75
  76 /*static*/ void
  77 AreaTest::AddTests(BTestSuite& parent)
  78 {
  79         CppUnit::TestSuite& suite = *new CppUnit::TestSuite("AreaTest");
  80
  81         suite.addTest(new CppUnit::TestCaller<AreaTest>(
  82                 "AreaTest::TestAreas", &AreaTest::TestAreas));
  83
  84         parent.addTest("AreaTest", &suite);
  85 }