o3tl/qa/test-array_view.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 #include <sal/config.h>
  11
  12 #include <stdexcept>
  13
  14 #include <cppunit/TestAssert.h>
  15 #include <cppunit/TestFixture.h>
  16 #include <cppunit/extensions/HelperMacros.h>
  17
  18 #include <o3tl/array_view.hxx>
  19
  20 namespace {
  21
  22 class Test: public CppUnit::TestFixture {
  23 private:
  24     CPPUNIT_TEST_SUITE(Test);
  25     CPPUNIT_TEST(testOperations);
  26     CPPUNIT_TEST_SUITE_END();
  27
  28
  29     void testOperations() {
  30         int const some_data[] { 1, 2, 3 };
  31         o3tl::array_view<int const> v(some_data);
  32
  33         CPPUNIT_ASSERT_EQUAL(1, *v.begin());
  34         CPPUNIT_ASSERT_EQUAL(
  35             o3tl::array_view<int>::difference_type(3), v.end() - v.begin());
  36         CPPUNIT_ASSERT_EQUAL(1, *v.cbegin());
  37         CPPUNIT_ASSERT_EQUAL(
  38             o3tl::array_view<int>::difference_type(3), v.cend() - v.cbegin());
  39         CPPUNIT_ASSERT_EQUAL(3, *v.rbegin());
  40         CPPUNIT_ASSERT_EQUAL(
  41             o3tl::array_view<int>::difference_type(3), v.rend() - v.rbegin());
  42         CPPUNIT_ASSERT_EQUAL(3, *v.crbegin());
  43         CPPUNIT_ASSERT_EQUAL(
  44             o3tl::array_view<int>::difference_type(3), v.crend() - v.crbegin());
  45         CPPUNIT_ASSERT_EQUAL(o3tl::array_view<int>::size_type(3), v.size());
  46         CPPUNIT_ASSERT_EQUAL(o3tl::array_view<int>::size_type(3), v.length());
  47         CPPUNIT_ASSERT_EQUAL(o3tl::array_view<int>::npos - 1, v.max_size());
  48         CPPUNIT_ASSERT(!v.empty());
  49         CPPUNIT_ASSERT_EQUAL(2, v[1]);
  50         try {
  51             v.at(o3tl::array_view<int>::npos);
  52             CPPUNIT_FAIL("missing exception");
  53         } catch (std::out_of_range &) {}
  54         CPPUNIT_ASSERT_EQUAL(1, v.at(0));
  55         CPPUNIT_ASSERT_EQUAL(3, v.at(2));
  56         try {
  57             v.at(3);
  58             CPPUNIT_FAIL("missing exception");
  59         } catch (std::out_of_range &) {}
  60         CPPUNIT_ASSERT_EQUAL(1, v.front());
  61         CPPUNIT_ASSERT_EQUAL(3, v.back());
  62         CPPUNIT_ASSERT_EQUAL(1, *v.data());
  63         {
  64             int const d1[] { 1, 2 };
  65             int const d2[] { 3, 4, 5, 6 };
  66             o3tl::array_view<int const> v1( d1 );
  67             o3tl::array_view<int const> v2( d2 );
  68             v1.swap(v2);
  69             CPPUNIT_ASSERT_EQUAL(o3tl::array_view<int>::size_type(4), v1.size());
  70             CPPUNIT_ASSERT_EQUAL(o3tl::array_view<int>::size_type(2), v2.size());
  71         }
  72         {
  73             int d1[] { 1, 2, 3 };
  74             o3tl::array_view<int> v1(d1);
  75             o3tl::array_view<int const> v2;
  76             v2 = v1; // the special operator=
  77         }
  78     }
  79 };
  80
  81 CPPUNIT_TEST_SUITE_REGISTRATION(Test);
  82
  83 }
  84
  85 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */