o3tl/qa/test-span.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 <cstddef>
  13 #include <utility>
  14
  15 #include <cppunit/TestAssert.h>
  16 #include <cppunit/TestFixture.h>
  17 #include <cppunit/extensions/HelperMacros.h>
  18
  19 #include <o3tl/span.hxx>
  20
  21 namespace {
  22
  23 class Test: public CppUnit::TestFixture {
  24 private:
  25     CPPUNIT_TEST_SUITE(Test);
  26     CPPUNIT_TEST(testOperations);
  27     CPPUNIT_TEST_SUITE_END();
  28
  29
  30     void testOperations() {
  31         int const some_data[] { 1, 2, 3 };
  32         o3tl::span<int const> v(some_data);
  33
  34         CPPUNIT_ASSERT_EQUAL(1, *v.begin());
  35         CPPUNIT_ASSERT_EQUAL(
  36             o3tl::span<int>::difference_type(3), v.end() - v.begin());
  37         CPPUNIT_ASSERT_EQUAL(3, *v.rbegin());
  38         CPPUNIT_ASSERT_EQUAL(
  39             o3tl::span<int>::difference_type(3), v.rend() - v.rbegin());
  40         CPPUNIT_ASSERT_EQUAL(std::size_t(3), v.size());
  41         CPPUNIT_ASSERT(!v.empty());
  42         CPPUNIT_ASSERT_EQUAL(2, v[1]);
  43         CPPUNIT_ASSERT_EQUAL(1, *v.data());
  44         {
  45             int const d1[] { 1, 2 };
  46             int const d2[] { 3, 4, 5, 6 };
  47             o3tl::span<int const> v1( d1 );
  48             o3tl::span<int const> v2( d2 );
  49             std::swap(v1, v2);
  50             CPPUNIT_ASSERT_EQUAL(std::size_t(4), v1.size());
  51             CPPUNIT_ASSERT_EQUAL(std::size_t(2), v2.size());
  52         }
  53     }
  54 };
  55
  56 CPPUNIT_TEST_SUITE_REGISTRATION(Test);
  57
  58 }
  59
  60 /* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */