genericopenlibs/cppstdlib/stl/test/unit/equal_test.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 02 Feb 2010 02:01:42 +0200
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#include <vector>
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#include <algorithm>
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#include <functional>
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#include "cppunit/cppunit_proxy.h"
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#if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES)
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using namespace std;
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#endif
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//
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// TestCase class
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//
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class EqualTest : public CPPUNIT_NS::TestCase
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{
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  CPPUNIT_TEST_SUITE(EqualTest);
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  CPPUNIT_TEST(equal_range0);
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  CPPUNIT_TEST(equal_range1);
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  CPPUNIT_TEST(equal_range2);
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  CPPUNIT_TEST(equal0);
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  CPPUNIT_TEST(equal1);
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  CPPUNIT_TEST(equal2);
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  CPPUNIT_TEST(equalto);
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  CPPUNIT_TEST_SUITE_END();
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protected:
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  void equal_range0();
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  void equal_range1();
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  void equal_range2();
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  void equal0();
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  void equal1();
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  void equal2();
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  void equalto();
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  static bool values_squared(int a_, int b_);
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};
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CPPUNIT_TEST_SUITE_REGISTRATION(EqualTest);
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//
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// tests implementation
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//
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void EqualTest::equal_range0()
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{
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  int numbers[10] = { 0, 0, 1, 1, 2, 2, 2, 2, 3, 3 };
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  pair<int*, int*> range = equal_range((int*)numbers, (int*)numbers + 10, 2);
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  CPPUNIT_ASSERT( (range.first - numbers) == 4 );
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  CPPUNIT_ASSERT( (range.second - numbers) == 8 );
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}
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void EqualTest::equal_range1()
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{
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  typedef vector <int> IntVec;
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  IntVec v(10);
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  for (int i = 0; (size_t)i < v.size(); ++i)
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    v[i] = i / 3;
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  pair<IntVec::iterator, IntVec::iterator> range = equal_range(v.begin(), v.end(), 2);
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  CPPUNIT_ASSERT( (range.first - v.begin()) == 6 );
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  CPPUNIT_ASSERT( (range.second - v.begin()) == 9 );
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  for (; range.first != range.second; ++range.first)
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    CPPUNIT_ASSERT( *range.first == 2 );
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  range = equal_range(v.begin(), v.end(), 4);
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  CPPUNIT_ASSERT( range.first == range.second );
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  CPPUNIT_ASSERT( range.first == v.end() );
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}
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struct Test {
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  Test(int val) : value(val) {}
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  int value;
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  bool operator == (int i) const
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  { return value == i; }
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};
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bool operator < (const Test& v1, int v2)
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{ return v1.value < v2; }
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bool operator < (int v1, const Test& v2)
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{ return v1 < v2.value; }
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void EqualTest::equal_range2()
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{
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  char chars[] = "aabbccddggghhklllmqqqqssyyzz";
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  const unsigned count = sizeof(chars) - 1;
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  pair<char*, char*> range = equal_range((char*)chars, (char*)chars + count, 'q', less<char>());
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  CPPUNIT_ASSERT( (range.first - chars) == 18 );
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  CPPUNIT_ASSERT( (range.second - chars) == 22 );
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  for (; range.first != range.second; ++range.first)
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    CPPUNIT_ASSERT( *range.first == 'q' );
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  range = equal_range((char*)chars, (char*)chars + count, 'm', less<char>());
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  CPPUNIT_ASSERT( (range.second - range.first) == 1 );
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  CPPUNIT_ASSERT( *range.first == 'm' );
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  vector<Test> tv;
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  vector<Test>::iterator it;
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  pair<vector<Test>::iterator, vector<Test>::iterator> p;
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  for (int i = 0; i < 10; ++i) {
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    tv.push_back(i);
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  }
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  it = upper_bound(tv.begin(), tv.end(), 5);
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  CPPUNIT_ASSERT( it != tv.end() );
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  CPPUNIT_ASSERT( *it == 6 );
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  it = lower_bound(tv.begin(), tv.end(), 5);
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  CPPUNIT_ASSERT( it != tv.end() );
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  CPPUNIT_ASSERT( *it == 5 );
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  p = equal_range(tv.begin(), tv.end(), 5);
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  CPPUNIT_ASSERT( p.first != p.second );
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  CPPUNIT_ASSERT( p.first != tv.end() );
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  CPPUNIT_ASSERT( p.second != tv.end() );
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  CPPUNIT_ASSERT( *p.first == 5 );
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  CPPUNIT_ASSERT( *p.second == 6 );
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}
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   119
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void EqualTest::equal0()
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{
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  int numbers1[5] = { 1, 2, 3, 4, 5 };
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  int numbers2[5] = { 1, 2, 4, 8, 16 };
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  int numbers3[2] = { 1, 2 };
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  CPPUNIT_ASSERT( !equal(numbers1, numbers1 + 5, numbers2) );
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  CPPUNIT_ASSERT( equal(numbers3, numbers3 + 2, numbers1) );
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}
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void EqualTest::equal1()
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{
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  vector <int> v1(10);
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  for (int i = 0; (size_t)i < v1.size(); ++i)
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    v1[i] = i;
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  vector <int> v2(10);
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  CPPUNIT_ASSERT( !equal(v1.begin(), v1.end(), v2.begin()) );
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  copy(v1.begin(), v1.end(), v2.begin());
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  CPPUNIT_ASSERT( equal(v1.begin(), v1.end(), v2.begin()) )
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}
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   141
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void EqualTest::equal2()
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{
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  vector <int> v1(10);
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  vector <int> v2(10);
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  for (int i = 0; (size_t)i < v1.size(); ++i) {
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    v1[i] = i;
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    v2[i] = i * i;
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  }
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  CPPUNIT_ASSERT( equal(v1.begin(), v1.end(), v2.begin(), values_squared) );
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}
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   152
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void EqualTest::equalto()
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{
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  int input1 [4] = { 1, 7, 2, 2 };
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  int input2 [4] = { 1, 6, 2, 3 };
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  int output [4];
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  transform((int*)input1, (int*)input1 + 4, (int*)input2, (int*)output, equal_to<int>());
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  CPPUNIT_ASSERT( output[0] == 1 );
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  CPPUNIT_ASSERT( output[1] == 0 );
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  CPPUNIT_ASSERT( output[2] == 1 );
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  CPPUNIT_ASSERT( output[3] == 0 );
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}
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bool EqualTest::values_squared(int a_, int b_)
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{
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  return (a_ * a_ == b_);
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}