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extern/STLport/5.2.1/test/unit/vector_test.cpp

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+//Has to be first for StackAllocator swap overload to be taken
+//into account (at least using GCC 4.0.1)
+#include "stack_allocator.h"
+
+#include <vector>
+#include <algorithm>
+#if !defined (STLPORT) || defined (_STLP_USE_EXCEPTIONS)
+# include <stdexcept>
+#endif
+
+#include "cppunit/cppunit_proxy.h"
+
+#if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES)
+using namespace std;
+#endif
+
+//
+// TestCase class
+//
+class VectorTest : public CPPUNIT_NS::TestCase
+{
+  CPPUNIT_TEST_SUITE(VectorTest);
+  CPPUNIT_TEST(vec_test_1);
+  CPPUNIT_TEST(vec_test_2);
+  CPPUNIT_TEST(vec_test_3);
+  CPPUNIT_TEST(vec_test_4);
+  CPPUNIT_TEST(vec_test_5);
+  CPPUNIT_TEST(vec_test_6);
+  CPPUNIT_TEST(vec_test_7);
+  CPPUNIT_TEST(capacity);
+  CPPUNIT_TEST(at);
+  CPPUNIT_TEST(pointer);
+  CPPUNIT_TEST(auto_ref);
+  CPPUNIT_TEST(allocator_with_state);
+  CPPUNIT_TEST(iterators);
+#if defined (STLPORT) && defined (_STLP_NO_MEMBER_TEMPLATES)
+  CPPUNIT_IGNORE;
+#endif
+  CPPUNIT_TEST(optimizations_check);
+  CPPUNIT_TEST(assign_check);
+  CPPUNIT_STOP_IGNORE;
+  CPPUNIT_TEST(ebo);
+  CPPUNIT_TEST_SUITE_END();
+
+protected:
+  void vec_test_1();
+  void vec_test_2();
+  void vec_test_3();
+  void vec_test_4();
+  void vec_test_5();
+  void vec_test_6();
+  void vec_test_7();
+  void capacity();
+  void at();
+  void pointer();
+  void auto_ref();
+  void allocator_with_state();
+  void iterators();
+  void optimizations_check();
+  void assign_check();
+  void ebo();
+};
+
+CPPUNIT_TEST_SUITE_REGISTRATION(VectorTest);
+
+//
+// tests implementation
+//
+void VectorTest::vec_test_1()
+{
+  vector<int> v1; // Empty vector of integers.
+
+  CPPUNIT_ASSERT( v1.empty() == true );
+  CPPUNIT_ASSERT( v1.size() == 0 );
+
+  // CPPUNIT_ASSERT( v1.max_size() == INT_MAX / sizeof(int) );
+  // cout << "max_size = " << v1.max_size() << endl;
+  v1.push_back(42); // Add an integer to the vector.
+
+  CPPUNIT_ASSERT( v1.size() == 1 );
+
+  CPPUNIT_ASSERT( v1[0] == 42 );
+
+  {
+    vector<vector<int> > vect(10);
+    vector<vector<int> >::iterator it(vect.begin()), end(vect.end());
+    for (; it != end; ++it) {
+      CPPUNIT_ASSERT( (*it).empty() );
+      CPPUNIT_ASSERT( (*it).size() == 0 );
+      CPPUNIT_ASSERT( (*it).capacity() == 0 );
+      CPPUNIT_ASSERT( (*it).begin() == (*it).end() );
+    }
+  }
+}
+
+void VectorTest::vec_test_2()
+{
+  vector<double> v1; // Empty vector of doubles.
+  v1.push_back(32.1);
+  v1.push_back(40.5);
+  vector<double> v2; // Another empty vector of doubles.
+  v2.push_back(3.56);
+
+  CPPUNIT_ASSERT( v1.size() == 2 );
+  CPPUNIT_ASSERT( v1[0] == 32.1 );
+  CPPUNIT_ASSERT( v1[1] == 40.5 );
+
+  CPPUNIT_ASSERT( v2.size() == 1 );
+  CPPUNIT_ASSERT( v2[0] == 3.56 );
+  size_t v1Cap = v1.capacity();
+  size_t v2Cap = v2.capacity();
+
+  v1.swap(v2); // Swap the vector's contents.
+
+  CPPUNIT_ASSERT( v1.size() == 1 );
+  CPPUNIT_ASSERT( v1.capacity() == v2Cap );
+  CPPUNIT_ASSERT( v1[0] == 3.56 );
+
+  CPPUNIT_ASSERT( v2.size() == 2 );
+  CPPUNIT_ASSERT( v2.capacity() == v1Cap );
+  CPPUNIT_ASSERT( v2[0] == 32.1 );
+  CPPUNIT_ASSERT( v2[1] == 40.5 );
+
+  v2 = v1; // Assign one vector to another.
+
+  CPPUNIT_ASSERT( v2.size() == 1 );
+  CPPUNIT_ASSERT( v2[0] == 3.56 );
+}
+
+void VectorTest::vec_test_3()
+{
+  typedef vector<char> vec_type;
+
+  vec_type v1; // Empty vector of characters.
+  v1.push_back('h');
+  v1.push_back('i');
+
+  CPPUNIT_ASSERT( v1.size() == 2 );
+  CPPUNIT_ASSERT( v1[0] == 'h' );
+  CPPUNIT_ASSERT( v1[1] == 'i' );
+
+  vec_type v2(v1.begin(), v1.end());
+  v2[1] = 'o'; // Replace second character.
+
+  CPPUNIT_ASSERT( v2.size() == 2 );
+  CPPUNIT_ASSERT( v2[0] == 'h' );
+  CPPUNIT_ASSERT( v2[1] == 'o' );
+
+  CPPUNIT_ASSERT( (v1 == v2) == false );
+
+  CPPUNIT_ASSERT( (v1 < v2) == true );
+}
+
+void VectorTest::vec_test_4()
+{
+  vector<int> v(4);
+
+  v[0] = 1;
+  v[1] = 4;
+  v[2] = 9;
+  v[3] = 16;
+
+  CPPUNIT_ASSERT( v.front() == 1 );
+  CPPUNIT_ASSERT( v.back() == 16 );
+
+  v.push_back(25);
+
+  CPPUNIT_ASSERT( v.back() == 25 );
+  CPPUNIT_ASSERT( v.size() == 5 );
+
+  v.pop_back();
+
+  CPPUNIT_ASSERT( v.back() == 16 );
+  CPPUNIT_ASSERT( v.size() == 4 );
+}
+
+void VectorTest::vec_test_5()
+{
+  int array [] = { 1, 4, 9, 16 };
+
+  vector<int> v(array, array + 4);
+
+  CPPUNIT_ASSERT( v.size() == 4 );
+
+  CPPUNIT_ASSERT( v[0] == 1 );
+  CPPUNIT_ASSERT( v[1] == 4 );
+  CPPUNIT_ASSERT( v[2] == 9 );
+  CPPUNIT_ASSERT( v[3] == 16 );
+}
+
+void VectorTest::vec_test_6()
+{
+  int array [] = { 1, 4, 9, 16, 25, 36 };
+
+  vector<int> v(array, array + 6);
+  vector<int>::iterator vit;
+
+  CPPUNIT_ASSERT( v.size() == 6 );
+  CPPUNIT_ASSERT( v[0] == 1 );
+  CPPUNIT_ASSERT( v[1] == 4 );
+  CPPUNIT_ASSERT( v[2] == 9 );
+  CPPUNIT_ASSERT( v[3] == 16 );
+  CPPUNIT_ASSERT( v[4] == 25 );
+  CPPUNIT_ASSERT( v[5] == 36 );
+
+  vit = v.erase( v.begin() ); // Erase first element.
+  CPPUNIT_ASSERT( *vit == 4 );
+
+  CPPUNIT_ASSERT( v.size() == 5 );
+  CPPUNIT_ASSERT( v[0] == 4 );
+  CPPUNIT_ASSERT( v[1] == 9 );
+  CPPUNIT_ASSERT( v[2] == 16 );
+  CPPUNIT_ASSERT( v[3] == 25 );
+  CPPUNIT_ASSERT( v[4] == 36 );
+
+  vit = v.erase(v.end() - 1); // Erase last element.
+  CPPUNIT_ASSERT( vit == v.end() );
+
+  CPPUNIT_ASSERT( v.size() == 4 );
+  CPPUNIT_ASSERT( v[0] == 4 );
+  CPPUNIT_ASSERT( v[1] == 9 );
+  CPPUNIT_ASSERT( v[2] == 16 );
+  CPPUNIT_ASSERT( v[3] == 25 );
+
+
+  v.erase(v.begin() + 1, v.end() - 1); // Erase all but first and last.
+
+  CPPUNIT_ASSERT( v.size() == 2 );
+  CPPUNIT_ASSERT( v[0] == 4 );
+  CPPUNIT_ASSERT( v[1] == 25 );
+
+}
+
+void VectorTest::vec_test_7()
+{
+  int array1 [] = { 1, 4, 25 };
+  int array2 [] = { 9, 16 };
+
+  vector<int> v(array1, array1 + 3);
+  vector<int>::iterator vit;
+  vit = v.insert(v.begin(), 0); // Insert before first element.
+  CPPUNIT_ASSERT( *vit == 0 );
+
+  vit = v.insert(v.end(), 36);  // Insert after last element.
+  CPPUNIT_ASSERT( *vit == 36 );
+
+  CPPUNIT_ASSERT( v.size() == 5 );
+  CPPUNIT_ASSERT( v[0] == 0 );
+  CPPUNIT_ASSERT( v[1] == 1 );
+  CPPUNIT_ASSERT( v[2] == 4 );
+  CPPUNIT_ASSERT( v[3] == 25 );
+  CPPUNIT_ASSERT( v[4] == 36 );
+
+  // Insert contents of array2 before fourth element.
+  v.insert(v.begin() + 3, array2, array2 + 2);
+
+  CPPUNIT_ASSERT( v.size() == 7 );
+
+  CPPUNIT_ASSERT( v[0] == 0 );
+  CPPUNIT_ASSERT( v[1] == 1 );
+  CPPUNIT_ASSERT( v[2] == 4 );
+  CPPUNIT_ASSERT( v[3] == 9 );
+  CPPUNIT_ASSERT( v[4] == 16 );
+  CPPUNIT_ASSERT( v[5] == 25 );
+  CPPUNIT_ASSERT( v[6] == 36 );
+
+  v.clear();
+  CPPUNIT_ASSERT( v.empty() );
+
+  v.insert(v.begin(), 5, 10);
+  CPPUNIT_ASSERT( v.size() == 5 );
+  CPPUNIT_ASSERT( v[0] == 10 );
+  CPPUNIT_ASSERT( v[1] == 10 );
+  CPPUNIT_ASSERT( v[2] == 10 );
+  CPPUNIT_ASSERT( v[3] == 10 );
+  CPPUNIT_ASSERT( v[4] == 10 );
+
+  /*
+  {
+    vector<float> vf(2.0f, 3.0f);
+    CPPUNIT_ASSERT( vf.size() == 2 );
+    CPPUNIT_ASSERT( vf.front() == 3.0f );
+    CPPUNIT_ASSERT( vf.back() == 3.0f );
+  }
+  */
+}
+
+struct TestStruct
+{
+  unsigned int a[3];
+};
+
+void VectorTest::capacity()
+{
+  {
+    vector<int> v;
+
+    CPPUNIT_ASSERT( v.capacity() == 0 );
+    v.push_back(42);
+    CPPUNIT_ASSERT( v.capacity() >= 1 );
+    v.reserve(5000);
+    CPPUNIT_ASSERT( v.capacity() >= 5000 );
+  }
+
+  {
+    //Test that used to generate an assertion when using __debug_alloc.
+    vector<TestStruct> va;
+    va.reserve(1);
+    va.reserve(2);
+  }
+}
+
+void VectorTest::at() {
+  vector<int> v;
+  vector<int> const& cv = v;
+
+  v.push_back(10);
+  CPPUNIT_ASSERT( v.at(0) == 10 );
+  v.at(0) = 20;
+  CPPUNIT_ASSERT( cv.at(0) == 20 );
+
+#if !defined (STLPORT) || defined (_STLP_USE_EXCEPTIONS)
+  try {
+    v.at(1) = 20;
+    CPPUNIT_FAIL;
+  }
+  catch (out_of_range const&) {
+  }
+  catch (...) {
+    CPPUNIT_FAIL;
+  }
+#endif
+}
+
+void VectorTest::pointer()
+{
+  vector<int *> v1;
+  vector<int *> v2 = v1;
+  vector<int *> v3;
+
+  v3.insert( v3.end(), v1.begin(), v1.end() );
+}
+
+void VectorTest::auto_ref()
+{
+  vector<int> ref;
+  for (int i = 0; i < 5; ++i) {
+    ref.push_back(i);
+  }
+
+  vector<vector<int> > v_v_int(1, ref);
+  v_v_int.push_back(v_v_int[0]);
+  v_v_int.push_back(ref);
+  v_v_int.push_back(v_v_int[0]);
+  v_v_int.push_back(v_v_int[0]);
+  v_v_int.push_back(ref);
+
+  vector<vector<int> >::iterator vvit(v_v_int.begin()), vvitEnd(v_v_int.end());
+  for (; vvit != vvitEnd; ++vvit) {
+    CPPUNIT_ASSERT( *vvit == ref );
+  }
+
+  /*
+   * Forbidden by the Standard:
+  v_v_int.insert(v_v_int.end(), v_v_int.begin(), v_v_int.end());
+  for (vvit = v_v_int.begin(), vvitEnd = v_v_int.end();
+       vvit != vvitEnd; ++vvit) {
+    CPPUNIT_ASSERT( *vvit == ref );
+  }
+   */
+}
+
+void VectorTest::allocator_with_state()
+  {
+    char buf1[1024];
+    StackAllocator<int> stack1(buf1, buf1 + sizeof(buf1));
+
+    char buf2[1024];
+    StackAllocator<int> stack2(buf2, buf2 + sizeof(buf2));
+
+    {
+      typedef vector<int, StackAllocator<int> > VectorInt;
+      VectorInt vint1(10, 0, stack1);
+      VectorInt vint1Cpy(vint1);
+
+      VectorInt vint2(10, 1, stack2);
+      VectorInt vint2Cpy(vint2);
+
+      vint1.swap(vint2);
+
+      CPPUNIT_ASSERT( vint1.get_allocator().swaped() );
+      CPPUNIT_ASSERT( vint2.get_allocator().swaped() );
+
+      CPPUNIT_ASSERT( vint1 == vint2Cpy );
+      CPPUNIT_ASSERT( vint2 == vint1Cpy );
+      CPPUNIT_ASSERT( vint1.get_allocator() == stack2 );
+      CPPUNIT_ASSERT( vint2.get_allocator() == stack1 );
+    }
+    CPPUNIT_ASSERT( stack1.ok() );
+    CPPUNIT_ASSERT( stack2.ok() );
+  }
+
+struct Point {
+  int x, y;
+};
+
+struct PointEx : public Point {
+  PointEx() : builtFromBase(false) {}
+  PointEx(const Point&) : builtFromBase(true) {}
+
+  bool builtFromBase;
+};
+
+#if defined (STLPORT)
+#  if defined (_STLP_USE_NAMESPACES)
+namespace std {
+#  endif
+  _STLP_TEMPLATE_NULL
+  struct __type_traits<PointEx> {
+    typedef __false_type has_trivial_default_constructor;
+    typedef __true_type has_trivial_copy_constructor;
+    typedef __true_type has_trivial_assignment_operator;
+    typedef __true_type has_trivial_destructor;
+    typedef __true_type is_POD_type;
+  };
+#  if defined (_STLP_USE_NAMESPACES)
+}
+#  endif
+#endif
+
+//This test check that vector implementation do not over optimize
+//operation as PointEx copy constructor is trivial
+void VectorTest::optimizations_check()
+{
+#if !defined (STLPORT) || !defined (_STLP_NO_MEMBER_TEMPLATES)
+  vector<Point> v1(1);
+  CPPUNIT_ASSERT( v1.size() == 1 );
+
+  vector<PointEx> v2(v1.begin(), v1.end());
+  CPPUNIT_ASSERT( v2.size() == 1 );
+  CPPUNIT_ASSERT( v2[0].builtFromBase == true );
+#endif
+}
+
+void VectorTest::assign_check()
+{
+#if !defined (STLPORT) || !defined (_STLP_NO_MEMBER_TEMPLATES)
+  vector<int> v(3,1);
+  int array[] = { 1, 2, 3, 4, 5 };
+  
+  v.assign( array, array + 5 );
+  CPPUNIT_CHECK( v[4] == 5 );
+  CPPUNIT_CHECK( v[0] == 1 );
+  CPPUNIT_CHECK( v[1] == 2 );
+#endif
+}
+
+void VectorTest::iterators()
+{
+  vector<int> vint(10, 0);
+  vector<int> const& crvint = vint;
+
+  CPPUNIT_ASSERT( vint.begin() == vint.begin() );
+  CPPUNIT_ASSERT( crvint.begin() == vint.begin() );
+  CPPUNIT_ASSERT( vint.begin() == crvint.begin() );
+  CPPUNIT_ASSERT( crvint.begin() == crvint.begin() );
+
+  CPPUNIT_ASSERT( vint.begin() != vint.end() );
+  CPPUNIT_ASSERT( crvint.begin() != vint.end() );
+  CPPUNIT_ASSERT( vint.begin() != crvint.end() );
+  CPPUNIT_ASSERT( crvint.begin() != crvint.end() );
+
+  CPPUNIT_ASSERT( vint.rbegin() == vint.rbegin() );
+  // Not Standard:
+  //CPPUNIT_ASSERT( vint.rbegin() == crvint.rbegin() );
+  //CPPUNIT_ASSERT( crvint.rbegin() == vint.rbegin() );
+  CPPUNIT_ASSERT( crvint.rbegin() == crvint.rbegin() );
+
+  CPPUNIT_ASSERT( vint.rbegin() != vint.rend() );
+  // Not Standard:
+  //CPPUNIT_ASSERT( vint.rbegin() != crvint.rend() );
+  //CPPUNIT_ASSERT( crvint.rbegin() != vint.rend() );
+  CPPUNIT_ASSERT( crvint.rbegin() != crvint.rend() );
+}
+
+
+#if !defined (STLPORT) || \
+    !defined (_STLP_USE_PTR_SPECIALIZATIONS) || defined (_STLP_CLASS_PARTIAL_SPECIALIZATION)
+/* Simple compilation test: Check that nested types like iterator
+ * can be access even if type used to instanciate container is not
+ * yet completely defined.
+ */
+class IncompleteClass
+{
+  vector<IncompleteClass> instances;
+  typedef vector<IncompleteClass>::iterator it;
+};
+#endif
+
+#if defined (STLPORT)
+#  define NOTHROW _STLP_NOTHROW
+#else
+#  define NOTHROW throw()
+#endif
+
+/* This allocator implementation purpose is simply to break some
+ * internal STLport mecanism specific to the STLport own allocator
+ * implementation. */
+template <class _Tp>
+struct NotSTLportAllocator : public allocator<_Tp> {
+#if !defined (STLPORT) || defined (_STLP_MEMBER_TEMPLATE_CLASSES)
+  template <class _Tp1> struct rebind {
+    typedef NotSTLportAllocator<_Tp1> other;
+  };
+#endif
+  NotSTLportAllocator() NOTHROW {}
+#if !defined (STLPORT) || defined (_STLP_MEMBER_TEMPLATES)
+  template <class _Tp1> NotSTLportAllocator(const NotSTLportAllocator<_Tp1>&) NOTHROW {}
+#endif
+  NotSTLportAllocator(const NotSTLportAllocator<_Tp>&) NOTHROW {}
+  ~NotSTLportAllocator() NOTHROW {}
+};
+
+/* This test check a potential issue with empty base class
+ * optimization. Some compilers (VC6) do not implement it
+ * correctly resulting ina wrong behavior. */
+void VectorTest::ebo()
+{
+  // We use heap memory as test failure can corrupt vector internal
+  // representation making executable crash on vector destructor invocation.
+  // We prefer a simple memory leak, internal corruption should be reveal
+  // by size or capacity checks.
+  typedef vector<int, NotSTLportAllocator<int> > V;
+  V *pv1 = new V(1, 1);
+  V *pv2 = new V(10, 2);
+
+  size_t v1Capacity = pv1->capacity();
+  size_t v2Capacity = pv2->capacity();
+
+  pv1->swap(*pv2);
+
+  CPPUNIT_ASSERT( pv1->size() == 10 );
+  CPPUNIT_ASSERT( pv1->capacity() == v2Capacity );
+  CPPUNIT_ASSERT( (*pv1)[5] == 2 );
+
+  CPPUNIT_ASSERT( pv2->size() == 1 );
+  CPPUNIT_ASSERT( pv2->capacity() == v1Capacity );
+  CPPUNIT_ASSERT( (*pv2)[0] == 1 );
+
+  delete pv2;
+  delete pv1;
+}
+