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

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+#include <numeric>
+#include <string>
+#include <iterator>
+#include <vector>
+#include <algorithm>
+#include <functional>
+
+#include "iota.h"
+#include "cppunit/cppunit_proxy.h"
+
+#if !defined (STLPORT) || defined(_STLP_USE_NAMESPACES)
+using namespace std;
+#endif
+
+//
+// TestCase class
+//
+class SetUnionTest : public CPPUNIT_NS::TestCase
+{
+  CPPUNIT_TEST_SUITE(SetUnionTest);
+  CPPUNIT_TEST(setunon0);
+  CPPUNIT_TEST(setunon1);
+  CPPUNIT_TEST(setunon2);
+  CPPUNIT_TEST_SUITE_END();
+
+protected:
+  void setunon0();
+  void setunon1();
+  void setunon2();
+};
+
+CPPUNIT_TEST_SUITE_REGISTRATION(SetUnionTest);
+
+//
+// tests implementation
+//
+void SetUnionTest::setunon0()
+{
+  int v1[3] = { 13, 18, 23 };
+  int v2[4] = { 10, 13, 17, 23 };
+  int result[7] = { 0, 0, 0, 0, 0, 0, 0 };
+
+  set_union((int*)v1, (int*)v1 + 3, (int*)v2, (int*)v2 + 4, (int*)result);
+
+  CPPUNIT_ASSERT(result[0]==10);
+  CPPUNIT_ASSERT(result[1]==13);
+  CPPUNIT_ASSERT(result[2]==17);
+  CPPUNIT_ASSERT(result[3]==18);
+  CPPUNIT_ASSERT(result[4]==23);
+  CPPUNIT_ASSERT(result[5]==0);
+  CPPUNIT_ASSERT(result[6]==0);
+}
+
+void SetUnionTest::setunon1()
+{
+  vector <int> v1(10);
+  __iota(v1.begin(), v1.end(), 0);
+  vector <int> v2(10);
+  __iota(v2.begin(), v2.end(), 7);
+
+  vector<int> diff;
+  set_union(v1.begin(), v1.end(), v2.begin(), v2.end(), back_inserter(diff));
+  CPPUNIT_ASSERT( diff.size() == 17 );
+  for (int i = 0; i < 17; ++i) {
+    CPPUNIT_ASSERT( diff[i] == i );
+  }
+}
+
+void SetUnionTest::setunon2()
+{
+  const char* word1 = "ABCDEFGHIJKLMNO";
+  const char* word2 = "LMNOPQRSTUVWXYZ";
+
+  string diff;
+  set_union(word1, word1 + ::strlen(word1), word2, word2 + ::strlen(word2),
+            back_inserter(diff), less<char>());
+  CPPUNIT_ASSERT( diff.size() == 26 );
+  for (int i = 0; i < 26; ++i) {
+    CPPUNIT_ASSERT( diff[i] == ('A' + i) );
+  }
+}