Add SetUtil tests

Author: pranavk

test/util/set_util_test.cpp

@@ -0,0 +1,46 @@
+//===----------------------------------------------------------------------===//
+//
+//                         Peloton
+//
+// set_util_test.cpp
+//
+// Identification: test/set_util_test.cpp
+//
+// Copyright (c) 2015-18, Carnegie Mellon University Database Group
+//
+//===----------------------------------------------------------------------===//
+
+#include "common/harness.h"
+#include "common/logger.h"
+
+#include <set>
+
+#include "util/set_util.h"
+
+namespace peloton {
+namespace test {
+
+//===--------------------------------------------------------------------===//
+// SetUtil Test
+//===--------------------------------------------------------------------===//
+
+class SetUtilTests : public PelotonTest {};
+
+TEST_F(SetUtilTests, DisjointTest) {
+  // Check sorted sets
+  std::set<int> setA{1, 2, 3, 4};
+  std::set<int> setB{4, 5, 6, 7};
+  EXPECT_FALSE(SetUtil::isDisjoint(setA, setB));
+
+  std::set<int> setC{9, 8, 10};
+  EXPECT_TRUE(SetUtil::isDisjoint(setA, setC));
+
+  std::set<int> setD{4, 1, 3, 2};
+  EXPECT_FALSE(SetUtil::isDisjoint(setB, setD));
+
+  std::set<int> setE;
+  EXPECT_TRUE(SetUtil::isDisjoint(setD, setE));
+}
+
+}  // namespace test
+}  // namespace peloton