Add an insert() method to MapVector. Adds the first MapVector unit test.

llvm-svn: 173505

1 files changed, 41 insertions, 0 deletions

diff --git a/llvm/unittests/ADT/MapVectorTest.cpp b/llvm/unittests/ADT/MapVectorTest.cpp
new file mode 100644
index 0000000..9f61369
--- /dev/null
+++ b/llvm/unittests/ADT/MapVectorTest.cpp
@@ -0,0 +1,41 @@
+//===- unittest/ADT/MapVectorTest.cpp - MapVector unit tests ----*- C++ -*-===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "gtest/gtest.h"
+#include "llvm/ADT/MapVector.h"
+#include <utility>
+
+using namespace llvm;
+
+TEST(MapVectorTest, insert) {
+  MapVector<int, int> MV;
+  std::pair<MapVector<int, int>::iterator, bool> R;
+
+  R = MV.insert(std::make_pair(1, 2));
+  ASSERT_EQ(R.first, MV.begin());
+  EXPECT_EQ(R.first->first, 1);
+  EXPECT_EQ(R.first->second, 2);
+  EXPECT_TRUE(R.second);
+
+  R = MV.insert(std::make_pair(1, 3));
+  ASSERT_EQ(R.first, MV.begin());
+  EXPECT_EQ(R.first->first, 1);
+  EXPECT_EQ(R.first->second, 2);
+  EXPECT_FALSE(R.second);
+
+  R = MV.insert(std::make_pair(4, 5));
+  ASSERT_NE(R.first, MV.end());
+  EXPECT_EQ(R.first->first, 4);
+  EXPECT_EQ(R.first->second, 5);
+  EXPECT_TRUE(R.second);
+
+  EXPECT_EQ(MV.size(), 2u);
+  EXPECT_EQ(MV[1], 2);
+  EXPECT_EQ(MV[4], 5);
+}