[llvm] r251736 - Add a unittest for SmallDenseMap that tests assigning a SmallDenseMap when it is not small.

[Michael Gottesman via llvm-commits]

Author: mgottesman
Date: Sat Oct 31 00:23:53 2015
New Revision: 251736

URL: http://llvm.org/viewvc/llvm-project?rev=251736&view=rev
Log:
Add a unittest for SmallDenseMap that tests assigning a SmallDenseMap when it is not small.

This complements CopyConstructorNotSmallTest. If we are testing the copy
constructor in such a way, we should also probably test assignment in the same
way.

Modified:
    llvm/trunk/unittests/ADT/DenseMapTest.cpp

Modified: llvm/trunk/unittests/ADT/DenseMapTest.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/unittests/ADT/DenseMapTest.cpp?rev=251736&r1=251735&r2=251736&view=diff
==============================================================================
--- llvm/trunk/unittests/ADT/DenseMapTest.cpp (original)
+++ llvm/trunk/unittests/ADT/DenseMapTest.cpp Sat Oct 31 00:23:53 2015
@@ -252,6 +252,22 @@ TYPED_TEST(DenseMapTest, AssignmentTest)
   EXPECT_EQ(this->getValue(), copyMap[this->getKey()]);
 }
 
+TYPED_TEST(DenseMapTest, AssignmentTestNotSmall) {
+  for (int Key = 0; Key < 5; ++Key)
+    this->Map[this->getKey(Key)] = this->getValue(Key);
+  TypeParam copyMap = this->Map;
+
+  EXPECT_EQ(5u, copyMap.size());
+  for (int Key = 0; Key < 5; ++Key)
+    EXPECT_EQ(this->getValue(Key), copyMap[this->getKey(Key)]);
+
+  // test self-assignment.
+  copyMap = copyMap;
+  EXPECT_EQ(5u, copyMap.size());
+  for (int Key = 0; Key < 5; ++Key)
+    EXPECT_EQ(this->getValue(Key), copyMap[this->getKey(Key)]);
+}
+
 // Test swap method
 TYPED_TEST(DenseMapTest, SwapTest) {
   this->Map[this->getKey()] = this->getValue();