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Fix a typo that made ImmutableMap::getMaxElement() useless.

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Add a basic unit test for ImmutableMap. Found by inspection.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165907 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2012-10-14 15:56:39 +00:00
parent 8e13dedd41
commit 658c62862e
2 changed files with 51 additions and 1 deletions
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2
include/llvm/ADT/ImmutableSet.h
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@ -89,7 +89,7 @@ public:
ImutAVLTree* getMaxElement() {
ImutAVLTree *T = this;
ImutAVLTree *Right = T->getRight();
while (Right) { T = right; right = T->getRight(); }
while (Right) { T = Right; Right = T->getRight(); }
return T;
}

50
unittests/ADT/ImmutableMapTest.cpp Normal file
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@ -0,0 +1,50 @@
//===----------- ImmutableMapTest.cpp - ImmutableMap unit tests ------------===//
//
// 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/ImmutableMap.h"
using namespace llvm;
namespace {
TEST(ImmutableMapTest, EmptyIntMapTest) {
ImmutableMap<int, int>::Factory f;
EXPECT_TRUE(f.getEmptyMap() == f.getEmptyMap());
EXPECT_FALSE(f.getEmptyMap() != f.getEmptyMap());
EXPECT_TRUE(f.getEmptyMap().isEmpty());
ImmutableMap<int, int> S = f.getEmptyMap();
EXPECT_EQ(0u, S.getHeight());
EXPECT_TRUE(S.begin() == S.end());
EXPECT_FALSE(S.begin() != S.end());
}
TEST(ImmutableMapTest, MultiElemIntMapTest) {
ImmutableMap<int, int>::Factory f;
ImmutableMap<int, int> S = f.getEmptyMap();
ImmutableMap<int, int> S2 = f.add(f.add(f.add(S, 3, 10), 4, 11), 5, 12);
EXPECT_TRUE(S.isEmpty());
EXPECT_FALSE(S2.isEmpty());
EXPECT_EQ(0, S.lookup(3));
EXPECT_EQ(0, S.lookup(9));
EXPECT_EQ(10, *S2.lookup(3));
EXPECT_EQ(11, *S2.lookup(4));
EXPECT_EQ(12, *S2.lookup(5));
EXPECT_EQ(5, S2.getMaxElement()->first);
EXPECT_EQ(3U, S2.getHeight());
}
}