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03bff6651c
These were already trying to be type parameterized over different key/value pairs. I've realized this goal using GoogleTest's typed test functionality. This allows us to easily replicate the tests across different key/value combinations and soon different mapping templates. I've fixed a few bugs in the tests and extended them a bit in the process as many tests were only applying to the int->int mapping. llvm-svn: 158589
236 lines
6.6 KiB
C++
236 lines
6.6 KiB
C++
//===- llvm/unittest/ADT/DenseMapMap.cpp - DenseMap unit tests --*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "gtest/gtest.h"
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#include "llvm/ADT/DenseMap.h"
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#include <map>
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using namespace llvm;
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namespace {
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// Test fixture
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template <typename T>
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class DenseMapTest : public testing::Test {
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protected:
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T Map;
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typename T::key_type getKey(int i = 0);
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typename T::mapped_type getValue(int i = 0);
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};
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template <>
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uint32_t DenseMapTest<DenseMap<uint32_t, uint32_t> >::getKey(int i) {
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return i;
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}
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template <>
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uint32_t DenseMapTest<DenseMap<uint32_t, uint32_t> >::getValue(int i) {
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return 42 + i;
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}
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template <>
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uint32_t *DenseMapTest<DenseMap<uint32_t *, uint32_t *> >::getKey(int i) {
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static uint32_t dummy_arr1[8192];
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assert(i < 8192 && "Only support 8192 dummy keys.");
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return &dummy_arr1[i];
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}
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template <>
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uint32_t *DenseMapTest<DenseMap<uint32_t *, uint32_t *> >::getValue(int i) {
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static uint32_t dummy_arr2[8192];
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assert(i < 8192 && "Only support 8192 dummy values.");
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return &dummy_arr2[i];
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}
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// Register these types for testing.
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typedef ::testing::Types<DenseMap<uint32_t, uint32_t>,
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DenseMap<uint32_t *, uint32_t *> > DenseMapTestTypes;
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TYPED_TEST_CASE(DenseMapTest, DenseMapTestTypes);
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// Empty map tests
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TYPED_TEST(DenseMapTest, EmptyIntMapTest) {
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// Size tests
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EXPECT_EQ(0u, this->Map.size());
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EXPECT_TRUE(this->Map.empty());
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// Iterator tests
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EXPECT_TRUE(this->Map.begin() == this->Map.end());
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// Lookup tests
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EXPECT_FALSE(this->Map.count(this->getKey()));
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EXPECT_TRUE(this->Map.find(this->getKey()) == this->Map.end());
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EXPECT_EQ(typename TypeParam::mapped_type(),
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this->Map.lookup(this->getKey()));
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}
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// Constant map tests
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TYPED_TEST(DenseMapTest, ConstEmptyMapTest) {
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const TypeParam &ConstMap = this->Map;
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EXPECT_EQ(0u, ConstMap.size());
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EXPECT_TRUE(ConstMap.empty());
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EXPECT_TRUE(ConstMap.begin() == ConstMap.end());
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}
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// A map with a single entry
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TYPED_TEST(DenseMapTest, SingleEntryMapTest) {
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this->Map[this->getKey()] = this->getValue();
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// Size tests
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EXPECT_EQ(1u, this->Map.size());
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EXPECT_FALSE(this->Map.begin() == this->Map.end());
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EXPECT_FALSE(this->Map.empty());
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// Iterator tests
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typename TypeParam::iterator it = this->Map.begin();
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EXPECT_EQ(this->getKey(), it->first);
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EXPECT_EQ(this->getValue(), it->second);
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++it;
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EXPECT_TRUE(it == this->Map.end());
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// Lookup tests
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EXPECT_TRUE(this->Map.count(this->getKey()));
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EXPECT_TRUE(this->Map.find(this->getKey()) == this->Map.begin());
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EXPECT_EQ(this->getValue(), this->Map.lookup(this->getKey()));
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EXPECT_EQ(this->getValue(), this->Map[this->getKey()]);
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}
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// Test clear() method
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TYPED_TEST(DenseMapTest, ClearTest) {
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this->Map[this->getKey()] = this->getValue();
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this->Map.clear();
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EXPECT_EQ(0u, this->Map.size());
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EXPECT_TRUE(this->Map.empty());
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EXPECT_TRUE(this->Map.begin() == this->Map.end());
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}
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// Test erase(iterator) method
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TYPED_TEST(DenseMapTest, EraseTest) {
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this->Map[this->getKey()] = this->getValue();
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this->Map.erase(this->Map.begin());
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EXPECT_EQ(0u, this->Map.size());
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EXPECT_TRUE(this->Map.empty());
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EXPECT_TRUE(this->Map.begin() == this->Map.end());
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}
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// Test erase(value) method
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TYPED_TEST(DenseMapTest, EraseTest2) {
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this->Map[this->getKey()] = this->getValue();
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this->Map.erase(this->getKey());
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EXPECT_EQ(0u, this->Map.size());
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EXPECT_TRUE(this->Map.empty());
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EXPECT_TRUE(this->Map.begin() == this->Map.end());
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}
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// Test insert() method
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TYPED_TEST(DenseMapTest, InsertTest) {
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this->Map.insert(std::make_pair(this->getKey(), this->getValue()));
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EXPECT_EQ(1u, this->Map.size());
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EXPECT_EQ(this->getValue(), this->Map[this->getKey()]);
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}
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// Test copy constructor method
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TYPED_TEST(DenseMapTest, CopyConstructorTest) {
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this->Map[this->getKey()] = this->getValue();
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TypeParam copyMap(this->Map);
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EXPECT_EQ(1u, copyMap.size());
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EXPECT_EQ(this->getValue(), copyMap[this->getKey()]);
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}
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// Test assignment operator method
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TYPED_TEST(DenseMapTest, AssignmentTest) {
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this->Map[this->getKey()] = this->getValue();
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TypeParam copyMap = this->Map;
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EXPECT_EQ(1u, copyMap.size());
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EXPECT_EQ(this->getValue(), copyMap[this->getKey()]);
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}
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// A more complex iteration test
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TYPED_TEST(DenseMapTest, IterationTest) {
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bool visited[100];
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std::map<typename TypeParam::key_type, unsigned> visitedIndex;
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// Insert 100 numbers into the map
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for (int i = 0; i < 100; ++i) {
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visited[i] = false;
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visitedIndex[this->getKey(i)] = i;
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this->Map[this->getKey(i)] = this->getValue(i);
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}
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// Iterate over all numbers and mark each one found.
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for (typename TypeParam::iterator it = this->Map.begin();
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it != this->Map.end(); ++it)
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visited[visitedIndex[it->first]] = true;
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// Ensure every number was visited.
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for (int i = 0; i < 100; ++i)
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ASSERT_TRUE(visited[i]) << "Entry #" << i << " was never visited";
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}
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// const_iterator test
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TYPED_TEST(DenseMapTest, ConstIteratorTest) {
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// Check conversion from iterator to const_iterator.
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typename TypeParam::iterator it = this->Map.begin();
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typename TypeParam::const_iterator cit(it);
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EXPECT_TRUE(it == cit);
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// Check copying of const_iterators.
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typename TypeParam::const_iterator cit2(cit);
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EXPECT_TRUE(cit == cit2);
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}
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// Key traits that allows lookup with either an unsigned or char* key;
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// In the latter case, "a" == 0, "b" == 1 and so on.
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struct TestDenseMapInfo {
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static inline unsigned getEmptyKey() { return ~0; }
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static inline unsigned getTombstoneKey() { return ~0U - 1; }
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static unsigned getHashValue(const unsigned& Val) { return Val * 37U; }
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static unsigned getHashValue(const char* Val) {
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return (unsigned)(Val[0] - 'a') * 37U;
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}
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static bool isEqual(const unsigned& LHS, const unsigned& RHS) {
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return LHS == RHS;
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}
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static bool isEqual(const char* LHS, const unsigned& RHS) {
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return (unsigned)(LHS[0] - 'a') == RHS;
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}
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};
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// find_as() tests
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TEST(DenseMapCustomTest, FindAsTest) {
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DenseMap<unsigned, unsigned, TestDenseMapInfo> map;
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map[0] = 1;
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map[1] = 2;
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map[2] = 3;
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// Size tests
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EXPECT_EQ(3u, map.size());
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// Normal lookup tests
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EXPECT_EQ(1, map.count(1));
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EXPECT_EQ(1u, map.find(0)->second);
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EXPECT_EQ(2u, map.find(1)->second);
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EXPECT_EQ(3u, map.find(2)->second);
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EXPECT_TRUE(map.find(3) == map.end());
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// find_as() tests
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EXPECT_EQ(1u, map.find_as("a")->second);
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EXPECT_EQ(2u, map.find_as("b")->second);
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EXPECT_EQ(3u, map.find_as("c")->second);
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EXPECT_TRUE(map.find_as("d") == map.end());
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}
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}
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