#include "gtest/gtest.h"
#include "llvm/ADT/StringMap.h"
#include "llvm/Support/DataTypes.h"
+#include <tuple>
using namespace llvm;
namespace {
// Empty map tests.
TEST_F(StringMapTest, EmptyMapTest) {
- SCOPED_TRACE("EmptyMapTest");
assertEmptyMap();
}
// A map with a single entry.
TEST_F(StringMapTest, SingleEntryMapTest) {
- SCOPED_TRACE("SingleEntryMapTest");
testMap[testKey] = testValue;
assertSingleItemMap();
}
// Test clear() method.
TEST_F(StringMapTest, ClearTest) {
- SCOPED_TRACE("ClearTest");
testMap[testKey] = testValue;
testMap.clear();
assertEmptyMap();
// Test erase(iterator) method.
TEST_F(StringMapTest, EraseIteratorTest) {
- SCOPED_TRACE("EraseIteratorTest");
testMap[testKey] = testValue;
testMap.erase(testMap.begin());
assertEmptyMap();
// Test erase(value) method.
TEST_F(StringMapTest, EraseValueTest) {
- SCOPED_TRACE("EraseValueTest");
testMap[testKey] = testValue;
testMap.erase(testKey);
assertEmptyMap();
// Test inserting two values and erasing one.
TEST_F(StringMapTest, InsertAndEraseTest) {
- SCOPED_TRACE("InsertAndEraseTest");
testMap[testKey] = testValue;
testMap["otherKey"] = 2;
testMap.erase("otherKey");
assertSingleItemMap();
}
+TEST_F(StringMapTest, SmallFullMapTest) {
+ // StringMap has a tricky corner case when the map is small (<8 buckets) and
+ // it fills up through a balanced pattern of inserts and erases. This can
+ // lead to inf-loops in some cases (PR13148) so we test it explicitly here.
+ llvm::StringMap<int> Map(2);
+
+ Map["eins"] = 1;
+ Map["zwei"] = 2;
+ Map["drei"] = 3;
+ Map.erase("drei");
+ Map.erase("eins");
+ Map["veir"] = 4;
+ Map["funf"] = 5;
+
+ EXPECT_EQ(3u, Map.size());
+ EXPECT_EQ(0, Map.lookup("eins"));
+ EXPECT_EQ(2, Map.lookup("zwei"));
+ EXPECT_EQ(0, Map.lookup("drei"));
+ EXPECT_EQ(4, Map.lookup("veir"));
+ EXPECT_EQ(5, Map.lookup("funf"));
+}
+
// A more complex iteration test.
TEST_F(StringMapTest, IterationTest) {
bool visited[100];
}
}
-} // end anonymous namespace
-
-namespace llvm {
-
-template <>
-class StringMapEntryInitializer<uint32_t> {
-public:
- template <typename InitTy>
- static void Initialize(StringMapEntry<uint32_t> &T, InitTy InitVal) {
- T.second = InitVal;
- }
-};
-
-} // end llvm namespace
-
-namespace {
-
// Test StringMapEntry::Create() method.
TEST_F(StringMapTest, StringMapEntryTest) {
StringMap<uint32_t>::value_type* entry =
StringMap<uint32_t>::value_type::Create(
- testKeyFirst, testKeyFirst + testKeyLength, 1u);
+ StringRef(testKeyFirst, testKeyLength), 1u);
EXPECT_STREQ(testKey, entry->first().data());
EXPECT_EQ(1u, entry->second);
free(entry);
SCOPED_TRACE("InsertTest");
testMap.insert(
StringMap<uint32_t>::value_type::Create(
- testKeyFirst, testKeyFirst + testKeyLength,
+ StringRef(testKeyFirst, testKeyLength),
testMap.getAllocator(), 1u));
assertSingleItemMap();
}
+// Test insert(pair<K, V>) method
+TEST_F(StringMapTest, InsertPairTest) {
+ bool Inserted;
+ StringMap<uint32_t>::iterator NewIt;
+ std::tie(NewIt, Inserted) =
+ testMap.insert(std::make_pair(testKeyFirst, testValue));
+ EXPECT_EQ(1u, testMap.size());
+ EXPECT_EQ(testValue, testMap[testKeyFirst]);
+ EXPECT_EQ(testKeyFirst, NewIt->first());
+ EXPECT_EQ(testValue, NewIt->second);
+ EXPECT_TRUE(Inserted);
+
+ StringMap<uint32_t>::iterator ExistingIt;
+ std::tie(ExistingIt, Inserted) =
+ testMap.insert(std::make_pair(testKeyFirst, testValue + 1));
+ EXPECT_EQ(1u, testMap.size());
+ EXPECT_EQ(testValue, testMap[testKeyFirst]);
+ EXPECT_FALSE(Inserted);
+ EXPECT_EQ(NewIt, ExistingIt);
+}
+
+// Test insert(pair<K, V>) method when rehashing occurs
+TEST_F(StringMapTest, InsertRehashingPairTest) {
+ // Check that the correct iterator is returned when the inserted element is
+ // moved to a different bucket during internal rehashing. This depends on
+ // the particular key, and the implementation of StringMap and HashString.
+ // Changes to those might result in this test not actually checking that.
+ StringMap<uint32_t> t(1);
+ EXPECT_EQ(1u, t.getNumBuckets());
+
+ StringMap<uint32_t>::iterator It =
+ t.insert(std::make_pair("abcdef", 42)).first;
+ EXPECT_EQ(2u, t.getNumBuckets());
+ EXPECT_EQ("abcdef", It->first());
+ EXPECT_EQ(42u, It->second);
+}
+
+// Create a non-default constructable value
+struct StringMapTestStruct {
+ StringMapTestStruct(int i) : i(i) {}
+ StringMapTestStruct() LLVM_DELETED_FUNCTION;
+ int i;
+};
+
+TEST_F(StringMapTest, NonDefaultConstructable) {
+ StringMap<StringMapTestStruct> t;
+ t.GetOrCreateValue("Test", StringMapTestStruct(123));
+ StringMap<StringMapTestStruct>::iterator iter = t.find("Test");
+ ASSERT_NE(iter, t.end());
+ ASSERT_EQ(iter->second.i, 123);
+}
+
+struct MoveOnly {
+ int i;
+ MoveOnly(int i) : i(i) {}
+ MoveOnly(MoveOnly &&RHS) : i(RHS.i) {}
+ MoveOnly &operator=(MoveOnly &&RHS) {
+ i = RHS.i;
+ return *this;
+ }
+
+private:
+ MoveOnly(const MoveOnly &) LLVM_DELETED_FUNCTION;
+ MoveOnly &operator=(const MoveOnly &) LLVM_DELETED_FUNCTION;
+};
+
+TEST_F(StringMapTest, MoveOnlyKey) {
+ StringMap<MoveOnly> t;
+ t.GetOrCreateValue("Test", MoveOnly(42));
+ StringRef Key = "Test";
+ StringMapEntry<MoveOnly>::Create(Key, MoveOnly(42))
+ ->Destroy();
+}
+
+TEST_F(StringMapTest, MoveConstruct) {
+ StringMap<int> A;
+ A.GetOrCreateValue("x", 42);
+ StringMap<int> B = std::move(A);
+ ASSERT_EQ(A.size(), 0u);
+ ASSERT_EQ(B.size(), 1u);
+ ASSERT_EQ(B["x"], 42);
+ ASSERT_EQ(B.count("y"), 0u);
+}
+
+TEST_F(StringMapTest, MoveAssignment) {
+ StringMap<int> A;
+ A["x"] = 42;
+ StringMap<int> B;
+ B["y"] = 117;
+ A = std::move(B);
+ ASSERT_EQ(A.size(), 1u);
+ ASSERT_EQ(B.size(), 0u);
+ ASSERT_EQ(A["y"], 117);
+ ASSERT_EQ(B.count("x"), 0u);
+}
+
+struct Countable {
+ int &InstanceCount;
+ int Number;
+ Countable(int Number, int &InstanceCount)
+ : InstanceCount(InstanceCount), Number(Number) {
+ ++InstanceCount;
+ }
+ Countable(Countable &&C) : InstanceCount(C.InstanceCount), Number(C.Number) {
+ ++InstanceCount;
+ C.Number = -1;
+ }
+ Countable(const Countable &C)
+ : InstanceCount(C.InstanceCount), Number(C.Number) {
+ ++InstanceCount;
+ }
+ Countable &operator=(Countable C) {
+ Number = C.Number;
+ return *this;
+ }
+ ~Countable() { --InstanceCount; }
+};
+
+TEST_F(StringMapTest, MoveDtor) {
+ int InstanceCount = 0;
+ StringMap<Countable> A;
+ A.GetOrCreateValue("x", Countable(42, InstanceCount));
+ ASSERT_EQ(InstanceCount, 1);
+ auto I = A.find("x");
+ ASSERT_NE(I, A.end());
+ ASSERT_EQ(I->second.Number, 42);
+
+ StringMap<Countable> B;
+ B = std::move(A);
+ ASSERT_EQ(InstanceCount, 1);
+ ASSERT_TRUE(A.empty());
+ I = B.find("x");
+ ASSERT_NE(I, B.end());
+ ASSERT_EQ(I->second.Number, 42);
+
+ B = StringMap<Countable>();
+ ASSERT_EQ(InstanceCount, 0);
+ ASSERT_TRUE(B.empty());
+}
+
} // end anonymous namespace
projects / oota-llvm.git / blobdiff