Squashed 'src/rocksdb/' content from commit 224932d

git-subtree-dir: src/rocksdb
git-subtree-split: 224932d4d0b561712107d747c662df181c39644d

db/write_batch_test.cc

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+//  Copyright (c) 2013, Facebook, Inc.  All rights reserved.
+//  This source code is licensed under the BSD-style license found in the
+//  LICENSE file in the root directory of this source tree. An additional grant
+//  of patent rights can be found in the PATENTS file in the same directory.
+//
+// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file. See the AUTHORS file for names of contributors.
+
+#include "rocksdb/db.h"
+
+#include <memory>
+#include "db/memtable.h"
+#include "db/column_family.h"
+#include "db/write_batch_internal.h"
+#include "rocksdb/env.h"
+#include "rocksdb/memtablerep.h"
+#include "util/logging.h"
+#include "util/testharness.h"
+
+namespace rocksdb {
+
+static std::string PrintContents(WriteBatch* b) {
+  InternalKeyComparator cmp(BytewiseComparator());
+  auto factory = std::make_shared<SkipListFactory>();
+  Options options;
+  options.memtable_factory = factory;
+  MemTable* mem = new MemTable(cmp, options);
+  mem->Ref();
+  std::string state;
+  ColumnFamilyMemTablesDefault cf_mems_default(mem, &options);
+  Status s = WriteBatchInternal::InsertInto(b, &cf_mems_default);
+  int count = 0;
+  Iterator* iter = mem->NewIterator(ReadOptions());
+  for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
+    ParsedInternalKey ikey;
+    memset((void *)&ikey, 0, sizeof(ikey));
+    ASSERT_TRUE(ParseInternalKey(iter->key(), &ikey));
+    switch (ikey.type) {
+      case kTypeValue:
+        state.append("Put(");
+        state.append(ikey.user_key.ToString());
+        state.append(", ");
+        state.append(iter->value().ToString());
+        state.append(")");
+        count++;
+        break;
+      case kTypeMerge:
+        state.append("Merge(");
+        state.append(ikey.user_key.ToString());
+        state.append(", ");
+        state.append(iter->value().ToString());
+        state.append(")");
+        count++;
+        break;
+      case kTypeDeletion:
+        state.append("Delete(");
+        state.append(ikey.user_key.ToString());
+        state.append(")");
+        count++;
+        break;
+      default:
+        assert(false);
+        break;
+    }
+    state.append("@");
+    state.append(NumberToString(ikey.sequence));
+  }
+  delete iter;
+  if (!s.ok()) {
+    state.append(s.ToString());
+  } else if (count != WriteBatchInternal::Count(b)) {
+    state.append("CountMismatch()");
+  }
+  delete mem->Unref();
+  return state;
+}
+
+class WriteBatchTest { };
+
+TEST(WriteBatchTest, Empty) {
+  WriteBatch batch;
+  ASSERT_EQ("", PrintContents(&batch));
+  ASSERT_EQ(0, WriteBatchInternal::Count(&batch));
+  ASSERT_EQ(0, batch.Count());
+}
+
+TEST(WriteBatchTest, Multiple) {
+  WriteBatch batch;
+  batch.Put(Slice("foo"), Slice("bar"));
+  batch.Delete(Slice("box"));
+  batch.Put(Slice("baz"), Slice("boo"));
+  WriteBatchInternal::SetSequence(&batch, 100);
+  ASSERT_EQ(100U, WriteBatchInternal::Sequence(&batch));
+  ASSERT_EQ(3, WriteBatchInternal::Count(&batch));
+  ASSERT_EQ("Put(baz, boo)@102"
+            "Delete(box)@101"
+            "Put(foo, bar)@100",
+            PrintContents(&batch));
+  ASSERT_EQ(3, batch.Count());
+}
+
+TEST(WriteBatchTest, Corruption) {
+  WriteBatch batch;
+  batch.Put(Slice("foo"), Slice("bar"));
+  batch.Delete(Slice("box"));
+  WriteBatchInternal::SetSequence(&batch, 200);
+  Slice contents = WriteBatchInternal::Contents(&batch);
+  WriteBatchInternal::SetContents(&batch,
+                                  Slice(contents.data(),contents.size()-1));
+  ASSERT_EQ("Put(foo, bar)@200"
+            "Corruption: bad WriteBatch Delete",
+            PrintContents(&batch));
+}
+
+TEST(WriteBatchTest, Append) {
+  WriteBatch b1, b2;
+  WriteBatchInternal::SetSequence(&b1, 200);
+  WriteBatchInternal::SetSequence(&b2, 300);
+  WriteBatchInternal::Append(&b1, &b2);
+  ASSERT_EQ("",
+            PrintContents(&b1));
+  ASSERT_EQ(0, b1.Count());
+  b2.Put("a", "va");
+  WriteBatchInternal::Append(&b1, &b2);
+  ASSERT_EQ("Put(a, va)@200",
+            PrintContents(&b1));
+  ASSERT_EQ(1, b1.Count());
+  b2.Clear();
+  b2.Put("b", "vb");
+  WriteBatchInternal::Append(&b1, &b2);
+  ASSERT_EQ("Put(a, va)@200"
+            "Put(b, vb)@201",
+            PrintContents(&b1));
+  ASSERT_EQ(2, b1.Count());
+  b2.Delete("foo");
+  WriteBatchInternal::Append(&b1, &b2);
+  ASSERT_EQ("Put(a, va)@200"
+            "Put(b, vb)@202"
+            "Put(b, vb)@201"
+            "Delete(foo)@203",
+            PrintContents(&b1));
+  ASSERT_EQ(4, b1.Count());
+}
+
+namespace {
+  struct TestHandler : public WriteBatch::Handler {
+    std::string seen;
+    virtual Status PutCF(uint32_t column_family_id, const Slice& key,
+                       const Slice& value) {
+      if (column_family_id == 0) {
+        seen += "Put(" + key.ToString() + ", " + value.ToString() + ")";
+      } else {
+        seen += "PutCF(" + std::to_string(column_family_id) + ", " +
+                key.ToString() + ", " + value.ToString() + ")";
+      }
+      return Status::OK();
+    }
+    virtual Status MergeCF(uint32_t column_family_id, const Slice& key,
+                         const Slice& value) {
+      if (column_family_id == 0) {
+        seen += "Merge(" + key.ToString() + ", " + value.ToString() + ")";
+      } else {
+        seen += "MergeCF(" + std::to_string(column_family_id) + ", " +
+                key.ToString() + ", " + value.ToString() + ")";
+      }
+      return Status::OK();
+    }
+    virtual void LogData(const Slice& blob) {
+      seen += "LogData(" + blob.ToString() + ")";
+    }
+    virtual Status DeleteCF(uint32_t column_family_id, const Slice& key) {
+      if (column_family_id == 0) {
+        seen += "Delete(" + key.ToString() + ")";
+      } else {
+        seen += "DeleteCF(" + std::to_string(column_family_id) + ", " +
+                key.ToString() + ")";
+      }
+      return Status::OK();
+    }
+  };
+}
+
+TEST(WriteBatchTest, Blob) {
+  WriteBatch batch;
+  batch.Put(Slice("k1"), Slice("v1"));
+  batch.Put(Slice("k2"), Slice("v2"));
+  batch.Put(Slice("k3"), Slice("v3"));
+  batch.PutLogData(Slice("blob1"));
+  batch.Delete(Slice("k2"));
+  batch.PutLogData(Slice("blob2"));
+  batch.Merge(Slice("foo"), Slice("bar"));
+  ASSERT_EQ(5, batch.Count());
+  ASSERT_EQ("Merge(foo, bar)@4"
+            "Put(k1, v1)@0"
+            "Delete(k2)@3"
+            "Put(k2, v2)@1"
+            "Put(k3, v3)@2",
+            PrintContents(&batch));
+
+  TestHandler handler;
+  batch.Iterate(&handler);
+  ASSERT_EQ(
+            "Put(k1, v1)"
+            "Put(k2, v2)"
+            "Put(k3, v3)"
+            "LogData(blob1)"
+            "Delete(k2)"
+            "LogData(blob2)"
+            "Merge(foo, bar)",
+            handler.seen);
+}
+
+TEST(WriteBatchTest, Continue) {
+  WriteBatch batch;
+
+  struct Handler : public TestHandler {
+    int num_seen = 0;
+    virtual Status PutCF(uint32_t column_family_id, const Slice& key,
+                       const Slice& value) {
+      ++num_seen;
+      return TestHandler::PutCF(column_family_id, key, value);
+    }
+    virtual Status MergeCF(uint32_t column_family_id, const Slice& key,
+                         const Slice& value) {
+      ++num_seen;
+      return TestHandler::MergeCF(column_family_id, key, value);
+    }
+    virtual void LogData(const Slice& blob) {
+      ++num_seen;
+      TestHandler::LogData(blob);
+    }
+    virtual Status DeleteCF(uint32_t column_family_id, const Slice& key) {
+      ++num_seen;
+      return TestHandler::DeleteCF(column_family_id, key);
+    }
+    virtual bool Continue() override {
+      return num_seen < 3;
+    }
+  } handler;
+
+  batch.Put(Slice("k1"), Slice("v1"));
+  batch.PutLogData(Slice("blob1"));
+  batch.Delete(Slice("k1"));
+  batch.PutLogData(Slice("blob2"));
+  batch.Merge(Slice("foo"), Slice("bar"));
+  batch.Iterate(&handler);
+  ASSERT_EQ(
+            "Put(k1, v1)"
+            "LogData(blob1)"
+            "Delete(k1)",
+            handler.seen);
+}
+
+TEST(WriteBatchTest, PutGatherSlices) {
+  WriteBatch batch;
+  batch.Put(Slice("foo"), Slice("bar"));
+
+  {
+    // Try a write where the key is one slice but the value is two
+    Slice key_slice("baz");
+    Slice value_slices[2] = { Slice("header"), Slice("payload") };
+    batch.Put(SliceParts(&key_slice, 1),
+              SliceParts(value_slices, 2));
+  }
+
+  {
+    // One where the key is composite but the value is a single slice
+    Slice key_slices[3] = { Slice("key"), Slice("part2"), Slice("part3") };
+    Slice value_slice("value");
+    batch.Put(SliceParts(key_slices, 3),
+              SliceParts(&value_slice, 1));
+  }
+
+  WriteBatchInternal::SetSequence(&batch, 100);
+  ASSERT_EQ("Put(baz, headerpayload)@101"
+            "Put(foo, bar)@100"
+            "Put(keypart2part3, value)@102",
+            PrintContents(&batch));
+  ASSERT_EQ(3, batch.Count());
+}
+
+namespace {
+class ColumnFamilyHandleImplDummy : public ColumnFamilyHandleImpl {
+ public:
+  explicit ColumnFamilyHandleImplDummy(int id)
+      : ColumnFamilyHandleImpl(nullptr, nullptr, nullptr), id_(id) {}
+  uint32_t GetID() const override { return id_; }
+
+ private:
+  uint32_t id_;
+};
+}  // namespace anonymous
+
+TEST(WriteBatchTest, ColumnFamiliesBatchTest) {
+  WriteBatch batch;
+  ColumnFamilyHandleImplDummy zero(0), two(2), three(3), eight(8);
+  batch.Put(&zero, Slice("foo"), Slice("bar"));
+  batch.Put(&two, Slice("twofoo"), Slice("bar2"));
+  batch.Put(&eight, Slice("eightfoo"), Slice("bar8"));
+  batch.Delete(&eight, Slice("eightfoo"));
+  batch.Merge(&three, Slice("threethree"), Slice("3three"));
+  batch.Put(&zero, Slice("foo"), Slice("bar"));
+  batch.Merge(Slice("omom"), Slice("nom"));
+
+  TestHandler handler;
+  batch.Iterate(&handler);
+  ASSERT_EQ(
+      "Put(foo, bar)"
+      "PutCF(2, twofoo, bar2)"
+      "PutCF(8, eightfoo, bar8)"
+      "DeleteCF(8, eightfoo)"
+      "MergeCF(3, threethree, 3three)"
+      "Put(foo, bar)"
+      "Merge(omom, nom)",
+      handler.seen);
+}
+
+}  // namespace rocksdb
+
+int main(int argc, char** argv) {
+  return rocksdb::test::RunAllTests();
+}