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// Copyright (c) 2017, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include <algorithm>
#include <string>
#include "breakpad_googletest_includes.h"
#include "common/long_string_dictionary.h"
namespace google_breakpad {
using std::string;
TEST(LongStringDictionary, LongStringDictionary) {
// Make a new dictionary
LongStringDictionary dict;
// Set three distinct values on three keys
dict.SetKeyValue("key1", "value1");
dict.SetKeyValue("key2", "value2");
dict.SetKeyValue("key3", "value3");
EXPECT_EQ("value1", dict.GetValueForKey("key1"));
EXPECT_EQ("value2", dict.GetValueForKey("key2"));
EXPECT_EQ("value3", dict.GetValueForKey("key3"));
EXPECT_EQ(3u, dict.GetCount());
// try an unknown key
EXPECT_EQ("", dict.GetValueForKey("key4"));
// Remove a key
dict.RemoveKey("key3");
// Now make sure it's not there anymore
EXPECT_EQ("", dict.GetValueForKey("key3"));
// Remove by setting value to NULL
dict.SetKeyValue("key2", NULL);
// Now make sure it's not there anymore
EXPECT_EQ("", dict.GetValueForKey("key2"));
}
// Add a bunch of values to the dictionary, remove some entries in the middle,
// and then add more.
TEST(LongStringDictionary, Iterator) {
LongStringDictionary* dict = new LongStringDictionary();
ASSERT_TRUE(dict);
char key[LongStringDictionary::key_size];
char value[LongStringDictionary::value_size];
const int kDictionaryCapacity = LongStringDictionary::num_entries;
const int kPartitionIndex = kDictionaryCapacity - 5;
// We assume at least this size in the tests below
ASSERT_GE(kDictionaryCapacity, 64);
// We'll keep track of the number of key/value pairs we think should
// be in the dictionary
int expectedDictionarySize = 0;
// Set a bunch of key/value pairs like key0/value0, key1/value1, ...
for (int i = 0; i < kPartitionIndex; ++i) {
sprintf(key, "key%d", i);
sprintf(value, "value%d", i);
dict->SetKeyValue(key, value);
}
expectedDictionarySize = kPartitionIndex;
// set a couple of the keys twice (with the same value) - should be nop
dict->SetKeyValue("key2", "value2");
dict->SetKeyValue("key4", "value4");
dict->SetKeyValue("key15", "value15");
// Remove some random elements in the middle
dict->RemoveKey("key7");
dict->RemoveKey("key18");
dict->RemoveKey("key23");
dict->RemoveKey("key31");
expectedDictionarySize -= 4; // we just removed four key/value pairs
// Set some more key/value pairs like key59/value59, key60/value60, ...
for (int i = kPartitionIndex; i < kDictionaryCapacity; ++i) {
sprintf(key, "key%d", i);
sprintf(value, "value%d", i);
dict->SetKeyValue(key, value);
}
expectedDictionarySize += kDictionaryCapacity - kPartitionIndex;
// Now create an iterator on the dictionary
SimpleStringDictionary::Iterator iter(*dict);
// We then verify that it iterates through exactly the number of
// key/value pairs we expect, and that they match one-for-one with what we
// would expect. The ordering of the iteration does not matter...
// used to keep track of number of occurrences found for key/value pairs
int count[kDictionaryCapacity];
memset(count, 0, sizeof(count));
int totalCount = 0;
const SimpleStringDictionary::Entry* entry;
while ((entry = iter.Next())) {
totalCount++;
// Extract keyNumber from a string of the form key<keyNumber>
int keyNumber;
sscanf(entry->key, "key%d", &keyNumber);
// Extract valueNumber from a string of the form value<valueNumber>
int valueNumber;
sscanf(entry->value, "value%d", &valueNumber);
// The value number should equal the key number since that's how we set them
EXPECT_EQ(keyNumber, valueNumber);
// Key and value numbers should be in proper range:
// 0 <= keyNumber < kDictionaryCapacity
bool isKeyInGoodRange = (keyNumber >= 0 && keyNumber < kDictionaryCapacity);
bool isValueInGoodRange =
(valueNumber >= 0 && valueNumber < kDictionaryCapacity);
EXPECT_TRUE(isKeyInGoodRange);
EXPECT_TRUE(isValueInGoodRange);
if (isKeyInGoodRange && isValueInGoodRange) {
++count[keyNumber];
}
}
// Make sure each of the key/value pairs showed up exactly one time, except
// for the ones which we removed.
for (size_t i = 0; i < kDictionaryCapacity; ++i) {
// Skip over key7, key18, key23, and key31, since we removed them
if (!(i == 7 || i == 18 || i == 23 || i == 31)) {
EXPECT_EQ(count[i], 1);
}
}
// Make sure the number of iterations matches the expected dictionary size.
EXPECT_EQ(totalCount, expectedDictionarySize);
}
TEST(LongStringDictionary, AddRemove) {
LongStringDictionary dict;
dict.SetKeyValue("rob", "ert");
dict.SetKeyValue("mike", "pink");
dict.SetKeyValue("mark", "allays");
EXPECT_EQ(3u, dict.GetCount());
EXPECT_EQ("ert", dict.GetValueForKey("rob"));
EXPECT_EQ("pink", dict.GetValueForKey("mike"));
EXPECT_EQ("allays", dict.GetValueForKey("mark"));
dict.RemoveKey("mike");
EXPECT_EQ(2u, dict.GetCount());
EXPECT_EQ("", dict.GetValueForKey("mike"));
dict.SetKeyValue("mark", "mal");
EXPECT_EQ(2u, dict.GetCount());
EXPECT_EQ("mal", dict.GetValueForKey("mark"));
dict.RemoveKey("mark");
EXPECT_EQ(1u, dict.GetCount());
EXPECT_EQ("", dict.GetValueForKey("mark"));
}
TEST(LongStringDictionary, AddRemoveLongValue) {
LongStringDictionary dict;
string long_value = string(256, 'x');
dict.SetKeyValue("rob", long_value.c_str());
EXPECT_EQ(2u, dict.GetCount());
string long_value_part_1 = string(255, 'x');
EXPECT_EQ(long_value_part_1, dict.GetValueForKey("rob__1"));
EXPECT_EQ("x", dict.GetValueForKey("rob__2"));
EXPECT_EQ(long_value, dict.GetValueForKey("rob"));
dict.RemoveKey("rob");
EXPECT_EQ(0u, dict.GetCount());
}
TEST(LongStringDictionary, AddRemoveSuperLongValue) {
LongStringDictionary dict;
string long_value = string(255 * 10, 'x');
dict.SetKeyValue("rob", long_value.c_str());
EXPECT_EQ(10u, dict.GetCount());
string long_value_part = string(255, 'x');
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__1"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__2"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__3"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__4"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__5"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__6"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__7"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__8"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__9"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__10"));
EXPECT_EQ(10u, dict.GetCount());
EXPECT_EQ(long_value, dict.GetValueForKey("rob"));
dict.RemoveKey("rob");
EXPECT_EQ(0u, dict.GetCount());
}
TEST(LongStringDictionary, TruncateSuperLongValue) {
LongStringDictionary dict;
string long_value = string(255 * 11, 'x');
dict.SetKeyValue("rob", long_value.c_str());
EXPECT_EQ(10u, dict.GetCount());
string long_value_part = string(255, 'x');
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__1"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__2"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__3"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__4"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__5"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__6"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__7"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__8"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__9"));
EXPECT_EQ(long_value_part, dict.GetValueForKey("rob__10"));
EXPECT_EQ(10u, dict.GetCount());
string expected_long_value = string(255 * 10, 'x');
EXPECT_EQ(expected_long_value, dict.GetValueForKey("rob"));
dict.RemoveKey("rob");
EXPECT_EQ(0u, dict.GetCount());
}
TEST(LongStringDictionary, OverrideLongValue) {
LongStringDictionary dict;
string long_value = string(255 * 10, 'x');
dict.SetKeyValue("rob", long_value.c_str());
EXPECT_EQ(10u, dict.GetCount());
EXPECT_EQ(long_value, dict.GetValueForKey("rob"));
dict.SetKeyValue("rob", "short_value");
EXPECT_EQ(1u, dict.GetCount());
EXPECT_EQ("short_value", dict.GetValueForKey("rob"));
}
TEST(LongStringDictionary, OverrideShortValue) {
LongStringDictionary dict;
dict.SetKeyValue("rob", "short_value");
EXPECT_EQ(1u, dict.GetCount());
EXPECT_EQ("short_value", dict.GetValueForKey("rob"));
string long_value = string(255 * 10, 'x');
dict.SetKeyValue("rob", long_value.c_str());
EXPECT_EQ(10u, dict.GetCount());
EXPECT_EQ(long_value, dict.GetValueForKey("rob"));
}
} // namespace google_breakpad