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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/test_kit.h>
#include <vespa/vespalib/util/arrayqueue.hpp>
using namespace vespalib;
// 'instrumented' int
struct Int
{
static int ctorCnt;
static int aliveCnt;
static int dtorCnt;
static int ddCnt;
bool alive;
int value;
Int(int val) : alive(true), value(val)
{
++ctorCnt;
++aliveCnt;
}
Int(const Int &val) : alive(true), value(val.value)
{
++ctorCnt;
++aliveCnt;
}
Int &operator=(const Int &rhs) = default;
operator int() const { return value; }
~Int() {
++dtorCnt;
if (alive) {
--aliveCnt;
alive = false;
} else {
++ddCnt;
}
}
};
int Int::ctorCnt = 0;
int Int::aliveCnt = 0;
int Int::dtorCnt = 0;
int Int::ddCnt = 0;
struct FunkyItem {
int extra;
std::unique_ptr<Int> mine;
FunkyItem(const FunkyItem &) = delete;
FunkyItem &operator=(const FunkyItem &) = delete;
FunkyItem(int e, int m) : extra(e), mine(new Int(m)) {}
FunkyItem(FunkyItem &&rhs) : extra(rhs.extra), mine(std::move(rhs.mine)) {}
};
struct Copy {
using Q = ArrayQueue<Int>;
static void push(Q &q, int v) { Int value(v); q.push(value); }
static void pushFront(Q &q, int v) { Int value(v); q.pushFront(value); }
static void set(Q &q, int idx, int val) { q.access(idx) = val; }
};
struct Move {
using Q = ArrayQueue<std::unique_ptr<Int> >;
static void push(Q &q, int v) { q.push(std::unique_ptr<Int>(new Int(v))); }
static void pushFront(Q &q, int v) { q.pushFront(std::unique_ptr<Int>(new Int(v))); }
static void set(Q &q, int idx, int val) { *q.access(idx) = val; }
};
struct Emplace {
using Q = ArrayQueue<FunkyItem>;
static void push(Q &q, int v) { q.emplace(v, v); }
static void pushFront(Q &q, int v) { q.emplaceFront(v, v); }
static void set(Q &q, int idx, int val) {
q.access(idx).extra = val;
*q.access(idx).mine = val;
}
};
void checkStatics(int alive) {
EXPECT_EQUAL(Int::ctorCnt, alive + Int::dtorCnt);
EXPECT_EQUAL(Int::aliveCnt, alive);
EXPECT_EQUAL(Int::ddCnt, 0);
Int::ctorCnt = alive;
Int::aliveCnt = alive;
Int::dtorCnt = 0;
Int::ddCnt = 0;
}
template<typename T> int unwrap(const T &);
template<> int unwrap<Int>(const Int &x) { return x; }
template<> int unwrap<std::unique_ptr<Int> >(const std::unique_ptr<Int> &x) { return *x; }
template<> int unwrap<FunkyItem>(const FunkyItem &x) {
EXPECT_EQUAL(x.extra, *(x.mine));
return unwrap(x.mine);
}
template <typename T> void checkInts(T &q, std::initializer_list<int> il) {
size_t idx = 0;
EXPECT_EQUAL(il.size() == 0, q.empty());
for (auto itr = il.begin(); itr != il.end(); ++itr, ++idx) {
int val = *itr;
EXPECT_EQUAL(val, unwrap(q.peek(idx)));
EXPECT_EQUAL(val, unwrap(q.access(idx)));
if (idx == 0) {
EXPECT_EQUAL(val, unwrap(q.front()));
}
if (idx == (il.size() - 1)) {
EXPECT_EQUAL(val, unwrap(q.back()));
}
}
}
template <typename T> void testBasic() {
typename T::Q q;
TEST_DO(checkStatics(0));
TEST_DO(checkInts(q, {}));
T::push(q, 1);
TEST_DO(checkStatics(1));
TEST_DO(checkInts(q, { 1 }));
T::push(q, 2);
TEST_DO(checkStatics(2));
TEST_DO(checkInts(q, { 1, 2 }));
T::push(q, 3);
TEST_DO(checkStatics(3));
TEST_DO(checkInts(q, { 1, 2, 3 }));
q.clear();
TEST_DO(checkStatics(0));
TEST_DO(checkInts(q, {}));
}
template <typename T> void testNormal() {
typename T::Q q;
for (uint32_t i = 0; i < 100; ++i) {
TEST_DO(checkStatics(0));
TEST_DO(checkInts(q, {}));
T::push(q, 1);
TEST_DO(checkStatics(1));
TEST_DO(checkInts(q, { 1 }));
T::push(q, 2);
TEST_DO(checkStatics(2));
TEST_DO(checkInts(q, { 1, 2 }));
T::push(q, 3);
TEST_DO(checkStatics(3));
TEST_DO(checkInts(q, { 1, 2, 3 }));
q.pop();
TEST_DO(checkStatics(2));
TEST_DO(checkInts(q, { 2, 3 }));
q.pop();
TEST_DO(checkStatics(1));
TEST_DO(checkInts(q, { 3 }));
q.pop();
TEST_DO(checkStatics(0));
TEST_DO(checkInts(q, {}));
}
T::push(q, 1);
T::push(q, 2);
T::push(q, 3);
TEST_DO(checkStatics(3));
TEST_DO(checkInts(q, { 1, 2, 3 }));
q.clear();
TEST_DO(checkStatics(0));
TEST_DO(checkInts(q, {}));
}
template <typename T> void testReverse() {
typename T::Q q;
for (uint32_t i = 0; i < 100; ++i) {
TEST_DO(checkStatics(0));
TEST_DO(checkInts(q, {}));
T::pushFront(q, 1);
TEST_DO(checkStatics(1));
TEST_DO(checkInts(q, { 1 }));
T::pushFront(q, 2);
TEST_DO(checkStatics(2));
TEST_DO(checkInts(q, { 2, 1 }));
T::pushFront(q, 3);
TEST_DO(checkStatics(3));
TEST_DO(checkInts(q, { 3, 2, 1 }));
q.popBack();
TEST_DO(checkStatics(2));
TEST_DO(checkInts(q, { 3, 2 }));
q.popBack();
TEST_DO(checkStatics(1));
TEST_DO(checkInts(q, { 3 }));
q.popBack();
TEST_DO(checkStatics(0));
TEST_DO(checkInts(q, {}));
}
T::pushFront(q, 1);
T::pushFront(q, 2);
T::pushFront(q, 3);
TEST_DO(checkStatics(3));
TEST_DO(checkInts(q, { 3, 2, 1 }));
q.clear();
TEST_DO(checkStatics(0));
TEST_DO(checkInts(q, {}));
}
template <typename T> void subTestCopy() { TEST_ERROR("undefined"); }
template <> void subTestCopy<Emplace>() {}
template <> void subTestCopy<Move>() {}
template <> void subTestCopy<Copy>() {
using T = Copy;
{ // copy construct queue
T::Q q1;
T::push(q1, 1);
T::push(q1, 2);
T::push(q1, 3);
T::Q q2(q1);
TEST_DO(checkStatics(6));
TEST_DO(checkInts(q1, { 1, 2, 3 }));
TEST_DO(checkInts(q2, { 1, 2, 3 }));
T::push(q1, 4);
T::push(q1, 5);
T::push(q2, 40);
T::push(q2, 50);
TEST_DO(checkStatics(10));
TEST_DO(checkInts(q1, { 1, 2, 3, 4, 5 }));
TEST_DO(checkInts(q2, { 1, 2, 3, 40, 50 }));
}
{ // copy assign queue
T::Q q1;
T::Q q2;
T::push(q1, 1);
T::push(q1, 2);
T::push(q1, 3);
TEST_DO(checkStatics(3));
TEST_DO(checkInts(q1, { 1, 2, 3 }));
TEST_DO(checkInts(q2, {}));
q2 = q1;
TEST_DO(checkStatics(6));
TEST_DO(checkInts(q1, { 1, 2, 3 }));
TEST_DO(checkInts(q2, { 1, 2, 3 }));
T::push(q1, 4);
T::push(q1, 5);
T::push(q2, 40);
T::push(q2, 50);
TEST_DO(checkStatics(10));
TEST_DO(checkInts(q1, { 1, 2, 3, 4, 5 }));
TEST_DO(checkInts(q2, { 1, 2, 3, 40, 50 }));
}
}
template <typename T> void testEdit() {
{ // modify value in queue
typename T::Q q;
T::push(q, 5);
TEST_DO(checkStatics(1));
TEST_DO(checkInts(q, { 5 }));
T::set(q, 0, 10);
TEST_DO(checkStatics(1));
TEST_DO(checkInts(q, { 10 }));
}
subTestCopy<T>(); // only test copy if elements of T::Q are copyable
{ // move construct queue
typename T::Q q1;
T::push(q1, 1);
T::push(q1, 2);
T::push(q1, 3);
typename T::Q q2(std::move(q1));
TEST_DO(checkStatics(3));
TEST_DO(checkInts(q1, {}));
TEST_DO(checkInts(q2, { 1, 2, 3 }));
T::push(q1, 4);
T::push(q1, 5);
T::push(q2, 40);
T::push(q2, 50);
TEST_DO(checkStatics(7));
TEST_DO(checkInts(q1, { 4, 5 }));
TEST_DO(checkInts(q2, { 1, 2, 3, 40, 50 }));
}
{ // move assign queue
typename T::Q q1;
typename T::Q q2;
T::push(q1, 1);
T::push(q1, 2);
T::push(q1, 3);
TEST_DO(checkStatics(3));
TEST_DO(checkInts(q1, { 1, 2, 3 }));
TEST_DO(checkInts(q2, {}));
q2 = std::move(q1);
TEST_DO(checkStatics(3));
TEST_DO(checkInts(q1, {}));
TEST_DO(checkInts(q2, { 1, 2, 3 }));
T::push(q1, 4);
T::push(q1, 5);
T::push(q2, 40);
T::push(q2, 50);
TEST_DO(checkStatics(7));
TEST_DO(checkInts(q1, { 4, 5 }));
TEST_DO(checkInts(q2, { 1, 2, 3, 40, 50 }));
}
{ // swap queues
typename T::Q q1;
typename T::Q q2;
T::push(q1, 1);
T::push(q1, 2);
T::push(q1, 3);
T::push(q2, 10);
T::push(q2, 20);
T::push(q2, 30);
TEST_DO(checkStatics(6));
TEST_DO(checkInts(q1, { 1, 2, 3 }));
TEST_DO(checkInts(q2, { 10, 20, 30 }));
q1.swap(q2);
TEST_DO(checkStatics(6));
TEST_DO(checkInts(q1, { 10, 20, 30 }));
TEST_DO(checkInts(q2, { 1, 2, 3 }));
}
}
template <typename T> void testCapacity() {
{ // start with zero capacity
typename T::Q q;
EXPECT_EQUAL(q.capacity(), 0u);
q.reserve(1);
EXPECT_EQUAL(q.capacity(), 16u);
q.reserve(16);
EXPECT_EQUAL(q.capacity(), 16u);
q.reserve(17);
EXPECT_EQUAL(q.capacity(), 32u);
q.reserve(33);
EXPECT_EQUAL(q.capacity(), 64u);
q.reserve(500);
EXPECT_EQUAL(q.capacity(), 512u);
}
{ // start with given capacity < 16
typename T::Q q(10);
EXPECT_EQUAL(q.capacity(), 10u);
q.reserve(10);
EXPECT_EQUAL(q.capacity(), 10u);
q.reserve(11);
EXPECT_EQUAL(q.capacity(), 16u);
q.reserve(17);
EXPECT_EQUAL(q.capacity(), 32u);
q.reserve(33);
EXPECT_EQUAL(q.capacity(), 64u);
q.reserve(500);
EXPECT_EQUAL(q.capacity(), 512u);
}
{ // start with given capacity > 16
typename T::Q q(20);
EXPECT_EQUAL(q.capacity(), 20u);
q.reserve(20);
EXPECT_EQUAL(q.capacity(), 20u);
q.reserve(21);
EXPECT_EQUAL(q.capacity(), 40u);
q.reserve(41);
EXPECT_EQUAL(q.capacity(), 80u);
q.reserve(81);
EXPECT_EQUAL(q.capacity(), 160u);
q.reserve(500);
EXPECT_EQUAL(q.capacity(), 640u);
}
}
template <typename T> void testExpansion() {
typename T::Q q(32);
T::push(q, 111);
T::push(q, 222);
T::push(q, 333);
q.pop();
q.pop();
q.pop();
for (int i = 0; i < 200; ++i) {
T::push(q, i);
}
for (int i = 0; i < 200; ++i) {
EXPECT_EQUAL(unwrap(q.peek(i)), i);
}
}
template <typename T> void dispatchTypedTests() {
TEST_DO(testBasic<T>());
TEST_DO(testNormal<T>());
TEST_DO(testReverse<T>());
TEST_DO(testEdit<T>());
TEST_DO(testCapacity<T>());
TEST_DO(testExpansion<T>());
}
TEST("test with copyable items") { dispatchTypedTests<Copy>(); }
TEST("test with movable items") { dispatchTypedTests<Move>(); }
TEST("test with emplaced items") { dispatchTypedTests<Emplace>(); }
TEST_MAIN() { TEST_RUN_ALL(); }
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