зеркало из https://github.com/mozilla/moz-skia.git
90 строки
2.6 KiB
C++
90 строки
2.6 KiB
C++
/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "Test.h"
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#include "SkTDLinkedList.h"
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class ListElement {
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public:
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ListElement(int id) : fID(id) {
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}
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int fID;
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private:
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SK_DEFINE_DLINKEDLIST_INTERFACE(ListElement);
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};
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static void CheckList(const SkTDLinkedList<ListElement>& list,
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skiatest::Reporter* reporter,
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bool empty,
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int numElements,
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bool in0, bool in1, bool in2, bool in3,
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ListElement elements[4]) {
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REPORTER_ASSERT(reporter, empty == list.isEmpty());
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#if SK_DEBUG
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REPORTER_ASSERT(reporter, numElements == list.countEntries());
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REPORTER_ASSERT(reporter, in0 == list.isInList(&elements[0]));
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REPORTER_ASSERT(reporter, in1 == list.isInList(&elements[1]));
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REPORTER_ASSERT(reporter, in2 == list.isInList(&elements[2]));
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REPORTER_ASSERT(reporter, in3 == list.isInList(&elements[3]));
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#endif
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}
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static void TestTDLinkedList(skiatest::Reporter* reporter) {
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SkTDLinkedList<ListElement> list;
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ListElement elements[4] = {
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ListElement(0),
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ListElement(1),
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ListElement(2),
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ListElement(3),
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};
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// list should be empty to start with
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CheckList(list, reporter, true, 0, false, false, false, false, elements);
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list.addToHead(&elements[0]);
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CheckList(list, reporter, false, 1, true, false, false, false, elements);
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list.addToHead(&elements[1]);
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list.addToHead(&elements[2]);
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list.addToHead(&elements[3]);
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CheckList(list, reporter, false, 4, true, true, true, true, elements);
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// test out iterators
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SkTDLinkedList<ListElement>::Iter iter;
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ListElement* cur = iter.init(list, SkTDLinkedList<ListElement>::Iter::kHead_IterStart);
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for (int i = 0; NULL != cur; ++i, cur = iter.next()) {
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REPORTER_ASSERT(reporter, cur->fID == 3-i);
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}
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cur = iter.init(list, SkTDLinkedList<ListElement>::Iter::kTail_IterStart);
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for (int i = 0; NULL != cur; ++i, cur = iter.prev()) {
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REPORTER_ASSERT(reporter, cur->fID == i);
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}
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// remove middle, frontmost then backmost
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list.remove(&elements[1]);
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list.remove(&elements[3]);
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list.remove(&elements[0]);
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CheckList(list, reporter, false, 1, false, false, true, false, elements);
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// remove last element
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list.remove(&elements[2]);
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// list should be empty again
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CheckList(list, reporter, true, 0, false, false, false, false, elements);
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}
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#include "TestClassDef.h"
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DEFINE_TESTCLASS("TDLinkedList", TestTDLinkedListClass, TestTDLinkedList)
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