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      1 // Copyright 2010 the V8 project authors. All rights reserved.
      2 // Redistribution and use in source and binary forms, with or without
      3 // modification, are permitted provided that the following conditions are
      4 // met:
      5 //
      6 //     * Redistributions of source code must retain the above copyright
      7 //       notice, this list of conditions and the following disclaimer.
      8 //     * Redistributions in binary form must reproduce the above
      9 //       copyright notice, this list of conditions and the following
     10 //       disclaimer in the documentation and/or other materials provided
     11 //       with the distribution.
     12 //     * Neither the name of Google Inc. nor the names of its
     13 //       contributors may be used to endorse or promote products derived
     14 //       from this software without specific prior written permission.
     15 //
     16 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     17 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     18 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     19 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     20 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     21 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     22 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     23 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     24 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     25 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     26 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     27 //
     28 // Tests of the unbound queue.
     29 
     30 #include "v8.h"
     31 #include "unbound-queue-inl.h"
     32 #include "cctest.h"
     33 
     34 using i::UnboundQueue;
     35 
     36 
     37 TEST(SingleRecord) {
     38   typedef int Record;
     39   UnboundQueue<Record> cq;
     40   CHECK(cq.IsEmpty());
     41   cq.Enqueue(1);
     42   CHECK(!cq.IsEmpty());
     43   Record rec = 0;
     44   cq.Dequeue(&rec);
     45   CHECK_EQ(1, rec);
     46   CHECK(cq.IsEmpty());
     47 }
     48 
     49 
     50 TEST(MultipleRecords) {
     51   typedef int Record;
     52   UnboundQueue<Record> cq;
     53   CHECK(cq.IsEmpty());
     54   cq.Enqueue(1);
     55   CHECK(!cq.IsEmpty());
     56   for (int i = 2; i <= 5; ++i) {
     57     cq.Enqueue(i);
     58     CHECK(!cq.IsEmpty());
     59   }
     60   Record rec = 0;
     61   for (int i = 1; i <= 4; ++i) {
     62     CHECK(!cq.IsEmpty());
     63     cq.Dequeue(&rec);
     64     CHECK_EQ(i, rec);
     65   }
     66   for (int i = 6; i <= 12; ++i) {
     67     cq.Enqueue(i);
     68     CHECK(!cq.IsEmpty());
     69   }
     70   for (int i = 5; i <= 12; ++i) {
     71     CHECK(!cq.IsEmpty());
     72     cq.Dequeue(&rec);
     73     CHECK_EQ(i, rec);
     74   }
     75   CHECK(cq.IsEmpty());
     76 }
     77