external/bsd/lutok/dist/stack_cleaner_test.cpp

   1 // Copyright 2011 Google Inc.
   2 // All rights reserved.
   3 //
   4 // Redistribution and use in source and binary forms, with or without
   5 // modification, are permitted provided that the following conditions are
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   9 //   notice, this list of conditions and the following disclaimer.
  10 // * Redistributions in binary form must reproduce the above copyright
  11 //   notice, this list of conditions and the following disclaimer in the
  12 //   documentation and/or other materials provided with the distribution.
  13 // * Neither the name of Google Inc. nor the names of its contributors
  14 //   may be used to endorse or promote products derived from this software
  15 //   without specific prior written permission.
  16 //
  17 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  18 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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  20 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  21 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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  27 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28
  29 #include "stack_cleaner.hpp"
  30
  31 #include <atf-c++.hpp>
  32
  33
  34 ATF_TEST_CASE_WITHOUT_HEAD(empty);
  35 ATF_TEST_CASE_BODY(empty)
  36 {
  37     lutok::state state;
  38     {
  39         lutok::stack_cleaner cleaner(state);
  40         ATF_REQUIRE_EQ(0, state.get_top());
  41     }
  42     ATF_REQUIRE_EQ(0, state.get_top());
  43 }
  44
  45
  46 ATF_TEST_CASE_WITHOUT_HEAD(some);
  47 ATF_TEST_CASE_BODY(some)
  48 {
  49     lutok::state state;
  50     {
  51         lutok::stack_cleaner cleaner(state);
  52         state.push_integer(15);
  53         ATF_REQUIRE_EQ(1, state.get_top());
  54         state.push_integer(30);
  55         ATF_REQUIRE_EQ(2, state.get_top());
  56     }
  57     ATF_REQUIRE_EQ(0, state.get_top());
  58 }
  59
  60
  61 ATF_TEST_CASE_WITHOUT_HEAD(nested);
  62 ATF_TEST_CASE_BODY(nested)
  63 {
  64     lutok::state state;
  65     {
  66         lutok::stack_cleaner cleaner1(state);
  67         state.push_integer(10);
  68         ATF_REQUIRE_EQ(1, state.get_top());
  69         ATF_REQUIRE_EQ(10, state.to_integer());
  70         {
  71             lutok::stack_cleaner cleaner2(state);
  72             state.push_integer(20);
  73             ATF_REQUIRE_EQ(2, state.get_top());
  74             ATF_REQUIRE_EQ(20, state.to_integer(-1));
  75             ATF_REQUIRE_EQ(10, state.to_integer(-2));
  76         }
  77         ATF_REQUIRE_EQ(1, state.get_top());
  78         ATF_REQUIRE_EQ(10, state.to_integer());
  79     }
  80     ATF_REQUIRE_EQ(0, state.get_top());
  81 }
  82
  83
  84 ATF_TEST_CASE_WITHOUT_HEAD(forget);
  85 ATF_TEST_CASE_BODY(forget)
  86 {
  87     lutok::state state;
  88     {
  89         lutok::stack_cleaner cleaner(state);
  90         state.push_integer(15);
  91         state.push_integer(30);
  92         cleaner.forget();
  93         state.push_integer(60);
  94         ATF_REQUIRE_EQ(3, state.get_top());
  95     }
  96     ATF_REQUIRE_EQ(2, state.get_top());
  97     ATF_REQUIRE_EQ(30, state.to_integer());
  98     state.pop(2);
  99 }
 100
 101
 102 ATF_INIT_TEST_CASES(tcs)
 103 {
 104     ATF_ADD_TEST_CASE(tcs, empty);
 105     ATF_ADD_TEST_CASE(tcs, some);
 106     ATF_ADD_TEST_CASE(tcs, nested);
 107     ATF_ADD_TEST_CASE(tcs, forget);
 108 }