compat/testPreCompiler.cc

   1 #define SQUID_UNIT_TEST 1
   2 #include "squid.h"
   3
   4 #include <cassert>
   5
   6 #include "testPreCompiler.h"
   7
   8 CPPUNIT_TEST_SUITE_REGISTRATION( testPreCompiler );
   9
  10 /**
  11  * Test several ways of defining pre-compiler directives.
  12  * Squid-3 uses #if FOO syntax for precompiler directives.
  13  * These tests ensure that the inputs will work as expected.
  14  */
  15 void
  16 testPreCompiler::testIfDef()
  17 {
  18     /* Defined to explicit value 1 should be true */
  19 #define ONE_FOO 1
  20 #if ONE_FOO
  21     bool oneTrue = true;
  22 #else
  23     bool oneTrue = false;
  24 #endif
  25 #if !ONE_FOO
  26     bool oneFalse = true;
  27 #else
  28     bool oneFalse = false;
  29 #endif
  30     CPPUNIT_ASSERT(oneTrue);
  31     CPPUNIT_ASSERT(!oneFalse);
  32
  33     /* Defined to explicit value 0 should be false */
  34 #define ZERO_FOO 0
  35 #if ZERO_FOO
  36     bool zeroTrue = true;
  37 #else
  38     bool zeroTrue = false;
  39 #endif
  40 #if !ZERO_FOO
  41     bool zeroFalse = true;
  42 #else
  43     bool zeroFalse = false;
  44 #endif
  45     CPPUNIT_ASSERT(zeroFalse);
  46     CPPUNIT_ASSERT(!zeroTrue);
  47
  48     /* Defined to exist without a value generates pre-compiler errors when used in #if . */
  49
  50     /* Not Defined to exist at all == false */
  51 #undef UNDEFINED_FOO
  52 #if UNDEFINED_FOO
  53     bool undefinedTrue = true;
  54 #else
  55     bool undefinedTrue = false;
  56 #endif
  57 #if !UNDEFINED_FOO
  58     bool undefinedFalse = true;
  59 #else
  60     bool undefinedFalse = false;
  61 #endif
  62     CPPUNIT_ASSERT(undefinedFalse);
  63     CPPUNIT_ASSERT(!undefinedTrue);
  64 }
  65
  66 /**
  67  * Test several ways of defining pre-compiler directives.
  68  * Squid-3 uses #if FOO syntax for precompiler directives.
  69  * These tests ensure that the inputs will work as expected
  70  * when undefined macros are used in && conditions
  71  */
  72 void
  73 testPreCompiler::testIfDefAnd()
  74 {
  75     /* Not Defined to exist at all == false - when used in a compound if */
  76 #undef UNDEFINED_FOO
  77 #define ONE_FOO 1
  78
  79 #if UNDEFINED_FOO && ONE_FOO
  80     bool undefinedAndTrueA = true;
  81 #else
  82     bool undefinedAndTrueA = false;
  83 #endif
  84 #if !UNDEFINED_FOO && ONE_FOO
  85     bool undefinedAndFalseA = true;
  86 #else
  87     bool undefinedAndFalseA = false;
  88 #endif
  89     CPPUNIT_ASSERT(undefinedAndFalseA);
  90     CPPUNIT_ASSERT(!undefinedAndTrueA);
  91
  92 #if ONE_FOO && UNDEFINED_FOO
  93     bool undefinedAndTrueB = true;
  94 #else
  95     bool undefinedAndTrueB = false;
  96 #endif
  97 #if ONE_FOO && !UNDEFINED_FOO
  98     bool undefinedAndFalseB = true;
  99 #else
 100     bool undefinedAndFalseB = false;
 101 #endif
 102     CPPUNIT_ASSERT(undefinedAndFalseB);
 103     CPPUNIT_ASSERT(!undefinedAndTrueB);
 104 }
 105
 106 /**
 107  * Test several ways of defining pre-compiler directives.
 108  * Squid-3 uses #if FOO syntax for precompiler directives.
 109  * These tests ensure that the inputs will work as expected
 110  * when undefined macros are used in || conditions
 111  */
 112 void
 113 testPreCompiler::testIfDefOr()
 114 {
 115     /* Not Defined to exist at all == false - when used in a compound if */
 116 #undef UNDEFINED_FOO
 117 #define ZERO_FOO 0
 118
 119 #if UNDEFINED_FOO || ZERO_FOO
 120     bool undefinedOrTrueA = true;
 121 #else
 122     bool undefinedOrTrueA = false;
 123 #endif
 124 #if !UNDEFINED_FOO || ZERO_FOO
 125     bool undefinedOrFalseA = true;
 126 #else
 127     bool undefinedOrFalseA = false;
 128 #endif
 129     CPPUNIT_ASSERT(undefinedOrFalseA);
 130     CPPUNIT_ASSERT(!undefinedOrTrueA);
 131
 132 #if ZERO_FOO || UNDEFINED_FOO
 133     bool undefinedOrTrueB = true;
 134 #else
 135     bool undefinedOrTrueB = false;
 136 #endif
 137 #if ZERO_FOO || !UNDEFINED_FOO
 138     bool undefinedOrFalseB = true;
 139 #else
 140     bool undefinedOrFalseB = false;
 141 #endif
 142     CPPUNIT_ASSERT(undefinedOrFalseB);
 143     CPPUNIT_ASSERT(!undefinedOrTrueB);
 144
 145 }
 146