compat/testPreCompiler.cc

   1 #define SQUID_UNIT_TEST 1
   2 #include "config.h"
   3
   4 #if HAVE_ASSERT_H
   5 #include <assert.h>
   6 #endif
   7
   8 #include "testPreCompiler.h"
   9
  10 CPPUNIT_TEST_SUITE_REGISTRATION( testPreCompiler );
  11
  12 /**
  13  * Test several ways of defining pre-compiler directives.
  14  * Squid-3 uses #if FOO syntax for precompiler directives.
  15  * These tests ensure that the inputs will work as expected.
  16  */
  17 void
  18 testPreCompiler::testIfDef()
  19 {
  20     /* Defined to explicit value 1 should be true */
  21 #define ONE_FOO 1
  22 #if ONE_FOO
  23     bool oneTrue = true;
  24 #else
  25     bool oneTrue = false;
  26 #endif
  27 #if !ONE_FOO
  28     bool oneFalse = true;
  29 #else
  30     bool oneFalse = false;
  31 #endif
  32     CPPUNIT_ASSERT(oneTrue);
  33     CPPUNIT_ASSERT(!oneFalse);
  34
  35     /* Defined to explicit value 0 should be false */
  36 #define ZERO_FOO 0
  37 #if ZERO_FOO
  38     bool zeroTrue = true;
  39 #else
  40     bool zeroTrue = false;
  41 #endif
  42 #if !ZERO_FOO
  43     bool zeroFalse = true;
  44 #else
  45     bool zeroFalse = false;
  46 #endif
  47     CPPUNIT_ASSERT(zeroFalse);
  48     CPPUNIT_ASSERT(!zeroTrue);
  49
  50     /* Defined to exist without a value generates pre-compiler errors when used in #if . */
  51
  52     /* Not Defined to exist at all == false */
  53 #undef UNDEFINED_FOO
  54 #if UNDEFINED_FOO
  55     bool undefinedTrue = true;
  56 #else
  57     bool undefinedTrue = false;
  58 #endif
  59 #if !UNDEFINED_FOO
  60     bool undefinedFalse = true;
  61 #else
  62     bool undefinedFalse = false;
  63 #endif
  64     CPPUNIT_ASSERT(undefinedFalse);
  65     CPPUNIT_ASSERT(!undefinedTrue);
  66 }