janwas
9d2acce9d8
- deleted most old libraries/headers in codepit to avoid confusion (they are now in SVN anyway). updated required-libraries-linux.txt accordingly - moved rand() into separate file, out of lib.cpp - removed CGUIScrollBarStyle.cpp to avoid empty-file warning - wxwidgets.h: remove redundant #pragma lib and include wxw PCH - move openal-specific stuff to external_libraries/openal.h - cpu, bsd: macosx is-a bsd, so only test OS_BSD This was SVN commit r5082.
43 lines
943 B
C++
43 lines
943 B
C++
#include "lib/self_test.h"
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#include "lib/rand.h"
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class TestRand : public CxxTest::TestSuite
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{
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public:
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// complain if huge interval or min > max
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void TestParam()
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{
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debug_skip_next_err(ERR::INVALID_PARAM);
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TS_ASSERT_EQUALS(rand(1, 0), 0);
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debug_skip_next_err(ERR::INVALID_PARAM);
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TS_ASSERT_EQUALS(rand(2, ~0u), 0);
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}
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// returned number must be in [min, max)
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void TestReturnedRange()
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{
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for(int i = 0; i < 100; i++)
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{
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uint min = rand(), max = min+rand();
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uint x = rand(min, max);
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TS_ASSERT(min <= x && x < max);
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}
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}
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// make sure both possible values are hit
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void TestTwoValues()
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{
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uint ones = 0, twos = 0;
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for(int i = 0; i < 100; i++)
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{
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uint x = rand(1, 3);
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// paranoia: don't use array (x might not be 1 or 2 - checked below)
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if(x == 1) ones++;
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if(x == 2) twos++;
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}
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TS_ASSERT_EQUALS(ones+twos, 100);
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TS_ASSERT(ones > 10 && twos > 10);
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}
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};
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