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55 lines
1.7 KiB
C
55 lines
1.7 KiB
C
#include <string.h>
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#include "unittest.h"
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#define SourceStringSize 257 // test correct page passing (>256)
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static char SourceString[SourceStringSize+1]; // +1 room for terminating null
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static char DestinationString[2*SourceStringSize+1]; // will contain two times the source buffer
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TEST
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{
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unsigned i,j;
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char* p;
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for (i=0; i < SourceStringSize; ++i)
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SourceString[i] = (i%128)+1;
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SourceString[i] = 0;
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ASSERT_AreEqual(SourceStringSize, strlen(SourceString), "%u", "Source string initialization or 'strlen()' problem!");
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/* Ensure empty destination string */
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DestinationString[0] = 0;
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ASSERT_AreEqual(0, strlen(DestinationString), "%u", "Destination string initialization or 'strlen()' problem!");
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/* Test concatenation to empty buffer */
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strcat(DestinationString, SourceString);
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ASSERT_AreEqual(SourceStringSize, strlen(DestinationString), "%u", "Unexpected string length while string concatenation to empty buffer!");
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/* Test concatenation to non empty buffer */
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p = strcat(DestinationString, SourceString);
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ASSERT_AreEqual(2*SourceStringSize, strlen(DestinationString), "%u", "Unexpected string length while string concatenation to non-empty buffer!");
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/* Test return value */
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ASSERT_IsTrue(p == DestinationString,"Invalid return value!");
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/* Test contents */
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for(j=0; j <2; ++j)
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for(i=0; i < SourceStringSize; ++i)
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{
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unsigned position = j*SourceStringSize+i;
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unsigned current = DestinationString[position];
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unsigned expected = (i%128)+1;
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ASSERT_AreEqual(expected, current, "%u", "Unexpected destination buffer contents at position %u!\n" COMMA position);
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}
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}
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ENDTEST
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