cloud-email/mitmproxy - clone of mitm proxy

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/* Test suite for the library.  First, it ``tests'' that all the constructs it
 * uses compile successfully.  Then, its output to stdout is compared to the
 * expected output automatically extracted from slash-slash comments below.
 * 
 * NOTE: For now, the test suite expects a 32-bit system.  On others, some tests
 * may fail, and it may be ineffective at catching bugs.  TODO: Remedy this. */

#include "BigIntegerLibrary.hh"

#include <string>
#include <iostream>
using namespace std;

// Evaluate expr and print the result or "error" as appropriate.
#define TEST(expr) do {\
	cout << "Line " << __LINE__ << ": ";\
	try {\
		cout << (expr);\
	} catch (const char *err) {\
		cout << "error";\
	}\
	cout << endl;\
} while (0)

const BigUnsigned &check(const BigUnsigned &x) {
	unsigned int l = x.getLength();
	if (l != 0 && x.getBlock(l-1) == 0)
		cout << "check: Unzapped number!" << endl;
	if (l > x.getCapacity())
		cout << "check: Capacity inconsistent with length!" << endl;
	return x;
}

const BigInteger &check(const BigInteger &x) {
	if (x.getSign() == 0 && !x.getMagnitude().isZero())
		cout << "check: Sign should not be zero!" << endl;
	if (x.getSign() != 0 && x.getMagnitude().isZero())
		cout << "check: Sign should be zero!" << endl;
	check(x.getMagnitude());
	return x;
}

short pathologicalShort = ~((unsigned short)(~0) >> 1);
int pathologicalInt = ~((unsigned int)(~0) >> 1);
long pathologicalLong = ~((unsigned long)(~0) >> 1);

int main() {

try {

BigUnsigned z(0), one(1), ten(10);
TEST(z); //0
TEST(1); //1
TEST(10); //10

// TODO: Comprehensively test the general and special cases of each function.

// === Default constructors ===

TEST(check(BigUnsigned())); //0
TEST(check(BigInteger())); //0

// === Block-array constructors ===

BigUnsigned::Blk myBlocks[3];
myBlocks[0] = 3;
myBlocks[1] = 4;
myBlocks[2] = 0;
BigUnsigned bu(myBlocks, 3);
TEST(check(bu)); //17179869187
TEST(check(BigInteger(myBlocks, 3))); //17179869187
TEST(check(BigInteger(bu         ))); //17179869187

// For nonzero magnitude, reject zero and invalid signs.
TEST(check(BigInteger(myBlocks, 3, BigInteger::positive))); //17179869187
TEST(check(BigInteger(myBlocks, 3, BigInteger::negative))); //-17179869187
TEST(check(BigInteger(myBlocks, 3, BigInteger::zero    ))); //error
TEST(check(BigInteger(bu,          BigInteger::positive))); //17179869187
TEST(check(BigInteger(bu,          BigInteger::negative))); //-17179869187


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