X-Git-Url: https://git.ucc.asn.au/?p=ipdf%2Fcode.git;a=blobdiff_plain;f=src%2Ftests%2Farb.cpp;h=f8a74d3f3f44fc542cc7b9b84a969d25fcf42786;hp=354c337801512e362675624d0a69c3a336f9662d;hb=68dfceb76cbc78e1e0dd529dd0c14be116528353;hpb=6ad7fc3c833837713405b64a50e62dd128cb7a30

diff --git a/src/tests/arb.cpp b/src/tests/arb.cpp
index 354c337..f8a74d3 100644
--- a/src/tests/arb.cpp
+++ b/src/tests/arb.cpp
@@ -1,25 +1,121 @@
 #include <cstdlib>
 #include <cstdio>
 #include <iostream>
-
+#include <cassert>
 #include "arbint.h"
 
 using namespace std;
 using namespace IPDF;
 
+#define TEST_CASES 10
+
+
+void TestShifting(unsigned cases)
+{
+	for (unsigned c = 0; c < cases; ++c)
+	{
+		Arbint aa(1u, rand());
+		Arbint bb(aa);
+		for (unsigned i = 0; i < 100*sizeof(Arbint::digit_t); ++i)
+		{
+			bb <<= i;
+			//Debug("i is %u bb is %c%s, a was %c%s", i, bb.SignChar(), bb.DigitStr().c_str(), aa.SignChar(), aa.DigitStr().c_str());
+			bb >>= i;
+			if (bb != aa)
+			{
+				Fatal("i is %u bb is %c%s, a was %c%s", i, bb.SignChar(), bb.DigitStr().c_str(), aa.SignChar(), aa.DigitStr().c_str());
+			}
+		}
+	}
+}
+
+void TestMaths(unsigned cases)
+{
+	for (unsigned i = 0; i < cases; ++i)
+	{
+		int64_t a = rand();
+		int64_t b = rand();
+		
+		Arbint arb_a(a);
+		Arbint arb_b(b);
+		
+		//Debug("Test %u: a = %li, b = %li", i, a, b);
+		
+		//Debug("a < b = %d", a < b);
+		//Debug("Arb a<b = %d", arb_a < arb_b);
+		assert((arb_a < arb_b) == (a < b));
+		
+		//Debug("a > b = %d", a > b);
+		//Debug("Arb a>b = %d", arb_a > arb_b);
+		assert((arb_a > arb_b) == (a > b));
+		
+		//Debug("a + b = %.16lx", a+b);
+		//Debug("Arb a+b = %s", (arb_a+arb_b).DigitStr().c_str());
+		assert((arb_a+arb_b).AsDigit() == a + b);
+		
+		//Debug("a - b = %li %.16lx", (a-b), (a-b));
+		//Debug("Arb a-b = %s %.16lx", (arb_a-arb_b).DigitStr().c_str(), (arb_a-arb_b).AsDigit());
+		assert((arb_a-arb_b).AsDigit() == a - b);
+		
+		//Debug("a * b = %.16lx", a*b);
+		//Debug("Arb a*b = %s", (arb_a*arb_b).DigitStr().c_str());
+		assert((arb_a*arb_b).AsDigit() == a * b);
+		
+		//Debug("a / b = %.16lx", a/b);
+		//Debug("Arb a/b = %s", (arb_a/arb_b).DigitStr().c_str());
+		assert((arb_a/arb_b).AsDigit() == a / b);
+		assert((arb_a%arb_b).AsDigit() == a % b);
+	}	
+}
+
+void TestConstructFromDouble(unsigned cases)
+{
+	for (unsigned c = 0; c < cases; ++c)
+	{
+		int64_t test = (int64_t)(rand()*1e6);
+		double d = (double)(test);
+		Arbint a(d);
+		Arbint b(test);
+		if (a != b)
+		{
+			Fatal("test is %li, d is %f, a is %s, b is %s", test, d, a.DigitStr().c_str(), b.DigitStr().c_str());
+		}
+		
+		
+	}
+}
+
+void TestSubtraction()
+{
+	Arbint b(2u, 45L, 10L);
+	Arbint a(1u, 128L, 0L);
+	Arbint c(a - b);
+	Arbint test = -Arbint(2u, 18446744073709551533LU,9L);
+	Debug("%c%s - %c%s = %c%s", a.SignChar(), a.DigitStr().c_str(), b.SignChar(), b.DigitStr().c_str(), c.SignChar(), c.DigitStr().c_str());
+	if (c != test)
+	{
+		Fatal("Expected %c%s, got %c%s", test.SignChar(), test.DigitStr().c_str(), c.SignChar(), c.DigitStr().c_str());
+	}
+}
+
 int main(int argc, char ** argv)
 {
-	int64_t test[] = {12L, 5L};
-	test[1] = 0xE000000000000000;
-	int64_t size = sizeof(test)/sizeof(int64_t);
 	
-	int64_t mul = 2L;
+	Debug("Shift testing...");
+	TestShifting(TEST_CASES);
+	Debug("Left/Right shift testing succeeded");
+
+	Debug("Testing +-*/%");
+	TestMaths(TEST_CASES);
+	Debug("All (single digit) maths operator tests successful!");
+	
 	
-	int64_t overflow = mul_digits(test, mul, size);
+	Debug("Testing construct from double");
+	TestConstructFromDouble(TEST_CASES);
+	Debug("Construct from double successful");
 	
-	for (int64_t i = 0; i < size; ++i)
-	{
-		printf("digit[%li] = %.16lx\n", i, test[i]);
-	}
-	printf("Overflow is %.16lx\n", overflow);
+	Debug("Testing subtractions");
+	TestSubtraction();
+	Debug("Testing subtractions successful");
+	return 0;
 }