rational_test.cpp

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#ifdef BUILD_UNITTEST
 
#include "warning_push.h"
#include <gtest/gtest.h>
#include "warning_pop.h"
 
 
#include "rational.h"
 
using namespace newlang;
 
TEST(ObjTest, BigNum) {
 
    BigNum dec;
 
    ASSERT_TRUE(dec.value);
 
    dec.SetFromString("123456789");
    ASSERT_TRUE(dec.value);
    
    ASSERT_STREQ("123456789", dec.GetAsString().c_str());
    ASSERT_EQ(123456789, dec.GetAsInteger());
    ASSERT_EQ(123456789, dec.GetAsNumber());
 
    BigNum dec2;
    dec2.SetFromString("-123456789");
    ASSERT_STREQ("-123456789", dec2.GetAsString().c_str());
    ASSERT_EQ(-123456789, dec2.GetAsInteger());
    ASSERT_EQ(-123456789, dec2.GetAsNumber());
 
    dec.add(dec2);
    ASSERT_STREQ("0", dec.GetAsString().c_str());
    ASSERT_EQ(0, dec.GetAsInteger());
 
    dec.sub(dec2);
    ASSERT_STREQ("123456789", dec.GetAsString().c_str());
    ASSERT_EQ(123456789, dec.GetAsInteger());
 
 
    BigNum dec3;
    dec3.SetFromString("123");
    ASSERT_STREQ("123", dec3.GetAsString().c_str());
    ASSERT_EQ(123, dec3.GetAsInteger());
 
    dec.mul(dec3);
    ASSERT_STREQ("15185185047", dec.GetAsString().c_str());
    ASSERT_EQ(15185185047, dec.GetAsInteger());
 
    dec.div(dec2, dec3);
    ASSERT_STREQ("-123", dec.GetAsString().c_str());
    ASSERT_EQ(-123, dec.GetAsInteger());
 
    ASSERT_STREQ("0", dec3.GetAsString().c_str());
    ASSERT_EQ(0, dec3.GetAsInteger());
 
 
    dec.SetFromString("123456789123456789123456789123456789");
    ASSERT_STREQ("123456789123456789123456789123456789", dec.GetAsString().c_str());
    ASSERT_ANY_THROW(dec.GetAsInteger());
    ASSERT_DOUBLE_EQ(1.23456789123456789e+35, dec.GetAsNumber());
 
}
 
#endif