59 lines
1.2 KiB
C++
59 lines
1.2 KiB
C++
#include <sstream>
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#include <gtest/gtest.h>
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#include "bignum.hh"
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using namespace abacus::bignum;
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TEST(BigNum, dump) {
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auto const zero = BigNum(0);
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auto const one = BigNum(1);
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auto const minus_one = BigNum(-1);
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auto const forty_two = BigNum(42);
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auto const to_str = [](auto num) {
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std::stringstream str;
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str << num;
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return str.str();
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};
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EXPECT_EQ(to_str(zero), "0");
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EXPECT_EQ(to_str(one), "1");
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EXPECT_EQ(to_str(minus_one), "-1");
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EXPECT_EQ(to_str(forty_two), "42");
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}
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TEST(BigNum, equality) {
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auto const zero = BigNum(0);
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auto const one = BigNum(1);
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EXPECT_EQ(zero, zero);
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EXPECT_EQ(one, one);
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EXPECT_NE(zero, one);
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}
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TEST(BigNum, comparisons) {
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auto const zero = BigNum(0);
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auto const one = BigNum(1);
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EXPECT_LT(zero, one);
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EXPECT_LE(zero, one);
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EXPECT_LE(zero, zero);
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EXPECT_GT(one, zero);
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EXPECT_GE(one, zero);
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EXPECT_GE(one, one);
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}
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TEST(BigNum, unary) {
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auto const zero = BigNum(0);
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auto const one = BigNum(1);
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EXPECT_EQ(zero, -zero);
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EXPECT_NE(one, -one);
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auto const minus_one = BigNum(-1);
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EXPECT_EQ(minus_one, -one);
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}
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