/*

* Copyright (c) Facebook, Inc. and its affiliates.

*

* This source code is licensed under the MIT license found in the

* LICENSE file in the root directory of this source tree.

*/

#include "dtoa/dtoa.h"

#include "gtest/gtest.h"

namespace {

TEST(DtoaTest, SmokeTest) {

char buf[32];

g_fmt(buf, 3.14);

EXPECT_STREQ("3.14", buf);

DtoaAllocator<> dalloc{};

char *se;

double val = hermes_g_strtod(buf, &se);

ASSERT_EQ(0, *se);

ASSERT_EQ(3.14, val);

const char *inv = "asdf";

val = hermes_g_strtod(inv, &se);

ASSERT_EQ(inv, se);

ASSERT_EQ(0, val);

#define DtoaDecimalTest(M, N, K, S, SIGN) \

{ \

int n, sign; \

char *s = ::g_dtoa(dalloc, M, 0, 0, &n, &sign, nullptr); \

int k = ::strlen(s); \

EXPECT_EQ(N, n); \

EXPECT_EQ(K, k); \

EXPECT_EQ(SIGN, sign); \

EXPECT_STREQ(S, s); \

g_freedtoa(dalloc, s); \

}

DtoaDecimalTest(2.123, 1, 4, "2123", 0);

DtoaDecimalTest(123, 3, 3, "123", 0);

DtoaDecimalTest(1000, 4, 1, "1", 0);

DtoaDecimalTest(1000000, 7, 1, "1", 0);

DtoaDecimalTest(-1000000, 7, 1, "1", 1);

}

} // namespace