xref: /llvm-project-15.0.7/libc/test/src/__support/integer_to_string_test.cpp (revision 7c666c14)

//===-- Unittests for integer_to_string -----------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "src/__support/CPP/StringView.h"
#include "src/__support/integer_to_string.h"

#include "utils/UnitTest/Test.h"

#include "limits.h"

using __llvm_libc::integer_to_string;
using __llvm_libc::cpp::StringView;

TEST(LlvmLibcIntegerToStringTest, UINT8) {
  EXPECT_TRUE(integer_to_string(uint8_t(0)).str().equals(StringView("0")));
  EXPECT_TRUE(integer_to_string(uint8_t(1)).str().equals(StringView("1")));
  EXPECT_TRUE(integer_to_string(uint8_t(12)).str().equals(StringView("12")));
  EXPECT_TRUE(integer_to_string(uint8_t(123)).str().equals(StringView("123")));
  EXPECT_TRUE(
      integer_to_string(uint8_t(UINT8_MAX)).str().equals(StringView("255")));
  EXPECT_TRUE(integer_to_string(uint8_t(-1)).str().equals(StringView("255")));
}

TEST(LlvmLibcIntegerToStringTest, INT8) {
  EXPECT_TRUE(integer_to_string(int8_t(0)).str().equals(StringView("0")));
  EXPECT_TRUE(integer_to_string(int8_t(1)).str().equals(StringView("1")));
  EXPECT_TRUE(integer_to_string(int8_t(12)).str().equals(StringView("12")));
  EXPECT_TRUE(integer_to_string(int8_t(123)).str().equals(StringView("123")));
  EXPECT_TRUE(integer_to_string(int8_t(-12)).str().equals(StringView("-12")));
  EXPECT_TRUE(integer_to_string(int8_t(-123)).str().equals(StringView("-123")));
  EXPECT_TRUE(
      integer_to_string(int8_t(INT8_MAX)).str().equals(StringView("127")));
  EXPECT_TRUE(
      integer_to_string(int8_t(INT8_MIN)).str().equals(StringView("-128")));
}

TEST(LlvmLibcIntegerToStringTest, UINT16) {
  EXPECT_TRUE(integer_to_string(uint16_t(0)).str().equals(StringView("0")));
  EXPECT_TRUE(integer_to_string(uint16_t(1)).str().equals(StringView("1")));
  EXPECT_TRUE(integer_to_string(uint16_t(12)).str().equals(StringView("12")));
  EXPECT_TRUE(integer_to_string(uint16_t(123)).str().equals(StringView("123")));
  EXPECT_TRUE(
      integer_to_string(uint16_t(1234)).str().equals(StringView("1234")));
  EXPECT_TRUE(
      integer_to_string(uint16_t(12345)).str().equals(StringView("12345")));
  EXPECT_TRUE(integer_to_string(uint16_t(UINT16_MAX))
                  .str()
                  .equals(StringView("65535")));
  EXPECT_TRUE(
      integer_to_string(uint16_t(-1)).str().equals(StringView("65535")));
}

TEST(LlvmLibcIntegerToStringTest, INT16) {
  EXPECT_TRUE(integer_to_string(int16_t(0)).str().equals(StringView("0")));
  EXPECT_TRUE(integer_to_string(int16_t(1)).str().equals(StringView("1")));
  EXPECT_TRUE(integer_to_string(int16_t(12)).str().equals(StringView("12")));
  EXPECT_TRUE(integer_to_string(int16_t(123)).str().equals(StringView("123")));
  EXPECT_TRUE(
      integer_to_string(int16_t(1234)).str().equals(StringView("1234")));
  EXPECT_TRUE(
      integer_to_string(int16_t(12345)).str().equals(StringView("12345")));
  EXPECT_TRUE(integer_to_string(int16_t(-1)).str().equals(StringView("-1")));
  EXPECT_TRUE(integer_to_string(int16_t(-12)).str().equals(StringView("-12")));
  EXPECT_TRUE(
      integer_to_string(int16_t(-123)).str().equals(StringView("-123")));
  EXPECT_TRUE(
      integer_to_string(int16_t(-1234)).str().equals(StringView("-1234")));
  EXPECT_TRUE(
      integer_to_string(int16_t(-12345)).str().equals(StringView("-12345")));
  EXPECT_TRUE(
      integer_to_string(int16_t(INT16_MAX)).str().equals(StringView("32767")));
  EXPECT_TRUE(
      integer_to_string(int16_t(INT16_MIN)).str().equals(StringView("-32768")));
}

TEST(LlvmLibcIntegerToStringTest, UINT32) {
  EXPECT_TRUE(integer_to_string(uint32_t(0)).str().equals(StringView("0")));
  EXPECT_TRUE(integer_to_string(uint32_t(1)).str().equals(StringView("1")));
  EXPECT_TRUE(integer_to_string(uint32_t(12)).str().equals(StringView("12")));
  EXPECT_TRUE(integer_to_string(uint32_t(123)).str().equals(StringView("123")));
  EXPECT_TRUE(
      integer_to_string(uint32_t(1234)).str().equals(StringView("1234")));
  EXPECT_TRUE(
      integer_to_string(uint32_t(12345)).str().equals(StringView("12345")));
  EXPECT_TRUE(
      integer_to_string(uint32_t(123456)).str().equals(StringView("123456")));
  EXPECT_TRUE(
      integer_to_string(uint32_t(1234567)).str().equals(StringView("1234567")));
  EXPECT_TRUE(integer_to_string(uint32_t(12345678))
                  .str()
                  .equals(StringView("12345678")));
  EXPECT_TRUE(integer_to_string(uint32_t(123456789))
                  .str()
                  .equals(StringView("123456789")));
  EXPECT_TRUE(integer_to_string(uint32_t(1234567890))
                  .str()
                  .equals(StringView("1234567890")));
  EXPECT_TRUE(integer_to_string(uint32_t(UINT32_MAX))
                  .str()
                  .equals(StringView("4294967295")));
  EXPECT_TRUE(
      integer_to_string(uint32_t(-1)).str().equals(StringView("4294967295")));
}

TEST(LlvmLibcIntegerToStringTest, INT32) {
  EXPECT_TRUE(integer_to_string(int32_t(0)).str().equals(StringView("0")));
  EXPECT_TRUE(integer_to_string(int32_t(1)).str().equals(StringView("1")));
  EXPECT_TRUE(integer_to_string(int32_t(12)).str().equals(StringView("12")));
  EXPECT_TRUE(integer_to_string(int32_t(123)).str().equals(StringView("123")));
  EXPECT_TRUE(
      integer_to_string(int32_t(1234)).str().equals(StringView("1234")));
  EXPECT_TRUE(
      integer_to_string(int32_t(12345)).str().equals(StringView("12345")));
  EXPECT_TRUE(
      integer_to_string(int32_t(123456)).str().equals(StringView("123456")));
  EXPECT_TRUE(
      integer_to_string(int32_t(1234567)).str().equals(StringView("1234567")));
  EXPECT_TRUE(integer_to_string(int32_t(12345678))
                  .str()
                  .equals(StringView("12345678")));
  EXPECT_TRUE(integer_to_string(int32_t(123456789))
                  .str()
                  .equals(StringView("123456789")));
  EXPECT_TRUE(integer_to_string(int32_t(1234567890))
                  .str()
                  .equals(StringView("1234567890")));
  EXPECT_TRUE(integer_to_string(int32_t(-1)).str().equals(StringView("-1")));
  EXPECT_TRUE(integer_to_string(int32_t(-12)).str().equals(StringView("-12")));
  EXPECT_TRUE(
      integer_to_string(int32_t(-123)).str().equals(StringView("-123")));
  EXPECT_TRUE(
      integer_to_string(int32_t(-1234)).str().equals(StringView("-1234")));
  EXPECT_TRUE(
      integer_to_string(int32_t(-12345)).str().equals(StringView("-12345")));
  EXPECT_TRUE(
      integer_to_string(int32_t(-123456)).str().equals(StringView("-123456")));
  EXPECT_TRUE(integer_to_string(int32_t(-1234567))
                  .str()
                  .equals(StringView("-1234567")));
  EXPECT_TRUE(integer_to_string(int32_t(-12345678))
                  .str()
                  .equals(StringView("-12345678")));
  EXPECT_TRUE(integer_to_string(int32_t(-123456789))
                  .str()
                  .equals(StringView("-123456789")));
  EXPECT_TRUE(integer_to_string(int32_t(-1234567890))
                  .str()
                  .equals(StringView("-1234567890")));
  EXPECT_TRUE(integer_to_string(int32_t(INT32_MAX))
                  .str()
                  .equals(StringView("2147483647")));
  EXPECT_TRUE(integer_to_string(int32_t(INT32_MIN))
                  .str()
                  .equals(StringView("-2147483648")));
}

TEST(LlvmLibcIntegerToStringTest, UINT64) {
  EXPECT_TRUE(integer_to_string(uint64_t(0)).str().equals(StringView("0")));
  EXPECT_TRUE(integer_to_string(uint64_t(1)).str().equals(StringView("1")));
  EXPECT_TRUE(integer_to_string(uint64_t(12)).str().equals(StringView("12")));
  EXPECT_TRUE(integer_to_string(uint64_t(123)).str().equals(StringView("123")));
  EXPECT_TRUE(
      integer_to_string(uint64_t(1234)).str().equals(StringView("1234")));
  EXPECT_TRUE(
      integer_to_string(uint64_t(12345)).str().equals(StringView("12345")));
  EXPECT_TRUE(
      integer_to_string(uint64_t(123456)).str().equals(StringView("123456")));
  EXPECT_TRUE(
      integer_to_string(uint64_t(1234567)).str().equals(StringView("1234567")));
  EXPECT_TRUE(integer_to_string(uint64_t(12345678))
                  .str()
                  .equals(StringView("12345678")));
  EXPECT_TRUE(integer_to_string(uint64_t(123456789))
                  .str()
                  .equals(StringView("123456789")));
  EXPECT_TRUE(integer_to_string(uint64_t(1234567890))
                  .str()
                  .equals(StringView("1234567890")));
  EXPECT_TRUE(integer_to_string(uint64_t(1234567890123456789))
                  .str()
                  .equals(StringView("1234567890123456789")));
  EXPECT_TRUE(integer_to_string(uint64_t(UINT64_MAX))
                  .str()
                  .equals(StringView("18446744073709551615")));
  EXPECT_TRUE(integer_to_string(uint64_t(-1))
                  .str()
                  .equals(StringView("18446744073709551615")));
}

TEST(LlvmLibcIntegerToStringTest, INT64) {
  EXPECT_TRUE(integer_to_string(int64_t(0)).str().equals(StringView("0")));
  EXPECT_TRUE(integer_to_string(int64_t(1)).str().equals(StringView("1")));
  EXPECT_TRUE(integer_to_string(int64_t(12)).str().equals(StringView("12")));
  EXPECT_TRUE(integer_to_string(int64_t(123)).str().equals(StringView("123")));
  EXPECT_TRUE(
      integer_to_string(int64_t(1234)).str().equals(StringView("1234")));
  EXPECT_TRUE(
      integer_to_string(int64_t(12345)).str().equals(StringView("12345")));
  EXPECT_TRUE(
      integer_to_string(int64_t(123456)).str().equals(StringView("123456")));
  EXPECT_TRUE(
      integer_to_string(int64_t(1234567)).str().equals(StringView("1234567")));
  EXPECT_TRUE(integer_to_string(int64_t(12345678))
                  .str()
                  .equals(StringView("12345678")));
  EXPECT_TRUE(integer_to_string(int64_t(123456789))
                  .str()
                  .equals(StringView("123456789")));
  EXPECT_TRUE(integer_to_string(int64_t(1234567890))
                  .str()
                  .equals(StringView("1234567890")));
  EXPECT_TRUE(integer_to_string(int64_t(1234567890123456789))
                  .str()
                  .equals(StringView("1234567890123456789")));
  EXPECT_TRUE(integer_to_string(int64_t(-1)).str().equals(StringView("-1")));
  EXPECT_TRUE(integer_to_string(int64_t(-12)).str().equals(StringView("-12")));
  EXPECT_TRUE(
      integer_to_string(int64_t(-123)).str().equals(StringView("-123")));
  EXPECT_TRUE(
      integer_to_string(int64_t(-1234)).str().equals(StringView("-1234")));
  EXPECT_TRUE(
      integer_to_string(int64_t(-12345)).str().equals(StringView("-12345")));
  EXPECT_TRUE(
      integer_to_string(int64_t(-123456)).str().equals(StringView("-123456")));
  EXPECT_TRUE(integer_to_string(int64_t(-1234567))
                  .str()
                  .equals(StringView("-1234567")));
  EXPECT_TRUE(integer_to_string(int64_t(-12345678))
                  .str()
                  .equals(StringView("-12345678")));
  EXPECT_TRUE(integer_to_string(int64_t(-123456789))
                  .str()
                  .equals(StringView("-123456789")));
  EXPECT_TRUE(integer_to_string(int64_t(-1234567890))
                  .str()
                  .equals(StringView("-1234567890")));
  EXPECT_TRUE(integer_to_string(int64_t(-1234567890123456789))
                  .str()
                  .equals(StringView("-1234567890123456789")));
  EXPECT_TRUE(integer_to_string(int64_t(INT64_MAX))
                  .str()
                  .equals(StringView("9223372036854775807")));
  EXPECT_TRUE(integer_to_string(int64_t(INT64_MIN))
                  .str()
                  .equals(StringView("-9223372036854775808")));
}