divide-two-integers-test.cpp

/*
 * Copyright (c) 2018 Christopher Friedt
 *
 * SPDX-License-Identifier: MIT
 */

#include <gtest/gtest.h>

#include "divide-two-integers.cpp"

TEST(DivideTwoIntegers, Test_10_3) {
  int dividend = 10;
  int divisor = 3;
  int expected_int = 3;
  int actual_int = Solution().divide(dividend, divisor);
  EXPECT_EQ(actual_int, expected_int);
}

TEST(DivideTwoIntegers, Test_7_n3) {
  int dividend = 7;
  int divisor = -3;
  int expected_int = -2;
  int actual_int = Solution().divide(dividend, divisor);
  EXPECT_EQ(actual_int, expected_int);
}

TEST(DivideTwoIntegers, Test_1_0) {
  // positive saturation
  int dividend = 1;
  int divisor = 0;
  int expected_int = INT_MAX;
  int actual_int = Solution().divide(dividend, divisor);
  EXPECT_EQ(actual_int, expected_int);
}

TEST(DivideTwoIntegers, Test_n1_0) {
  // negative saturation
  int dividend = -1;
  int divisor = 0;
  int expected_int = INT_MIN;
  int actual_int = Solution().divide(dividend, divisor);
  EXPECT_EQ(actual_int, expected_int);
}

TEST(DivideTwoIntegers, Test_500_1) {
  int dividend = 500;
  int divisor = 1;
  int expected_int = 500;
  int actual_int = Solution().divide(dividend, divisor);
  EXPECT_EQ(actual_int, expected_int);
}

TEST(DivideTwoIntegers, Test_INTMIN_n1) {
  int dividend = INT_MIN;
  int divisor = -1;
  int expected_int = INT_MAX;
  int actual_int = Solution().divide(dividend, divisor);
  EXPECT_EQ(actual_int, expected_int);
}

TEST(DivideTwoIntegers, Test_500_n1) {
  int dividend = 500;
  int divisor = -1;
  int expected_int = -500;
  int actual_int = Solution().divide(dividend, divisor);
  EXPECT_EQ(actual_int, expected_int);
}

TEST(DivideTwoIntegers, Test_INTMIN_INTMIN) {
  int dividend = INT_MIN;
  int divisor = INT_MIN;
  int expected_int = 1;
  int actual_int = Solution().divide(dividend, divisor);
  EXPECT_EQ(actual_int, expected_int);
}

TEST(DivideTwoIntegers, Test_INTMIN_5) {
  int dividend = INT_MIN;
  int divisor = INT_MAX / 2;
  int expected_int = -2;
  int actual_int = Solution().divide(dividend, divisor);
  EXPECT_EQ(actual_int, expected_int);
}

TEST(DivideTwoIntegers, Test_5_INTMIN) {
  int dividend = 5;
  int divisor = INT_MIN;
  int expected_int = 0;
  int actual_int = Solution().divide(dividend, divisor);
  EXPECT_EQ(actual_int, expected_int);
}

TEST(DivideTwoIntegers, Test_10_5) {
  int dividend = 10;
  int divisor = 5;
  int expected_int = 2;
  int actual_int = Solution().divide(dividend, divisor);
  EXPECT_EQ(actual_int, expected_int);
}