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/*
 * Copyright (c) 2020 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <gtest/gtest.h>

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <unistd.h>
#include <netinet/in.h>

extern "C" {
#include <hicn/base/khash.h>

}

KHASH_MAP_INIT_INT(int, unsigned char)

typedef struct {
	unsigned key;
	unsigned char val;
} int_unpack_t;

typedef struct {
	unsigned key;
	unsigned char val;
} __attribute__ ((__packed__)) int_packed_t;

#define hash_eq(a, b) ((a).key == (b).key)
#define hash_func(a) ((a).key)

KHASH_INIT(iun, int_unpack_t, char, 0, hash_func, hash_eq)
KHASH_INIT(ipk, int_packed_t, char, 0, hash_func, hash_eq)

class KHashTest : public ::testing::Test {
 protected:
  KHashTest() {
  }

  virtual ~KHashTest() {
    // You can do clean-up work that doesn't throw exceptions here.
  }

  // If the constructor and destructor are not enough for setting up
  // and cleaning up each test, you can define the following methods:

  virtual void SetUp() {
    
    khash = kh_init(int);
  }

  virtual void TearDown() {

    kh_destroy(int, khash);

  }
  khash_t(int) *khash;
};


TEST_F(KHashTest, KhashIntSize)
{
  int  ret;
  int k;
  int size = kh_size(khash);
	
  EXPECT_EQ(size, 0);
  k = kh_put(int, khash, 10, &ret);
  if (ret == 1) {
    kh_val(khash, k) = 10;
  }
  size = kh_size(khash);
  EXPECT_EQ(size, 1);

}

TEST_F(KHashTest, KhashIntPut)
{
  int  ret;
  int k;
  k = kh_put(int, khash, 10, &ret);
  if (ret == 1) {
    kh_val(khash, k) = 10;
  }
  int size = kh_size(khash);
  EXPECT_EQ(size, 1);
  k = kh_put(int, khash, 20, &ret);
  if (ret == 1) {
    kh_val(khash, k) = 20;
  }
  size = kh_size(khash);
  EXPECT_EQ(size, 2);
}

TEST_F(KHashTest, KhashCheckValue)
{
  int  ret;
  int k;
  k = kh_put(int, khash, 10, &ret);
  if (ret == 1) {
    kh_val(khash, k) = 100;
  }
  k = kh_put(int, khash, 20, &ret);
  if (ret == 1) {
    kh_val(khash, k) = 200;
  }

  k = kh_put(int, khash, 10, &ret);
  int val = -1;
  if (!ret)
    val = kh_val(khash, k);
  EXPECT_EQ(val, 100);

  k = kh_put(int, khash, 20, &ret);
  val = -1;
  if (!ret)
    val = kh_val(khash, k);
  EXPECT_EQ(val, 200);
}

int main(int argc, char **argv)
{
    ::testing::InitGoogleTest(&argc, argv);
    return RUN_ALL_TESTS();
}