Line data    Source code

       1             : // Copyright 2024 Accenture.
       2             : 
       3             : #include <estd/multi_slice.h>
       4             : 
       5             : #include <gtest/gtest.h>
       6             : 
       7           3 : TEST(multi_slice_Example, Construction_and_operations)
       8             : {
       9             :     // [EXAMPLE_MULTI_SLICE_CONSTRUCTION_AND_OPERATIONS_START]
      10           1 :     using MS816 = estd::multi_slice<uint8_t, uint16_t const>;
      11             : 
      12           1 :     uint8_t u8_array[10U]         = {0};
      13           1 :     uint16_t const u16_array[10U] = {0};
      14             : 
      15             :     // Creating a multi_slice of size 10 of different types.
      16           1 :     MS816 u8u16 = MS816(u8_array, u16_array);
      17             : 
      18             :     // Getting the size of multi_slice.
      19           1 :     EXPECT_EQ(10U, u8u16.size());
      20           1 :     EXPECT_EQ(10U, u8u16.get<uint8_t>().size());
      21           1 :     EXPECT_EQ(10U, u8u16.get<uint16_t const>().size());
      22             : 
      23             :     // Getting data pointer from slice.
      24           1 :     EXPECT_EQ(u8_array, u8u16.data<uint8_t>());
      25           1 :     EXPECT_EQ(u8_array, u8u16.data<uint8_t const>());
      26           1 :     EXPECT_EQ(u16_array, u8u16.data<uint16_t>());
      27           1 :     EXPECT_EQ(u16_array, u8u16.data<uint16_t const>());
      28             : 
      29             :     // at function returns reference to an item.
      30           1 :     EXPECT_EQ(&u8_array[2], &u8u16.at<uint8_t>(2));
      31           1 :     EXPECT_EQ(&u16_array[5], &u8u16.at<uint16_t>(5));
      32             : 
      33             :     // idx function gives the position of an item.
      34           1 :     EXPECT_EQ(3U, u8u16.idx(&u8_array[3]));
      35           1 :     EXPECT_EQ(4U, u8u16.idx(&u16_array[4]));
      36             : 
      37             :     // advance function reduces the size by the value passed in the argument.
      38           1 :     u8u16.advance(6U);
      39           1 :     EXPECT_EQ(4U, u8u16.size());
      40             : 
      41             :     // advance function adjusts the data pointer.
      42           1 :     EXPECT_EQ(u8_array + 6U, u8u16.get<uint8_t>().data());
      43           1 :     EXPECT_EQ(u16_array + 6U, u8u16.get<uint16_t const>().data());
      44             : 
      45             :     // trim function reduces the size by the value passed in the argument.
      46           1 :     u8u16.trim(2U);
      47           1 :     EXPECT_EQ(2U, u8u16.size());
      48             : 
      49             :     // trim function sets the size to zero if passed argument is bigger than the size.
      50           1 :     u8u16.trim(3);
      51           1 :     EXPECT_EQ(0U, u8u16.size());
      52             :     // [EXAMPLE_MULTI_SLICE_CONSTRUCTION_AND_OPERATIONS_END]
      53           1 : }