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#include "gtest/gtest.h"
#include "upb/base/descriptor_constants.h"
#include "upb/collections/array.h"
#include "upb/upb.hpp"

TEST(CollectionsTest, Arrays) {
  upb::Arena arena;
  upb::Status status;

  upb_Array* array = upb_Array_New(arena.ptr(), kUpb_CType_Int32);
  EXPECT_TRUE(array);

  for (int i = 0; i < 10; i++) {
    upb_MessageValue mv = {.int32_val = 3 * i};
    upb_Array_Append(array, mv, arena.ptr());
    EXPECT_EQ(upb_Array_Size(array), i + 1);
    EXPECT_EQ(upb_Array_Get(array, i).int32_val, 3 * i);
  }

  upb_Array_Resize(array, 12, arena.ptr());
  EXPECT_EQ(upb_Array_Get(array, 10).int32_val, 0);
  EXPECT_EQ(upb_Array_Get(array, 11).int32_val, 0);

  upb_Array_Resize(array, 4, arena.ptr());
  EXPECT_EQ(upb_Array_Size(array), 4);

  upb_Array_Resize(array, 6, arena.ptr());
  EXPECT_EQ(upb_Array_Size(array), 6);

  EXPECT_EQ(upb_Array_Get(array, 3).int32_val, 9);
  EXPECT_EQ(upb_Array_Get(array, 4).int32_val, 0);
  EXPECT_EQ(upb_Array_Get(array, 5).int32_val, 0);
}