/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */
package org.apache.tuweni.evm.impl

import org.apache.tuweni.units.bigints.UInt256
import org.junit.jupiter.api.Assertions.assertEquals
import org.junit.jupiter.api.Test

class MemoryTest {

  @Test
  fun testNewMemorySize() {
    val mem = Memory()
    assertEquals(UInt256.valueOf(1), mem.newSize(UInt256.ZERO, UInt256.valueOf(4)))

    assertEquals(UInt256.valueOf(5), mem.newSize(UInt256.valueOf(128), UInt256.valueOf(32)))
  }

  @Test
  fun testMaxSize() {
    val mem = Memory()
    assertEquals(UInt256.MAX_VALUE, mem.newSize(UInt256.MAX_VALUE.subtract(2), UInt256.valueOf(4)))
  }
}
