public void Calculate_memory_cost_returns_0_for_0_length()
{
IEvmMemory memory = CreateEvmMemory();
long cost = memory.CalculateMemoryCost(long.MaxValue, BigInteger.Zero);
Assert.AreEqual(0L, cost);
}
public void Save_empty_beyond_reasonable_size_does_not_throw()
{
IEvmMemory memory = CreateEvmMemory();
UInt256 dest = (UInt256)int.MaxValue + 1;
memory.Save(ref dest, new byte[0]);
}
public void Calculate_memory_cost_returns_0_for_0_length()
{
IEvmMemory memory = CreateEvmMemory();
UInt256 dest = long.MaxValue;
long cost = memory.CalculateMemoryCost(ref dest, UInt256.Zero);
Assert.AreEqual(0L, cost);
}
public void Calculate_memory_cost_returns_0_for_subsequent_calls()
{
IEvmMemory memory = CreateEvmMemory();
long cost1 = memory.CalculateMemoryCost(BigInteger.One, BigInteger.One);
long cost2 = memory.CalculateMemoryCost(BigInteger.One, BigInteger.One);
Assert.AreEqual(0L, cost2);
}
public void Calculate_memory_cost_returns_0_for_subsequent_calls()
{
IEvmMemory memory = CreateEvmMemory();
UInt256 dest = UInt256.One;
long cost1 = memory.CalculateMemoryCost(ref dest, UInt256.One);
long cost2 = memory.CalculateMemoryCost(ref dest, UInt256.One);
Assert.AreEqual(0L, cost2);
}
public void Trace_when_position_not_on_word_border()
{
IEvmMemory memory = CreateEvmMemory();
memory.SaveByte(EvmMemory.WordSize / 2, new byte[] { 1 });
List <string> trace = memory.GetTrace();
Assert.AreEqual(1, trace.Count);
}
public void Trace_two_words()
{
IEvmMemory memory = CreateEvmMemory();
memory.SaveWord(EvmMemory.WordSize, new byte[EvmMemory.WordSize]);
List <string> trace = memory.GetTrace();
Assert.AreEqual(2, trace.Count);
}
public void Trace_one_word()
{
IEvmMemory memory = CreateEvmMemory();
memory.SaveWord(0, new byte[EvmPooledMemory.WordSize]);
List <string> trace = memory.GetTrace();
Assert.AreEqual(1, trace.Count);
}
public void Trace_when_position_not_on_word_border()
{
IEvmMemory memory = CreateEvmMemory();
UInt256 dest = EvmPooledMemory.WordSize / 2;
memory.SaveByte(ref dest, 1);
List <string> trace = memory.GetTrace();
Assert.AreEqual(1, trace.Count);
}
public void Trace_two_words()
{
IEvmMemory memory = CreateEvmMemory();
UInt256 dest = EvmPooledMemory.WordSize;
memory.SaveWord(ref dest, new byte[EvmPooledMemory.WordSize]);
List <string> trace = memory.GetTrace();
Assert.AreEqual(2, trace.Count);
}
public void Save_empty_beyond_reasonable_size_does_not_throw()
{
IEvmMemory memory = CreateEvmMemory();
memory.Save((BigInteger)int.MaxValue + 1, new byte[0]);
}