package test.ethereum.vm;
import static org.junit.Assert.*;
import java.nio.ByteBuffer;
import org.ethereum.util.ByteUtil;
import org.ethereum.vm.Program;
import org.ethereum.vm.ProgramInvokeMockImpl;
import org.junit.Before;
import org.junit.Ignore;
import org.junit.Test;
public class ProgramMemoryTest {
ProgramInvokeMockImpl pi = null;
Program program;
ByteBuffer memory;
@Before
public void createProgram() {
program = new Program(ByteUtil.EMPTY_BYTE_ARRAY, pi);
}
@Test
public void testGetMemSize() {
ByteBuffer memory = ByteBuffer.allocate(64);
program.initMem(memory);
assertEquals(64, program.getMemSize());
}
@Test
@Ignore
public void testMemorySave() {
fail("Not yet implemented");
}
@Test
@Ignore
public void testMemoryLoad() {
fail("Not yet implemented");
}
@Test
public void testMemoryChunk1() {
program.initMem(ByteBuffer.allocate(64));
int offset = 128;
int size = 32;
program.memoryChunk(offset, size);
assertEquals(160, program.getMemSize());
}
@Test // size 0 doesn't increate memory
public void testMemoryChunk2() {
program.initMem(ByteBuffer.allocate(64));
int offset = 96;
int size = 0;
program.memoryChunk(offset, size);
assertEquals(64, program.getMemSize());
}
@Test
public void testAllocateMemory1() {
program.initMem(ByteBuffer.allocate(64));
int offset = 32;
int size = 32;
program.allocateMemory(offset, size);
assertEquals(64, program.getMemSize());
}
@Test
public void testAllocateMemory2() {
// memory.limit() > offset, == size
// memory.limit() < offset + size
program.initMem(ByteBuffer.allocate(64));
int offset = 32;
int size = 64;
program.allocateMemory(offset, size);
assertEquals(96, program.getMemSize());
}
@Test
public void testAllocateMemory3() {
// memory.limit() > offset, > size
program.initMem(ByteBuffer.allocate(64));
int offset = 0;
int size = 32;
program.allocateMemory(offset, size);
assertEquals(64, program.getMemSize());
}
@Test
public void testAllocateMemory4() {
program.initMem(ByteBuffer.allocate(64));
int offset = 0;
int size = 64;
program.allocateMemory(offset, size);
assertEquals(64, program.getMemSize());
}
@Test
public void testAllocateMemory5() {
program.initMem(ByteBuffer.allocate(64));
int offset = 0;
int size = 0;
program.allocateMemory(offset, size);
assertEquals(64, program.getMemSize());
}
@Test
public void testAllocateMemory6() {
// memory.limit() == offset, > size
program.initMem(ByteBuffer.allocate(64));
int offset = 64;
int size = 32;
program.allocateMemory(offset, size);
assertEquals(96, program.getMemSize());
}
@Test
public void testAllocateMemory7() {
// memory.limit() == offset - size
program.initMem(ByteBuffer.allocate(64));
int offset = 96;
int size = 32;
program.allocateMemory(offset, size);
assertEquals(128, program.getMemSize());
}
@Test
public void testAllocateMemory8() {
program.initMem(ByteBuffer.allocate(64));
int offset = 0;
int size = 96;
program.allocateMemory(offset, size);
assertEquals(96, program.getMemSize());
}
@Test
public void testAllocateMemory9() {
// memory.limit() < offset, > size
// memory.limit() < offset - size
program.initMem(ByteBuffer.allocate(64));
int offset = 96;
int size = 0;
program.allocateMemory(offset, size);
assertEquals(64, program.getMemSize());
}
/************************************************/
@Test
public void testAllocateMemory10() {
// memory = null, offset > size
int offset = 32;
int size = 0;
program.allocateMemory(offset, size);
assertEquals(0, program.getMemSize());
}
@Test
public void testAllocateMemory11() {
// memory = null, offset < size
int offset = 0;
int size = 32;
program.allocateMemory(offset, size);
assertEquals(32, program.getMemSize());
}
@Test
public void testAllocateMemory12() {
// memory.limit() < offset, < size
program.initMem(ByteBuffer.allocate(64));
int offset = 64;
int size = 96;
program.allocateMemory(offset, size);
assertEquals(160, program.getMemSize());
}
@Test
public void testAllocateMemory13() {
// memory.limit() > offset, < size
program.initMem(ByteBuffer.allocate(64));
int offset = 32;
int size = 128;
program.allocateMemory(offset, size);
assertEquals(160, program.getMemSize());
}
@Test
public void testAllocateMemory14() {
// memory.limit() < offset, == size
program.initMem(ByteBuffer.allocate(64));
int offset = 96;
int size = 64;
program.allocateMemory(offset, size);
assertEquals(160, program.getMemSize());
}
@Test
public void testAllocateMemory15() {
// memory.limit() == offset, < size
program.initMem(ByteBuffer.allocate(64));
int offset = 64;
int size = 96;
program.allocateMemory(offset, size);
assertEquals(160, program.getMemSize());
}
@Test
public void testAllocateMemory16() {
// memory.limit() == offset, == size
// memory.limit() > offset - size
program.initMem(ByteBuffer.allocate(64));
int offset = 64;
int size = 64;
program.allocateMemory(offset, size);
assertEquals(128, program.getMemSize());
}
@Test
public void testAllocateMemory17() {
// memory.limit() > offset + size
program.initMem(ByteBuffer.allocate(96));
int offset = 32;
int size = 32;
program.allocateMemory(offset, size);
assertEquals(96, program.getMemSize());
}
@Test
public void testAllocateMemoryUnrounded1() {
// memory unrounded
program.initMem(ByteBuffer.allocate(64));
int offset = 64;
int size = 32;
program.allocateMemory(offset, size);
assertEquals(96, program.getMemSize());
}
@Test
public void testAllocateMemoryUnrounded2() {
// offset unrounded
program.initMem(ByteBuffer.allocate(64));
int offset = 16;
int size = 32;
program.allocateMemory(offset, size);
assertEquals(64, program.getMemSize());
}
@Test
public void testAllocateMemoryUnrounded3() {
// size unrounded
program.initMem(ByteBuffer.allocate(64));
int offset = 64;
int size = 16;
program.allocateMemory(offset, size);
assertEquals(96, program.getMemSize());
}
@Test
public void testAllocateMemoryUnrounded4() {
// memory + offset unrounded
program.initMem(ByteBuffer.allocate(64));
int offset = 16;
int size = 32;
program.allocateMemory(offset, size);
assertEquals(64 , program.getMemSize());
}
@Test
public void testAllocateMemoryUnrounded5() {
// memory + size unrounded
program.initMem(ByteBuffer.allocate(64));
int offset = 32;
int size = 16;
program.allocateMemory(offset, size);
assertEquals(64, program.getMemSize());
}
@Test
public void testAllocateMemoryUnrounded6() {
// offset + size unrounded
program.initMem(ByteBuffer.allocate(32));
int offset = 16;
int size = 16;
program.allocateMemory(offset, size);
assertEquals(32, program.getMemSize());
}
@Test
public void testAllocateMemoryUnrounded7() {
// memory + offset + size unrounded
program.initMem(ByteBuffer.allocate(32));
int offset = 16;
int size = 16;
program.allocateMemory(offset, size);
assertEquals(32,program.getMemSize());
}
}