package net.bytebuddy.implementation.bytecode;
import net.bytebuddy.implementation.Implementation;
import net.bytebuddy.test.utility.MockitoRule;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestRule;
import org.junit.runner.RunWith;
import org.junit.runners.Parameterized;
import org.mockito.Mock;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import java.util.Arrays;
import java.util.Collection;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.mockito.Mockito.*;
@RunWith(Parameterized.class)
public class AdditionTest {
@Parameterized.Parameters
public static Collection<Object[]> data() {
return Arrays.asList(new Object[][]{
{Addition.INTEGER, StackSize.SINGLE, Opcodes.IADD},
{Addition.LONG, StackSize.DOUBLE, Opcodes.LADD},
{Addition.FLOAT, StackSize.SINGLE, Opcodes.FADD},
{Addition.DOUBLE, StackSize.DOUBLE, Opcodes.DADD},
});
}
private final StackManipulation stackManipulation;
private final StackSize stackSize;
private final int opcodes;
public AdditionTest(StackManipulation stackManipulation, StackSize stackSize, int opcodes) {
this.stackManipulation = stackManipulation;
this.stackSize = stackSize;
this.opcodes = opcodes;
}
@Rule
public TestRule mockitoRule = new MockitoRule(this);
@Mock
private MethodVisitor methodVisitor;
@Mock
private Implementation.Context implementationContext;
@Test
public void testAddition() throws Exception {
StackManipulation.Size size = stackManipulation.apply(methodVisitor, implementationContext);
assertThat(size.getMaximalSize(), is(0));
assertThat(size.getSizeImpact(), is(-stackSize.getSize()));
verify(methodVisitor).visitInsn(opcodes);
verifyNoMoreInteractions(methodVisitor);
verifyZeroInteractions(implementationContext);
}
}