package net.bytebuddy.implementation.bytecode.constant;
import net.bytebuddy.description.type.TypeDescription;
import net.bytebuddy.implementation.Implementation;
import net.bytebuddy.implementation.bytecode.StackManipulation;
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 ClassConstantPrimitiveTest {
private final TypeDescription primitiveType, wrapperType;
@Rule
public TestRule mockitoRule = new MockitoRule(this);
@Mock
private MethodVisitor methodVisitor;
@Mock
private Implementation.Context implementationContext;
public ClassConstantPrimitiveTest(Class<?> primitiveType, Class<?> wrapperType) {
this.primitiveType = new TypeDescription.ForLoadedType(primitiveType);
this.wrapperType = new TypeDescription.ForLoadedType(wrapperType);
}
@Parameterized.Parameters
public static Collection<Object[]> data() {
return Arrays.asList(new Object[][]{
{void.class, Void.class},
{boolean.class, Boolean.class},
{byte.class, Byte.class},
{short.class, Short.class},
{char.class, Character.class},
{int.class, Integer.class},
{long.class, Long.class},
{float.class, Float.class},
{double.class, Double.class}
});
}
@Test
public void testClassConstant() throws Exception {
StackManipulation stackManipulation = ClassConstant.of(primitiveType);
assertThat(stackManipulation.isValid(), is(true));
StackManipulation.Size size = stackManipulation.apply(methodVisitor, implementationContext);
assertThat(size.getSizeImpact(), is(1));
assertThat(size.getMaximalSize(), is(1));
verify(methodVisitor).visitFieldInsn(Opcodes.GETSTATIC, wrapperType.getInternalName(), "TYPE", "Ljava/lang/Class;");
verifyNoMoreInteractions(methodVisitor);
verifyZeroInteractions(implementationContext);
}
}