package net.bytebuddy.asm;
import net.bytebuddy.ClassFileVersion;
import net.bytebuddy.description.field.FieldDescription;
import net.bytebuddy.description.field.FieldList;
import net.bytebuddy.description.method.MethodDescription;
import net.bytebuddy.description.method.MethodList;
import net.bytebuddy.description.type.TypeDescription;
import net.bytebuddy.implementation.Implementation;
import net.bytebuddy.pool.TypePool;
import net.bytebuddy.test.utility.MockitoRule;
import net.bytebuddy.test.utility.ObjectPropertyAssertion;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.TestRule;
import org.mockito.Mock;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.Type;
import static org.hamcrest.CoreMatchers.is;
import static org.hamcrest.CoreMatchers.not;
import static org.hamcrest.MatcherAssert.assertThat;
import static org.mockito.Mockito.*;
public class TypeConstantAdjustmentTest {
private static final int FOOBAR = 42, IGNORED = -1;
private static final String FOO = "foo", BAR = "bar", QUX = "qux", BAZ = "baz";
@Rule
public TestRule mockitoRule = new MockitoRule(this);
@Mock
private ClassVisitor classVisitor;
@Mock
private MethodVisitor methodVisitor;
@Before
public void setUp() throws Exception {
when(classVisitor.visitMethod(anyInt(), any(String.class), any(String.class), any(String.class), any(String[].class)))
.thenReturn(methodVisitor);
}
@Test
public void testWriterFlags() throws Exception {
assertThat(TypeConstantAdjustment.INSTANCE.mergeWriter(FOOBAR), is(FOOBAR));
}
@Test
public void testReaderFlags() throws Exception {
assertThat(TypeConstantAdjustment.INSTANCE.mergeReader(FOOBAR), is(FOOBAR));
}
@Test
public void testInstrumentationModernClassFile() throws Exception {
ClassVisitor classVisitor = TypeConstantAdjustment.INSTANCE.wrap(mock(TypeDescription.class),
this.classVisitor,
mock(Implementation.Context.class),
mock(TypePool.class),
new FieldList.Empty<FieldDescription.InDefinedShape>(),
new MethodList.Empty<MethodDescription>(),
IGNORED,
IGNORED);
classVisitor.visit(ClassFileVersion.JAVA_V5.getMinorMajorVersion(), FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
assertThat(classVisitor.visitMethod(FOOBAR, FOO, BAR, QUX, new String[]{BAZ}), is(methodVisitor));
verify(this.classVisitor).visit(ClassFileVersion.JAVA_V5.getMinorMajorVersion(), FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
verify(this.classVisitor).visitMethod(FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
verifyNoMoreInteractions(this.classVisitor);
verifyZeroInteractions(methodVisitor);
}
@Test
public void testInstrumentationLegacyClassFileObjectType() throws Exception {
ClassVisitor classVisitor = TypeConstantAdjustment.INSTANCE.wrap(mock(TypeDescription.class),
this.classVisitor,
mock(Implementation.Context.class),
mock(TypePool.class),
new FieldList.Empty<FieldDescription.InDefinedShape>(),
new MethodList.Empty<MethodDescription>(),
IGNORED,
IGNORED);
classVisitor.visit(ClassFileVersion.JAVA_V4.getMinorMajorVersion(), FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
MethodVisitor methodVisitor = classVisitor.visitMethod(FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
assertThat(methodVisitor, not(this.methodVisitor));
methodVisitor.visitLdcInsn(Type.getType(Object.class));
verify(this.classVisitor).visit(ClassFileVersion.JAVA_V4.getMinorMajorVersion(), FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
verify(this.classVisitor).visitMethod(FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
verifyNoMoreInteractions(this.classVisitor);
verify(this.methodVisitor).visitLdcInsn(Type.getType(Object.class).getClassName());
verify(this.methodVisitor).visitMethodInsn(Opcodes.INVOKESTATIC,
Type.getType(Class.class).getInternalName(),
"forName",
Type.getType(Class.class.getDeclaredMethod("forName", String.class)).getDescriptor(),
false);
verifyNoMoreInteractions(this.methodVisitor);
}
@Test
public void testInstrumentationLegacyClassFileArrayType() throws Exception {
ClassVisitor classVisitor = TypeConstantAdjustment.INSTANCE.wrap(mock(TypeDescription.class),
this.classVisitor,
mock(Implementation.Context.class),
mock(TypePool.class),
new FieldList.Empty<FieldDescription.InDefinedShape>(),
new MethodList.Empty<MethodDescription>(),
IGNORED,
IGNORED);
classVisitor.visit(ClassFileVersion.JAVA_V4.getMinorMajorVersion(), FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
MethodVisitor methodVisitor = classVisitor.visitMethod(FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
assertThat(methodVisitor, not(this.methodVisitor));
methodVisitor.visitLdcInsn(Type.getType(Object[].class));
verify(this.classVisitor).visit(ClassFileVersion.JAVA_V4.getMinorMajorVersion(), FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
verify(this.classVisitor).visitMethod(FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
verifyNoMoreInteractions(this.classVisitor);
verify(this.methodVisitor).visitLdcInsn(Type.getType(Object[].class).getInternalName().replace('/', '.'));
verify(this.methodVisitor).visitMethodInsn(Opcodes.INVOKESTATIC,
Type.getType(Class.class).getInternalName(),
"forName",
Type.getType(Class.class.getDeclaredMethod("forName", String.class)).getDescriptor(),
false);
verifyNoMoreInteractions(this.methodVisitor);
}
@Test
public void testInstrumentationLegacyClassOtherType() throws Exception {
ClassVisitor classVisitor = TypeConstantAdjustment.INSTANCE.wrap(mock(TypeDescription.class),
this.classVisitor,
mock(Implementation.Context.class),
mock(TypePool.class),
new FieldList.Empty<FieldDescription.InDefinedShape>(),
new MethodList.Empty<MethodDescription>(),
IGNORED,
IGNORED);
classVisitor.visit(ClassFileVersion.JAVA_V4.getMinorMajorVersion(), FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
MethodVisitor methodVisitor = classVisitor.visitMethod(FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
assertThat(methodVisitor, not(this.methodVisitor));
methodVisitor.visitLdcInsn(FOO);
verify(this.classVisitor).visit(ClassFileVersion.JAVA_V4.getMinorMajorVersion(), FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
verify(this.classVisitor).visitMethod(FOOBAR, FOO, BAR, QUX, new String[]{BAZ});
verifyNoMoreInteractions(this.classVisitor);
verify(this.methodVisitor).visitLdcInsn(FOO);
verifyNoMoreInteractions(this.methodVisitor);
}
@Test
public void testObjectProperties() throws Exception {
ObjectPropertyAssertion.of(TypeConstantAdjustment.class).apply();
}
}