iSharkFly-Docs/java-tutorials
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

cleanup work

Browse Source
This commit is contained in:
Eugen Paraschiv
2018-03-04 17:39:09 +02:00
parent 14bf9a24d5
commit d2a2a65566
193 changed files with 1504 additions and 2388 deletions
Download Patch File Download Diff File Expand all files Collapse all files
libraries/src/test/java/com/baeldung/javassist/JavasisstUnitTest.java
+14 -19
View File
@@ -1,6 +1,5 @@
package com.baeldung.javassist;
import javassist.CannotCompileException;
import javassist.ClassPool;
import javassist.NotFoundException;
@@ -33,20 +32,20 @@ import static org.junit.Assert.assertTrue;
public class JavasisstUnitTest {
@Test
public void givenJavasisstAPI_whenConstructClass_thenGenerateAClassFile() throws CannotCompileException, IOException, ClassNotFoundException, IllegalAccessException, InstantiationException {
//given
// given
String classNameWithPackage = "com.baeldung.JavassistGeneratedClass";
ClassFile cf = new ClassFile(false, classNameWithPackage, null);
cf.setInterfaces(new String[]{"java.lang.Cloneable"});
cf.setInterfaces(new String[] { "java.lang.Cloneable" });
FieldInfo f = new FieldInfo(cf.getConstPool(), "id", "I");
f.setAccessFlags(AccessFlag.PUBLIC);
cf.addField(f);
//when
// when
String className = "JavassistGeneratedClass.class";
cf.write(new DataOutputStream(new FileOutputStream(className)));
//then
// then
ClassPool classPool = ClassPool.getDefault();
Field[] fields = classPool.makeClass(cf).toClass().getFields();
assertEquals(fields[0].getName(), "id");
@@ -57,14 +56,14 @@ public class JavasisstUnitTest {
@Test
public void givenJavaClass_whenLoadAtByJavassist_thenTraversWholeClass() throws NotFoundException, CannotCompileException, BadBytecode {
//given
// given
ClassPool cp = ClassPool.getDefault();
ClassFile cf = cp.get("com.baeldung.javasisst.Point").getClassFile();
MethodInfo minfo = cf.getMethod("move");
CodeAttribute ca = minfo.getCodeAttribute();
CodeIterator ci = ca.iterator();
//when
// when
List<String> operations = new LinkedList<>();
while (ci.hasNext()) {
int index = ci.next();
@@ -72,23 +71,21 @@ public class JavasisstUnitTest {
operations.add(Mnemonic.OPCODE[op]);
}
//then
assertEquals(operations,
Arrays.asList("aload_0", "iload_1", "putfield", "aload_0", "iload_2", "putfield", "return"));
// then
assertEquals(operations, Arrays.asList("aload_0", "iload_1", "putfield", "aload_0", "iload_2", "putfield", "return"));
}
@Test
public void givenTableOfInstructions_whenAddNewInstruction_thenShouldConstructProperSequence() throws NotFoundException, BadBytecode, CannotCompileException, IllegalAccessException, InstantiationException {
//given
// given
ClassFile cf = ClassPool.getDefault().get("com.baeldung.javasisst.ThreeDimensionalPoint").getClassFile();
//when
// when
FieldInfo f = new FieldInfo(cf.getConstPool(), "id", "I");
f.setAccessFlags(AccessFlag.PUBLIC);
cf.addField(f);
ClassPool classPool = ClassPool.getDefault();
Field[] fields = classPool.makeClass(cf).toClass().getFields();
List<String> fieldsList = Stream.of(fields).map(Field::getName).collect(Collectors.toList());
@@ -98,19 +95,19 @@ public class JavasisstUnitTest {
@Test
public void givenLoadedClass_whenAddConstructorToClass_shouldCreateClassWithConstructor() throws NotFoundException, CannotCompileException, BadBytecode {
//given
// given
ClassFile cf = ClassPool.getDefault().get("com.baeldung.javasisst.Point").getClassFile();
Bytecode code = new Bytecode(cf.getConstPool());
code.addAload(0);
code.addInvokespecial("java/lang/Object", MethodInfo.nameInit, "()V");
code.addReturn(null);
//when
// when
MethodInfo minfo = new MethodInfo(cf.getConstPool(), MethodInfo.nameInit, "()V");
minfo.setCodeAttribute(code.toCodeAttribute());
cf.addMethod(minfo);
//then
// then
CodeIterator ci = code.toCodeAttribute().iterator();
List<String> operations = new LinkedList<>();
while (ci.hasNext()) {
@@ -119,9 +116,7 @@ public class JavasisstUnitTest {
operations.add(Mnemonic.OPCODE[op]);
}
assertEquals(operations,
Arrays.asList("aload_0", "invokespecial", "return"));
assertEquals(operations, Arrays.asList("aload_0", "invokespecial", "return"));
}
}