diff options
Diffstat (limited to 'src/test/java/org/apache/bcel/generic/FieldAnnotationsTestCase.java')
| -rw-r--r-- | src/test/java/org/apache/bcel/generic/FieldAnnotationsTestCase.java | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/src/test/java/org/apache/bcel/generic/FieldAnnotationsTestCase.java b/src/test/java/org/apache/bcel/generic/FieldAnnotationsTestCase.java new file mode 100644 index 00000000..306ecb2b --- /dev/null +++ b/src/test/java/org/apache/bcel/generic/FieldAnnotationsTestCase.java @@ -0,0 +1,167 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +package org.apache.commons.bcel6.generic; + +import java.io.File; +import java.io.IOException; + +import org.apache.commons.bcel6.AbstractTestCase; +import org.apache.commons.bcel6.classfile.AnnotationEntry; +import org.apache.commons.bcel6.classfile.ElementValuePair; +import org.apache.commons.bcel6.classfile.Field; +import org.apache.commons.bcel6.classfile.JavaClass; +import org.apache.commons.bcel6.util.SyntheticRepository; + +public class FieldAnnotationsTestCase extends AbstractTestCase +{ + /** + * Check field AnnotationEntrys are retrievable. + */ + public void testFieldAnnotationEntrys() throws ClassNotFoundException + { + JavaClass clazz = getTestClass(PACKAGE_BASE_NAME+".data.AnnotatedFields"); + // TODO L...;? + checkAnnotatedField(clazz, "i", "L"+PACKAGE_BASE_SIG+"/data/SimpleAnnotation;", "id", "1"); + checkAnnotatedField(clazz, "s", "L"+PACKAGE_BASE_SIG+"/data/SimpleAnnotation;", "id", "2"); + } + + /** + * Check field AnnotationEntrys (de)serialize ok. + */ + public void testFieldAnnotationEntrysReadWrite() throws ClassNotFoundException, + IOException + { + JavaClass clazz = getTestClass(PACKAGE_BASE_NAME+".data.AnnotatedFields"); + checkAnnotatedField(clazz, "i", "L"+PACKAGE_BASE_SIG+"/data/SimpleAnnotation;", "id", "1"); + checkAnnotatedField(clazz, "s", "L"+PACKAGE_BASE_SIG+"/data/SimpleAnnotation;", "id", "2"); + // Write it out + File tfile = createTestdataFile("AnnotatedFields.class"); + clazz.dump(tfile); + SyntheticRepository repos2 = createRepos("."); + repos2.loadClass("AnnotatedFields"); + checkAnnotatedField(clazz, "i", "L"+PACKAGE_BASE_SIG+"/data/SimpleAnnotation;", "id", "1"); + checkAnnotatedField(clazz, "s", "L"+PACKAGE_BASE_SIG+"/data/SimpleAnnotation;", "id", "2"); + assertTrue(tfile.delete()); + } + + /** + * Check we can load in a class, modify its field AnnotationEntrys, save it, + * reload it and everything is correct. + */ + public void testFieldAnnotationModification() + throws ClassNotFoundException + { + boolean dbg = false; + JavaClass clazz = getTestClass(PACKAGE_BASE_NAME+".data.AnnotatedFields"); + ClassGen clg = new ClassGen(clazz); + Field f = clg.getFields()[0]; + if (dbg) { + System.err.println("Field in freshly constructed class is: " + f); + } + if (dbg) { + System.err.println("AnnotationEntrys on field are: " + + dumpAnnotationEntries(f.getAnnotationEntries())); + } + AnnotationEntryGen fruitBasedAnnotationEntry = createFruitAnnotationEntry(clg + .getConstantPool(), "Tomato", false); + FieldGen fg = new FieldGen(f, clg.getConstantPool()); + if (dbg) { + System.err.println("Adding AnnotationEntry to the field"); + } + fg.addAnnotationEntry(fruitBasedAnnotationEntry); + if (dbg) { + System.err.println("FieldGen (mutable field) is " + fg); + } + if (dbg) { + System.err.println("with AnnotationEntrys: " + + dumpAnnotationEntries(fg.getAnnotationEntries())); + } + if (dbg) { + System.err + .println("Replacing original field with new field that has extra AnnotationEntry"); + } + clg.removeField(f); + clg.addField(fg.getField()); + f = clg.getFields()[1]; // there are two fields in the class, removing + // and readding has changed the order + // so this time index [1] is the 'int i' field + if (dbg) { + System.err.println("Field now looks like this: " + f); + } + if (dbg) { + System.err.println("With AnnotationEntrys: " + + dumpAnnotationEntries(f.getAnnotationEntries())); + } + assertTrue("Should be 2 AnnotationEntrys on this field, but there are " + + f.getAnnotationEntries().length, f.getAnnotationEntries().length == 2); + } + + // helper methods + public void checkAnnotatedField(final JavaClass clazz, final String fieldname, + final String AnnotationEntryName, final String AnnotationEntryElementName, + final String AnnotationEntryElementValue) + { + Field[] fields = clazz.getFields(); + for (Field f : fields) { + AnnotationEntry[] fieldAnnotationEntrys = f.getAnnotationEntries(); + if (f.getName().equals(fieldname)) + { + checkAnnotationEntry(fieldAnnotationEntrys[0], AnnotationEntryName, + AnnotationEntryElementName, AnnotationEntryElementValue); + } + } + } + + private void checkAnnotationEntry(final AnnotationEntry a, final String name, final String elementname, + final String elementvalue) + { + assertTrue("Expected AnnotationEntry to have name " + name + + " but it had name " + a.getAnnotationType(), a.getAnnotationType() + .equals(name)); + assertTrue("Expected AnnotationEntry to have one element but it had " + + a.getElementValuePairs().length, a.getElementValuePairs().length == 1); + ElementValuePair envp = a.getElementValuePairs()[0]; + assertTrue("Expected element name " + elementname + " but was " + + envp.getNameString(), elementname + .equals(envp.getNameString())); + assertTrue("Expected element value " + elementvalue + " but was " + + envp.getValue().stringifyValue(), elementvalue.equals(envp + .getValue().stringifyValue())); + } + + // helper methods + public void checkValue(final AnnotationEntry a, final String name, final String tostring) + { + for (int i = 0; i < a.getElementValuePairs().length; i++) + { + ElementValuePair element = a.getElementValuePairs()[i]; + if (element.getNameString().equals(name)) + { + if (!element.getValue().stringifyValue().equals(tostring)) + { + fail("Expected element " + name + " to have value " + + tostring + " but it had value " + + element.getValue().stringifyValue()); + } + return; + } + } + fail("Didnt find named element " + name); + } +} |