1 /*

     2  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 import com.sun.tools.classfile.Attribute;

    25 import com.sun.tools.classfile.ClassFile;

    26 import com.sun.tools.classfile.SourceFile_attribute;

    27 

    28 import java.util.ArrayList;

    29 import java.util.List;

    30 import java.util.Map;

    31 import javax.tools.JavaFileObject;

    32 

    33 public class SourceFileTestBase extends TestBase {

    34 

    35     protected void test(Class<?> classToTest, String fileName) throws Exception {

    36         assertAttributePresent(ClassFile.read(getClassFile(classToTest)), fileName);

    37     }

    38 

    39     protected void test(String classToTest, String fileName) throws Exception {

    40         assertAttributePresent(ClassFile.read(getClassFile(classToTest + ".class")), fileName);

    41     }

    42 

    43     /**

    44      * Compile sourceCode and for all "classesToTest" checks SourceFile attribute.

    45      */

    46     protected void compileAndTest(String sourceCode, String... classesToTest) throws Exception {

    47 

    48         Map<String, ? extends JavaFileObject> classes = compile(sourceCode);

    49         String fileName = ToolBox.getJavaFileNameFromSource(sourceCode);

    50         for (String className : classesToTest) {

    51             assertAttributePresent(ClassFile.read(classes.get(className).openInputStream()), fileName);

    52         }

    53     }

    54 

    55     private void assertAttributePresent(ClassFile classFile, String fileName) throws Exception {

    56 

    57         //We need to count attributes with the same names because there is no appropriate API in the ClassFile.

    58 

    59         List<SourceFile_attribute> sourceFileAttributes = new ArrayList<>();

    60         for (Attribute a : classFile.attributes.attrs) {

    61             if (Attribute.SourceFile.equals(a.getName(classFile.constant_pool))) {

    62                 sourceFileAttributes.add((SourceFile_attribute) a);

    63             }

    64         }

    65 

    66         assertEquals(sourceFileAttributes.size(), 1, "Should be the only SourceFile attribute");

    67 

    68         SourceFile_attribute attribute = sourceFileAttributes.get(0);

    69 

    70         assertEquals(classFile.constant_pool.getUTF8Info(attribute.attribute_name_index).value,

    71                 Attribute.SourceFile, "Incorrect attribute name");

    72         assertEquals(classFile.constant_pool.getUTF8Info(attribute.sourcefile_index).value, fileName,

    73                 "Incorrect source file name");

    74         assertEquals(attribute.attribute_length, 2, "Incorrect attribute length");

    75     }

    76 }