Android example source code file (AsmAnalyzerTest.java)

This example Android source code file (AsmAnalyzerTest.java) is included in the DevDaily.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Android by Example" ^TM.

Java - Android tags/keywords

after, arraylist, asmanalyzer, classreader, derivingclass, io, ioexception, layoutparams, logabortexception, marginlayoutparams, mocklog, net, network, no, string, test, treemap, util

The AsmAnalyzerTest.java Android example source code

/*
 * Copyright (C) 2008 The Android Open Source Project
 *
 * Licensed 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 com.android.tools.layoutlib.create;

import static org.junit.Assert.assertArrayEquals;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;

import com.android.tools.layoutlib.create.AsmAnalyzer.DependencyVisitor;
import com.android.tools.layoutlib.create.LogTest.MockLog;

import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.objectweb.asm.ClassReader;

import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Map;
import java.util.TreeMap;

/**
 * Unit tests for some methods of {@link AsmAnalyzer}.
 */
public class AsmAnalyzerTest {

    private MockLog mLog;
    private ArrayList<String> mOsJarPath;
    private AsmAnalyzer mAa;

    @Before
    public void setUp() throws Exception {
        mLog = new LogTest.MockLog();
        URL url = this.getClass().getClassLoader().getResource("data/mock_android.jar");
        
        mOsJarPath = new ArrayList<String>();
        mOsJarPath.add(url.getFile());

        mAa = new AsmAnalyzer(mLog, mOsJarPath, null /* gen */,
                null /* deriveFrom */, null /* includeGlobs */ );
    }

    @After
    public void tearDown() throws Exception {
    }

    @Test
    public void testParseZip() throws IOException {
        Map<String, ClassReader> map = mAa.parseZip(mOsJarPath);

        assertArrayEquals(new String[] {
                "mock_android.dummy.InnerTest",
                "mock_android.dummy.InnerTest$DerivingClass",
                "mock_android.dummy.InnerTest$MyGenerics1",
                "mock_android.dummy.InnerTest$MyIntEnum",
                "mock_android.dummy.InnerTest$MyStaticInnerClass",   
                "mock_android.dummy.InnerTest$NotStaticInner1", 
                "mock_android.dummy.InnerTest$NotStaticInner2",  
                "mock_android.view.View",
                "mock_android.view.ViewGroup",
                "mock_android.view.ViewGroup$LayoutParams",
                "mock_android.view.ViewGroup$MarginLayoutParams",
                "mock_android.widget.LinearLayout",
                "mock_android.widget.LinearLayout$LayoutParams",
                "mock_android.widget.TableLayout",
                "mock_android.widget.TableLayout$LayoutParams"
            },
            map.keySet().toArray());
    }
    
    @Test
    public void testFindClass() throws IOException, LogAbortException {
        Map<String, ClassReader> zipClasses = mAa.parseZip(mOsJarPath);
        TreeMap<String, ClassReader> found = new TreeMap();

        ClassReader cr = mAa.findClass("mock_android.view.ViewGroup$LayoutParams",
                zipClasses, found);
        
        assertNotNull(cr);
        assertEquals("mock_android/view/ViewGroup$LayoutParams", cr.getClassName());
        assertArrayEquals(new String[] { "mock_android.view.ViewGroup$LayoutParams" },
                found.keySet().toArray());
        assertArrayEquals(new ClassReader[] { cr }, found.values().toArray());
    }

    @Test
    public void testFindGlobs() throws IOException, LogAbortException {
        Map<String, ClassReader> zipClasses = mAa.parseZip(mOsJarPath);
        TreeMap<String, ClassReader> found = new TreeMap();

        // this matches classes, a package match returns nothing
        found.clear();
        mAa.findGlobs("mock_android.view", zipClasses, found);

        assertArrayEquals(new String[] { },
            found.keySet().toArray());

        // a complex glob search. * is a search pattern that matches names, not dots
        mAa.findGlobs("mock_android.*.*Group$*Layout*", zipClasses, found);

        assertArrayEquals(new String[] {
                "mock_android.view.ViewGroup$LayoutParams",
                "mock_android.view.ViewGroup$MarginLayoutParams"
            },
            found.keySet().toArray());

        // a complex glob search. ** is a search pattern that matches names including dots
        mAa.findGlobs("mock_android.**Group*", zipClasses, found);

        assertArrayEquals(new String[] {
                "mock_android.view.ViewGroup",
                "mock_android.view.ViewGroup$LayoutParams",
                "mock_android.view.ViewGroup$MarginLayoutParams"
            },
            found.keySet().toArray());

        // matches a single class
        found.clear();
        mAa.findGlobs("mock_android.view.View", zipClasses, found);

        assertArrayEquals(new String[] {
                "mock_android.view.View"
            },
            found.keySet().toArray());

        // matches everyting inside the given package but not sub-packages
        found.clear();
        mAa.findGlobs("mock_android.view.*", zipClasses, found);

        assertArrayEquals(new String[] {
                "mock_android.view.View",
                "mock_android.view.ViewGroup",
                "mock_android.view.ViewGroup$LayoutParams",
                "mock_android.view.ViewGroup$MarginLayoutParams"
            },
            found.keySet().toArray());

        for (String key : found.keySet()) {
            ClassReader value = found.get(key);
            assertNotNull("No value for " + key, value);
            assertEquals(key, AsmAnalyzer.classReaderToClassName(value));
        }
    }

    @Test
    public void testFindClassesDerivingFrom() throws LogAbortException, IOException {
        Map<String, ClassReader> zipClasses = mAa.parseZip(mOsJarPath);
        TreeMap<String, ClassReader> found = new TreeMap();

        mAa.findClassesDerivingFrom("mock_android.view.View", zipClasses, found);

        assertArrayEquals(new String[] {
                "mock_android.view.View",
                "mock_android.view.ViewGroup",
                "mock_android.widget.LinearLayout",
                "mock_android.widget.TableLayout",
            },
            found.keySet().toArray());
        
        for (String key : found.keySet()) {
            ClassReader value = found.get(key);
            assertNotNull("No value for " + key, value);
            assertEquals(key, AsmAnalyzer.classReaderToClassName(value));
        }
    }
    
    @Test
    public void testDependencyVisitor() throws IOException, LogAbortException {
        Map<String, ClassReader> zipClasses = mAa.parseZip(mOsJarPath);
        TreeMap<String, ClassReader> keep = new TreeMap();
        TreeMap<String, ClassReader> new_keep = new TreeMap();
        TreeMap<String, ClassReader> in_deps = new TreeMap();
        TreeMap<String, ClassReader> out_deps = new TreeMap();

        ClassReader cr = mAa.findClass("mock_android.widget.TableLayout", zipClasses, keep);
        DependencyVisitor visitor = mAa.getVisitor(zipClasses, keep, new_keep, in_deps, out_deps);
        
        // get first level dependencies
        cr.accept(visitor, 0 /* flags */);

        assertArrayEquals(new String[] {
                "mock_android.view.ViewGroup",
                "mock_android.widget.TableLayout$LayoutParams",
            },
            out_deps.keySet().toArray());

        in_deps.putAll(out_deps);
        out_deps.clear();

        // get second level dependencies
        for (ClassReader cr2 : in_deps.values()) {
            cr2.accept(visitor, 0 /* flags */);
        }

        assertArrayEquals(new String[] {
                "mock_android.view.View",
                "mock_android.view.ViewGroup$LayoutParams",
                "mock_android.view.ViewGroup$MarginLayoutParams",
            },
            out_deps.keySet().toArray());

        in_deps.putAll(out_deps);
        out_deps.clear();

        // get third level dependencies (there are none)
        for (ClassReader cr2 : in_deps.values()) {
            cr2.accept(visitor, 0 /* flags */);
        }

        assertArrayEquals(new String[] { }, out_deps.keySet().toArray());
    }
}