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Testing AndResGuard Resource Remapping in Apktool

This test suite validates the AndResGuard functionality in Apktool, focusing on the decoding of APK resources and resource folder remapping. The tests ensure proper handling of AndResGuard-protected applications during the decoding process.

Test Coverage Overview

The test suite provides comprehensive coverage of AndResGuard resource decoding scenarios.

Tests resource remapping in normal decode mode
Verifies raw mode decoding behavior
Validates file path transformations for protected resources
Ensures proper handling of mipmap resources

Implementation Analysis

The testing approach utilizes JUnit framework with a structured setup using @BeforeClass for test resource preparation. The implementation leverages ExtFile for file handling and ApkDecoder for processing APK files.

Uses inheritance from BaseTest for common functionality
Implements separate test cases for normal and raw decode modes
Employs TestUtils for resource management

Technical Details

JUnit testing framework
ApkDecoder for APK processing
ExtFile for extended file operations
TestUtils for resource management
Config class for decode settings
BrutException handling

Best Practices Demonstrated

The test suite demonstrates several testing best practices including proper test isolation and resource cleanup.

Clear test method naming conventions
Proper test setup and resource management
Specific assertion checks
Separate test cases for different decode modes
Effective use of configuration options

ibotpeaches/apktool

brut.apktool/apktool-lib/src/test/java/brut/androlib/decode/AndResGuardTest.java

            
/*
 *  Copyright (C) 2010 Ryszard Wiśniewski <[email protected]>
 *  Copyright (C) 2010 Connor Tumbleson <[email protected]>
 *
 *  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
 *
 *       https://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 brut.androlib.decode;

import brut.androlib.ApkDecoder;
import brut.androlib.BaseTest;
import brut.androlib.Config;
import brut.androlib.TestUtils;
import brut.directory.ExtFile;
import brut.common.BrutException;

import java.io.File;

import org.junit.*;
import static org.junit.Assert.*;

public class AndResGuardTest extends BaseTest {
    private static final String TEST_APK = "issue1170.apk";

    @BeforeClass
    public static void beforeClass() throws Exception {
        TestUtils.copyResourceDir(AndResGuardTest.class, "decode/issue1170", sTmpDir);
    }

    @Test
    public void checkifAndResDecodeRemapsRFolder() throws BrutException {
        ExtFile testApk = new ExtFile(sTmpDir, TEST_APK);
        ExtFile testDir = new ExtFile(testApk + ".out");
        new ApkDecoder(testApk, sConfig).decode(testDir);

        assertTrue(new File(testDir, "res/mipmap-hdpi-v4/a.png").isFile());
    }

    @Test
    public void checkIfAndResDecodeRemapsRFolderInRawMode() throws BrutException {
        sConfig.setForceDelete(true);
        sConfig.setDecodeResources(Config.DECODE_RESOURCES_NONE);

        ExtFile testApk = new ExtFile(sTmpDir, TEST_APK);
        ExtFile testDir = new ExtFile(testApk + ".raw.out");
        new ApkDecoder(testApk, sConfig).decode(testDir);

        assertTrue(new File(testDir, "r/a/a.png").isFile());
    }
}