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Add unit test for ZipFile class

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MPeter 2022-09-02 21:57:43 +02:00
parent 15803eedea
commit e75f80c3f9
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app/src/test/java/nodomain/freeyourgadget/gadgetbridge/test/ZipFileTest.java Normal file
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package nodomain.freeyourgadget.gadgetbridge.test;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.junit.Assert;
import org.junit.Test;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.nio.charset.StandardCharsets;
import java.util.zip.ZipEntry;
import java.util.zip.ZipOutputStream;
import nodomain.freeyourgadget.gadgetbridge.util.ZipFile;
import nodomain.freeyourgadget.gadgetbridge.util.ZipFileException;
public class ZipFileTest extends TestBase {
private static final String TEST_FILE_NAME = "manifest.json";
private static final String TEST_NESTED_FILE_NAME = "directory/manifest.json";
private static final String TEST_FILE_CONTENTS_1 = "{ \"mykey\": \"myvalue\", \"myarr\": [0, 1, 2, 3] }";
private static final String TEST_FILE_CONTENTS_2 = "{\n" +
" \"manifest\": {\n" +
" \"application\": {\n" +
" \"bin_file\": \"pinetime-mcuboot-app-image-1.10.0.bin\",\n" +
" \"dat_file\": \"pinetime-mcuboot-app-image-1.10.0.dat\",\n" +
" \"init_packet_data\": {\n" +
" \"application_version\": 4294967295,\n" +
" \"device_revision\": 65535,\n" +
" \"device_type\": 82,\n" +
" \"firmware_crc16\": 21770,\n" +
" \"softdevice_req\": [\n" +
" 65534\n" +
" ]\n" +
" }\n" +
" },\n" +
" \"dfu_version\": 0.5\n" +
" }\n" +
"}";
@Test
public void testZipSize1() throws IOException, ZipFileException {
final String contents = TEST_FILE_CONTENTS_1;
byte[] zipArchive = createZipArchive(TEST_FILE_NAME, contents);
ZipFile zipFile = new ZipFile(zipArchive);
String readContents = new String(zipFile.getFileFromZip(TEST_FILE_NAME));
Assert.assertEquals(contents, readContents);
}
@Test
public void testZipSize2() throws IOException, ZipFileException {
final String contents = TEST_FILE_CONTENTS_2;
byte[] zipArchive = createZipArchive(TEST_FILE_NAME, contents);
ZipFile zipFile = new ZipFile(zipArchive);
String readContents = new String(zipFile.getFileFromZip(TEST_FILE_NAME));
Assert.assertEquals(contents, readContents);
}
@Test
public void testZipSize3() throws IOException, ZipFileException, JSONException {
String contents = makeLargeJsonObject(new JSONObject(TEST_FILE_CONTENTS_2), 4).toString(4);
byte[] zipArchive = createZipArchive(TEST_FILE_NAME, contents);
ZipFile zipFile = new ZipFile(zipArchive);
String readContents = new String(zipFile.getFileFromZip(TEST_FILE_NAME));
Assert.assertEquals(contents, readContents);
}
@Test
public void testZipSize4() throws IOException, ZipFileException, JSONException {
String contents = makeLargeJsonObject(new JSONObject(TEST_FILE_CONTENTS_2), 32).toString(4);
byte[] zipArchive = createZipArchive(TEST_FILE_NAME, contents);
ZipFile zipFile = new ZipFile(zipArchive);
String readContents = new String(zipFile.getFileFromZip(TEST_FILE_NAME));
Assert.assertEquals(contents, readContents);
}
@Test
public void testZipFileInDir() throws IOException, ZipFileException {
String contents = TEST_FILE_CONTENTS_1;
byte[] zipArchive = createZipArchive(TEST_NESTED_FILE_NAME, contents);
ZipFile zipFile = new ZipFile(zipArchive);
String readContents = new String(zipFile.getFileFromZip(TEST_NESTED_FILE_NAME));
Assert.assertEquals(contents, readContents);
}
@Test
public void testZipFilesUnorderedAccess() throws IOException, ZipFileException {
String contents1 = TEST_FILE_CONTENTS_1;
String contents2 = TEST_FILE_CONTENTS_2;
String contents3 = "zbuMyWvIxeKgcWnsSYOd8CTLgjc9x7ti21OlLlGduMJVXlKc835WEUKJ3xR6GDA5d0tHSXnYxZkDlznFQVyueHhwYywsMO9PlkJqjOCA2Mn8uTuTliIKUNPBraFipOodb6rW31HdKLOd7gmniLF5mvdRPHOUKIXSMciqogOsZnvGXylMx6TegesGBWAeHFhTSQ5xXOrOEUsDHK78M3A0yFXzLE0XgwI90Tl87OHyWfE0y0yINv5PjxgGCLUB7mHYFpgPW1C5yyIkb2JA6CePE3hHv369khwmLumW7P9ErZhzdGgeskz6Os0p5HMrTFuySc0PWxsIfru1HldIH9TZTSMCbd91G5jCCikyx2zrzDKaasuQZyBGZcMjr1zcCLpPQiKT7ELSoUBCKhiFODxbFA06MC5bLXh2WvyP8W2kVxT2T4AnDX6pwf1BKs4nbHpAjvMmHrzlhQp7Q6VWBEiniY5M9QW4ExRcMGIBYXvY7vu5p";
final ByteArrayOutputStream baos = new ByteArrayOutputStream();
final ZipOutputStream zipWriteStream = new ZipOutputStream(baos);
writeFileToZip(contents1, "file1", zipWriteStream);
writeFileToZip(contents2, "file2", zipWriteStream);
writeFileToZip(contents3, "file3", zipWriteStream);
zipWriteStream.close();
ZipFile zipFile = new ZipFile(baos.toByteArray());
String readContents2 = new String(zipFile.getFileFromZip("file2"));
String readContents1 = new String(zipFile.getFileFromZip("file1"));
String readContents3 = new String(zipFile.getFileFromZip("file3"));
Assert.assertEquals(contents1, readContents1);
Assert.assertEquals(contents2, readContents2);
Assert.assertEquals(contents3, readContents3);
}
/**
* Create a ZIP archive with a single text file.
* The archive will not be saved to a file, it is kept in memory.
*
* @return the ZIP archive
*/
private byte[] createZipArchive(String path, String fileContents) throws IOException {
final ByteArrayOutputStream baos = new ByteArrayOutputStream();
final ZipOutputStream zipFile = new ZipOutputStream(baos);
writeFileToZip(fileContents, path, zipFile);
zipFile.close();
return baos.toByteArray();
}
/**
* Make a larger JSON object for testing purposes, based on a preexisting JSON object.
*/
private JSONObject makeLargeJsonObject(JSONObject base, int repetitions) throws JSONException {
JSONObject manifestObj = base.getJSONObject("manifest");
JSONArray array = new JSONArray();
for (int i = 0; i < repetitions; i++) {
array.put(manifestObj);
}
return base.put("array", array);
}
/**
* Write given data to file at given path into an already opened ZIP archive.
* Allows to create an archive with multiple files.
*/
private void writeFileToZip(String fileContents, String path, ZipOutputStream zipFile) throws IOException {
byte[] data = fileContents.getBytes(StandardCharsets.UTF_8);
ZipEntry zipEntry = new ZipEntry(path);
zipFile.putNextEntry(zipEntry);
zipFile.write(data, 0, fileContents.length());
zipFile.closeEntry();
}
}