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/*
* Copyright (C) 2010 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.tradefed.util;
import com.android.tradefed.log.LogUtil.CLog;
import junit.framework.TestCase;
import java.io.ByteArrayInputStream;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.file.attribute.PosixFilePermission;
import java.util.Set;
/**
* Unit tests for {@link FileUtil}
*/
public class FileUtilTest extends TestCase {
@Override
protected void setUp() throws Exception {
super.setUp();
FileUtil.setChmodBinary("chmod");
}
/**
* test {@link FileUtil#getExtension(String)}
*/
public void testGetExtension() {
assertEquals("", FileUtil.getExtension("filewithoutext"));
assertEquals(".txt", FileUtil.getExtension("file.txt"));
assertEquals(".txt", FileUtil.getExtension("foo.file.txt"));
}
/**
* test {@link FileUtil#chmodGroupRW(File)} on a system that supports 'chmod'
*/
public void testChmodGroupRW() throws IOException {
File testFile = null;
try {
if (!FileUtil.chmodExists()) {
CLog.d("Chmod not available, skipping the test");
return;
}
testFile = FileUtil.createTempFile("testChmodRW", ".txt");
assertTrue(FileUtil.chmodGroupRW(testFile));
assertTrue(testFile.canRead());
assertTrue(testFile.canWrite());
assertFalse(testFile.canExecute());
} finally {
FileUtil.deleteFile(testFile);
}
}
/**
* test {@link FileUtil#chmodGroupRW(File)} on a system that does not supports 'chmod'.
* File permission should still be set with the fallback.
*/
public void testChmodGroupRW_noChmod() throws IOException {
File testFile = null;
FileUtil.setChmodBinary("fake_not_existing_chmod");
try {
testFile = FileUtil.createTempFile("testChmodRW", ".txt");
assertTrue(FileUtil.chmodGroupRW(testFile));
assertTrue(testFile.canRead());
assertTrue(testFile.canWrite());
assertFalse(testFile.canExecute());
} finally {
FileUtil.deleteFile(testFile);
}
}
/**
* test {@link FileUtil#chmodGroupRWX(File)} on a system that supports 'chmod'
*/
public void testChmodGroupRWX() throws IOException {
File testFile = null;
try {
if (!FileUtil.chmodExists()) {
CLog.d("Chmod not available, skipping the test");
return;
}
testFile = FileUtil.createTempFile("testChmodRWX", ".txt");
assertTrue(FileUtil.chmodGroupRWX(testFile));
assertTrue(testFile.canRead());
assertTrue(testFile.canWrite());
assertTrue(testFile.canExecute());
} finally {
FileUtil.deleteFile(testFile);
}
}
/**
* test {@link FileUtil#chmodGroupRWX(File)} on a system that does not supports 'chmod'.
* File permission should still be set with the fallback.
*/
public void testChmodGroupRWX_noChmod() throws IOException {
File testFile = null;
FileUtil.setChmodBinary("fake_not_existing_chmod");
try {
testFile = FileUtil.createTempFile("testChmodRWX", ".txt");
assertTrue(FileUtil.chmodGroupRWX(testFile));
assertTrue(testFile.canRead());
assertTrue(testFile.canWrite());
assertTrue(testFile.canExecute());
} finally {
FileUtil.deleteFile(testFile);
}
}
/**
* test {@link FileUtil#createTempFile(String, String)} with a very long file name. FileSystem
* should not throw any exception.
*/
public void testCreateTempFile_filenameTooLong() throws IOException {
File testFile = null;
try {
final String prefix = "logcat-android.support.v7.widget.GridLayoutManagerWrapContent"
+ "WithAspectRatioTest_testAllChildrenWrapContentInOtherDirection_"
+ "WrapContentConfig_unlimitedWidth=true_ unlimitedHeight=true_padding="
+ "Rect(0_0-0_0)_Config_mSpanCount=3_ mOrientation=v_mItemCount=1000_"
+ "mReverseLayout=false_ 8__";
testFile = FileUtil.createTempFile(prefix, ".gz");
assertTrue(testFile.getName().length() <= FileUtil.FILESYSTEM_FILENAME_MAX_LENGTH);
} finally {
FileUtil.deleteFile(testFile);
}
}
/**
* test {@link FileUtil#createTempFile(String, String)} with a very long file name. FileSystem
* should not throw any exception.
* If both suffix is smaller than overflow length, it will be completely truncated, and prefix
* will truncate the remaining.
*/
public void testCreateTempFile_filenameTooLongEdge() throws IOException {
File testFile = null;
try {
final String prefix = "logcat-android.support.v7.widget.GridLayoutManagerWrapContent"
+ "WithAspectRatioTest_testAllChildrenWrapContentInOtherDirection_"
+ "WrapContentConfig_unlimitedWidth=true_ unlimitedHeight=true_padding="
+ "Rect(0_0-0_0)_Config_mSpanCount=3_ mOrientation";
final String suffix = "logcat-android.support.v7.widget.GridLayoutManagerWrapContent"
+ "WithAspectRatioTest_testAllChildrenWrapContentInOtherDirection_"
+ "WrapContentConfig_unlimitedWidth=true_ unlimitedHeight=true_padding="
+ "Rect(0_0-0_0)_Config_mSpanCount=3_ mOrientat";
testFile = FileUtil.createTempFile(prefix, suffix);
assertTrue(testFile.getName().length() <= FileUtil.FILESYSTEM_FILENAME_MAX_LENGTH);
} finally {
FileUtil.deleteFile(testFile);
}
}
/**
* Test {@link FileUtil#writeToFile(InputStream, File, boolean)} succeeds overwriting an
* existent file.
*/
public void testWriteToFile_overwrites_exists() throws IOException {
File testFile = null;
try {
testFile = File.createTempFile("doesnotmatter", ".txt");
FileUtil.writeToFile(new ByteArrayInputStream("write1".getBytes()), testFile, false);
assertEquals(FileUtil.readStringFromFile(testFile), "write1");
FileUtil.writeToFile(new ByteArrayInputStream("write2".getBytes()), testFile, false);
assertEquals(FileUtil.readStringFromFile(testFile), "write2");
} finally {
FileUtil.deleteFile(testFile);
}
}
/**
* Test {@link FileUtil#writeToFile(InputStream, File, boolean)} succeeds appending to an
* existent file.
*/
public void testWriteToFile_appends_exists() throws IOException {
File testFile = null;
try {
testFile = File.createTempFile("doesnotmatter", ".txt");
FileUtil.writeToFile(new ByteArrayInputStream("write1".getBytes()), testFile, true);
FileUtil.writeToFile(new ByteArrayInputStream("write2".getBytes()), testFile, true);
assertEquals(FileUtil.readStringFromFile(testFile), "write1write2");
} finally {
FileUtil.deleteFile(testFile);
}
}
/**
* Test {@link FileUtil#writeToFile(InputStream, File, boolean)} succeeds writing to an
* uncreated file.
*/
public void testWriteToFile_overwrites_doesNotExist() throws IOException {
File testFile = null;
try {
testFile = new File("nonexistant");
FileUtil.writeToFile(new ByteArrayInputStream("write1".getBytes()), testFile, false);
assertEquals(FileUtil.readStringFromFile(testFile), "write1");
} finally {
FileUtil.deleteFile(testFile);
}
}
/**
* Test {@link FileUtil#writeToFile(InputStream, File, boolean)} succeeds appending to an
* uncreated file.
*/
public void testWriteToFile_appends_doesNotExist() throws IOException {
File testFile = null;
try {
testFile = new File("nonexistant");
FileUtil.writeToFile(new ByteArrayInputStream("write1".getBytes()), testFile, true);
assertEquals(FileUtil.readStringFromFile(testFile), "write1");
} finally {
FileUtil.deleteFile(testFile);
}
}
/**
* Test {@link FileUtil#writeToFile(InputStream, File)} succeeds overwriting to a file.
*/
public void testWriteToFile_stream_overwrites() throws IOException {
File testFile = null;
try {
testFile = File.createTempFile("doesnotmatter", ".txt");
FileUtil.writeToFile(new ByteArrayInputStream("write1".getBytes()), testFile);
assertEquals(FileUtil.readStringFromFile(testFile), "write1");
FileUtil.writeToFile(new ByteArrayInputStream("write2".getBytes()), testFile);
assertEquals(FileUtil.readStringFromFile(testFile), "write2");
} finally {
FileUtil.deleteFile(testFile);
}
}
/**
* Test {@link FileUtil#writeToFile(String, File, boolean)} succeeds overwriting to a file.
*/
public void testWriteToFile_string_overwrites() throws IOException {
File testFile = null;
try {
testFile = File.createTempFile("doesnotmatter", ".txt");
FileUtil.writeToFile("write1", testFile, false);
assertEquals(FileUtil.readStringFromFile(testFile), "write1");
FileUtil.writeToFile("write2", testFile, false);
assertEquals(FileUtil.readStringFromFile(testFile), "write2");
} finally {
FileUtil.deleteFile(testFile);
}
}
/**
* Test {@link FileUtil#writeToFile(String, File, boolean)} succeeds appending to a file.
*/
public void testWriteToFile_string_appends() throws IOException {
File testFile = null;
try {
testFile = File.createTempFile("doesnotmatter", ".txt");
FileUtil.writeToFile("write1", testFile, true);
FileUtil.writeToFile("write2", testFile, true);
assertEquals(FileUtil.readStringFromFile(testFile), "write1write2");
} finally {
FileUtil.deleteFile(testFile);
}
}
/**
* Test {@link FileUtil#writeToFile(String, File)} succeeds overwriting to a file.
*/
public void testWriteToFile_string_defaultOverwrites() throws IOException {
File testFile = null;
try {
testFile = File.createTempFile("doesnotmatter", ".txt");
FileUtil.writeToFile("write1", testFile);
assertEquals(FileUtil.readStringFromFile(testFile), "write1");
FileUtil.writeToFile("write2", testFile);
assertEquals(FileUtil.readStringFromFile(testFile), "write2");
} finally {
FileUtil.deleteFile(testFile);
}
}
/**
* Test {@link FileUtil#unixModeToPosix(int)} returns expected results;
*/
public void testUnixModeToPosix() {
Set<PosixFilePermission> perms = null;
// can't test all 8 * 8 * 8, so just a select few
perms = FileUtil.unixModeToPosix(0777);
assertTrue("failed unix mode conversion: 0777",
perms.remove(PosixFilePermission.OWNER_READ) &&
perms.remove(PosixFilePermission.OWNER_WRITE) &&
perms.remove(PosixFilePermission.OWNER_EXECUTE) &&
perms.remove(PosixFilePermission.GROUP_READ) &&
perms.remove(PosixFilePermission.GROUP_WRITE) &&
perms.remove(PosixFilePermission.GROUP_EXECUTE) &&
perms.remove(PosixFilePermission.OTHERS_READ) &&
perms.remove(PosixFilePermission.OTHERS_WRITE) &&
perms.remove(PosixFilePermission.OTHERS_EXECUTE) &&
perms.isEmpty());
perms = FileUtil.unixModeToPosix(0644);
assertTrue("failed unix mode conversion: 0644",
perms.remove(PosixFilePermission.OWNER_READ) &&
perms.remove(PosixFilePermission.OWNER_WRITE) &&
perms.remove(PosixFilePermission.GROUP_READ) &&
perms.remove(PosixFilePermission.OTHERS_READ) &&
perms.isEmpty());
perms = FileUtil.unixModeToPosix(0755);
assertTrue("failed unix mode conversion: 0755",
perms.remove(PosixFilePermission.OWNER_READ) &&
perms.remove(PosixFilePermission.OWNER_WRITE) &&
perms.remove(PosixFilePermission.OWNER_EXECUTE) &&
perms.remove(PosixFilePermission.GROUP_READ) &&
perms.remove(PosixFilePermission.GROUP_EXECUTE) &&
perms.remove(PosixFilePermission.OTHERS_READ) &&
perms.remove(PosixFilePermission.OTHERS_EXECUTE) &&
perms.isEmpty());
}
}
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