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/*
* Copyright (C) 2019 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 android.net.util;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import androidx.annotation.NonNull;
import androidx.test.filters.SmallTest;
import androidx.test.runner.AndroidJUnit4;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import java.nio.charset.StandardCharsets;
/**
* Tests for HostnameTransliterator class.
*
*/
@RunWith(AndroidJUnit4.class)
@SmallTest
public class HostnameTransliteratorTest {
private static final String TEST_HOST_NAME_EN = "AOSP on Crosshatch";
private static final String TEST_HOST_NAME_EN_TRANSLITERATION = "AOSP-on-Crosshatch";
private static final String TEST_HOST_NAME_JP = "AOSP on ほげほげ";
private static final String TEST_HOST_NAME_JP_TRANSLITERATION = "AOSP-on-hogehoge";
private static final String TEST_HOST_NAME_CN = "AOSP on 安卓";
private static final String TEST_HOST_NAME_CN_TRANSLITERATION = "AOSP-on-an-zhuo";
private static final String TEST_HOST_NAME_UNICODE = "AOSP on àéö→ūçŗ̊œ";
private static final String TEST_HOST_NAME_UNICODE_TRANSLITERATION = "AOSP-on-aeo-ucroe";
private static final String TEST_HOST_NAME_LONG =
"AOSP on Ccccccrrrrrroooooosssssshhhhhhaaaaaattttttcccccchhhhhh3abcd";
private static final String TEST_HOST_NAME_LONG_TRANSLITERATION =
"AOSP-on-Ccccccrrrrrroooooosssssshhhhhhaaaaaattttttcccccchhhhhh3";
private static final String TEST_HOST_NAME_LONG_TRUNCATED =
"AOSP-on-Ccccccrrrrrroooooosssssshhhhhhaaaaaattttttcccccchhhhhh3";
@NonNull
private HostnameTransliterator mTransliterator;
@Before
public void setUp() throws Exception {
mTransliterator = new HostnameTransliterator();
assertNotNull(mTransliterator);
}
@Test
public void testNullHostname() {
assertNull(mTransliterator.transliterate(null));
}
private void assertHostnameTransliteration(final String hostnameAftertransliteration,
final String hostname) {
assertEquals(hostnameAftertransliteration, mTransliterator.transliterate(hostname));
}
@Test
public void testEmptyHostname() {
assertHostnameTransliteration(null, "");
}
@Test
public void testHostnameOnlyTabs() {
assertHostnameTransliteration(null, "\t\t");
}
@Test
public void testHostnameOnlySpaces() {
assertHostnameTransliteration(null, " ");
}
@Test
public void testHostnameOnlyUnsupportedAsciiSymbols() {
final String symbol = new String(new byte[] { 0x00, 0x1b /* ESC */, 0x7f /* DEL */,
0x10 /* backspace */}, StandardCharsets.US_ASCII);
assertHostnameTransliteration(null, symbol);
}
@Test
public void testHostnameMixedAsciiSymbols() {
final String symbol = new String(new byte[] { 0x00, 'a', 0x1b /* ESC */, 0x7f /* DEL */,
'b', 0x10 /* backspace */}, StandardCharsets.US_ASCII);
assertHostnameTransliteration("a-b", symbol);
}
@Test
public void testHostnames() {
assertHostnameTransliteration(TEST_HOST_NAME_EN_TRANSLITERATION, TEST_HOST_NAME_EN);
assertHostnameTransliteration(TEST_HOST_NAME_JP_TRANSLITERATION, TEST_HOST_NAME_JP);
assertHostnameTransliteration(TEST_HOST_NAME_CN_TRANSLITERATION, TEST_HOST_NAME_CN);
assertHostnameTransliteration(TEST_HOST_NAME_UNICODE_TRANSLITERATION,
TEST_HOST_NAME_UNICODE);
}
@Test
public void testHostnameWithMinusSign() {
assertHostnameTransliteration(TEST_HOST_NAME_EN_TRANSLITERATION, "-AOSP on Crosshatch");
assertHostnameTransliteration(TEST_HOST_NAME_EN_TRANSLITERATION, "AOSP on Crosshatch-");
assertHostnameTransliteration(TEST_HOST_NAME_EN_TRANSLITERATION, "---AOSP on Crosshatch");
assertHostnameTransliteration(TEST_HOST_NAME_EN_TRANSLITERATION, "AOSP on Crosshatch---");
assertHostnameTransliteration(TEST_HOST_NAME_EN_TRANSLITERATION, "AOSP---on---Crosshatch");
}
@Test
public void testLongHostname() {
assertHostnameTransliteration(TEST_HOST_NAME_LONG_TRANSLITERATION, TEST_HOST_NAME_LONG);
}
@Test
public void testNonAsciiHostname() {
mTransliterator = new HostnameTransliterator(null);
assertHostnameTransliteration(null, TEST_HOST_NAME_UNICODE);
}
@Test
public void testAsciiLongHostname() {
mTransliterator = new HostnameTransliterator(null);
assertHostnameTransliteration(TEST_HOST_NAME_LONG_TRUNCATED, TEST_HOST_NAME_LONG);
}
}
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