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/*
* Copyright (C) 2009 The Guava Authors
*
* 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.google.common.escape;
import com.google.common.annotations.GwtCompatible;
import com.google.common.collect.ImmutableMap;
import java.util.Map;
import junit.framework.TestCase;
/** @author David Beaumont */
@GwtCompatible
public class ArrayBasedEscaperMapTest extends TestCase {
public void testNullMap() {
try {
ArrayBasedEscaperMap.create(null);
fail("expected exception did not occur");
} catch (NullPointerException e) {
// pass
}
}
public void testEmptyMap() {
Map<Character, String> map = ImmutableMap.of();
ArrayBasedEscaperMap fem = ArrayBasedEscaperMap.create(map);
// Non-null array of zero length.
assertEquals(0, fem.getReplacementArray().length);
}
public void testMapLength() {
Map<Character, String> map =
ImmutableMap.of(
'a', "first",
'z', "last");
ArrayBasedEscaperMap fem = ArrayBasedEscaperMap.create(map);
// Array length is highest character value + 1
assertEquals('z' + 1, fem.getReplacementArray().length);
}
public void testMapping() {
Map<Character, String> map =
ImmutableMap.of(
'\0', "zero",
'a', "first",
'b', "second",
'z', "last",
'\uFFFF', "biggest");
ArrayBasedEscaperMap fem = ArrayBasedEscaperMap.create(map);
char[][] replacementArray = fem.getReplacementArray();
// Array length is highest character value + 1
assertEquals(65536, replacementArray.length);
// The final element should always be non null.
assertNotNull(replacementArray[replacementArray.length - 1]);
// Exhaustively check all mappings (an int index avoids wrapping).
for (int n = 0; n < replacementArray.length; ++n) {
char c = (char) n;
if (replacementArray[n] != null) {
assertEquals(map.get(c), new String(replacementArray[n]));
} else {
assertFalse(map.containsKey(c));
}
}
}
}
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