/* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 org.apache.harmony.nio.tests.java.nio;
import dalvik.annotation.TestLevel;
import dalvik.annotation.TestTargetNew;
import dalvik.annotation.TestTargetClass;
import java.nio.Buffer;
import java.nio.ByteBuffer;
import java.nio.InvalidMarkException;
import junit.framework.TestCase;
/**
* Tests a java.nio.Buffer instance.
*/
@TestTargetClass(java.nio.Buffer.class)
public abstract class AbstractBufferTest extends TestCase {
protected Buffer baseBuf;
protected int capacity;
protected void setUp() throws Exception{
super.setUp();
capacity = 10;
baseBuf = ByteBuffer.allocate(10);
}
protected void tearDown() throws Exception{
super.tearDown();
}
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "capacity",
args = {}
)
public void testCapacity() {
assertTrue(0 <= baseBuf.position() && baseBuf.position() <= baseBuf.limit()
&& baseBuf.limit() <= baseBuf.capacity());
assertEquals(capacity, baseBuf.capacity());
}
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "clear",
args = {}
)
public void testClear() {
// save state
int oldPosition = baseBuf.position();
int oldLimit = baseBuf.limit();
Buffer ret = baseBuf.clear();
assertSame(ret, baseBuf);
assertEquals(0, baseBuf.position());
assertEquals(baseBuf.limit(), baseBuf.capacity());
try {
baseBuf.reset();
fail("Should throw Exception"); //$NON-NLS-1$S
} catch (InvalidMarkException e) {
// expected
}
// restore state
baseBuf.limit(oldLimit);
baseBuf.position(oldPosition);
}
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "flip",
args = {}
)
public void testFlip() {
// save state
int oldPosition = baseBuf.position();
int oldLimit = baseBuf.limit();
baseBuf.mark();
Buffer ret = baseBuf.flip();
assertSame(ret, baseBuf);
assertEquals(0, baseBuf.position());
assertEquals(oldPosition, baseBuf.limit());
try {
baseBuf.reset();
fail("Should throw Exception"); //$NON-NLS-1$
} catch (InvalidMarkException e) {
// expected
}
// restore state
baseBuf.limit(oldLimit);
baseBuf.position(oldPosition);
}
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "hasRemaining",
args = {}
)
public void testHasRemaining() {
// save state
int oldPosition = baseBuf.position();
int oldLimit = baseBuf.limit();
assertEquals(baseBuf.hasRemaining(), baseBuf.position() < baseBuf.limit());
baseBuf.position(baseBuf.limit());
assertFalse(baseBuf.hasRemaining());
// restore state
baseBuf.limit(oldLimit);
baseBuf.position(oldPosition);
}
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "Abstract method.",
method = "isReadOnly",
args = {}
)
public abstract void testIsReadOnly();
/*
* Class under test for int limit()
*/
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "limit",
args = {}
)
public void testLimit() {
assertTrue(0 <= baseBuf.position() && baseBuf.position() <= baseBuf.limit()
&& baseBuf.limit() <= baseBuf.capacity());
assertEquals(capacity, baseBuf.limit());
}
/*
* Class under test for Buffer limit(int)
*/
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "limit",
args = {int.class}
)
public void testLimitint() {
// save state
int oldPosition = baseBuf.position();
int oldLimit = baseBuf.limit();
Buffer ret = baseBuf.limit(baseBuf.limit());
assertSame(ret, baseBuf);
baseBuf.mark();
baseBuf.limit(baseBuf.capacity());
assertEquals(baseBuf.limit(), baseBuf.capacity());
// position should not change
assertEquals(oldPosition, baseBuf.position());
// mark should be valid
baseBuf.reset();
assertTrue("The buffer capacity was 0", baseBuf.capacity() > 0);
baseBuf.limit(baseBuf.capacity());
baseBuf.position(baseBuf.capacity());
baseBuf.mark();
baseBuf.limit(baseBuf.capacity() - 1);
// position should be the new limit
assertEquals(baseBuf.limit(), baseBuf.position());
// mark should be invalid
try {
baseBuf.reset();
fail("Should throw Exception"); //$NON-NLS-1$
} catch (InvalidMarkException e) {
// expected
}
try {
baseBuf.limit(-1);
fail("Should throw Exception"); //$NON-NLS-1$
} catch (IllegalArgumentException e) {
// expected
}
try {
baseBuf.limit(baseBuf.capacity() + 1);
fail("Should throw Exception"); //$NON-NLS-1$
} catch (IllegalArgumentException e) {
// expected
}
// restore state
baseBuf.limit(oldLimit);
baseBuf.position(oldPosition);
}
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "mark",
args = {}
)
public void testMark() {
// save state
int oldPosition = baseBuf.position();
int oldLimit = baseBuf.limit();
Buffer ret = baseBuf.mark();
assertSame(ret, baseBuf);
baseBuf.mark();
baseBuf.position(baseBuf.limit());
baseBuf.reset();
assertEquals(oldPosition, baseBuf.position());
baseBuf.mark();
baseBuf.position(baseBuf.limit());
baseBuf.reset();
assertEquals(oldPosition, baseBuf.position());
// restore state
baseBuf.limit(oldLimit);
baseBuf.position(oldPosition);
}
/*
* Class under test for int position()
*/
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "position",
args = {}
)
public void testPosition() {
assertTrue(0 <= baseBuf.position() && baseBuf.position() <= baseBuf.limit()
&& baseBuf.limit() <= baseBuf.capacity());
assertEquals(0, baseBuf.position());
}
/*
* Class under test for Buffer position(int)
*/
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "position",
args = {int.class}
)
public void testPositionint() {
// save state
int oldPosition = baseBuf.position();
int oldLimit = baseBuf.limit();
try {
baseBuf.position(-1);
fail("Should throw Exception"); //$NON-NLS-1$
} catch (IllegalArgumentException e) {
// expected
}
try {
baseBuf.position(baseBuf.limit() + 1);
fail("Should throw Exception"); //$NON-NLS-1$
} catch (IllegalArgumentException e) {
// expected
}
baseBuf.mark();
baseBuf.position(baseBuf.position());
baseBuf.reset();
assertEquals(oldPosition, baseBuf.position());
baseBuf.position(0);
assertEquals(0, baseBuf.position());
baseBuf.position(baseBuf.limit());
assertEquals(baseBuf.limit(), baseBuf.position());
assertTrue("The buffer capacity was 0.", baseBuf.capacity() > 0);
baseBuf.limit(baseBuf.capacity());
baseBuf.position(baseBuf.limit());
baseBuf.mark();
baseBuf.position(baseBuf.limit() - 1);
assertEquals(baseBuf.limit() - 1, baseBuf.position());
// mark should be invalid
try {
baseBuf.reset();
fail("Should throw Exception"); //$NON-NLS-1$
} catch (InvalidMarkException e) {
// expected
}
Buffer ret = baseBuf.position(0);
assertSame(ret, baseBuf);
// restore state
baseBuf.limit(oldLimit);
baseBuf.position(oldPosition);
}
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "remaining",
args = {}
)
public void testRemaining() {
assertEquals(baseBuf.remaining(), baseBuf.limit() - baseBuf.position());
}
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "reset",
args = {}
)
public void testReset() {
// save state
int oldPosition = baseBuf.position();
int oldLimit = baseBuf.limit();
baseBuf.mark();
baseBuf.position(baseBuf.limit());
baseBuf.reset();
assertEquals(oldPosition, baseBuf.position());
baseBuf.mark();
baseBuf.position(baseBuf.limit());
baseBuf.reset();
assertEquals(oldPosition, baseBuf.position());
Buffer ret = baseBuf.reset();
assertSame(ret, baseBuf);
baseBuf.clear();
try {
baseBuf.reset();
fail("Should throw Exception"); //$NON-NLS-1$
} catch (InvalidMarkException e) {
// expected
}
// restore state
baseBuf.limit(oldLimit);
baseBuf.position(oldPosition);
}
@TestTargetNew(
level = TestLevel.PARTIAL_COMPLETE,
notes = "",
method = "rewind",
args = {}
)
public void testRewind() {
// save state
int oldPosition = baseBuf.position();
int oldLimit = baseBuf.limit();
Buffer ret = baseBuf.rewind();
assertEquals(0, baseBuf.position());
assertSame(ret, baseBuf);
try {
baseBuf.reset();
fail("Should throw Exception"); //$NON-NLS-1$
} catch (InvalidMarkException e) {
// expected
}
// restore state
baseBuf.limit(oldLimit);
baseBuf.position(oldPosition);
}
}
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