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/*******************************************************************************
* ============LICENSE_START====================================================
* * org.onap.ccsdk
* * ===========================================================================
* * Copyright © 2023 AT&T Intellectual Property. All rights reserved.
* * ===========================================================================
* * 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.
* * ============LICENSE_END====================================================
* *
* *
******************************************************************************/
package org.onap.ccsdk.apps.cadi.test;
import static junit.framework.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import org.junit.Before;
import org.junit.Test;
import org.onap.ccsdk.apps.cadi.Capacitor;
import java.lang.reflect.*;
public class JU_Capacitor {
private Capacitor cap;
public final static String TEST_DATA =
"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa" +
"bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb" +
"cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc" +
"dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd" +
"eeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee" +
"ffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff";
@Before
public void setup() {
cap = new Capacitor();
}
@Test
public void singleByteTest() throws Exception {
assertEquals(cap.read(), -1);
cap.setForRead();
Field curr_field = Capacitor.class.getDeclaredField("curr");
curr_field.setAccessible(true);
Field idx_field = Capacitor.class.getDeclaredField("idx");
idx_field.setAccessible(true);
assertNull(curr_field.get(cap));
assertEquals(idx_field.get(cap), 0);
for (int iter = 0; iter < 20; ++iter) {
for (int i = 0; i < 20; ++i) {
cap.put((byte)('a' + i));
}
cap.setForRead();
byte[] array = new byte[20];
for (int i = 0; i < 20; ++i) {
array[i]=(byte)cap.read();
}
assertEquals("abcdefghijklmnopqrst", new String(array));
assertEquals(-1, cap.read());
cap.done();
}
for (int i = 0; i < 500; i++) {
cap.put((byte)'a');
}
cap.setForRead();
byte[] array = new byte[500];
for (int i = 0; i < 500; ++i) {
array[i]=(byte)cap.read();
}
assertEquals((new String(array)).length(), 500);
assertEquals(-1, cap.read());
}
@Test
public void availableTest() {
assertEquals(cap.available(), 0);
for (int i = 0; i < 100; ++i) {
cap.put((byte)'a');
}
// The Capacitor can hold 256 bytes. After reading 100 bytes,
// it should have 156 available
assertEquals(cap.available(), 156);
}
@Test
public void byteArrayTest() {
byte[] arrayA = TEST_DATA.getBytes();
assertEquals(cap.read(arrayA, 0, arrayA.length), -1);
cap.put(arrayA, 0, arrayA.length);
byte[] arrayB = new byte[arrayA.length];
cap.setForRead();
assertEquals(arrayA.length, cap.read(arrayB, 0, arrayB.length));
assertEquals(TEST_DATA, new String(arrayB));
assertEquals(-1, cap.read());
cap.done();
String b = "This is some content that we want to read";
byte[] a = b.getBytes();
byte[] c = new byte[b.length()]; // we want to use this to test reading offsets, etc
for (int i = 0; i < a.length; i += 11) {
cap.put(a, i, Math.min(11, a.length-i));
}
cap.reset();
int read;
for (int i = 0; i < c.length; i += read) {
read = cap.read(c, i, Math.min(3, c.length-i));
}
assertEquals(b, new String(c));
}
@Test
public void resetTest() throws Exception {
cap.reset();
Field curr_field = Capacitor.class.getDeclaredField("curr");
curr_field.setAccessible(true);
Field idx_field = Capacitor.class.getDeclaredField("idx");
idx_field.setAccessible(true);
assertNull(curr_field.get(cap));
assertEquals(idx_field.get(cap), 0);
cap.put((byte)'a');
cap.reset();
assertNotNull(curr_field.get(cap));
assertEquals(idx_field.get(cap), 1);
}
@Test
public void skipTest() throws Exception {
// capacitor can't skip if nothing has been put into it
assertEquals(cap.skip(10), 0);
cap.put((byte)'a');
// The Capacitor can hold 256 bytes. If we try to skip 100 bytes,
// it should only skip 1 byte, leaving 255 remaining
assertEquals(cap.skip(100), 255);
// Skipping 200 bytes leaves 0 remaining
assertEquals(cap.skip(200), 0);
}
}
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