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/*-
* ============LICENSE_START=======================================================
* ONAP Policy Models
* ================================================================================
* Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
* Modifications Copyright (C) 2023 Nordix Foundation.
* ================================================================================
* 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.policy.models.sim.dmaap.rest;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
import jakarta.ws.rs.core.MediaType;
import java.io.ByteArrayInputStream;
import java.io.EOFException;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.StandardCharsets;
import java.util.List;
import org.junit.Before;
import org.junit.Test;
public class CambriaMessageBodyHandlerTest {
private static final String STD_INPUT = "1.3.XAbc";
private static final String EXPECTED_OUTPUT = "[Abc]";
private CambriaMessageBodyHandler hdlr;
@Before
public void setUp() {
hdlr = new CambriaMessageBodyHandler();
}
@Test
public void testIsReadable() {
assertTrue(hdlr.isReadable(null, null, null, MediaType.valueOf("application/cambria")));
assertFalse(hdlr.isReadable(null, null, null, null));
assertFalse(hdlr.isReadable(null, null, null, MediaType.valueOf("application/other")));
assertFalse(hdlr.isReadable(null, null, null, MediaType.valueOf("other/cambria")));
}
@Test
public void testReadFrom() throws IOException {
List<Object> lst = readStream("1.11.AMessageBody", "3.3.123Foo3.3.123Bar", "0.16.You can do that..8.Or that.");
assertEquals("[MessageBody, Foo, Bar, You can do that., Or that.]", lst.toString());
// empty stream
lst = readStream();
assertEquals("[]", lst.toString());
}
@Test
public void testReadMessage_InvalidPartitionLength() {
assertThatThrownBy(() -> readStream("100000000.3.")).isInstanceOf(IOException.class)
.hasMessage("invalid partition length");
}
@Test
public void testReadMessage_InvalidMessageLength() {
assertThatThrownBy(() -> readStream("3.100000000.ABC")).isInstanceOf(IOException.class)
.hasMessage("invalid message length");
}
@Test
public void testSkipWhitespace() throws IOException {
// no white space
assertEquals(EXPECTED_OUTPUT, readStream(STD_INPUT).toString());
// single white space
assertEquals(EXPECTED_OUTPUT, readStream(" " + STD_INPUT).toString());
// multiple white spaces
assertEquals(EXPECTED_OUTPUT, readStream("\n\n\t" + STD_INPUT).toString());
}
@Test
public void testReadLength_NoDigits() throws IOException {
assertEquals("[]", readStream("..").toString());
}
@Test
public void testReadLength_NoDot() {
assertThatThrownBy(() -> readStream("3.2")).isInstanceOf(EOFException.class)
.hasMessage("missing '.' in 'length' field");
}
@Test
public void testReadLength_NonDigit() {
assertThatThrownBy(() -> readStream("3.2x.ABCde")).isInstanceOf(IOException.class)
.hasMessage("invalid character in 'length' field");
}
@Test
public void testReadLength_TooManyDigits() {
assertThatThrownBy(() -> readStream("3.12345678901234567890.ABCde")).isInstanceOf(IOException.class)
.hasMessage("too many digits in 'length' field");
}
@Test
public void testReadString_ZeroLength() throws IOException {
assertEquals("[]", readStream("1..X").toString());
}
@Test
public void testReadString_TooShort() {
assertThatThrownBy(() -> readStream(".5.me")).isInstanceOf(EOFException.class).hasMessageContaining("actual");
}
/**
* Reads a stream via the handler.
*
* @param text lines of text to be read
* @return the list of objects that were decoded from the stream
* @throws IOException if an error occurs
*/
private List<Object> readStream(String... text) throws IOException {
return hdlr.readFrom(null, null, null, null, null, makeStream(text));
}
/**
* Creates an input stream from lines of text.
*
* @param text lines of text
* @return an input stream
*/
private InputStream makeStream(String... text) {
return new ByteArrayInputStream(String.join("\n", text).getBytes(StandardCharsets.UTF_8));
}
}
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