JsonProviderTest.java
/*
* Copyright (c) 2021, 2022 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package ee.jakarta.tck.jsonp.api.provider;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.Reader;
import java.io.Writer;
import java.util.Map;
import jakarta.json.JsonArrayBuilder;
import jakarta.json.JsonBuilderFactory;
import jakarta.json.JsonObjectBuilder;
import jakarta.json.JsonReader;
import jakarta.json.JsonReaderFactory;
import jakarta.json.JsonWriter;
import jakarta.json.JsonWriterFactory;
import jakarta.json.spi.JsonProvider;
import jakarta.json.stream.JsonGenerator;
import jakarta.json.stream.JsonGeneratorFactory;
import jakarta.json.stream.JsonParser;
import jakarta.json.stream.JsonParserFactory;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertEquals;
/**
* Tests related to JsonProvider.
*
*/
public class JsonProviderTest {
private static final String JSONP_PROVIDER_FACTORY = "jakarta.json.provider";
private String factoryValue;
@BeforeEach
public void setUp() {
factoryValue = System.getProperty(JSONP_PROVIDER_FACTORY);
System.clearProperty(JSONP_PROVIDER_FACTORY);
}
@AfterEach
public void reset() {
if (factoryValue != null) {
System.setProperty(JSONP_PROVIDER_FACTORY, factoryValue);
} else {
System.clearProperty(JSONP_PROVIDER_FACTORY);
}
}
/**
* Verifies it is possible to obtain the JsonProvider implementation from a System property.
*/
@Test
public void systemProperty() {
System.setProperty(JSONP_PROVIDER_FACTORY, DummyJsonProvider.class.getName());
JsonProvider provider = JsonProvider.provider();
assertEquals(DummyJsonProvider.class, provider.getClass());
}
public static class DummyJsonProvider extends JsonProvider {
@Override
public JsonParser createParser(Reader reader) {
return null;
}
@Override
public JsonParser createParser(InputStream in) {
return null;
}
@Override
public JsonParserFactory createParserFactory(Map<String, ?> config) {
return null;
}
@Override
public JsonGenerator createGenerator(Writer writer) {
return null;
}
@Override
public JsonGenerator createGenerator(OutputStream out) {
return null;
}
@Override
public JsonGeneratorFactory createGeneratorFactory(Map<String, ?> config) {
return null;
}
@Override
public JsonReader createReader(Reader reader) {
return null;
}
@Override
public JsonReader createReader(InputStream in) {
return null;
}
@Override
public JsonWriter createWriter(Writer writer) {
return null;
}
@Override
public JsonWriter createWriter(OutputStream out) {
return null;
}
@Override
public JsonWriterFactory createWriterFactory(Map<String, ?> config) {
return null;
}
@Override
public JsonReaderFactory createReaderFactory(Map<String, ?> config) {
return null;
}
@Override
public JsonObjectBuilder createObjectBuilder() {
return null;
}
@Override
public JsonArrayBuilder createArrayBuilder() {
return null;
}
@Override
public JsonBuilderFactory createBuilderFactory(Map<String, ?> config) {
return null;
}
}
}