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ValueWriterDecoratorTest.java
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ValueWriterDecoratorTest.java
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/*
*
* Copyright (c) 2022 Contributors to the Eclipse Foundation
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* and Apache License v2.0 which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Apache License v2.0 is available at http://www.opensource.org/licenses/apache2.0.php.
*
* You may elect to redistribute this code under either of these licenses.
*
* Contributors:
*
* Otavio Santana
* Elias Nogueira
*
*/
package org.eclipse.jnosql.communication.writer;
import org.eclipse.jnosql.communication.ValueWriter;
import org.eclipse.jnosql.communication.ValueWriterDecorator;
import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.params.ParameterizedTest;
import org.junit.jupiter.params.provider.ValueSource;
import java.time.temporal.Temporal;
import java.util.Collections;
import java.util.Optional;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
class ValueWriterDecoratorTest {
@SuppressWarnings("rawtypes")
private final ValueWriter valueWriter = ValueWriterDecorator.getInstance();
@ParameterizedTest(name = "must be compatible to {0}")
@DisplayName("Should be able to verify the test compatibility")
@ValueSource(classes = {Enum.class, Optional.class, Temporal.class})
@SuppressWarnings("unchecked")
void shouldVerifyCompatibility(Class<?> supportedClass) {
assertThat(valueWriter.test(supportedClass)).isTrue();
}
@Test
@DisplayName("Should be able to check the test object incompatibility")
@SuppressWarnings("unchecked")
void shouldVerifyIncompatibility() {
assertThat(valueWriter.test(Boolean.class)).isFalse();
}
@Test
@DisplayName("Should be able to convert the result")
@SuppressWarnings("unchecked")
void shouldConvert() {
String diana = "diana";
Optional<String> optional = Optional.of("diana");
Object result = valueWriter.write(optional);
assertThat(diana).isEqualTo(result);
}
@Test
@DisplayName("Should throw UnsupportedOperationException when type is not supported")
@SuppressWarnings("unchecked")
void shouldThrowUnsupportedOperationExceptionWhenTypeIsNotSupported() {
assertThatThrownBy(() -> valueWriter.write(Collections.EMPTY_LIST)).isInstanceOf(UnsupportedOperationException.class)
.hasMessage("The type class java.util.Collections$EmptyList is not supported yet");
}
}