/*
 * Copyright 2021-2023 the original author or authors.
 *
 * 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
 *
 *      https://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.springframework.data.mongodb.core.aggregation;

import static org.springframework.data.mongodb.test.util.Assertions.*;

import org.junit.jupiter.api.Test;

/**
 * Unit tests for {@link EvaluationOperators}.
 *
 * @author Mark Paluch
 * @author Christoph Strobl
 */
class EvaluationOperatorsUnitTests {

	@Test // GH-3790
	void shouldRenderExprCorrectly() {

		assertThat(EvaluationOperators.valueOf("foo").expr().toDocument(Aggregation.DEFAULT_CONTEXT))
				.isEqualTo("{ $expr: \"$foo\" }");
	}

	@Test // GH-4139
	void shouldRenderLocfCorrectly() {

		assertThat(EvaluationOperators.valueOf("foo").locf().toDocument(Aggregation.DEFAULT_CONTEXT))
				.isEqualTo("{ $locf: \"$foo\" }");
	}
}
