TestMetadataAdapter.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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
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 */
package org.apache.arrow.flight.grpc;

import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertNotNull;

import io.grpc.Metadata;
import org.junit.jupiter.api.Test;

public class TestMetadataAdapter {

  @Test
  public void getAllReturnsEmptyIterableForMissingKey() {
    MetadataAdapter headers = new MetadataAdapter(new Metadata());

    assertNotNull(headers.getAll("missing"));
    assertFalse(headers.getAll("missing").iterator().hasNext());
    assertNotNull(headers.getAllByte("missing-bin"));
    assertFalse(headers.getAllByte("missing-bin").iterator().hasNext());
  }
}