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 * to you under the Apache License, Version 2.0 (the            *
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package org.apache.james.queue.rabbitmq.view.cassandra;

import static org.assertj.core.api.Assertions.assertThat;

import java.nio.ByteBuffer;
import java.nio.charset.StandardCharsets;

import org.apache.mailet.Attribute;
import org.junit.jupiter.api.Test;

import com.google.common.collect.ImmutableMap;

class EnqueuedMailsDaoUtilTest {

    @Test
    void toAttributesShouldReturnEmptyWhenEmptyRawAttributeMap() {
        ImmutableMap<String, ByteBuffer> attrMap = ImmutableMap.of();

        assertThat(EnqueuedMailsDaoUtil.toAttributes(attrMap))
            .isEmpty();
    }

    @Test
    void toAttributesShouldConvertRawAttributeMap() {
        ImmutableMap<String, ByteBuffer> attrMap = ImmutableMap
            .of("Header-1", toByteBuffer("{\"serializer\":\"StringSerializer\",\"value\":\"alice\"}"));

        assertThat(EnqueuedMailsDaoUtil.toAttributes(attrMap))
            .containsExactly(Attribute.convertToAttribute("Header-1", "alice"));
    }

    private ByteBuffer toByteBuffer(String value) {
        return ByteBuffer.wrap(value.getBytes(StandardCharsets.UTF_8));
    }
}