server/protocols/jmap-draft/src/test/java/org/apache/james/jmap/draft/model/MessageHeaderPropertyTest.java

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package org.apache.james.jmap.draft.model;

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

import org.apache.james.jmap.model.MessageProperties.HeaderProperty;
import org.junit.Test;

public class MessageHeaderPropertyTest {

    @Test
    public void fromFieldNameShouldLowercaseFieldName() {
        assertThat(HeaderProperty.fromFieldName("FiElD")).isEqualTo(HeaderProperty.fromFieldName("field"));
    }

    @Test
    public void fromFieldNameShouldThrowWhenStartWithHeaderPrefix() {
        assertThatThrownBy(() -> HeaderProperty.fromFieldName("headers.FiElD")).isInstanceOf(IllegalArgumentException.class);
    }

    @Test
    public void valueOfShouldThrowWhenNull() {
        assertThatThrownBy(() -> HeaderProperty.valueOf(null)).isInstanceOf(NullPointerException.class);
    }

    @Test
    public void valueOfalueOfShouldThrowWhenNull() {
        assertThatThrownBy(() -> HeaderProperty.valueOf(null)).isInstanceOf(NullPointerException.class);
    }

    @Test
    public void valueOfShouldReturnLowerCasedProperty() {
        HeaderProperty headerProperty = HeaderProperty.valueOf("headers.ProP");

        assertThat(headerProperty.asFieldName()).isEqualTo("prop");
    }

    @Test
    public void valueOfShouldThrowWhenValueIsNotHeader() {
        assertThatThrownBy(() -> HeaderProperty.valueOf("ProP")).isInstanceOf(IllegalArgumentException.class);
    }
    
    @Test
    public void findShouldReturnStreamWhenValueStartsWithRightString() {
        assertThat(HeaderProperty.find(HeaderProperty.HEADER_PROPERTY_PREFIX + "myvalue"))
            .contains(HeaderProperty.valueOf(HeaderProperty.HEADER_PROPERTY_PREFIX + "myvalue"));
    }

    @Test
    public void findShouldReturnEmptyStreamWhenValueStartsWithWrongString() {
        assertThat(HeaderProperty.find("bad value" + HeaderProperty.HEADER_PROPERTY_PREFIX + "myvalue")).isEmpty();
    }
    
    @Test
    public void equalsShouldBeTrueWhenIdenticalProperties() {
        assertThat(HeaderProperty.valueOf("headers.prop")).isEqualTo(HeaderProperty.valueOf("headers.prop"));
    }

    @Test
    public void equalsShouldBeFalseWhenDifferentProperties() {
        assertThat(HeaderProperty.valueOf("headers.prop")).isNotEqualTo(HeaderProperty.valueOf("headers.other"));
    }

    @Test
    public void equalsShouldBeTrueWhenDifferentCaseProperties() {
        assertThat(HeaderProperty.valueOf("headers.prOP")).isEqualTo(HeaderProperty.valueOf("headers.PRop"));
    }
}