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

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package org.apache.james.jmap;

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

import org.apache.james.jmap.api.model.Preview;
import org.apache.james.jmap.utils.JsoupHtmlTextExtractor;
import org.apache.james.util.ClassLoaderUtils;
import org.apache.james.util.mime.MessageContentExtractor;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;

class PreviewFactoryTest {
    Preview.Factory testee;

    @BeforeEach
    void setUp() {
        testee = new Preview.Factory(new MessageContentExtractor(), new JsoupHtmlTextExtractor());
    }

    @Test
    void fromMessageAsStringShouldReturnEmptyWhenNoBodyPart() throws Exception {
        Preview actual = testee.fromMessageAsString("header: value\r\n");

        assertThat(actual).isEqualTo(Preview.EMPTY);
    }

    @Test
    void fromMessageAsStringShouldReturnEmptyWhenEmptyBodyPart() throws Exception {
        Preview actual = testee.fromMessageAsString("header: value\r\n\r\n");

        assertThat(actual).isEqualTo(Preview.EMPTY);
    }

    @Test
    void fromMessageAsStringShouldReturnEmptyWhenBlankBodyPart() throws Exception {
        Preview actual = testee.fromMessageAsString("header: value\r\n\r\n  \r\n  \r\n");

        assertThat(actual).isEqualTo(Preview.EMPTY);
    }

    @Test
    void fromMessageAsStringShouldReturnSanitizedBodyTextValue() throws Exception {
        Preview actual = testee.fromMessageAsString("header: value\r\n\r\n  \r\nmessage  \r\n");

        assertThat(actual).isEqualTo(Preview.from("message"));
    }

    @Test
    void fromMessageAsStringShouldExtractHtml() throws Exception {
        Preview actual = testee.fromMessageAsString(ClassLoaderUtils.getSystemResourceAsString("fullMessage.eml"));

        assertThat(actual).isEqualTo(Preview.from("blabla bloblo"));
    }
}