SuggestionOptionTests.java example

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package org.elasticsearch.search.suggest;

import org.elasticsearch.common.bytes.BytesReference;
import org.elasticsearch.common.text.Text;
import org.elasticsearch.common.xcontent.ToXContent;
import org.elasticsearch.common.xcontent.XContentParser;
import org.elasticsearch.common.xcontent.XContentType;
import org.elasticsearch.search.suggest.Suggest.Suggestion.Entry.Option;
import org.elasticsearch.test.ESTestCase;

import java.io.IOException;

import static org.elasticsearch.common.xcontent.XContentHelper.toXContent;
import static org.elasticsearch.common.xcontent.XContentParserUtils.ensureExpectedToken;
import static org.elasticsearch.test.hamcrest.ElasticsearchAssertions.assertToXContentEquivalent;

public class SuggestionOptionTests extends ESTestCase {

    public static Option createTestItem() {
        Text text = new Text(randomAlphaOfLengthBetween(5, 15));
        float score = randomFloat();
        Text highlighted = randomFrom((Text) null, new Text(randomAlphaOfLengthBetween(5, 15)));
        Boolean collateMatch = randomFrom((Boolean) null, randomBoolean());
        return new Option(text, highlighted, score, collateMatch);
    }

    public void testFromXContent() throws IOException {
        Option option = createTestItem();
        XContentType xContentType = randomFrom(XContentType.values());
        boolean humanReadable = randomBoolean();
        BytesReference originalBytes = toShuffledXContent(option, xContentType, ToXContent.EMPTY_PARAMS, humanReadable);
        Option parsed;
        try (XContentParser parser = createParser(xContentType.xContent(), originalBytes)) {
            ensureExpectedToken(XContentParser.Token.START_OBJECT, parser.nextToken(), parser::getTokenLocation);
            parsed = Option.fromXContent(parser);
            assertEquals(XContentParser.Token.END_OBJECT, parser.currentToken());
            assertNull(parser.nextToken());
        }
        assertEquals(option.getText(), parsed.getText());
        assertEquals(option.getHighlighted(), parsed.getHighlighted());
        assertEquals(option.getScore(), parsed.getScore(), Float.MIN_VALUE);
        assertEquals(option.collateMatch(), parsed.collateMatch());
        assertToXContentEquivalent(originalBytes, toXContent(parsed, xContentType, humanReadable), xContentType);
    }

    public void testToXContent() throws IOException {
        Option option = new Option(new Text("someText"), new Text("somethingHighlighted"), 1.3f, true);
        BytesReference xContent = toXContent(option, XContentType.JSON, randomBoolean());
        assertEquals("{\"text\":\"someText\","
                      + "\"highlighted\":\"somethingHighlighted\","
                      + "\"score\":1.3,"
                      + "\"collate_match\":true"
                   + "}"
                   , xContent.utf8ToString());
    }
}