cavis/cavis-dnn/cavis-dnn-nlp/src/test/java/org/deeplearning4j/text/sentenceiterator/BasicResultSetIteratorTest.java

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package org.deeplearning4j.text.sentenceiterator;

import org.deeplearning4j.BaseDL4JTest;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.mockito.Mockito;

import java.sql.ResultSet;

import static org.junit.jupiter.api.Assertions.assertEquals;

public class BasicResultSetIteratorTest extends BaseDL4JTest {

    @BeforeEach
    public void setUp() throws Exception {

    }

    @Test
    public void testHasMoreLines() throws Exception {

        // Setup a mock ResultSet object
        ResultSet resultSetMock = Mockito.mock(ResultSet.class);

        // when .next() is called, first time true, then false
        Mockito.when(resultSetMock.next()).thenReturn(true).thenReturn(false);
        Mockito.when(resultSetMock.getString("line")).thenReturn("The quick brown fox");

        BasicResultSetIterator iterator = new BasicResultSetIterator(resultSetMock, "line");

        int cnt = 0;
        while (iterator.hasNext()) {
            String line = iterator.nextSentence();
            cnt++;
        }

        assertEquals(1, cnt);

    }

    @Test
    public void testHasMoreLinesAndReset() throws Exception {

        // Setup a mock ResultSet object
        ResultSet resultSetMock = Mockito.mock(ResultSet.class);

        // when .next() is called, first time true, then false, then after we reset we want the same behaviour
        Mockito.when(resultSetMock.next()).thenReturn(true).thenReturn(false).thenReturn(true).thenReturn(false);
        Mockito.when(resultSetMock.getString("line")).thenReturn("The quick brown fox");

        BasicResultSetIterator iterator = new BasicResultSetIterator(resultSetMock, "line");

        int cnt = 0;
        while (iterator.hasNext()) {
            String line = iterator.nextSentence();
            cnt++;
        }

        assertEquals(1, cnt);

        iterator.reset();

        cnt = 0;
        while (iterator.hasNext()) {
            String line = iterator.nextSentence();
            cnt++;
        }

        assertEquals(1, cnt);
    }
}