ListValueValidatorTest.java

package org.mongodb.morphia.query.validation;

import org.junit.Test;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

import static java.util.Arrays.asList;
import static org.hamcrest.CoreMatchers.is;
import static org.junit.Assert.assertThat;

public class ListValueValidatorTest {
    @Test
    public void shouldAllowSubclassesOfList() {
        // given
        ArrayList<ValidationFailure> validationFailures = new ArrayList<ValidationFailure>();
        // when
        boolean validationApplied = ListValueValidator.getInstance().apply(null, new ArrayList<String>(), validationFailures);
        // then
        assertThat(validationApplied, is(true));
        assertThat(validationFailures.size(), is(0));
    }

    @Test
    public void shouldAllowValuesOfList() {
        // given
        ArrayList<ValidationFailure> validationFailures = new ArrayList<ValidationFailure>();
        // when
        List<Integer> list = asList(1, 2);
        boolean validationApplied = ListValueValidator.getInstance().apply(null, list, validationFailures);
        // then
        assertThat(validationApplied, is(true));
        assertThat(validationFailures.size(), is(0));
    }

    @Test
    public void shouldNotApplyIfValueIsNotAList() {
        // given
        ArrayList<ValidationFailure> validationFailures = new ArrayList<ValidationFailure>();
        // when
        boolean validationApplied = ListValueValidator.getInstance().apply(null, new HashMap<String, Object>(), validationFailures);
        // then
        assertThat(validationApplied, is(false));
        assertThat(validationFailures.size(), is(0));
    }
}