/*
* Created on Jul 27, 2012
*
* Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
* an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the
* specific language governing permissions and limitations under the License.
*
* Copyright @2011 the original author or authors.
*/
package org.assertj.core.groups;
import static org.assertj.core.api.Assertions.assertThat;
import static org.assertj.core.extractor.Extractors.byName;
import static org.assertj.core.groups.FieldsOrPropertiesExtractor.extract;
import static org.assertj.core.groups.Tuple.tuple;
import static org.assertj.core.test.ExpectedException.none;
import static org.assertj.core.util.Lists.newArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import org.assertj.core.test.Employee;
import org.assertj.core.test.ExpectedException;
import org.assertj.core.test.Name;
import org.assertj.core.util.introspection.IntrospectionError;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
public class FieldsOrPropertiesExtractor_extract_tuples_test {
@Rule
public ExpectedException thrown = none();
private Employee yoda;
private Employee luke;
private List<Employee> employees;
@Before
public void setUp() {
yoda = new Employee(1L, new Name("Yoda"), 800);
yoda.surname = new Name("Master", "Jedi");
luke = new Employee(2L, new Name("Luke", "Skywalker"), 26);
employees = newArrayList(yoda, luke);
}
@Test
public void should_extract_tuples_from_fields_or_properties() {
List<Tuple> extractedValues = extract(employees, byName("id", "age"));
assertThat(extractedValues).containsOnly(tuple(1L, 800), tuple(2L, 26));
}
@Test
public void should_extract_tuples_with_consistent_iteration_order() {
Set<Employee> employeeSet = new HashSet<Employee>(employees);
List<Tuple> extractedValues = extract(employeeSet, byName("id", "name.first", "age"));
assertThat(extractedValues).containsOnly(tuple(1L, "Yoda", 800), tuple(2L, "Luke", 26));
}
@Test
public void should_extract_tuples_with_null_value_for_null_nested_field_or_property() {
luke.setName(null);
assertThat(extract(employees, byName("id", "name.first", "age"))).containsOnly(tuple(1L, "Yoda", 800), tuple(2L, null, 26));
assertThat(extract(employees, byName("name.first"))).containsOnly("Yoda", null);
assertThat(extract(employees, byName("id", "surname.first"))).containsOnly(tuple(1L, "Master"), tuple(2L, null));
}
@Test
public void should_throw_error_when_no_property_nor_public_field_match_one_of_given_names() {
thrown.expect(IntrospectionError.class);
extract(employees, byName("id", "age", "unknown"));
}
@Test
public void should_throw_exception_when_given_name_is_null() {
thrown.expectIllegalArgumentException("The names of the fields/properties to read should not be null");
extract(employees, byName((String[]) null));
}
@Test
public void should_throw_exception_when_given_name_is_empty() {
thrown.expectIllegalArgumentException("The names of the fields/properties to read should not be empty");
extract(employees, byName(new String[0]));
}
}