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How to use doFlatExtracting method of org.assertj.core.api.AbstractObjectArrayAssert class

Best Assertj code snippet using org.assertj.core.api.AbstractObjectArrayAssert.doFlatExtracting

Source:AbstractObjectArrayAssert.java

...2185   * @return a new assertion object whose object under test is the list of values extracted2186   */2187  @CheckReturnValue2188  public <V, C extends Collection<V>> AbstractListAssert<?, List<? extends V>, V, ObjectAssert<V>> flatExtracting(Function<? super ELEMENT, C> extractor) {2189    return doFlatExtracting(extractor);2190  }2191  /**2192   * Extract the Iterable values from arrays elements under test by applying an Iterable extracting function (which2193   * might throw an exception) on them and concatenating the result lists into an array which becomes the new object2194   * under test.2195   * <p>2196   * It allows testing the results of extracting values that are represented by Iterables.2197   * <p>2198   * For example:2199   * <pre><code class='java'> CartoonCharacter bart = new CartoonCharacter("Bart Simpson");2200   * CartoonCharacter lisa = new CartoonCharacter("Lisa Simpson");2201   * CartoonCharacter maggie = new CartoonCharacter("Maggie Simpson");2202   * CartoonCharacter homer = new CartoonCharacter("Homer Simpson");2203   * homer.addChildren(bart, lisa, maggie);2204   *2205   * CartoonCharacter pebbles = new CartoonCharacter("Pebbles Flintstone");2206   * CartoonCharacter fred = new CartoonCharacter("Fred Flintstone");2207   * fred.getChildren().add(pebbles);2208   *2209   * CartoonCharacter[] parents = new CartoonCharacter[] { homer, fred };2210   * // check children2211   * assertThat(parents).flatExtracting(input -&gt; {2212   *   if (input.getChildren().size() == 0) {2213   *     throw new Exception("no children");2214   *   }2215   *   return input.getChildren();2216   * }).containsOnly(bart, lisa, maggie, pebbles);</code></pre>2217   *2218   * The order of extracted values is consisted with both the order of the collection itself, as well as the extracted2219   * collections.2220   *2221   * @param <V> the type of elements to extract.2222   * @param <C> the type of collection to flat/extract.2223   * @param <EXCEPTION> the exception type of {@link ThrowingExtractor}2224   * @param extractor the object transforming input object to an Iterable of desired ones2225   * @return a new assertion object whose object under test is the list of values extracted2226   * @since 3.7.02227   */2228  @CheckReturnValue2229  public <V, C extends Collection<V>, EXCEPTION extends Exception> AbstractListAssert<?, List<? extends V>, V, ObjectAssert<V>> flatExtracting(ThrowingExtractor<? super ELEMENT, C, EXCEPTION> extractor) {2230    return doFlatExtracting(extractor);2231  }2232  private <V, C extends Collection<V>> AbstractListAssert<?, List<? extends V>, V, ObjectAssert<V>> doFlatExtracting(Function<? super ELEMENT, C> extractor) {2233    List<V> result = FieldsOrPropertiesExtractor.extract(Arrays.asList(actual), extractor).stream()2234                                                .flatMap(Collection::stream).collect(toList());2235    return newListAssertInstance(result).withAssertionState(myself);2236  }2237  /**2238   * Extract from array's elements the Iterable/Array values corresponding to the given property/field name and2239   * concatenate them into a single array becoming the new object under test.2240   * <p>2241   * It allows testing the elements of extracting values that are represented by iterables or arrays.2242   * <p>2243   * For example:2244   * <pre><code class='java'> CartoonCharacter bart = new CartoonCharacter("Bart Simpson");2245   * CartoonCharacter lisa = new CartoonCharacter("Lisa Simpson");2246   * CartoonCharacter maggie = new CartoonCharacter("Maggie Simpson");...

doFlatExtracting

Using AI Code Generation

1package org.assertj.core.api;2import java.util.List;3import java.util.Map;4import java.util.function.Function;5import java.util.function.Predicate;6import org.assertj.core.groups.Tuple;7import org.assertj.core.internal.Iterables;8import org.assertj.core.internal.Maps;9import org.assertj.core.util.CheckReturnValue;10import org.assertj.core.util.VisibleForTesting;11 *     target="_blank">Emulating 'self types' using Java Generics to simplify fluent API implementation</a>&quot;

doFlatExtracting

Using AI Code Generation

1assertThat(new String[]{"a", "b", "c"}).doFlatExtracting(String::toUpperCase).contains("A", "B", "C");2assertThat(Arrays.asList("a", "b", "c")).doFlatExtracting(String::toUpperCase).contains("A", "B", "C");3assertThat(new String[]{"a", "b", "c"}).doFlatExtracting(String::toUpperCase).contains("A", "B", "C");4assertThat(Stream.of("a", "b", "c")).doFlatExtracting(String::toUpperCase).contains("A", "B", "C");5assertThat(Arrays.asList("a", "b", "c")).doFlatExtracting(String::toUpperCase).contains("A", "B", "C");6assertThat(Stream.of("a", "b", "c")).doFlatExtracting(String::toUpperCase).contains("A", "B", "C");7assertThat(Arrays.asList("a", "b", "c")).doFlatExtracting(String::toUpperCase).contains("A", "B", "C");8assertThat(new String[]{"a", "b", "c"}).doFlatExtracting(String::toUpperCase).contains("A", "B", "C");9assertThat(Arrays.asList("a", "b", "c")).doFlatExtracting(String::toUpperCase).contains("A", "B", "C");10assertThat(new String[]{"a", "b", "c"}).doFlatExtracting(String::toUpperCase).contains("A", "B", "C");11assertThat(Stream.of("a", "b", "c")).doFlatExtracting(String::toUpperCase).contains("A", "B", "C");12assertThat(Arrays.asList("a", "b", "c")).doFlatExtracting(String::toUpperCase).contains("A", "B", "C");13assertThat(Stream.of("a", "b

doFlatExtracting

Using AI Code Generation

1import static org.assertj.core.api.Assertions.*;2import org.junit.Test;3public class DoFlatExtractingTest {4    public void testDoFlatExtracting() {5        Object[][][] array = new Object[][][]{{{1, 2, 3}, {4, 5, 6}}, {{7, 8, 9}, {10, 11, 12}}};6        assertThat(array).doFlatExtracting(Object[].class, Object[].class, Object[].class)7                .containsExactly(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);8    }9}10Actual   :[Ljava.lang.Object;@e8d6a211import static org.assertj.core.api.Assertions.*;12import java.util.stream.Stream;13import org.junit.Test;14public class DoFlatExtractingTest {15    public void testDoFlatExtracting() {16        Object[][][] array = new Object[][][]{{{1, 2, 3}, {4, 5, 6}}, {{7, 8, 9}, {10, 11, 12}}};17        assertThat(Stream.of(array)).doFlatExtracting(Object[].class, Object[].class, Object[].class)18                .containsExactly(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12);19    }20}

doFlatExtracting

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.junit.Test;3public class AbstractObjectArrayAssertTest {4    public void testDoFlatExtracting() {5        String[] names = {"John", "Jane", "Janet"};6        Object[] extracted = Assertions.assertThat(names).as("Extracting first letter of names")7                .doFlatExtracting(name -> name.substring(0, 1))8                .toArray();9        Assertions.assertThat(extracted).containsExactly("J", "J", "J");10    }11}

doFlatExtracting

Using AI Code Generation

1Object[] objArray = new Object[] { "Java", "C", "C++", "Python", "Ruby" };2Object[] objArray2 = new Object[] { "Java", "C", "C++", "Python", "Ruby" };3Object[] objArray3 = new Object[] { "Java", "C", "C++", "Python", "Ruby" };4Object[] objArray4 = new Object[] { "Java", "C", "C++", "Python", "Ruby" };5Object[] objArray5 = new Object[] { "Java", "C", "C++", "Python", "Ruby" };6Object[] objArray6 = new Object[] { "Java", "C", "C++", "Python", "Ruby" };7Object[] objArray7 = new Object[] { "Java", "C", "C++", "Python", "Ruby" };8Object[] objArray8 = new Object[] { "Java", "C", "C++", "Python", "Ruby" };9Object[] objArray9 = new Object[] { "Java", "C", "C++", "Python", "Ruby" };10Object[] objArray10 = new Object[] { "Java", "C", "C++", "Python", "Ruby" };11Object[] objArray11 = new Object[] { "Java", "C", "C++", "Python", "Ruby" };12Object[] objArray12 = new Object[] { "Java", "C", "C++", "Python", "Ruby" };13Object[] objArray13 = new Object[] { "Java", "C", "C++", "Python", "Ruby" };14Object[] objArray14 = new Object[] { "Java", "C", "C++", "Python", "Ruby" };15Object[] objArray15 = new Object[] { "Java", "C", "C++", "Python", "Ruby" };

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