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 Github

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...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");...

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doFlatExtracting

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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;

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doFlatExtracting

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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

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doFlatExtracting

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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}

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doFlatExtracting

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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}

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doFlatExtracting

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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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