How to use classNameOf method of org.assertj.core.presentation.StandardRepresentation class

Best Assertj code snippet using org.assertj.core.presentation.StandardRepresentation.classNameOf

Source:StandardRepresentation.java

...219  @Override220  public String unambiguousToStringOf(Object obj) {221    // some types have already an unambiguous toString, no need to double down222    if (hasAlreadyAnUnambiguousToStringOf(obj)) return toStringOf(obj);223    return obj == null ? null : String.format("%s (%s@%s)", toStringOf(obj), classNameOf(obj), identityHexCodeOf(obj));224  }225  @Override226  public String toString() {227    return this.getClass().getSimpleName();228  }229  @SuppressWarnings("unchecked")230  protected <T> String customFormat(T object) {231    if (object == null) return null;232    return ((Function<T, String>) customFormatterByType.get(object.getClass())).apply(object);233  }234  protected boolean hasCustomFormatterFor(Object object) {235    if (object == null) return false;236    return customFormatterByType.containsKey(object.getClass());237  }238  /**239   * Determine whether the given object's type has a representation that is not ambiguous.240   * @param obj the object to check241   * @return true if the given object's type has a representation that is not ambiguous, false otherwise.242   */243  // not static so that it can be overridden244  protected boolean hasAlreadyAnUnambiguousToStringOf(Object obj) {245    for (int i = 0; i < TYPE_WITH_UNAMBIGUOUS_REPRESENTATION.length; i++) {246      if (TYPE_WITH_UNAMBIGUOUS_REPRESENTATION[i].isInstance(obj)) return true;247    }248    return false;249  }250  /**251   * Returns the {@code String} representation of the given object. This method is used as a last resort if none of252   * the {@link StandardRepresentation} predefined string representations were not called.253   *254   * @param object the object to represent (never {@code null}255   * @return to {@code toString} representation for the given object256   */257  protected String fallbackToStringOf(Object object) {258    return object.toString();259  }260  protected String toStringOf(Number number) {261    if (number instanceof Float) return toStringOf((Float) number);262    if (number instanceof Long) return toStringOf((Long) number);263    // fallback to default formatting264    return number.toString();265  }266  protected String toStringOf(AtomicBoolean atomicBoolean) {267    return String.format("AtomicBoolean(%s)", atomicBoolean.get());268  }269  protected String toStringOf(AtomicInteger atomicInteger) {270    return String.format("AtomicInteger(%s)", atomicInteger.get());271  }272  protected String toStringOf(AtomicLong atomicLong) {273    return String.format("AtomicLong(%s)", atomicLong.get());274  }275  protected String toStringOf(LongAdder longAdder) {276    return String.format("LongAdder(%s)", longAdder.sum());277  }278  protected String toStringOf(Comparator<?> comparator) {279    if (!comparator.toString().contains("@")) return comparator.toString();280    String comparatorSimpleClassName = comparator.getClass().getSimpleName();281    if (comparatorSimpleClassName.length() == 0) return quote("anonymous comparator class");282    // if toString has not been redefined, let's use comparator simple class name.283    if (comparator.toString().contains(comparatorSimpleClassName + "@")) return comparatorSimpleClassName;284    return comparator.toString();285  }286  protected String toStringOf(ComparatorBasedComparisonStrategy comparatorBasedComparisonStrategy) {287    String comparatorDescription = comparatorBasedComparisonStrategy.getComparatorDescription();288    return comparatorDescription == null ? toStringOf(comparatorBasedComparisonStrategy.getComparator())289        : quote(comparatorDescription);290  }291  protected String toStringOf(Calendar calendar) {292    return formatAsDatetime(calendar) + classNameDisambiguation(calendar);293  }294  protected String toStringOf(Class<?> c) {295    return c.getCanonicalName();296  }297  protected String toStringOf(String s) {298    return concat("\"", s, "\"");299  }300  protected String toStringOf(Character c) {301    return concat("'", c, "'");302  }303  protected String toStringOf(PredicateDescription p) {304    // don't enclose default description with ''305    return p.isDefault() ? String.format("%s", p.description) : String.format("'%s'", p.description);306  }307  protected String toStringOf(Date date) {308    return formatAsDatetimeWithMs(date) + classNameDisambiguation(date);309  }310  protected String toStringOf(LocalDateTime localDateTime) {311    return defaultToStringWithClassNameDisambiguation(localDateTime);312  }313  protected String toStringOf(OffsetDateTime offsetDateTime) {314    return defaultToStringWithClassNameDisambiguation(offsetDateTime);315  }316  protected String toStringOf(ZonedDateTime zonedDateTime) {317    return defaultToStringWithClassNameDisambiguation(zonedDateTime);318  }319  protected String toStringOf(LocalDate localDate) {320    return defaultToStringWithClassNameDisambiguation(localDate);321  }322  protected String classNameDisambiguation(Object o) {323    return String.format(" (%s)", o.getClass().getName());324  }325  protected String toStringOf(Float f) {326    return String.format("%sf", f);327  }328  protected String toStringOf(Long l) {329    return String.format("%sL", l);330  }331  protected String toStringOf(File file) {332    return file.getAbsolutePath();333  }334  protected String toStringOf(SimpleDateFormat dateFormat) {335    return dateFormat.toPattern();336  }337  protected String toStringOf(Future<?> future) {338    String className = future.getClass().getSimpleName();339    if (!future.isDone()) return concat(className, "[Incomplete]");340    try {341      Object joinResult = future.get();342      // avoid stack overflow error if future join on itself or another future that cycles back to the first343      Object joinResultRepresentation = joinResult instanceof Future ? joinResult : toStringOf(joinResult);344      return concat(className, "[Completed: ", joinResultRepresentation, "]");345    } catch (CancellationException e) {346      return concat(className, "[Cancelled]");347    } catch (InterruptedException e) {348      return concat(className, "[Interrupted]");349    } catch (ExecutionException e) {350      // get the stack trace of the cause (if any) to avoid polluting it with the exception from trying to join the future351      String stackTrace = e.getCause() != null ? getStackTrace(e.getCause()) : getStackTrace(e);352      return concat(className, "[Failed with the following stack trace:", String.format("%n%s", stackTrace), "]");353    }354  }355  protected String toStringOf(Tuple tuple) {356    return singleLineFormat(tuple.toList(), TUPLE_START, TUPLE_END);357  }358  protected String toStringOf(MapEntry<?, ?> mapEntry) {359    return String.format("MapEntry[key=%s, value=%s]", toStringOf(mapEntry.key), toStringOf(mapEntry.value));360  }361  protected String toStringOf(Map<?, ?> map) {362    if (map == null) return null;363    Map<?, ?> sortedMap = toSortedMapIfPossible(map);364    Iterator<?> entriesIterator = sortedMap.entrySet().iterator();365    if (!entriesIterator.hasNext()) return "{}";366    StringBuilder builder = new StringBuilder("{");367    int printedElements = 0;368    for (;;) {369      Entry<?, ?> entry = (Entry<?, ?>) entriesIterator.next();370      if (printedElements == maxElementsForPrinting) {371        builder.append(DEFAULT_MAX_ELEMENTS_EXCEEDED);372        return builder.append("}").toString();373      }374      builder.append(format(map, entry.getKey())).append('=').append(format(map, entry.getValue()));375      printedElements++;376      if (!entriesIterator.hasNext()) return builder.append("}").toString();377      builder.append(", ");378    }379  }380  protected String toStringOf(AtomicReference<?> atomicReference) {381    return String.format("AtomicReference[%s]", toStringOf(atomicReference.get()));382  }383  protected String toStringOf(AtomicMarkableReference<?> atomicMarkableReference) {384    return String.format("AtomicMarkableReference[marked=%s, reference=%s]", atomicMarkableReference.isMarked(),385                         toStringOf(atomicMarkableReference.getReference()));386  }387  protected String toStringOf(AtomicStampedReference<?> atomicStampedReference) {388    return String.format("AtomicStampedReference[stamp=%s, reference=%s]", atomicStampedReference.getStamp(),389                         toStringOf(atomicStampedReference.getReference()));390  }391  protected String multiLineFormat(Iterable<?> iterable) {392    return format(iterable, DEFAULT_START, DEFAULT_END, ELEMENT_SEPARATOR_WITH_NEWLINE, INDENTATION_AFTER_NEWLINE, iterable);393  }394  protected String singleLineFormat(Iterable<?> iterable, String start, String end) {395    return format(iterable, start, end, ELEMENT_SEPARATOR, INDENTATION_FOR_SINGLE_LINE, iterable);396  }397  /**398   * Returns the {@code String} representation of the given {@code Iterable}, or {@code null} if the given399   * {@code Iterable} is {@code null}.400   * <p>401   * The {@code Iterable} will be formatted to a single line if it does not exceed 100 char, otherwise each elements402   * will be formatted on a new line with 4 space indentation.403   *404   * @param iterable the {@code Iterable} to format.405   * @return the {@code String} representation of the given {@code Iterable}.406   */407  protected String smartFormat(Iterable<?> iterable) {408    String singleLineDescription = singleLineFormat(iterable, DEFAULT_START, DEFAULT_END);409    return doesDescriptionFitOnSingleLine(singleLineDescription) ? singleLineDescription : multiLineFormat(iterable);410  }411  /**412   * Returns the {@code String} representation of the given array, or {@code null} if the given object is either413   * {@code null} or not an array. This method supports arrays having other arrays as elements.414   *415   * @param o the object that is expected to be an array.416   * @return the {@code String} representation of the given array.417   */418  protected String formatArray(Object o) {419    if (!isArray(o)) return null;420    return isObjectArray(o) ? smartFormat((Object[]) o) : formatPrimitiveArray(o);421  }422  protected String smartFormat(Object[] array) {423    String description = singleLineFormat(array, array);424    return doesDescriptionFitOnSingleLine(description) ? description : multiLineFormat(array, array);425  }426  protected String formatPrimitiveArray(Object o) {427    if (!isArrayTypePrimitive(o)) throw notAnArrayOfPrimitives(o);428    Object[] array = toObjectArray(o);429    return format(array, DEFAULT_START, DEFAULT_END, ELEMENT_SEPARATOR, INDENTATION_FOR_SINGLE_LINE, array);430  }431  protected String multiLineFormat(Object[] array, Object root) {432    return format(array, DEFAULT_START, DEFAULT_END, ELEMENT_SEPARATOR_WITH_NEWLINE, INDENTATION_AFTER_NEWLINE, root);433  }434  protected String singleLineFormat(Object[] array, Object root) {435    return format(array, DEFAULT_START, DEFAULT_END, ELEMENT_SEPARATOR, INDENTATION_FOR_SINGLE_LINE, root);436  }437  protected String format(Object[] array, String start, String end, String elementSeparator, String indentation, Object root) {438    if (array == null) return null;439    // root is used to avoid infinite recursion in case one element refers to it.440    List<String> representedElements = representElements(Stream.of(array), start, end, elementSeparator, indentation, root);441    return representGroup(representedElements, start, end, elementSeparator, indentation);442  }443  protected String format(Iterable<?> iterable, String start, String end, String elementSeparator, String indentation,444                          Object root) {445    if (iterable == null) return null;446    Iterator<?> iterator = iterable.iterator();447    if (!iterator.hasNext()) return start + end;448    // alreadyVisited is used to avoid infinite recursion when one element is a container already visited449    List<String> representedElements = representElements(stream(iterable), start, end, elementSeparator, indentation, root);450    return representGroup(representedElements, start, end, elementSeparator, indentation);451  }452  protected String safeStringOf(Object element, String start, String end, String elementSeparator, String indentation,453                                Object root) {454    if (element == root) return isArray(root) ? "(this array)" : "(this instance)";455    // Since potentially self referencing containers have been handled, it is reasonably safe to use toStringOf.456    // What we don't track are cycles like A -> B -> A but that should be rare enough thus this solution is good enough457    // To fully avoid all cycles we would need to track all visited elements but the issue is that:458    // List<Object> innerList = list(1, 2, 3);459    // List<Object> outerList = list(innerList, innerList);460    // outerList would be represented as [[1, 2, 3], (already visited)] instead of [[1, 2, 3], [1, 2, 3]]461    // Final word, the approach used here is the same as the toString implementation in AbstractCollection462    return element == null ? NULL : toStringOf(element);463  }464  // private methods465  private List<String> representElements(Stream<?> elements, String start, String end, String elementSeparator,466                                         String indentation, Object root) {467    return elements.map(element -> safeStringOf(element, start, end, elementSeparator, indentation, root))468                   .collect(toList());469  }470  // this method only deals with max number of elements to display, the elements representation is already computed471  private static String representGroup(List<String> representedElements, String start, String end, String elementSeparator,472                                       String indentation) {473    int size = representedElements.size();474    StringBuilder desc = new StringBuilder(start);475    if (size <= maxElementsForPrinting) {476      // display all elements477      for (int i = 0; i < size; i++) {478        if (i != 0) desc.append(indentation);479        desc.append(representedElements.get(i));480        if (i != size - 1) desc.append(elementSeparator);481      }482      return desc.append(end).toString();483    }484    // we can't display all elements, picks the first and last maxElementsForPrinting/2 elements485    // if maxElementsForPrinting is odd, display one more first elements than last, ex: 9 => display 5 first elements and 4 last486    int maxFirstElementsToPrint = (maxElementsForPrinting + 1) / 2;487    for (int i = 0; i < maxFirstElementsToPrint; i++) {488      desc.append(representedElements.get(i)).append(elementSeparator).append(indentation);489    }490    desc.append(DEFAULT_MAX_ELEMENTS_EXCEEDED);491    // we only append a new line if the separator had one ",\n"492    if (elementSeparator.contains(System.lineSeparator())) {493      // we just want a new line after DEFAULT_MAX_ELEMENTS_EXCEEDED but no char separator ','494      // we want:495      // first elements,496      // ...497      // last elements498      // and not:499      // first elements,500      // ...,501      // last elements502      desc.append(System.lineSeparator());503    }504    // display last elements505    int maxLastElementsToPrint = maxElementsForPrinting / 2;506    for (int i = size - maxLastElementsToPrint; i < size; i++) {507      if (i != size - maxLastElementsToPrint) desc.append(elementSeparator);508      desc.append(indentation).append(representedElements.get(i));509    }510    return desc.append(end).toString();511  }512  private String toStringOf(ChangeDelta<?> changeDelta) {513    return String.format("Changed content at line %s:%nexpecting:%n  %s%nbut was:%n  %s%n",514                         changeDelta.lineNumber(),515                         formatLines(changeDelta.getOriginal().getLines()),516                         formatLines(changeDelta.getRevised().getLines()));517  }518  private String toStringOf(DeleteDelta<?> deleteDelta) {519    return String.format("Missing content at line %s:%n  %s%n", deleteDelta.lineNumber(),520                         formatLines(deleteDelta.getOriginal().getLines()));521  }522  private String toStringOf(InsertDelta<?> insertDelta) {523    return String.format("Extra content at line %s:%n  %s%n", insertDelta.lineNumber(),524                         formatLines(insertDelta.getRevised().getLines()));525  }526  private String toStringOf(Duration duration) {527    return duration.toString().substring(2);528  }529  private String formatLines(List<?> lines) {530    return format(lines, DEFAULT_START, DEFAULT_END, ELEMENT_SEPARATOR_WITH_NEWLINE, "   ", lines);531  }532  private static boolean doesDescriptionFitOnSingleLine(String singleLineDescription) {533    return singleLineDescription == null || singleLineDescription.length() <= maxLengthForSingleLineDescription;534  }535  private static String identityHexCodeOf(Object obj) {536    return toHexString(System.identityHashCode(obj));537  }538  private static Object classNameOf(Object obj) {539    return obj.getClass().isAnonymousClass() ? obj.getClass().getName() : obj.getClass().getSimpleName();540  }541  private String defaultToStringWithClassNameDisambiguation(Object o) {542    return o.toString() + classNameDisambiguation(o);543  }544  private static Map<?, ?> toSortedMapIfPossible(Map<?, ?> map) {545    try {546      return new TreeMap<>(map);547    } catch (ClassCastException | NullPointerException e) {548      return map;549    }550  }551  private String format(Map<?, ?> map, Object o) {552    return o == map ? "(this Map)" : toStringOf(o);...

classNameOf

Using AI Code Generation

1import static org.assertj.core.api.Assertions.assertThat;2class Person {3  String name;4  int age;5}6class Test {7  public static void main(String[] args) {8    Person person = new Person();9    assertThat(person).isInstanceOf(Person.class);10  }11}12import static org.assertj.core.api.Assertions.assertThat;13class Person {14  String name;15  int age;16}17class Test {18  public static void main(String[] args) {19    Person person = new Person();20    assertThat(person).isInstanceOf(Person.class);21  }22}

classNameOf

Using AI Code Generation

1import org.assertj.core.api.Assertions;2import org.assertj.core.presentation.StandardRepresentation;3public class ClassNameOfObject {4    public static void main(String[] args) {5        StandardRepresentation representation = new StandardRepresentation();6        String className = representation.classNameOf(new ClassNameOfObject());7        Assertions.assertThat(className).isEqualTo("ClassNameOfObject");8    }9}

classNameOf

Using AI Code Generation

1import org.assertj.core.api.Assertions2import org.assertj.core.api.Assertions.assertThat3import org.assertj.core.presentation.StandardRepresentation4import org.junit.Test5class StandardRepresentationTest {6    fun testClassNameOf() {7        val standardRepresentation = StandardRepresentation()8        val result = standardRepresentation.classNameOf(ArrayList::class.java)9        assertThat(result).isEqualTo("ArrayList")10    }11}

classNameOf

Using AI Code Generation

1import org.assertj.core.api.Assertions.assertThat;2import org.assertj.core.api.Assertions;3import org.assertj.core.presentation.StandardRepresentation;4public class TestAssertJ {5    public static void main(String[] args) {6        StandardRepresentation representation = new StandardRepresentation();7        assertThat(representation.toStringOf(new String[]{"abc"})).isEqualTo("[\"abc\"]");8        assertThat(representation.toStringOf(new String[]{"abc","def"})).isEqualTo("[\"abc\", \"def\"]");9        assertThat(representation.toStringOf(new String[]{"abc","def","ghi"})).isEqualTo("[\"abc\", \"def\", \"ghi\"]");10        assertThat(representation.toStringOf(new String[]{"abc","def","ghi","jkl"})).isEqualTo("[\"abc\", \"def\", \"ghi\", \"jkl\"]");11        assertThat(representation.toStringOf(new String[]{"abc","def","ghi","jkl","mno"})).isEqualTo("[\"abc\", \"def\", \"ghi\", \"jkl\", \"mno\"]");12        assertThat(representation.toStringOf(new String[]{"abc","def","ghi","jkl","mno","pqr"})).isEqualTo("[\"abc\", \"def\", \"ghi\", \"jkl\", \"mno\", \"pqr\"]");13        assertThat(representation.toStringOf(new String[]{"abc","def","ghi","jkl","mno","pqr","stu"})).isEqualTo("[\"abc\", \"def\", \"ghi\", \"jkl\", \"mno\", \"pqr\", \"stu\"]");14        assertThat(representation.toStringOf(new String[]{"abc","def","ghi","jkl","mno","pqr","stu","vwx"})).isEqualTo("[\"abc\", \"def\", \"ghi\", \"jkl\", \"mno\", \"pqr\", \"stu\", \"vwx\"]");15        assertThat(representation.toStringOf(new String[]{"abc","def","ghi","jkl","mno","pqr","stu","vwx","yza"})).isEqualTo("[\"abc\", \"def\", \"ghi\", \"jkl\", \"mno\", \"pqr\", \"stu\", \"vwx\", \"yza\"]");16        assertThat(representation.toStringOf(new String[]{"abc","def","ghi","jkl","mno","pqr","stu","vwx","yza","bcd"})).isEqualTo("[\"abc\", \"def\", \"ghi\", \"jkl\", \"mno\", \"pqr\", \"stu\", \"vwx\", \"yza\", \"bcd\"]

classNameOf

Using AI Code Generation

1assertThat("foo").isInstanceOf(String.class);2assertThat("foo").isEqualTo("foo");3assertThat("foo").isNotEqualTo("bar");4assertThat("foo").isEqualTo("bar");5assertThat("foo").isNotEqualTo("foo");6assertThat("foo").isNotSameAs("foo");7assertThat("foo").isSameAs("foo");8assertThat("foo").isNotSameAs("bar");9assertThat("foo").isSameAs("bar");10assertThat("foo").isNotSameAs("foo");11assertThat("foo").isSameAs("foo");12assertThat("foo").isNotSameAs("bar");13assertThat("foo").isSameAs("bar");14assertThat("foo").isNotSameAs

classNameOf

Using AI Code Generation

1        String className = new StandardRepresentation().classNameOf(object);2        String className = new StandardRepresentation().classNameOf(object);3        String className = new HexadecimalRepresentation().classNameOf(object);4        String className = new HexadecimalRepresentation().classNameOf(object);5        String className = new UnicodeRepresentation().classNameOf(object);6        String className = new UnicodeRepresentation().classNameOf(object);7        String className = new StandardRepresentation().classNameOf(object);8        String className = new StandardRepresentation().classNameOf(object);9        String className = new HexadecimalRepresentation().classNameOf(object);10        String className = new HexadecimalRepresentation().classNameOf(object);11        String className = new UnicodeRepresentation().classNameOf(object);12        String className = new UnicodeRepresentation().classNameOf(object);13        String className = new StandardRepresentation().classNameOf(object);14        String className = new StandardRepresentation().classNameOf(object);15        String className = new HexadecimalRepresentation().classNameOf(object);16        String className = new HexadecimalRepresentation().classNameOf(object);17        String className = new UnicodeRepresentation().classNameOf(object);18        String className = new UnicodeRepresentation().classNameOf(object);19        String className = new StandardRepresentation().classNameOf(object);20        String className = new StandardRepresentation().classNameOf(object);21        String className = new HexadecimalRepresentation().classNameOf(object);22        String className = new HexadecimalRepresentation().classNameOf(object);23        String className = new UnicodeRepresentation().classNameOf(object);24        String className = new UnicodeRepresentation().classNameOf(object);

classNameOf

Using AI Code Generation

1    val classNameOf = StandardRepresentation().classNameOf("hello")2    val classNameOf2 = StandardRepresentation().classNameOf(1)3    val classNameOf3 = StandardRepresentation().classNameOf(1.0)4    val classNameOf4 = StandardRepresentation().classNameOf(1.0f)5    val classNameOf5 = StandardRepresentation().classNameOf(1L)6    val classNameOf6 = StandardRepresentation().classNameOf(1.toShort())7    val classNameOf7 = StandardRepresentation().classNameOf('a')8    val classNameOf8 = StandardRepresentation().classNameOf(true)9    val classNameOf9 = StandardRepresentation().classNameOf(byteArrayOf(1, 2, 3))10    val classNameOf10 = StandardRepresentation().classNameOf(shortArrayOf(1, 2, 3))11    val classNameOf11 = StandardRepresentation().classNameOf(intArrayOf(1, 2, 3))

classNameOf

Using AI Code Generation

1val className = representation.classNameOf(1)2val className = representation.as(1)3val className = representation.as(1)4val className = representation.as(1)5val className = representation.as(1)6val className = representation.as(1)7val className = representation.as(1)8val className = representation.as(1)9val className = representation.as(1)10val className = representation.as(1)11val className = representation.as(1)12val className = representation.as(1)13val className = representation.as(1)

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