Best Assertj code snippet using org.assertj.core.api.AbstractIterableAssert.specification
Source: AbstractIterableAssert.java
...992 * Extract the result of given method invocation on the Iterable's elements under test into a new Iterable, this new993 * Iterable becoming the Iterable under test.994 * <p>995 * It allows you to test the method results of the Iterable's elements instead of testing the elements themselves. This996 * is especially useful for classes that do not conform to the Java Bean's getter specification (i.e. public String997 * toString() or public String status() instead of public String getStatus()).998 * <p>999 * Let's take a look at an example to make things clearer:1000 * <pre><code class='java'> // Build an array of WesterosHouse, a WesterosHouse has a method: public String sayTheWords()1001 *1002 * List<WesterosHouse> greatHouses = new ArrayList<WesterosHouse>();1003 * greatHouses.add(new WesterosHouse("Stark", "Winter is Coming"));1004 * greatHouses.add(new WesterosHouse("Lannister", "Hear Me Roar!"));1005 * greatHouses.add(new WesterosHouse("Greyjoy", "We Do Not Sow"));1006 * greatHouses.add(new WesterosHouse("Baratheon", "Our is the Fury"));1007 * greatHouses.add(new WesterosHouse("Martell", "Unbowed, Unbent, Unbroken"));1008 * greatHouses.add(new WesterosHouse("Tyrell", "Growing Strong"));1009 *1010 * // let's verify the words of the great houses of Westeros:1011 * assertThat(greatHouses).extractingResultOf("sayTheWords")1012 * .contains("Winter is Coming", "We Do Not Sow", "Hear Me Roar")1013 * .doesNotContain("Lannisters always pay their debts");</code></pre>1014 *1015 * Following requirements have to be met to extract method results:1016 * <ul>1017 * <li>method has to be public,</li>1018 * <li>method cannot accept any arguments,</li>1019 * <li>method cannot return void.</li>1020 * </ul>1021 * <p>1022 * Note that the order of extracted results is consistent with the iteration order of the Iterable under test, for1023 * example if it's a {@link HashSet}, you won't be able to make any assumptions on the extracted results order.1024 *1025 * @param method the name of the method which result is to be extracted from the array under test1026 * @return a new assertion object whose object under test is the Iterable of extracted values.1027 * @throws IllegalArgumentException if no method exists with the given name, or method is not public, or method does1028 * return void, or method accepts arguments.1029 */1030 @CheckReturnValue1031 public AbstractListAssert<?, List<? extends Object>, Object, ObjectAssert<Object>> extractingResultOf(String method) {1032 // can't refactor by calling extractingResultOf(method, Object.class) as SoftAssertion would fail1033 List<Object> values = FieldsOrPropertiesExtractor.extract(actual, resultOf(method));1034 String extractedDescription = extractedDescriptionOfMethod(method);1035 String description = mostRelevantDescription(info.description(), extractedDescription);1036 return newListAssertInstanceForMethodsChangingElementType(values).as(description);1037 }1038 /**1039 * Extract the result of given method invocation on the Iterable's elements under test into a new list of the given1040 * class, this new List becoming the object under test.1041 * <p>1042 * It allows you to test the method results of the Iterable's elements instead of testing the elements themselves, it1043 * is especially useful for classes that do not conform to the Java Bean's getter specification (i.e. public String1044 * toString() or public String status() instead of public String getStatus()).1045 * <p>1046 * Let's take an example to make things clearer:1047 * <pre><code class='java'> // Build an array of WesterosHouse, a WesterosHouse has a method: public String sayTheWords()1048 * List<WesterosHouse> greatHouses = new ArrayList<WesterosHouse>();1049 * greatHouses.add(new WesterosHouse("Stark", "Winter is Coming"));1050 * greatHouses.add(new WesterosHouse("Lannister", "Hear Me Roar!"));1051 * greatHouses.add(new WesterosHouse("Greyjoy", "We Do Not Sow"));1052 * greatHouses.add(new WesterosHouse("Baratheon", "Our is the Fury"));1053 * greatHouses.add(new WesterosHouse("Martell", "Unbowed, Unbent, Unbroken"));1054 * greatHouses.add(new WesterosHouse("Tyrell", "Growing Strong"));1055 *1056 * // let's verify the words of the great houses of Westeros:1057 * assertThat(greatHouses).extractingResultOf("sayTheWords", String.class)...
specification
Using AI Code Generation
1assertThat(employees).usingElementComparatorOnFields("name", "age").containsOnly(2 new Employee("John", 30),3 new Employee("Jane", 35)4);5assertThat(employees).usingElementComparatorIgnoringFields("id").containsOnly(6 new Employee(1L, "John", 30),7 new Employee(2L, "Jane", 35)8);9assertThat(employees).usingElementComparatorIgnoringFields("id", "name").containsOnly(10 new Employee(1L, "John", 30),11 new Employee(2L, "Jane", 35)12);13assertThat(employees).usingElementComparatorIgnoringFields("id").containsOnly(14 new Employee(1L, "John", 30),15 new Employee(2L, "Jane", 35)16);17assertThat(employees).usingElementComparatorIgnoringFields("id", "name").containsOnly(18 new Employee(1L, "John", 30),19 new Employee(2L, "Jane", 35)20);21assertThat(employees).usingElementComparatorIgnoringFields("id").containsOnly(22 new Employee(1L, "John", 30),23 new Employee(2L, "Jane", 35)24);25assertThat(employees).usingElementComparatorIgnoringFields("id", "name").containsOnly(26 new Employee(1L, "John", 30),27 new Employee(2L, "Jane", 35)28);29assertThat(employees).usingElementComparatorIgnoringFields("id").containsOnly(30 new Employee(1L, "John", 30),31 new Employee(2L, "Jane", 35)32);33assertThat(employees).usingElementComparatorIgnoringFields("id", "name").containsOnly(34 new Employee(1L, "John", 30),35 new Employee(2L, "Jane", 35)36);37assertThat(employees).usingElementComparatorIgnoringFields("id").containsOnly(38 new Employee(1L, "John", 30),39 new Employee(2L, "Jane", 35)40);41assertThat(employees).usingElementComparatorIgnoringFields("id", "name").containsOnly(42 new Employee(1L, "John", 30),43 new Employee(2L, "Jane", 35)44);45assertThat(employees).usingElementComparatorIgnoringFields("id").containsOnly
specification
Using AI Code Generation
1public AbstractIterableAssert(S actual,2protected A returnThis()3protected A newAssertionInstance(S actual)4protected A newAssertionInstance(S actual,5protected A newAssertionInstance(S actual,6protected A newAssertionInstance(S actual,7protected A newAssertionInstance(S actual,8protected A newAssertionInstance(S actual,9protected A newAssertionInstance(S actual,10protected A newAssertionInstance(S actual,11protected A newAssertionInstance(S actual,12protected A newAssertionInstance(S actual,13protected A newAssertionInstance(S actual,14protected A newAssertionInstance(S actual,15protected A newAssertionInstance(S actual,16protected A newAssertionInstance(S
specification
Using AI Code Generation
1public class AssertJTest {2 public void testAssertJ() {3 List<Integer> actual = Arrays.asList(1, 2, 3, 4, 5);4 List<Integer> expected = Arrays.asList(1, 2, 3, 4, 5);5 assertThat(actual).containsExactlyElementsOf(expected);6 }7}
specification
Using AI Code Generation
1import static org.assertj.core.api.Assertions.assertThat;2import java.util.ArrayList;3import java.util.List;4public class AssertJTest {5 public static void main(String[] args) {6 List<String> list = new ArrayList<>();7 list.add("One");8 list.add("Two");9 list.add("Three");10 list.add("Four");11 list.add("Five");12 assertThat(list)13 .hasSize(5)14 .contains("One", "Two")15 .doesNotContain("Six")16 .allMatch(s -> s.length() > 2)17 .noneMatch(s -> s.length() > 5);18 }19}20Assertion Description allMatch(Predicate<? super ELEMENT> predicate) verifies that all elements of the actual iterable satisfy the given predicate. anyMatch(Predicate<? super ELEMENT> predicate) verifies that at least one element of the actual iterable satisfies the given predicate. contains(Object... values) verifies that the actual iterable contains the given values, in any order. containsOnly(Object... values) verifies that the actual iterable contains only the given values and nothing else, in any order. containsOnlyElementsOf(Iterable<?> iterable) verifies that the actual iterable contains only the elements of the given iterable and nothing else, in any order. containsOnlyOnce(Object... values) verifies that the actual iterable contains only the given values and nothing else, and each value appears exactly once. containsSequence(Object... sequence) verifies that the actual iterable contains the given sequence, without any other values between them. containsSubsequence(Object... subsequence) verifies that the actual iterable contains the given subsequence, with any other values between them. containsExactly(Object... values) verifies that the actual iterable contains exactly the given values and nothing else, with elements in the same order. containsExactlyElementsOf(Iterable<?> iterable) verifies that the actual iterable contains exactly the elements of the given iterable and nothing else, with elements in the same order. containsExactlyInAnyOrder(Object... values) verifies that the actual iterable contains exactly the given values and nothing else, with elements in any order. containsExactlyInAnyOrderElementsOf(Iterable<?> iterable) verifies that the actual iterable contains exactly the elements of the given iterable and nothing else, with elements
Check out the latest blogs from LambdaTest on this topic:
Agile has unquestionable benefits. The mainstream method has assisted numerous businesses in increasing organizational flexibility as a result, developing better, more intuitive software. Distributed development is also an important strategy for software companies. It gives access to global talent, the use of offshore outsourcing to reduce operating costs, and round-the-clock development.
Did you know that according to Statista, the number of smartphone users will reach 18.22 billion by 2025? Let’s face it, digital transformation is skyrocketing and will continue to do so. This swamps the mobile app development market with various options and gives rise to the need for the best mobile app testing tools
The count of mobile users is on a steep rise. According to the research, by 2025, it is expected to reach 7.49 billion users worldwide. 70% of all US digital media time comes from mobile apps, and to your surprise, the average smartphone owner uses ten apps per day and 30 apps each month.
Collecting and examining data from multiple sources can be a tedious process. The digital world is constantly evolving. To stay competitive in this fast-paced environment, businesses must frequently test their products and services. While it’s easy to collect raw data from multiple sources, it’s far more complex to interpret it properly.
Software testing is fueling the IT sector forward by scaling up the test process and continuous product delivery. Currently, this profession is in huge demand, as it needs certified testers with expertise in automation testing. When it comes to outsourcing software testing jobs, whether it’s an IT company or an individual customer, they all look for accredited professionals. That’s why having an software testing certification has become the need of the hour for the folks interested in the test automation field. A well-known certificate issued by an authorized institute kind vouches that the certificate holder is skilled in a specific technology.
Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.
You could also refer to video tutorials over LambdaTest YouTube channel to get step by step demonstration from industry experts.
Get 100 minutes of automation test minutes FREE!!