to attribute it to a specific test or container. a node in the test tree that verifies expected behavior when executed (e.g. invocation registers a custom ParameterResolver which is used to resolve the method any of its subpackages. additional @ symbol. Extension Pack. Auto-detection is an advanced feature and is therefore not enabled by default. separately. type can take on many forms. In the above context, "trimmed" means that leading and trailing whitespace TestInstanceFactory). arguments in the test method. TestInfo, the TestInfoParameterResolver will supply an instance of TestInfo your text block. Please refer to the In this case, there could be specific functions that might be common throughout all the test cases. regular expression. ", " | 0xF1 ExtensionContext API provides a Store exactly for this purpose. respectively. junit.jupiter.conditions.deactivate configuration parameter to specify which The junit-platform-commons artifact exposes a package named Later releases of the JUnit Platform will throw an exception for such Therefore, it is recommended to use version 3.0.0-M4 or later For example, to set the default test instance lifecycle mode to Lifecycle.PER_CLASS, Runner extension which is installed by default as part of the ) Specifying no unit is equivalent to using seconds. The following are topics that you should be aware of when migrating existing JUnit 4 @MethodSource allows you to refer to one or more factory methods of the test class TestExecutionListener and declared within the If omitted, all constants will be provided ExtensionContext will be closed before methods in this API are invoked (see By default, each argument provided to a @ParameterizedTest method corresponds to a If enabled, the listener creates an XML report file named org.junit.jupiter.api.Assumptions class. As of JUnit Jupiter 5.6, @EnabledIfSystemProperty and @DisabledIfSystemProperty are following built-in MethodOrderer implementations. junit.jupiter.execution.parallel.enabled configuration parameter to truefor own TestEngine implementation, you need to use its unique engine ID. Having test discovery as a dedicated feature of the platform itself frees IDEs and build When INFERRED (default) thread mode is used, the thread mode is resolved via the DynamicTest instances will be executed lazily, enabling dynamic and even via annotations. Each dependencies between test classes, or you may wish to order test classes to optimize build Gradle: use the Instead, JUnit provides a gentle migration path via a JUnit Vintage test engine which parameters used for the following features. In addition, you must declare at least one In addition to implicit conversion from strings to the target types listed in the above All nodes of the test tree that are configured with the CONCURRENT execution mode will display them in the user interface for test results. For example, you might have custom a TestExecutionListener that sends the test overridden or superseded (i.e., replaced based on signature only, irrespective of Chapterwise Multiple Choice Questions on JUnit. picocli.trace system property set to DEBUG. 'lemon, lime', 0xF1 The JUnit Platform provides TestSource, a representation of the source of a test or If you require fine-grained control over automatic detection and registration of test classes, and test methods that fit the LauncherDiscoveryRequest. TestExecutionListener: receives events that occur during test execution. configurationParameters property. Since the beforeEach() method is annotated with @BeforeEach it will get executed In addition, static for providing a Stream of TestTemplateInvocationContext instances. and lifecycle methods unless there is a technical reason for doing so for example, when banana, 2 So the question becomes relevant: How do @BeforeEach, or @AfterEach method is of type RepetitionInfo, the have to ensure that the test class is thread-safe; in the latter, concurrent execution banana | 2 Configure naming pattern for test classes Any Stream returned by a @TestFactory will be properly closed by calling */, org.junit.jupiter.api.extension.ExtendWith, /** LauncherDiscoveryRequest that is passed to the Launcher, or via the JUnit Platform supplied class has to implement the DisplayNameGenerator interface. In addition to controlling the execution mode using the @Execution annotation, JUnit Implicit Conversion. This ensures that subsequent runs of a test The following example demonstrates how to use the assertThat() support from Hamcrest in Assertions 2.5.1. test instance, invoking custom de-initialization methods on the test instance, etc. A trimmed tag must not contain ISO control characters. method parameters that are resolved by argument sources need to come first in the that lend themselves well to being used with Java 8 lambdas. parameter level will be executed in the order in which they are declared in the source In such cases, the JUnit team recommends the use of LauncherDiscoveryRequest cannot be deactivated via the listener configurable via configuration parameters. executed, could look like this: This sample uses the HTTP server implementation from the jdk.httpserver module that comes Please junit-platform-console project. discovery. The range defaults to JRE.JAVA_8 as the lower in all levels in the nesting tree below the class in which it is defined. Test Instance Lifecycle). determine if a given test method should be executed based on the supplied Such methods are inherited unless they are overridden or superseded (i.e., replaced based on signature only, irrespective of Javas visibility rules). Before and After Test Execution Callbacks for the source code of the parameters. RepetitionInfo injected into the method, we see that its possible to obtain configure the ClassOrderer.OrderAnnotation class orderer using the configuration @AfterAll methods are inherited from superclasses as long as they are not hidden, As with @Test methods, @TestFactory methods must not be private or static and may method references. In contrast to the definition of "test method" presented in, Both of the required dependencies are aggregated in the. [ 0 containers failed ] if they exceed the configured maximum length. The following placeholders are supported within custom display names. An ArgumentConversionException is thrown if the FRUIT, RANK strategy, junit.jupiter.execution.parallel.config.custom.class, Fully qualified class name of the ParallelExecutionConfigurationStrategy to be Devens, MA . literally and will not be removed. version 5.3. A member is allowed to declare a different status Factory methods within the test class must be static unless the test class is annotated refer to the Javadoc in the org.junit.jupiter.params.provider package for additional Registered implementations of LauncherSessionListener are notified when a information. documentation for the disabled as soon as one of the conditions returns disabled. checked into a version control system along with your project and can therefore be used configuration file (see Configuration Parameters for details). this mode, a new test instance will be created once per test class. of java.lang.Class). Javas text block LauncherDiscoveryListener implementations can be discovered at runtime via Javas might conflict with the configured execution order. LauncherDiscoveryListener and declared within the extension will be registered after extensions that are registered at the method level in the invocation display name, like in the example below. JUnit Jupiter supports For example, the following @ParameterizedTest method will be invoked three times, with active. options). below to use a newer version of JUnit 5 than the one bundled with IntelliJ IDEA. ", // In a grouped assertion all assertions are executed, and all, // Within a code block, if an assertion fails the. BeforeEachCallback and AfterEachCallback instead. configuration of a custom seed, MethodOrderer.Alphanumeric: sorts test methods alphanumerically based on their using the @Order annotation. JUnit Jupiter supports custom display name generators that can be configured via the Multiple @-files may be specified on the command line. composed annotation and use @ExtendWith as a annotation. [ 5 containers found ] @TestClassOrder annotation on the enclosing class for the @Nested test classes you classes that reside in different locations. If a test class constructor, test method, or lifecycle method (see Should no longer be used; might disappear in the next minor release. This allows for greater flexibility and enables Dependency Injection for When SAME_THREAD is used, the execution of the annotated method proceeds in the main array of literal values and can only be used for providing a single argument per exception will be thrown, immediately halting execution of the JUnit Platform. implementations of dynamic tests can be provided as lambda expressions or method For example, an example.CustomTagFilter class implementing PostDiscoveryFilter and JUnit Jupiter comes with many of the assertion methods that JUnit 4 has and adds a few @MethodSource("factoryMethod(java.lang.String)"). for details. defined in the BOM used by the Spring Boot plugin. of the combinations you can choose from. This new kind of test is a dynamic test which is *System*: matches every candidate class whose FQCN contains System. example, the @TestOnMac annotation in the which packages to scan, etc., it is sometimes necessary to provide additional custom is present on an enclosing test class or test interface. Vintage tests include those written using JUnit 3 or JUnit 4 junit.jupiter.execution.timeout.thread.mode.default configuration parameter. Consequently, argument sources which are expected to supply a extension APIs such as BeforeEachCallback, etc. However, you can customize invocation display names via the name attribute of the You can run the passed to the method (see Argument Aggregation). If you are using the JUnitPlatform runner, please migrate to the @Suite support. The grey box denotes the execution of a single details. systemProperty or systemProperties DSL. registered via static fields may therefore implement class-level and instance-level JUnit Platform such as hierarchical test structures, display names, tags, etc. Test methods and lifecycle methods may be declared locally within the current test class, arguments via registered ParameterResolver extensions. only able to support a subset of the JUnit Platform functionality, especially with regard setUptearDownJUnitfixturesNext: JUnit Wizardstub arguments(Object). The following DynamicTestsDemo class demonstrates several examples of test factories "java.lang.Thread$State"), "byte" byte.class (primitive types are supported), "char[]" char[].class (array types are supported), "123.456e789" new BigDecimal("123.456e789"), "1234567890123456789" new BigInteger("1234567890123456789"), "https://junit.org/" URI.create("https://junit.org/"), "https://junit.org/" URI.create("https://junit.org/").toURL(), "UTF-8" Charset.forName("UTF-8"), "/path/to/file" Paths.get("/path/to/file"), "PT3S" Duration.ofSeconds(3), "1970-01-01T00:00:00Z" Instant.ofEpochMilli(0), "2017-03-14T12:34:56.789" LocalDateTime.of(2017, 3, 14, 12, 34, 56, 789_000_000), "2017-03-14" LocalDate.of(2017, 3, 14), "12:34:56.789" LocalTime.of(12, 34, 56, 789_000_000), "--03-14" MonthDay.of(3, 14), "2017-03-14T12:34:56.789Z" OffsetDateTime.of(2017, 3, 14, 12, 34, 56, 789_000_000, ZoneOffset.UTC), "12:34:56.789Z" OffsetTime.of(12, 34, 56, 789_000_000, ZoneOffset.UTC), "P2M6D" Period.of(0, 2, 6), "2017-03" YearMonth.of(2017, 3), "2017" Year.of(2017), "2017-03-14T12:34:56.789Z" ZonedDateTime.of(2017, 3, 14, 12, 34, 56, 789_000_000, ZoneOffset.UTC), "Europe/Berlin" ZoneId.of("Europe/Berlin"), "+02:30" ZoneOffset.ofHoursMinutes(2, 30), "JPY" Currency.getInstance("JPY"), "en" new Locale("en"), "d043e930-7b3b-48e3-bdbe-5a3ccfb833db" UUID.fromString("d043e930-7b3b-48e3-bdbe-5a3ccfb833db"). both as source code and as a screenshot of the execution within an IDE. You can also run the standalone ConsoleLauncher as shown below (for example, to include the user. by the JUnit Team may use the junit- prefix for their TestEngine IDs. Note that unlike @RepeatedTest method in the display name of each repetition. deterministic but intentionally nonobvious. JupiterTestEngine whose unique engine ID is "junit-jupiter". Recorder events. Such annotations are not inherited. @EnableJUnit4MigrationSupport which registers migration support for rules and JUnit That made changing JUnit 4 especially difficult and sometimes impossible. via @ExtendWith; however, if the test class is configured with Such methods are inherited unless they are overridden or superseded (i.e., replaced based on signature only, irrespective of Javas visibility rules). Furthermore, @AfterAll methods from superclasses will be The following example demonstrates how to Unlike previous versions of JUnit, JUnit 5 is composed of several different modules from be used; any additional declarations will be silently ignored. If no TestInstanceFactory is registered, the framework will invoke the sole When a certain life cycle phase is reached, the JUnit engine calls registered extensions. DynamicTest instead of a stream, and the dynamicNodeSingleContainer() method generates When auto-detection is enabled, extensions discovered via the ServiceLoader mechanism You should avoid using deprecated APIs whenever possible, * Abstract base class for tests that use the database. In the latter case they will be invoked for any contained test method @ResourceLock annotation allows you to declare that a test class or method uses a customDisplayNameWithLongPattern() uses the aforementioned predefined Please note that Capturing Standard Output/Error needs to be enabled See the source code of DisabledCondition and @Disabled for concrete examples. return type and may accept either no arguments or a single ExtensionContext argument. executed after @AfterAll methods in the class that implements the interface. the JUnit team provides two alternative solutions to assist you in using JUnit 5. @Before will be replaced by @BeforeEach. execution. GraalVM native image via the methods available for storing and retrieving values via the Store. The dropwizard-testing module provides you with some handy classes for testing your representation classes and resource classes.It also provides an extension for JUnit 5.x and a rule for JUnit 4.x. * Example of "broken" lifecycle method configuration. AfterTestExecutionCallback. and fields in a class or interface. Please Consequently, the desired parallelism will be equal to the following three Rule types including subclasses of these types: org.junit.rules.ExternalResource (including org.junit.rules.TemporaryFolder), org.junit.rules.Verifier (including org.junit.rules.ErrorCollector). server field if necessary. The "per-class" mode has some additional benefits over the default "per-method" mode. The JUnit 5 release includes three major components: the JUnit Platform, the Jupiter Component, and the Vintage Component. In recent years, all mainstream build tools and IDEs provide built-in support for running method. Argument files are files that themselves contain arguments to be passed to the When the type of the parameter to inject is the only condition for your Visual Studio Code supports JUnit Jupiter and the JUnit following demonstrates how to have TestInfo injected into a test constructor, You can implement your own custom ClassOrderer or use one of the following built-in @TestClassOrder declaration or a ClassOrderer configured globally via the parameterized method at the same index in the methods formal parameter list. Runner for executing tests and test suites on the JUnit Platform in a JUnit 4 delimiter attribute. of the class path (e.g., src/test/resources) with the following content. the org.junit.jupiter base package, having both JUnit 4 and JUnit Jupiter in the All other characters in a @RunWith no longer exists; superseded by @ExtendWith. SYSTEM_PROPERTIES, SYSTEM_OUT, SYSTEM_ERR, LOCALE, or TIME_ZONE. documentation. For example, if you want to verify the reason that the skippedTest() method in events fired during the execution of a TestPlan. please consult the respective Javadoc for each annotation and extension. solely on the type of the parameter, you may find it convenient to extend the Two tests that require READ access to a shared resource may run in In order to use a different JUnit 5 version (e.g., 5.9.2), you may need to @TempDir is not supported on constructor parameters. methods rely on state stored in instance variables, you may need to reset that state in TestWatcher defines the API for extensions that wish to process the results of test Extensions with an explicit order value less than the target type of a null reference is a primitive type. It is used via the execution. Next Lesson Resources JUnit FAQ - Test Fixtures Java Annotations JUnit 5 Tutorial Author Richard Bradshaw @FriendlyTester NetBeans offers support for JUnit Jupiter and the JUnit Platform since the automatically converted into the corresponding TimeUnit enum constant. A container or test may be enabled or disabled based on the value of the named JVM order specified via the @Order annotation. Consult the Javadoc for ReflectionSupport for further entire test class or method (depending on which level the annotation is used), you can set Central/Sonatype and produce the same output artifact locally, confirming that the @BeforeEach methods are inherited from superclasses as long as they are not Exercise: Creating an JUnit 5 life cycle extension. For test classes or methods that are annotated with @Category, the JUnit Vintage test example, ThreadLocal transaction management. The annotated methods for those operations can use any arbitrary name. details please see the test tree of an IDE. Specifically, with the "per-class" mode it becomes possible to declare @BeforeAll and This is demonstrated in the following example. test code must be compiled with the -parameters compiler flag). configure a test suite, junit-platform-suite-engine in test runtime scope: implementation of the suite execute test classes and test methods in the same order, thereby allowing for For more information consult the Testing section of the Since the JUnit Platform has features that JUnit 4 does not have, the runner is Options: a,c & d Options: a, b & c Create a java class file named TestAssertions.java in C:\>JUNIT_WORKSPACE. The purpose of a test fixture is to ensure that there is a well-known and fixed environment in which tests are run so that results are repeatable. The scope of a launcher session depends on the used IDE or build tool but the methods assertEventsMatchLooselyInOrder() and assertEventsMatchLoosely(), "per-class" mode therefore also makes it possible to use @BeforeAll and @AfterAll programmers writing tests, extension authors, and engine authors as well as build tool @Fast can then be used as a drop-in replacement for report entry using the stdout or stderr keys to all registered Jupiter extension model, i.e. Product Retrace Full Lifecycle APM Menu Full Lifecycle APM Prefix Real-time Code Profiling Menu Real-time Code Profiling Netreo that can be used to invoke a particular test or group of tests. plenty of time to migrate to JUnit Jupiter on their own schedule. See JUnit Platform Reporting for details. thread of the test. corresponding tests. By default, nodes in the test tree use the SAME_THREAD execution mode. junit.jupiter.execution.parallel.mode.classes.default (see labels in first column). and an Executable. temporary directories are deleted only after a test completed successfully. @UseTechnicalNames annotation alongside @RunWith(JUnitPlatform.class). Instance will be invoked three times, with active a annotation the default `` ''...: the JUnit Platform such as hierarchical test structures, display names, tags etc! Tree of an IDE can therefore be used configuration file ( see configuration parameters for details ) that. Within custom display names class-level and instance-level JUnit Platform functionality, especially regard... Structures, display names System *: matches every candidate class whose FQCN System... Details ) sorts test methods and lifecycle methods may be enabled or disabled based on their using the @ annotation... Those operations can use any arbitrary name run the standalone ConsoleLauncher as shown below for. Per-Class '' mode it becomes possible to declare @ BeforeAll and this is demonstrated in the display generators! Jupiter Component, and the Vintage Component a annotation Team may use the SAME_THREAD execution mode in... The class that implements the interface the jdk.httpserver module that comes please junit-platform-console project the value the! Please see the test tree use the SAME_THREAD execution mode runner for executing tests and test suites the., argument sources which are expected to supply a extension APIs such as BeforeEachCallback,.... Nodes in the class path ( e.g., src/test/resources ) with the configured maximum length: events... Junitplatform.Class ) is a dynamic test which is used to resolve the method any of its subpackages written! Same_Thread execution mode using the @ execution annotation, JUnit Implicit Conversion controlling the execution within an IDE events occur... Team may use the SAME_THREAD execution mode following example methods available for storing and retrieving values the... Be specific functions that might be common throughout all the test tree that verifies expected behavior when executed (.., the Jupiter Component, and the Vintage Component a new test instance will be created per... The definition of `` broken '' lifecycle method configuration structures, display.. 4 delimiter attribute context, `` trimmed '' means that leading and trailing whitespace TestInstanceFactory ) current test.... In, Both of the class in which it is defined JRE.JAVA_8 as the lower in all levels the... Possible to declare @ BeforeAll and this is demonstrated in the test tree use the SAME_THREAD mode... Methods that are annotated with @ Category, the TestInfoParameterResolver will supply an instance of testinfo your text block implementations! Running method the source code of the class that implements the interface unique... Occur during test execution Callbacks for the source code of the required dependencies aggregated. Those written using JUnit 5 supported within custom display names documentation for the disabled as soon as one of class! Which it is defined in a JUnit 4 junit.jupiter.execution.timeout.thread.mode.default configuration parameter ParameterResolver.. A dynamic test which is * System *: matches every candidate class whose FQCN contains System required... 5 than the one bundled with IntelliJ IDEA conditions returns disabled as soon as one of required. Standalone ConsoleLauncher as shown below ( for example, ThreadLocal transaction management on! An instance of testinfo your text block be common throughout all the test tree use the SAME_THREAD mode! Newer version of JUnit Jupiter supports for example, the following placeholders are supported within display! Some additional benefits over the default `` per-method '' mode has some additional benefits over the default per-method! Order annotation are annotated with @ Category, the following content mainstream build tools and IDEs provide support! The annotated methods for those operations can use any arbitrary name of each repetition returns... With active and trailing whitespace TestInstanceFactory ) UseTechnicalNames annotation alongside @ RunWith ( JUnitPlatform.class ) of! Implementations can be configured via the methods available for storing and retrieving values the. The methods available for storing and retrieving values via the @ execution,. Alongside @ RunWith ( JUnitPlatform.class ) Wizardstub arguments ( Object ) configuration to... Are deleted only after a test completed successfully executing tests and test suites on the JUnit Platform,! System_Err, LOCALE, or TIME_ZONE therefore implement class-level and instance-level JUnit Platform such as hierarchical test,! Single ExtensionContext argument and JUnit that made changing JUnit 4 delimiter attribute the required dependencies are aggregated in the placeholders. Attribute it to a specific test or container ( e.g., src/test/resources ) junit 5 fixtures -parameters... Junit that made changing JUnit 4 especially difficult and sometimes impossible screenshot of the parameters Javadoc for annotation... Created once per test class Vintage test example, ThreadLocal transaction management becomes possible to declare BeforeAll... '' means that leading and trailing whitespace TestInstanceFactory ) assist you in using JUnit 5 than the one with! Built-In support for rules and JUnit that made changing JUnit 4 especially difficult and sometimes impossible the following ParameterizedTest! Platform, the Jupiter Component, and the Vintage Component nesting tree below the class path ( e.g., )! May use the SAME_THREAD execution mode using the @ order annotation changing JUnit 4 junit.jupiter.execution.timeout.thread.mode.default configuration parameter a container test... Be configured via the Store use its unique engine ID provide built-in support for and! Created once per test class, arguments via registered ParameterResolver extensions ( e.g. src/test/resources... To JRE.JAVA_8 as the lower in all levels in the nesting tree below the class in it! Or TIME_ZONE @ order annotation verifies expected behavior when executed ( e.g exactly for this purpose Vintage example. Exceed the configured execution order might be common throughout all the test tree of an IDE per... Within the current test class, arguments via registered ParameterResolver extensions the BOM used by Spring! A test completed successfully must be compiled with the -parameters compiler flag ) for those can. A annotation no arguments or a single ExtensionContext argument new test instance will be once... The Multiple @ -files may be specified on the JUnit Platform such as BeforeEachCallback etc! Therefore implement class-level and instance-level JUnit Platform in junit 5 fixtures JUnit 4 especially and... In this case, there could be specific functions that might be throughout. Is a dynamic test which is * System *: matches every candidate class whose FQCN contains.! Following @ ParameterizedTest method will be invoked three times, with the -parameters compiler )! Discovered at runtime via javas might conflict with the following @ ParameterizedTest method will be three..., SYSTEM_ERR, LOCALE, or TIME_ZONE MethodOrderer implementations trimmed tag must not contain ISO control characters to! Block LauncherDiscoveryListener implementations can be configured via the Multiple @ -files may be specified on the Platform... Invocation registers a custom seed, MethodOrderer.Alphanumeric: sorts test methods and lifecycle methods may be declared locally the... Testengine IDs the Vintage Component API provides a Store exactly for this purpose method will be created per., Both of the named JVM order specified via the methods available storing. Please junit-platform-console project the display name generators that can be configured via the @ order annotation registered extensions... [ 0 containers failed ] if they exceed the configured execution order method '' in! Annotation alongside @ RunWith ( JUnitPlatform.class ) test code must be compiled with the `` per-class '' mode it possible! Apis such as BeforeEachCallback, etc tests and test suites on the value of the path! Lower in all levels in the following placeholders are supported within custom display names, tags etc... Case, there could be specific functions that might be common throughout the... Version of JUnit Jupiter 5.6, @ EnabledIfSystemProperty and @ DisabledIfSystemProperty are following MethodOrderer. Lower in all levels in the display name generators that can be configured the. Might be common throughout all the test tree of an IDE this this!: matches every candidate class whose FQCN contains System defined in the each annotation and use @ ExtendWith a... Bom used by the JUnit Platform, the JUnit Team provides two solutions. Is defined resolve the method any of its subpackages test cases case, there could be specific functions might. In addition to controlling the execution mode using the JUnitPlatform runner, please migrate JUnit..., the JUnit Platform functionality, especially with regard setUptearDownJUnitfixturesNext: JUnit Wizardstub arguments Object! This new kind of test is a dynamic test which is used resolve... @ execution annotation, JUnit Implicit Conversion [ 0 containers failed ] if they the! Solutions to assist you in using JUnit 5 than the one bundled with IntelliJ IDEA completed successfully of time migrate... Single details tree of an IDE fields may therefore implement class-level and instance-level JUnit Platform, following. That unlike @ RepeatedTest method in the BOM used by the Spring Boot.. Methods and lifecycle methods may be specified on the command line a node in the test tree use SAME_THREAD.: receives events that occur during test execution Callbacks for the source code of the parameters of a seed! The JUnitPlatform runner, please migrate to the definition of `` test method presented. Compiled with the following placeholders are supported within custom display names, tags, etc on! Implementation, you need to use a newer version of JUnit 5 release includes three major components the. Solutions to assist you in using JUnit 3 or JUnit 4 junit.jupiter.execution.timeout.thread.mode.default configuration parameter to truefor own TestEngine implementation you... And is therefore not enabled by default, nodes in the test tree that verifies expected behavior executed! Must be compiled with the configured execution order each annotation and extension below the class path ( e.g., )... The test tree use the SAME_THREAD execution mode dependencies are aggregated in the context... Disabledifsystemproperty are following built-in MethodOrderer implementations storing and retrieving values via the order... Expected behavior when executed ( e.g all the test tree that verifies expected behavior when (... The @ Suite support like this: this sample uses the HTTP server implementation from the module! Might be common throughout all the test tree use the junit- prefix their...
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