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Junit for sling models based on Delegation Pattern

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Level 4
Level 4
1/23/23 7:51:48 PM
Hi Team,
 
We are trying to create junit for sling models where delegate pattern was used, but the core class reference always returns null.Is there any better way to create junit for such use case. Detailed error : java.lang.NullPointerException: Cannot invoke "com.adobe.cq.wcm.core.components.models.Navigation.getAccessibilityLabel()" because "this.navigation" is null.
 
 
modeltest.png

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Correct answer by
Employee Advisor
Employee Advisor
1/23/23 9:58:29 PM

Hi @NehaCMS ,

 

You can check the WKND project example for ImageList, It injects "com.adobe.cq.wcm.core.components.models.List" 

https://github.com/adobe/aem-guides-wknd/blob/main/core/src/test/java/com/adobe/aem/guides/wknd/core... 

 

Hope this helps!

 

Regards,

Nitesh

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Correct answer by
Employee Advisor
Employee Advisor
1/23/23 9:58:29 PM

Hi @NehaCMS ,

 

You can check the WKND project example for ImageList, It injects "com.adobe.cq.wcm.core.components.models.List" 

https://github.com/adobe/aem-guides-wknd/blob/main/core/src/test/java/com/adobe/aem/guides/wknd/core... 

 

Hope this helps!

 

Regards,

Nitesh

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Level 4
Level 4
1/31/23 9:00:02 PM
In response to NehaCMS

hi @nitesh_kumar - Tried but getting null pointer for imagelist core as well, can you check or have any working sample to be shared.

NehaCMS_0-1675227567715.png

 

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Level 4
Level 4
2/27/23 12:00:39 PM
In response to arunpatidar

hi @arunpatidar - Have tried above, bit it gives 

01:27:12.041 [main] DEBUG org.apache.sling.testing.mock.sling.MockAdapterManagerImpl - Using adapter factory org.apache.sling.models.impl.ModelAdapterFactory@4232b34a to map org.apache.sling.testing.mock.sling.servlet.MockSlingHttpServletRequest@2da16263 to class test.models.components.CustomTeaser

java.lang.NullPointerException

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaser.getTitle(CustomTeaser.java:55)

at test.models.components.CustomTeaserTest.testCustomTeaser(CustomTeaserTest.java:40)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:566)

at org.junit.platform.commons.util.ReflectionUtils.invokeMethod(ReflectionUtils.java:686)

at org.junit.jupiter.engine.execution.MethodInvocation.proceed(MethodInvocation.java:60)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain$ValidatingInvocation.proceed(InvocationInterceptorChain.java:131)

at org.junit.jupiter.engine.extension.TimeoutExtension.intercept(TimeoutExtension.java:149)

at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestableMethod(TimeoutExtension.java:140)

at org.junit.jupiter.engine.extension.TimeoutExtension.interceptTestMethod(TimeoutExtension.java:84)

at org.junit.jupiter.engine.execution.ExecutableInvoker$ReflectiveInterceptorCall.lambda$ofVoidMethod$0(ExecutableInvoker.java:115)

at org.junit.jupiter.engine.execution.ExecutableInvoker.lambda$invoke$0(ExecutableInvoker.java:105)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain$InterceptedInvocation.proceed(InvocationInterceptorChain.java:106)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain.proceed(InvocationInterceptorChain.java:64)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain.chainAndInvoke(InvocationInterceptorChain.java:45)

at org.junit.jupiter.engine.execution.InvocationInterceptorChain.invoke(InvocationInterceptorChain.java:37)

at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:104)

at org.junit.jupiter.engine.execution.ExecutableInvoker.invoke(ExecutableInvoker.java:98)

at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.lambda$invokeTestMethod$6(TestMethodTestDescriptor.java:212)

at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.invokeTestMethod(TestMethodTestDescriptor.java:208)

at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:137)

at org.junit.jupiter.engine.descriptor.TestMethodTestDescriptor.execute(TestMethodTestDescriptor.java:71)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:135)

at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)

at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)

at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)

at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)

at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)

at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)

at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)

at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)

at java.base/java.util.ArrayList.forEach(ArrayList.java:1541)

at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.invokeAll(SameThreadHierarchicalTestExecutorService.java:38)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$5(NodeTestTask.java:139)

at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$7(NodeTestTask.java:125)

at org.junit.platform.engine.support.hierarchical.Node.around(Node.java:135)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.lambda$executeRecursively$8(NodeTestTask.java:123)

at org.junit.platform.engine.support.hierarchical.ThrowableCollector.execute(ThrowableCollector.java:73)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.executeRecursively(NodeTestTask.java:122)

at org.junit.platform.engine.support.hierarchical.NodeTestTask.execute(NodeTestTask.java:80)

at org.junit.platform.engine.support.hierarchical.SameThreadHierarchicalTestExecutorService.submit(SameThreadHierarchicalTestExecutorService.java:32)

at org.junit.platform.engine.support.hierarchical.HierarchicalTestExecutor.execute(HierarchicalTestExecutor.java:57)

at org.junit.platform.engine.support.hierarchical.HierarchicalTestEngine.execute(HierarchicalTestEngine.java:51)

at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:248)

at org.junit.platform.launcher.core.DefaultLauncher.lambda$execute$5(DefaultLauncher.java:211)

at org.junit.platform.launcher.core.DefaultLauncher.withInterceptedStreams(DefaultLauncher.java:226)

at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:199)

at org.junit.platform.launcher.core.DefaultLauncher.execute(DefaultLauncher.java:141)

at org.eclipse.jdt.internal.junit5.runner.JUnit5TestReference.run(JUnit5TestReference.java:98)

at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:40)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:529)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:756)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:452)

at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:210)

at

FieldSetter.setField(customTeaser2, customTeaser2.getClass().getDeclaredField("teaser"), teaser.getTitle());

so giving null for core component teaser class fields, can you help in checking

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