英文:
Hybris. Couldn't run any test because of NPE exception Item.getImplementation() not found
问题
我在本地运行Hybris。但在运行测试时出现错误：
java.lang.NullPointerException: 无法调用"de.hybris.platform.jalo.Item$ItemImpl.isLocalCachingSupported()"，因为"de.hybris.platform.jalo.Item.getImplementation()"的返回值为null
在ProductData的setter代码行中：
public void setCode(final SessionContext ctx, final String value){setProperty(ctx, "code".intern(), value);}
集成测试和单元测试都返回错误。
在此之前，使用ant yunitinit有帮助。但这次我甚至尝试了ant clean all，ant initialize，但没有任何改变。
这是我添加的项目类型。它生成了正确的表和类。
<itemtype code="ProductData" autocreate="true" generate="true"><deployment table="ProductData" typecode="30800"/><attributes><attribute qualifier="code" type="java.lang.String"><persistence type="property"/><modifiers read="true" write="true" search="true"/></attribute><attribute qualifier="weight" type="java.lang.Double"><persistence type="property"/><modifiers read="true" write="true" search="true" optional="true"/></attribute><attribute qualifier="height" type="java.lang.Double"><persistence type="property"/><modifiers read="true" write="true" search="true" optional="true"/></attribute><attribute qualifier="length" type="java.lang.Double"><persistence type="property"/><modifiers read="true" write="true" search="true" optional="true"/></attribute><attribute qualifier="width" type="java.lang.Double"><persistence type="property"/><modifiers read="true" write="true" search="true" optional="true"/></attribute></attributes></itemtype>
以及测试类本身：
package com.epam.trainingextension.setup.populator;import com.epam.trainingextension.enums.ProductOption;import com.epam.trainingextension.jalo.ProductData;import de.hybris.bootstrap.annotations.IntegrationTest;import de.hybris.bootstrap.annotations.UnitTest;import de.hybris.platform.core.Registry;import de.hybris.platform.core.model.product.ProductModel;import org.junit.Before;import org.junit.Test;import org.junit.runner.RunWith;import org.mockito.InjectMocks;import org.mockito.Mock;import org.mockito.junit.MockitoJUnitRunner;import org.springframework.jdbc.core.JdbcTemplate;import java.util.Collections;import java.util.concurrent.TimeUnit;import static org.junit.Assert.assertEquals;import static org.junit.Assert.assertNull;import static org.mockito.Mockito.when;@RunWith(MockitoJUnitRunner.class)public class ProductPopulatorTest {@InjectMocksprivate ProductPopulator productPopulator;@Mockprivate ProductModel productModel;@Testpublic void testPopulate_whenPhysicalDimensionsOptionIsPassed_shouldPopulateWeight() {when(productModel.getCode()).thenReturn("productCode");when(productModel.getWeight()).thenReturn(100.0);final ProductData productData = new ProductData();productPopulator.populate(productModel, productData, Collections.singletonList(ProductOption.PHYSICAL_DIMENSIONS));assertEquals("productCode", productData.getCode());assertEquals(100.0, productData.getWeight(), 0.0);}}
测试是通过的，但我更改了ProductData的声明。我使用了items.xml，而不仅仅是在包中声明类。我想也许这里有孤立的部分，但我没有找到。
错误的原因是我已经在数据库中有ProductData，并且我从items.xml中删除了ProductData的声明，如答案建议的，而是声明了类。
英文:
I run Hybris locally. But I'm getting error while running tests:
> java.lang.NullPointerException: Cannot invoke "de.hybris.platform.jalo.Item$ItemImpl.isLocalCachingSupported()" because the return value of "de.hybris.platform.jalo.Item.getImplementation()" is null
at ProductData setter code lines:
public void setCode(final SessionContext ctx, final String value){setProperty(ctx, "code".intern(),value);}
Integration and Unit test are same returns errors.
Before that ant yunitinit helped me. But this time I even have tried ant clean all, ant initialize but no changings.
It's my added item type. It generated correct table and class.
<itemtype code="ProductData" autocreate="true" generate="true"><deployment table="ProductData" typecode="30800"/><attributes><attribute qualifier="code" type="java.lang.String"><persistence type="property"/><modifiers read="true" write="true" search="true"/></attribute><attribute qualifier="weight" type="java.lang.Double"><persistence type="property"/><modifiers read="true" write="true" search="true" optional="true"/></attribute><attribute qualifier="height" type="java.lang.Double"><persistence type="property"/><modifiers read="true" write="true" search="true" optional="true"/></attribute><attribute qualifier="length" type="java.lang.Double"><persistence type="property"/><modifiers read="true" write="true" search="true" optional="true"/></attribute><attribute qualifier="width" type="java.lang.Double"><persistence type="property"/><modifiers read="true" write="true" search="true" optional="true"/></attribute></attributes></itemtype>
And test class itself:
package com.epam.trainingextension.setup.populator;import com.epam.trainingextension.enums.ProductOption;import com.epam.trainingextension.jalo.ProductData;import de.hybris.bootstrap.annotations.IntegrationTest;import de.hybris.bootstrap.annotations.UnitTest;import de.hybris.platform.core.Registry;import de.hybris.platform.core.model.product.ProductModel;import org.junit.Before;import org.junit.Test;import org.junit.runner.RunWith;import org.mockito.InjectMocks;import org.mockito.Mock;import org.mockito.junit.MockitoJUnitRunner;import org.springframework.jdbc.core.JdbcTemplate;import java.util.Collections;import java.util.concurrent.TimeUnit;import static org.junit.Assert.assertEquals;import static org.junit.Assert.assertNull;import static org.mockito.Mockito.when;@RunWith(MockitoJUnitRunner.class)public class ProductPopulatorTest {@InjectMocksprivate ProductPopulator productPopulator;@Mockprivate ProductModel productModel;@Testpublic void testPopulate_whenPhysicalDimensionsOptionIsPassed_shouldPopulateWeight(){when(productModel.getCode()).thenReturn("productCode");when(productModel.getWeight()).thenReturn(100.0);final ProductData productData = new ProductData();productPopulator.populate(productModel, productData, Collections.singletonList(ProductOption.PHYSICAL_DIMENSIONS));assertEquals("productCode", productData.getCode());assertEquals(100.0, productData.getWeight(), 0.0);}}
Test was green, but I've changed declaration of ProductData. I used items.xml instead of just usual declaration of class in packages. I thought maybe here was left orphans, but I don't have one.
Cause of error was that I had already ProductData in db, and I removed declaration of ProductData from items.xml how suggested in answers, and declared class instead
答案1
得分: 2
如果您想使用items.xml中的ProductData，您应该使用ProductDataModel而不是ProductData。
英文:
If you want to use ProductData from items.xml you should be using ProductDataModel instead of ProductData.
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