Mercurial > hg > SpringPlayground
annotate spring-di-playground/src/test/java/de/comline/spring/QualifierTest.java @ 14:4594ff529ab1
Noch ein Test ganz ohne Spring hinzugefuegt.
author | Dirk Olmes <dirk.olmes@codedo.de> |
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date | Mon, 17 Aug 2020 14:39:26 +0200 |
parents | 64e2ebad3366 |
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1 package de.comline.spring; |
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2 |
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3 import static org.hamcrest.MatcherAssert.assertThat; |
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4 import static org.hamcrest.Matchers.containsString; |
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5 import static org.hamcrest.Matchers.is; |
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6 import static org.junit.jupiter.api.Assertions.assertThrows; |
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7 |
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8 import org.junit.jupiter.api.DisplayName; |
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9 import org.junit.jupiter.api.Test; |
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10 import org.springframework.beans.factory.NoUniqueBeanDefinitionException; |
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11 import org.springframework.context.ConfigurableApplicationContext; |
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12 import org.springframework.context.annotation.AnnotationConfigApplicationContext; |
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13 |
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14 import de.comline.spring.model.ActionMovieCatalog; |
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15 import de.comline.spring.model.ActionMovieLister; |
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16 import de.comline.spring.model.ComedyMovieCatalog; |
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17 import de.comline.spring.model.MovieCatalog; |
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18 |
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19 public class QualifierTest { |
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20 @Test |
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21 @DisplayName("Requesting explicit interface type") |
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22 public void explicitType() { |
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23 try (ConfigurableApplicationContext context = new AnnotationConfigApplicationContext(ActionMovieCatalog.class, ComedyMovieCatalog.class)) { |
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24 MovieCatalog action = context.getBean(ActionMovieCatalog.class); |
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25 assertThat(action.getCategory(), is("Action")); |
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26 } |
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27 } |
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28 |
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29 @Test |
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30 @DisplayName("Qualifier can be specified at source") |
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31 public void qualifierAtSource() { |
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32 // Note how we add multiple interface implementations to the context |
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33 try (ConfigurableApplicationContext context = new AnnotationConfigApplicationContext(ActionMovieCatalog.class, ComedyMovieCatalog.class, ActionMovieLister.class)) { |
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34 ActionMovieLister lister = context.getBean(ActionMovieLister.class); |
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35 assertThat(lister.toString(), containsString("Action")); |
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36 } |
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37 } |
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38 |
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39 @Test |
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40 @DisplayName("Binding only a single interface implementation") |
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41 public void singleImplementationOfInterface() { |
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42 try (ConfigurableApplicationContext context = new AnnotationConfigApplicationContext(ComedyMovieCatalog.class)) { |
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43 MovieCatalog catalog = context.getBean(MovieCatalog.class); |
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44 assertThat(catalog.getCategory(), is("Comedy")); |
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45 } |
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46 } |
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47 |
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48 @Test |
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49 @DisplayName("Multiple implementations of the same interface cannot be injected") |
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50 public void multipleInterfaceImplementations() { |
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51 try (ConfigurableApplicationContext context = new AnnotationConfigApplicationContext(ActionMovieCatalog.class, ComedyMovieCatalog.class)) { |
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52 assertThrows(NoUniqueBeanDefinitionException.class, () -> { |
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53 context.getBean(MovieCatalog.class); |
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54 }); |
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55 } |
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56 } |
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57 } |