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annotate spring-di-playground/src/test/java/de/comline/spring/ClasspathScanningTest.java @ 5:227f3105fedd

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Erster Unit Test, der das repository einfach nur mockt
author Dirk Olmes <dirk.olmes@codedo.de>
date Thu, 13 Aug 2020 15:58:57 +0200
parents 64e2ebad3366
children
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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.is;
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5 import static org.junit.jupiter.api.Assertions.assertThrows;
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6 import static org.junit.jupiter.api.Assertions.fail;
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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.annotation.AnnotationConfigApplicationContext;
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12 import org.springframework.context.annotation.ComponentScan;
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13 import org.springframework.context.annotation.ComponentScan.Filter;
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14 import org.springframework.context.annotation.Configuration;
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15 import org.springframework.context.annotation.FilterType;
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16
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17 import de.comline.spring.model.MovieCatalog;
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18 import de.comline.spring.model.scanning.ActionMovieCatalogComponent;
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19
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20 public class ClasspathScanningTest {
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21 @Test
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22 @DisplayName("Scanning explicit packages")
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23 public void classpathScanning() {
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24 try (AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext("de.comline.spring.model.scanning")) {
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25 assertThrows(NoUniqueBeanDefinitionException.class, () -> {
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26 context.getBean(MovieCatalog.class);
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27 fail("Classpath scanning must have detected both implementations of the MovieCatalog interface");
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28 });
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29 }
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30 }
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31
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32 @Test
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33 @DisplayName("Scanning by configuration")
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34 public void explicitConfiguration() {
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35 try (AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(ScanningConfiguration.class)) {
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36 assertThrows(NoUniqueBeanDefinitionException.class, () -> {
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37 context.getBean(MovieCatalog.class);
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38 fail("Classpath scanning must have detected both implementations of the MovieCatalog interface");
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39 });
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40 }
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41 }
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42
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43 @Test
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44 @DisplayName("Scanning by configuration with filter")
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45 public void configurationWithFilter() {
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46 try (AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(FilteredScanningConfiguration.class)) {
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47 MovieCatalog catalog = context.getBean(MovieCatalog.class);
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48 assertThat(catalog.getCategory(), is("Comedy"));
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49 }
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50 }
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51
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52 /**
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53 * Note: class may not be final.<br/>
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54 * Note: class must have a default constructor which is package protected at
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55 * least
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56 */
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57 @Configuration
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58 @ComponentScan(basePackages = "de.comline.spring.model.scanning")
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59 private static class ScanningConfiguration {
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60 @SuppressWarnings("unused")
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61 ScanningConfiguration() {
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62 super();
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63 }
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64 }
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65
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66 @Configuration
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67 @ComponentScan(basePackages = "de.comline.spring.model.scanning", excludeFilters = @Filter(type = FilterType.ASSIGNABLE_TYPE, classes = ActionMovieCatalogComponent.class))
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68 private static class FilteredScanningConfiguration {
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69 @SuppressWarnings("unused")
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70 FilteredScanningConfiguration() {
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71 super();
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72 }
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73 }
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74 }