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[BAEL-1626] testing-modules | A Quick Guide to @TestPropertySource (eugenp#5255)
* *added tests using testpropertysource * fix: using property for version in pom file * fix, added dependency with compile scope to build successfully on mvn clean install
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‎testing-modules/spring-context-testing/pom.xml‎

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<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<groupId>com.baeldung</groupId>
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<artifactId>spring-context-testing</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter</artifactId>
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<version>${spring.boot.starter.version}</version>
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</dependency>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-test</artifactId>
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<scope>test</scope>
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<version>${spring.boot.starter.version}</version>
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</dependency>
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</dependencies>
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<properties>
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<spring.boot.starter.version>2.0.4.RELEASE</spring.boot.starter.version>
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</properties>
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</project>

‎testing-modules/spring-context-testing/src/main/java/com/baeldung/testpropertysource/ClassUsingProperty.java‎

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package com.baeldung.testpropertysource;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.stereotype.Component;
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@Component
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public class ClassUsingProperty {
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@Value("${baeldung.testpropertysource.one}")
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private String propertyOne;
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public String retrievePropertyOne() {
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return propertyOne;
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}
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}

‎testing-modules/spring-context-testing/src/test/java/com/baeldung/testpropertysource/DefaultTestPropertySourceIntegrationTest.java‎

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package com.baeldung.testpropertysource;
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import static org.assertj.core.api.Assertions.assertThat;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.test.context.ContextConfiguration;
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import org.springframework.test.context.TestPropertySource;
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import org.springframework.test.context.junit4.SpringRunner;
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@RunWith(SpringRunner.class)
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@ContextConfiguration(classes = ClassUsingProperty.class)
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@TestPropertySource
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public class DefaultTestPropertySourceIntegrationTest {
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@Autowired
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ClassUsingProperty classUsingProperty;
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@Test
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public void givenDefaultTestPropertySource_whenVariableOneRetrieved_thenValueInDefaultFileReturned() {
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String output = classUsingProperty.retrievePropertyOne();
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assertThat(output).isEqualTo("default-value");
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}
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}

‎testing-modules/spring-context-testing/src/test/java/com/baeldung/testpropertysource/LocationTestPropertySourceIntegrationTest.java‎

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package com.baeldung.testpropertysource;
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import static org.assertj.core.api.Assertions.assertThat;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.test.context.ContextConfiguration;
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import org.springframework.test.context.TestPropertySource;
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import org.springframework.test.context.junit4.SpringRunner;
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@RunWith(SpringRunner.class)
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@ContextConfiguration(classes = ClassUsingProperty.class)
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@TestPropertySource(locations = "/other-location.properties")
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public class LocationTestPropertySourceIntegrationTest {
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@Autowired
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ClassUsingProperty classUsingProperty;
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@Test
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public void givenDefaultTestPropertySource_whenVariableOneRetrieved_thenValueInDefaultFileReturned() {
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String output = classUsingProperty.retrievePropertyOne();
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assertThat(output).isEqualTo("other-location-value");
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}
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}

‎testing-modules/spring-context-testing/src/test/java/com/baeldung/testpropertysource/PropertiesTestPropertySourceIntegrationTest.java‎

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package com.baeldung.testpropertysource;
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import static org.assertj.core.api.Assertions.assertThat;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.test.context.ContextConfiguration;
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import org.springframework.test.context.TestPropertySource;
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import org.springframework.test.context.junit4.SpringRunner;
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@RunWith(SpringRunner.class)
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@ContextConfiguration(classes = ClassUsingProperty.class)
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@TestPropertySource(locations = "/other-location.properties", properties = "baeldung.testpropertysource.one=other-properties-value")
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public class PropertiesTestPropertySourceIntegrationTest {
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@Autowired
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ClassUsingProperty classUsingProperty;
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@Test
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public void givenDefaultTestPropertySource_whenVariableOneRetrieved_thenValueInDefaultFileReturned() {
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String output = classUsingProperty.retrievePropertyOne();
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assertThat(output).isEqualTo("other-properties-value");
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}
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}

‎testing-modules/spring-context-testing/src/test/resources/com/baeldung/testpropertysource/DefaultTestPropertySourceIntegrationTest.properties‎

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baeldung.testpropertysource.one=default-value

‎testing-modules/spring-context-testing/src/test/resources/other-location.properties‎

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baeldung.testpropertysource.one=other-location-value

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