48 lines
2.2 KiB
Plaintext
48 lines
2.2 KiB
Plaintext
[[howto.testing]]
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== Testing
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Spring Boot includes a number of testing utilities and support classes as well as a dedicated starter that provides common test dependencies.
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This section answers common questions about testing.
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[[howto.testing.with-spring-security]]
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=== Testing With Spring Security
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Spring Security provides support for running tests as a specific user.
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For example, the test in the snippet below will run with an authenticated user that has the `ADMIN` role.
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[source,java,indent=0,subs="verbatim"]
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----
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include::{docs-java}/howto/testing/withspringsecurity/MySecurityTests.java[]
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----
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Spring Security provides comprehensive integration with Spring MVC Test and this can also be used when testing controllers using the `@WebMvcTest` slice and `MockMvc`.
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For additional details on Spring Security's testing support, refer to Spring Security's {spring-security-docs}/servlet/test/index.html[reference documentation].
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[[howto.testing.testcontainers]]
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=== Use Testcontainers for Integration Testing
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The https://www.testcontainers.org/[Testcontainers] library provides a way to manage services running inside Docker containers.
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It integrates with JUnit, allowing you to write a test class that can start up a container before any of the tests run.
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Testcontainers is especially useful for writing integration tests that talk to a real backend service such as MySQL, MongoDB, Cassandra etc.
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Testcontainers can be used in a Spring Boot test as follows:
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[source,java,indent=0,subs="verbatim"]
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----
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include::{docs-java}/howto/testing/testcontainers/vanilla/MyIntegrationTests.java[]
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----
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This will start up a docker container running Neo4j (if Docker is running locally) before any of the tests are run.
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In most cases, you will need to configure the application using details from the running container, such as container IP or port.
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This can be done with a static `@DynamicPropertySource` method that allows adding dynamic property values to the Spring Environment.
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[source,java,indent=0,subs="verbatim"]
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----
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include::{docs-java}/howto/testing/testcontainers/dynamicproperties/MyIntegrationTests.java[]
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----
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The above configuration allows Neo4j-related beans in the application to communicate with Neo4j running inside the Testcontainers-managed Docker container.
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