CODEWITHSUNDEEP
spring-bootjunitjunit4spring-boot-testtestcase
Sdcoder
Sdcoder

Reputation: 43

How to write junit cases for @Bean for configuration classes

I have the below method in the @Configuration class and I need to write JUnit for this. Can anyone please guide me to achieve the JUnit test case?

@Bean
@Profile({"!test & !local"})
@Primary
public DiscoveryClient.DiscoveryClientOptionalArgs getClient() {
    try {
        DiscoveryClient.DiscoveryClientOptionalArgs args = new DiscoveryClient.DiscoveryClientOptionalArgs();
        args.setAdditionalFilters(Collections.singletonList(new HTTPBasicAuthFilter(this.username, this.password)));
        args.setSSLContext(sslContext());
        System.setProperty("javax.net.ssl.trustStore", this.truststorePath);
        System.setProperty("javax.net.ssl.trustStorePassword", this.trustStorePassword);

        return args;
    } catch (IOException | KeyManagementException | KeyStoreException | NoSuchAlgorithmException | CertificateException e) {
        throw new IllegalStateException("Unable to instantiate ssl context or authentication", e);
    }
}

Upvotes: 1

Views: 5397

Answers (1)

Branislav Lazic
Branislav Lazic

Reputation: 14806

First, consider what do you want to test. Successful creation of DiscoveryClient? Sure. Taking a pragmatic stance, I would even avoid Spring in that case:

public class DiscoveryClientConfigTest {
    
    @Test
    public void testGetClient() {
        DiscoveryClientConfig config = new DiscoveryClientConfig();
        DiscoveryClientOptionalArgs client = config.getClient();
        // Assert some state of the client
    }

        
    @Test
    public void testGetClient_FailsToCreateClient() {
        // Whatever exception you expect...
        assertThrows(IOException.class, () -> {
            DiscoveryClientConfig config = new DiscoveryClientConfig();
            config.getClient();
        });
    }
}

If you want to test it while it affects some other components, then that's out of the scope of a unit test.

Upvotes: 1

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