Update condition to register links schema customizer, fixes #2359

springdoc-openapi-starter-common/src/main/java/org/springdoc/core/configuration/SpringDocHateoasConfiguration.java

@@ -97,11 +97,11 @@ CollectionModelContentConverter collectionModelContentConverter(HateoasHalProvid
 	 * @param halProvider the hal provider
 	 * @param springDocConfigProperties the spring doc config properties
 	 * @param objectMapperProvider the object mapper provider
-	 * @return the open api customiser
+	 * @return the open api customizer
 	 * @see org.springframework.hateoas.mediatype.hal.Jackson2HalModule.HalLinkListSerializer#serialize(Links, JsonGenerator, SerializerProvider) org.springframework.hateoas.mediatype.hal.Jackson2HalModule.HalLinkListSerializer#serialize(Links, JsonGenerator, SerializerProvider)org.springframework.hateoas.mediatype.hal.Jackson2HalModule.HalLinkListSerializer#serialize(Links, JsonGenerator, SerializerProvider)org.springframework.hateoas.mediatype.hal.Jackson2HalModule.HalLinkListSerializer#serialize(Links, JsonGenerator, SerializerProvider)org.springframework.hateoas.mediatype.hal.Jackson2HalModule.HalLinkListSerializer#serialize(Links, JsonGenerator, SerializerProvider)org.springframework.hateoas.mediatype.hal.Jackson2HalModule.HalLinkListSerializer#serialize(Links, JsonGenerator, SerializerProvider)
 	 */
 	@Bean(Constants.LINKS_SCHEMA_CUSTOMISER)
-	@ConditionalOnMissingBean
+	@ConditionalOnMissingBean(name = Constants.LINKS_SCHEMA_CUSTOMISER)
 	@Lazy(false)
 	GlobalOpenApiCustomizer linksSchemaCustomizer(HateoasHalProvider halProvider, SpringDocConfigProperties springDocConfigProperties,
 			ObjectMapperProvider objectMapperProvider) {

springdoc-openapi-starter-common/src/test/java/org/springdoc/core/configuration/SpringDocHateoasConfigurationTest.java

@@ -0,0 +1,84 @@
+package org.springdoc.core.configuration;
+
+import org.junit.jupiter.api.Test;
+import org.springdoc.core.customizers.GlobalOpenApiCustomizer;
+import org.springdoc.core.customizers.OpenApiHateoasLinksCustomizer;
+import org.springdoc.core.properties.SpringDocConfigProperties;
+import org.springframework.boot.autoconfigure.AutoConfigurations;
+import org.springframework.boot.autoconfigure.web.servlet.WebMvcAutoConfiguration;
+import org.springframework.boot.test.context.runner.WebApplicationContextRunner;
+import org.springframework.hateoas.config.HateoasConfiguration;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
+import static org.springdoc.core.utils.Constants.LINKS_SCHEMA_CUSTOMISER;
+
+class SpringDocHateoasConfigurationTest {
+
+    @Test
+    void linksSchemaCustomizerShouldBeRegistered() {
+        new WebApplicationContextRunner()
+                .withPropertyValues(
+                        "springdoc.api-docs.enabled=true",
+                        "springdoc.enable-hateoas=true"
+                )
+                .withConfiguration(AutoConfigurations.of(
+                        WebMvcAutoConfiguration.class,
+                        HateoasConfiguration.class,
+                        SpringDocConfiguration.class,
+                        SpringDocConfigProperties.class,
+                        SpringDocHateoasConfiguration.class
+                ))
+                .run(context -> {
+                    assertThat(context).getBeanNames(GlobalOpenApiCustomizer.class)
+                        .hasSize(1)
+                        .containsExactly(LINKS_SCHEMA_CUSTOMISER);
+                    assertThat(context.getBean(LINKS_SCHEMA_CUSTOMISER)).isExactlyInstanceOf(OpenApiHateoasLinksCustomizer.class);
+                });
+    }
+
+    @Test
+    void linksSchemaCustomizerShouldBeRegisteredWithMultipleGlobalOpenApiCustomizer() {
+        new WebApplicationContextRunner()
+                .withPropertyValues(
+                        "springdoc.api-docs.enabled=true",
+                        "springdoc.enable-hateoas=true"
+                )
+                .withConfiguration(AutoConfigurations.of(
+                        WebMvcAutoConfiguration.class,
+                        HateoasConfiguration.class,
+                        SpringDocConfiguration.class,
+                        SpringDocConfigProperties.class,
+                        SpringDocHateoasConfiguration.class
+                ))
+                .withBean("globalOpenApiCustomizer", GlobalOpenApiCustomizer.class, () -> mock(GlobalOpenApiCustomizer.class))
+                .run(context -> {
+                    assertThat(context).getBeanNames(GlobalOpenApiCustomizer.class)
+                            .hasSize(2)
+                            .containsExactlyInAnyOrder(LINKS_SCHEMA_CUSTOMISER, "globalOpenApiCustomizer");
+                });
+    }
+
+    @Test
+    void linksSchemaCustomizerShouldNotBeRegisteredIfBeanWithSameNameAlreadyExists() {
+        new WebApplicationContextRunner()
+                .withPropertyValues(
+                        "springdoc.api-docs.enabled=true",
+                        "springdoc.enable-hateoas=true"
+                )
+                .withConfiguration(AutoConfigurations.of(
+                        WebMvcAutoConfiguration.class,
+                        HateoasConfiguration.class,
+                        SpringDocConfiguration.class,
+                        SpringDocConfigProperties.class,
+                        SpringDocHateoasConfiguration.class
+                ))
+                .withBean(LINKS_SCHEMA_CUSTOMISER, GlobalOpenApiCustomizer.class, () -> mock(GlobalOpenApiCustomizer.class))
+                .run(context -> {
+                    assertThat(context).getBeanNames(GlobalOpenApiCustomizer.class)
+                            .hasSize(1)
+                            .containsExactly(LINKS_SCHEMA_CUSTOMISER);
+                    assertThat(context.getBean(LINKS_SCHEMA_CUSTOMISER)).isNotExactlyInstanceOf(OpenApiHateoasLinksCustomizer.class);
+                });
+    }
+}