Document Liquibase default values

Closes gh-13765

spring-boot-project/spring-boot-autoconfigure/src/main/java/org/springframework/boot/autoconfigure/liquibase/LiquibaseProperties.java

@@ -66,12 +66,12 @@ public class LiquibaseProperties {
 	/**
 	 * Name of table to use for tracking change history.
 	 */
-	private String databaseChangeLogTable;
+	private String databaseChangeLogTable = "DATABASECHANGELOG";
 
 	/**
 	 * Name of table to use for tracking concurrent Liquibase usage.
 	 */
-	private String databaseChangeLogLockTable;
+	private String databaseChangeLogLockTable = "DATABASECHANGELOGLOCK";
 
 	/**
 	 * Whether to first drop the database schema.

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/liquibase/LiquibaseAutoConfigurationTests.java

@@ -127,6 +127,22 @@ public class LiquibaseAutoConfigurationTests {
 						.isEqualTo("classpath:/db/changelog/db.changelog-override.sql")));
 	}
 
+	@Test
+	public void defaultValues() {
+		this.contextRunner.withUserConfiguration(EmbeddedDataSourceConfiguration.class)
+				.run(assertLiquibase((liquibase) -> {
+					LiquibaseProperties properties = new LiquibaseProperties();
+					assertThat(liquibase.getDatabaseChangeLogTable())
+							.isEqualTo(properties.getDatabaseChangeLogTable());
+					assertThat(liquibase.getDatabaseChangeLogLockTable())
+							.isEqualTo(properties.getDatabaseChangeLogLockTable());
+					assertThat(liquibase.isDropFirst())
+							.isEqualTo(properties.isDropFirst());
+					assertThat(liquibase.isTestRollbackOnUpdate())
+							.isEqualTo(properties.isTestRollbackOnUpdate());
+				}));
+	}
+
 	@Test
 	public void overrideContexts() {
 		this.contextRunner.withUserConfiguration(EmbeddedDataSourceConfiguration.class)

spring-boot-project/spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc

@@ -568,8 +568,8 @@ content into your application. Rather, pick only the properties that you need.
 	spring.liquibase.default-schema= # Default database schema.
 	spring.liquibase.liquibase-schema= # Schema to use for Liquibase objects.
 	spring.liquibase.liquibase-tablespace= # Tablespace to use for Liquibase objects.
-	spring.liquibase.database-change-log-table= # Name of table to use for tracking change history.
-	spring.liquibase.database-change-log-lock-table= # Name of table to use for tracking concurrent Liquibase usage.
+	spring.liquibase.database-change-log-table=DATABASECHANGELOG # Name of table to use for tracking change history.
+	spring.liquibase.database-change-log-lock-table=DATABASECHANGELOGLOCK # Name of table to use for tracking concurrent Liquibase usage.
 	spring.liquibase.drop-first=false # Whether to first drop the database schema.
 	spring.liquibase.enabled=true # Whether to enable Liquibase support.
 	spring.liquibase.labels= # Comma-separated list of runtime labels to use.