Merge branch '2.6.x' into 2.7.x

Closes gh-30795

Author: wilkinsona

spring-boot-project/spring-boot-autoconfigure/src/test/java/org/springframework/boot/autoconfigure/batch/BatchDataSourceScriptDatabaseInitializerTests.java

@@ -16,13 +16,29 @@
 
 package org.springframework.boot.autoconfigure.batch;
 
+import java.io.IOException;
+import java.sql.Connection;
+import java.sql.DatabaseMetaData;
+import java.sql.SQLException;
+import java.util.List;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
 import javax.sql.DataSource;
 
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.EnumSource;
+import org.junit.jupiter.params.provider.EnumSource.Mode;
 
+import org.springframework.boot.jdbc.DatabaseDriver;
 import org.springframework.boot.sql.init.DatabaseInitializationSettings;
+import org.springframework.core.io.DefaultResourceLoader;
+import org.springframework.core.io.support.PathMatchingResourcePatternResolver;
+import org.springframework.test.util.ReflectionTestUtils;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.BDDMockito.given;
 import static org.mockito.BDDMockito.then;
 import static org.mockito.Mockito.mock;
 
@@ -45,4 +61,36 @@ void getSettingsWithPlatformDoesNotTouchDataSource() {
 		then(dataSource).shouldHaveNoInteractions();
 	}
 
+	@ParameterizedTest
+	@EnumSource(value = DatabaseDriver.class, mode = Mode.EXCLUDE, names = { "FIREBIRD", "GAE", "HANA", "INFORMIX",
+			"JTDS", "PHOENIX", "REDSHIFT", "TERADATA", "TESTCONTAINERS", "UNKNOWN" })
+	void batchSchemaCanBeLocated(DatabaseDriver driver) throws IOException, SQLException {
+		DefaultResourceLoader resourceLoader = new DefaultResourceLoader();
+		BatchProperties properties = new BatchProperties();
+		DataSource dataSource = mock(DataSource.class);
+		Connection connection = mock(Connection.class);
+		given(dataSource.getConnection()).willReturn(connection);
+		DatabaseMetaData metadata = mock(DatabaseMetaData.class);
+		given(connection.getMetaData()).willReturn(metadata);
+		String productName = (String) ReflectionTestUtils.getField(driver, "productName");
+		given(metadata.getDatabaseProductName()).willReturn(productName);
+		DatabaseInitializationSettings settings = BatchDataSourceScriptDatabaseInitializer.getSettings(dataSource,
+				properties.getJdbc());
+		List<String> schemaLocations = settings.getSchemaLocations();
+		assertThat(schemaLocations)
+				.allSatisfy((location) -> assertThat(resourceLoader.getResource(location).exists()).isTrue());
+	}
+
+	@Test
+	void batchHasExpectedBuiltInSchemas() throws IOException {
+		PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver();
+		List<String> schemaNames = Stream
+				.of(resolver.getResources("classpath:org/springframework/batch/core/schema-*.sql"))
+				.map((resource) -> resource.getFilename()).filter((resourceName) -> !resourceName.contains("-drop-"))
+				.collect(Collectors.toList());
+		assertThat(schemaNames).containsExactlyInAnyOrder("schema-derby.sql", "schema-sqlserver.sql",
+				"schema-mysql.sql", "schema-sqlite.sql", "schema-postgresql.sql", "schema-oracle10g.sql",
+				"schema-db2.sql", "schema-sqlf.sql", "schema-hsqldb.sql", "schema-sybase.sql", "schema-h2.sql");
+	}
+
 }