Allow to specify multiple auto-configs in autoConfigFirst

spring-boot-test/src/test/java/org/springframework/boot/test/rule/ContextLoaderTests.java

@@ -145,6 +145,16 @@ public class ContextLoaderTests {
 				assertThat(context.getBean("a")).isEqualTo("a"));
 	}
 
+	@Test
+	public void autoConfigureFirstWithSeveralConfigsIsAppliedProperly() {
+		this.contextLoader.autoConfig(ConfigA.class, ConfigB.class)
+				.autoConfigFirst(AutoConfigA.class, AutoConfigB.class)
+				.load(context -> {
+					assertThat(context.getBean("a")).isEqualTo("a");
+					assertThat(context.getBean("b")).isEqualTo(1);
+				});
+	}
+
 	@Test
 	public void autoConfigurationIsAdditive() {
 		this.contextLoader.autoConfig(AutoConfigA.class)