Allow to specify multiple auto-configs in autoConfigFirst

spring-boot-test/src/main/java/org/springframework/boot/test/context/ContextLoader.java

@@ -154,14 +154,16 @@ public class ContextLoader {
 	}
 
 	/**
-	 * Add the specified auto-configuration at the beginning so that it is
-	 * applied before any other existing auto-configurations, but after any
-	 * user configuration.
-	 * @param autoConfiguration the auto-configuration to add
+	 * Add the specified auto-configurations at the beginning (in that order) so that it
+	 * is applied before any other existing auto-configurations, but after any
+	 * user configuration. If {@code A} and {@code B} are specified, {@code A} will
+	 * be processed, then {@code B} and finally the rest of the existing
+	 * auto-configuration.
+	 * @param autoConfigurations the auto-configuration to add
 	 * @return this instance
 	 */
-	public ContextLoader autoConfigFirst(Class<?> autoConfiguration) {
-		this.autoConfigurations.addFirst(autoConfiguration);
+	public ContextLoader autoConfigFirst(Class<?>... autoConfigurations) {
+		this.autoConfigurations.addAll(0, Arrays.asList(autoConfigurations));
 		return this;
 	}
 

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)