Harmonize component scan in slice tests

This commit updates ConfigurationPropertiesScanRegistrar to apply the
same component scan filters than the ones applied on standard classpath
scanning.

As a result, configuration properties scanning is automatically disabled
in slice tests and can be included by an explicit import or a dedicated
TypeFilter implementation if necessary.

Closes gh-16659

spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/web/client/ExampleProperties.java

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2012-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.test.autoconfigure.web.client;
+
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.boot.context.properties.bind.DefaultValue;
+
+/**
+ * Example {@link ConfigurationProperties} used to test the use of configuration
+ * properties scan with sliced test.
+ *
+ * @author Stephane Nicoll
+ */
+@ConfigurationProperties("example")
+public class ExampleProperties {
+
+	private final String name;
+
+	public ExampleProperties(@DefaultValue("test") String name) {
+		this.name = name;
+	}
+
+	public String getName() {
+		return this.name;
+	}
+
+}

spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/web/client/RestClientTestNoComponentIntegrationTests.java

@@ -53,6 +53,12 @@ class RestClientTestNoComponentIntegrationTests {
 				.isThrownBy(() -> this.applicationContext.getBean(ExampleRestClient.class));
 	}
 
+	@Test
+	void examplePropertiesIsNotInjected() {
+		assertThatExceptionOfType(NoSuchBeanDefinitionException.class)
+				.isThrownBy(() -> this.applicationContext.getBean(ExampleProperties.class));
+	}
+
 	@Test
 	void manuallyCreateBean() {
 		ExampleRestClient client = new ExampleRestClient(this.restTemplateBuilder);

spring-boot-project/spring-boot-test-autoconfigure/src/test/java/org/springframework/boot/test/autoconfigure/web/client/RestClientTestWithConfigurationPropertiesIntegrationTests.java

@@ -0,0 +1,46 @@
+/*
+ * Copyright 2012-2019 the original author or authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.springframework.boot.test.autoconfigure.web.client;
+
+import org.junit.jupiter.api.Test;
+
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.context.properties.ConfigurationProperties;
+import org.springframework.context.ApplicationContext;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+/**
+ * Tests for {@link RestClientTest @RestClientTest} with a {@link ConfigurationProperties}
+ * annotated type.
+ *
+ * @author Stephane Nicoll
+ */
+@RestClientTest(components = ExampleProperties.class, properties = "example.name=Hello")
+class RestClientTestWithConfigurationPropertiesIntegrationTests {
+
+	@Autowired
+	private ApplicationContext applicationContext;
+
+	@Test
+	void configurationPropertiesCanBeAddedAsComponent() {
+		assertThat(this.applicationContext.getBeansOfType(ExampleProperties.class).keySet())
+				.containsOnly("example-org.springframework.boot.test.autoconfigure.web.client.ExampleProperties");
+		assertThat(this.applicationContext.getBean(ExampleProperties.class).getName()).isEqualTo("Hello");
+	}
+
+}