Move namespace tests to root integration module

Prior to this change, spring-beans contained its own META-INF containing
spring.handlers and spring.schemas files in src/main/resources; it also
had files of the same name within src/test/resources/META-INF, causing
'duplicate resource' warnings and confusion in general.

This commit moves the com.foo test package, it's associated namespace
parsing tests and test versions of META-INF files to the root project
and it's src/test integration testing folder.

Issue: SPR-9431

src/test/java/com/foo/ComponentBeanDefinitionParser.java

@@ -0,0 +1,53 @@
+package com.foo;
+
+import java.util.List;
+
+import org.springframework.beans.factory.config.BeanDefinition;
+import org.springframework.beans.factory.support.AbstractBeanDefinition;
+import org.springframework.beans.factory.support.BeanDefinitionBuilder;
+import org.springframework.beans.factory.support.ManagedList;
+import org.springframework.beans.factory.xml.AbstractBeanDefinitionParser;
+import org.springframework.beans.factory.xml.ParserContext;
+import org.springframework.util.xml.DomUtils;
+import org.w3c.dom.Element;
+
+public class ComponentBeanDefinitionParser extends AbstractBeanDefinitionParser {
+
+	@Override
+	protected AbstractBeanDefinition parseInternal(Element element,
+			ParserContext parserContext) {
+		return parseComponentElement(element);
+	}
+
+	private static AbstractBeanDefinition parseComponentElement(Element element) {
+		BeanDefinitionBuilder factory = BeanDefinitionBuilder
+				.rootBeanDefinition(ComponentFactoryBean.class);
+
+		factory.addPropertyValue("parent", parseComponent(element));
+
+		List<Element> childElements = DomUtils.getChildElementsByTagName(
+				element, "component");
+		if (childElements != null && childElements.size() > 0) {
+			parseChildComponents(childElements, factory);
+		}
+
+		return factory.getBeanDefinition();
+	}
+
+	private static BeanDefinition parseComponent(Element element) {
+		BeanDefinitionBuilder component = BeanDefinitionBuilder
+				.rootBeanDefinition(Component.class);
+		component.addPropertyValue("name", element.getAttribute("name"));
+		return component.getBeanDefinition();
+	}
+
+	private static void parseChildComponents(List<Element> childElements,
+			BeanDefinitionBuilder factory) {
+		ManagedList<BeanDefinition> children = new ManagedList<BeanDefinition>(
+				childElements.size());
+		for (Element element : childElements) {
+			children.add(parseComponentElement(element));
+		}
+		factory.addPropertyValue("children", children);
+	}
+}