private Map<Integer, String> headerNames(Map<Integer, TableHeader> headers) {
		return transformValues(headers, new Function<TableHeader, String>() {

			@Override
			public String apply(TableHeader header) {
				return header.getName();
			}
		});
	}
Tests for ModuleList.

@author Florent Biville
spring-xd-shell/src/test/java/org/springframework/xd/shell/command/ModuleListTests.java