@Test
	public void testBlankSuffix() throws Exception {
		testFileSinkSource("", "--suffix=' '");
	}
Tests to explicitly assert file related source and sink behavior.

@author Eric Bottard
@author David Turanski
@author Franck Marchand
spring-xd-shell/src/test/java/org/springframework/xd/shell/command/AbstractFileSourceAndFileSinkTests.java