@Test
public void extractPlaceholders_validURI_PlaceholdersInMainPartOfURIOnly() {

	List<String> placeholders = URISignatureHandler
			.extractPlaceholders(validURI_PlaceholdersInMainPartOfURIOnly);
	assertNotNull(placeholders);
	assertEquals(2, placeholders.size());
	assertEquals("Wrong first placeholder", "sop_id", placeholders.get(0));
	assertEquals("Wrong second placeholder", "cond_id", placeholders.get(1));
}