### Question:
UrlUtil { public static String constructAbsoluteUrl(String theBase, String theEndpoint) { if (theEndpoint == null) { return null; } if (isAbsolute(theEndpoint)) { return theEndpoint; } if (theBase == null) { return theEndpoint; } try { return new URL(new URL(theBase), theEndpoint).toString(); } catch (MalformedURLException e) { ourLog.warn("Failed to resolve relative URL[" + theEndpoint + "] against absolute base[" + theBase + "]", e); return theEndpoint; } }  static String constructAbsoluteUrl(String theBase, String theEndpoint); static String constructRelativeUrl(String theParentExtensionUrl, String theExtensionUrl); static String escapeUrlParam(String theUnescaped); static boolean isAbsolute(String theValue); static boolean isNeedsSanitization(CharSequence theString); static boolean isValid(String theUrl); static RuntimeResourceDefinition parseUrlResourceType(FhirContext theCtx, String theUrl); static Map<String, String[]> parseQueryString(String theQueryString); static Map<String, String[]> parseQueryStrings(String... theQueryString); static UrlParts parseUrl(String theUrl); static String sanitizeUrlPart(IPrimitiveType<?> theString); static String sanitizeUrlPart(CharSequence theString); static String[] sanitizeUrlPart(String[] theParameterValues); static String unescape(String theString); static List<NameValuePair> translateMatchUrl(String theMatchUrl);  }### Answer:
@Test public void testConstructAbsoluteUrl() { assertEquals("http: assertEquals("http: assertEquals("http: assertEquals("http: assertEquals("http: assertEquals("http: }