### Question:
PreProcessor { static String preProcess(String chemicalName) throws PreProcessingException { chemicalName = chemicalName.trim(); if (chemicalName.length() == 0){ throw new PreProcessingException("Input chemical name was blank!"); } chemicalName = performMultiCharacterReplacements(chemicalName); chemicalName = StringTools.convertNonAsciiAndNormaliseRepresentation(chemicalName); return chemicalName; }    }### Answer:
@Test(expected=PreProcessingException.class) public void testPreProcessBlankThrows() throws PreProcessingException { PreProcessor.preProcess(""); }
@Test public void testPreProcessConvertsDollarA() throws PreProcessingException { assertEquals("Convert dollar-a", "alpha-bromo", PreProcessor.preProcess("$a-bromo")); }
@Test public void testPreProcessConvertsDollarB() throws PreProcessingException { assertEquals("Convert dollar-b", "beta-bromo", PreProcessor.preProcess("$b-bromo")); }
@Test public void testPreProcessConvertsDollarG() throws PreProcessingException { assertEquals("Convert dollar-g", "gamma-bromo", PreProcessor.preProcess("$g-bromo")); }
@Test public void testPreProcessConvertsDollarD() throws PreProcessingException { assertEquals("Convert dollar-d", "delta-bromo", PreProcessor.preProcess("$d-bromo")); }
@Test public void testPreProcessConvertsDollarE() throws PreProcessingException { assertEquals("Convert dollar-e", "epsilon-bromo", PreProcessor.preProcess("$e-bromo")); }
@Test public void testPreProcessConvertsDollarL() throws PreProcessingException { assertEquals("Convert dollar-l", "lambda-bromo", PreProcessor.preProcess("$l-bromo")); }
@Test public void testPreProcessConvertsGreekLetterToWord() throws PreProcessingException { assertEquals("Convert greek to word", "alpha-bromo", PreProcessor.preProcess("\u03b1-bromo")); }
@Test public void testPreProcessConvertsSulphToSulf() throws PreProcessingException { assertEquals("Converts 'sulph' to 'sulph'", "sulfur dioxide", PreProcessor.preProcess("sulphur dioxide")); }
@Test public void testRemovalOfDotsFromGreekWords1() throws PreProcessingException { assertEquals("Converts '.alpha.' to 'alpha'", "alpha-methyl-toluene", PreProcessor.preProcess(".alpha.-methyl-toluene")); }
@Test public void testRemovalOfDotsFromGreekWords2() throws PreProcessingException { assertEquals("alphabetaeta", PreProcessor.preProcess(".alpha..beta..eta.")); }
@Test public void testHtmlGreeks() throws PreProcessingException { assertEquals("alpha-methyl-toluene", PreProcessor.preProcess("&alpha;-methyl-toluene")); assertEquals("beta-methyl-styrene", PreProcessor.preProcess("&BETA;-methyl-styrene")); }