### Question:
MetadataOptionParser { public final void parse(List<String> args) { Pattern eqSeparatedOpt = Pattern.compile("(--[^=]+)=(.*)"); int idx = 0; for (idx = 0; idx < args.size(); idx++) { String arg = args.get(idx); String value = null; Matcher matcher = eqSeparatedOpt.matcher(arg); if (matcher.matches()) { arg = matcher.group(1); value = matcher.group(2); } parseMetadataOptions(arg, value); } }  final void parse(List<String> args); Properties getProperties();  }### Answer:
@Test public void testEmptyDbType() { List<String> args = Arrays.asList("--dbType=", "--action=init"); try { metadataOptionParser.parse(args); } catch (Exception ex) { Assert.assertTrue(true); } }
@Test public void testErrorDbType() { List<String> args = Arrays.asList("--dbType=oracle", "--action=init"); try { metadataOptionParser.parse(args); } catch (Exception ex) { Assert.assertTrue(true); } }
@Test public void testErrorAction() { List<String> args = Arrays.asList("--dbType=mysql", "--action=initAndUpdate"); try { metadataOptionParser.parse(args); } catch (Exception ex) { Assert.assertTrue(true); } }
@Test public void testEmptyAction() { List<String> args = Arrays.asList("--dbType=mysql", "--action="); try { metadataOptionParser.parse(args); } catch (Exception ex) { Assert.assertTrue(true); } }