### Question:
BuiltInTypeImportHelper { public static boolean isBuiltIn(final Import importedType) { final String type = importedType.getType(); return isBuiltIn(type); } private  BuiltInTypeImportHelper(); static boolean isBuiltIn(final Import importedType); static boolean isBuiltIn(final String type);  }### Answer:
@Test public void testIsImportBuiltInNull() { assertFalse("null is not built in", BuiltInTypeImportHelper.isBuiltIn(new Import())); }
@Test public void testIsImportBuiltInEmpty() { assertFalse("empty is not built in", BuiltInTypeImportHelper.isBuiltIn(new Import(""))); }
@Test public void testIsImportBuiltInJavaLang() { assertTrue("java.lang.* is built in", BuiltInTypeImportHelper.isBuiltIn(new Import("java.lang.Number"))); }
@Test public void testIsImportRemovableJavaUtil() { assertTrue("java.util.* is built in", BuiltInTypeImportHelper.isBuiltIn(new Import("java.util.ArrayList"))); }
@Test public void testIsImportBuiltInRegular() { assertFalse("Person is not built in", BuiltInTypeImportHelper.isBuiltIn(new Import("com.sample.Person"))); }