@Test(expected = NullPointerException.class) public void prefixWithSeparator_NULL() { fieldValuePrefixAdder.prefixWithSeparator(null); }
public String prefixWithSeparator(String fieldValuePrefix) { Preconditions.checkNotNull(fieldValuePrefix); return fieldValuePrefix + FIELD_VALUE_PREFIX_SEPARATOR; }
FieldValuePrefixAdder { public String prefixWithSeparator(String fieldValuePrefix) { Preconditions.checkNotNull(fieldValuePrefix); return fieldValuePrefix + FIELD_VALUE_PREFIX_SEPARATOR; } }
FieldValuePrefixAdder { public String prefixWithSeparator(String fieldValuePrefix) { Preconditions.checkNotNull(fieldValuePrefix); return fieldValuePrefix + FIELD_VALUE_PREFIX_SEPARATOR; }  }
FieldValuePrefixAdder { public String prefixWithSeparator(String fieldValuePrefix) { Preconditions.checkNotNull(fieldValuePrefix); return fieldValuePrefix + FIELD_VALUE_PREFIX_SEPARATOR; }  String addFieldPrefix(String prefix, String fieldValue); String prefixWithSeparator(String fieldValuePrefix); String extractFieldValue(String valueWithPrefix); }
FieldValuePrefixAdder { public String prefixWithSeparator(String fieldValuePrefix) { Preconditions.checkNotNull(fieldValuePrefix); return fieldValuePrefix + FIELD_VALUE_PREFIX_SEPARATOR; }  String addFieldPrefix(String prefix, String fieldValue); String prefixWithSeparator(String fieldValuePrefix); String extractFieldValue(String valueWithPrefix);  }