### Question:
ConfigUtils { public String getSystemPropertyName(String key) { return "codekvast." + key; }  List<String> getNormalizedPackages(String packages); String getStringValue(Properties props, String propertyName, String defaultValue); String getStringValue2(
      Properties props, String propertyName1, String propertyName2, String defaultValue); Optional<String> getStringValue(Properties props, String propertyName); boolean getBooleanValue(Properties props, String key, boolean defaultValue); int getIntValue(Properties props, String key, int defaultValue); String getEnvVarName(String propertyName); String getSystemPropertyName(String key); List<File> getCommaSeparatedFileValues(String uriValues);  }### Answer:
@Test public void should_compute_codekvast_prefixed_system_property_names() { assertThat(getSystemPropertyName("fooBar"), is("codekvast.fooBar")); }