### Question:
TemplateManager implements TemplatingExecutor, TemplateProcessor { @SuppressWarnings({"java:S112"}) public String readTemplate(String name) { if (name == null || name.contains("..")) { throw new IllegalArgumentException("Template location must be constrained to template directory."); } try { Reader reader = getTemplateReader(name); if (reader == null) { throw new RuntimeException("no file found"); } Scanner s = new Scanner(reader).useDelimiter("\\A"); return s.hasNext() ? s.next() : ""; } catch (Exception e) { LOGGER.error(e.getMessage()); } throw new RuntimeException("can't load template " + name); } TemplateManager(
            TemplateManagerOptions options,
            TemplatingEngineAdapter engineAdapter,
            TemplatePathLocator[] templateLoaders); @Override String getFullTemplateContents(String name); @Override Path getFullTemplatePath(String name); static String getCPResourcePath(final String name); @SuppressWarnings({"java:S112"}) // ignored rule java:S112 as RuntimeException is used to match previous exception type String readTemplate(String name); @SuppressWarnings({"squid:S2095", "java:S112"}) // ignored rule squid:S2095 as used in the CLI and it's required to return a reader // ignored rule java:S112 as RuntimeException is used to match previous exception type Reader getTemplateReader(String name); @Override File write(Map<String, Object> data, String template, File target); @Override void ignore(Path path, String context); @Override void skip(Path path, String context); File writeToFile(String filename, String contents); File writeToFile(String filename, byte[] contents);  }### Answer:
@Test public void readTemplate(){ TemplateManagerOptions opts = new TemplateManagerOptions(false,false); TemplateManager manager = new TemplateManager(opts, mustacheEngineAdapter, new TemplatePathLocator[]{ locator }); assertEquals(manager.readTemplate("templating/templates/simple.mustache"), "{{name}} and {{age}}"); }