### Question:
GitUtils { public static boolean isValidRemoteRepository(String remoteGitUrl) { if(StringUtils.isBlank(remoteGitUrl)) { return false; } URIish uriish = null; try { uriish = new URIish(remoteGitUrl); } catch (URISyntaxException e) { return false; } if(!uriish.isRemote()) { return false; } try { return !Git.lsRemoteRepository().setHeads(false).setTags(false).setRemote(remoteGitUrl).call().isEmpty(); } catch (GitAPIException e) { return false; } }  static boolean isGitRepo(Path gitRootFolder); static int getLogCount(Path gitRootFolder); static String init(Path gitRepoPath, String gitUserName, String gitUserMail); static GitInit beginInit(Path gitRepoPath, String gitUserName, String gitUserMail); static String commit(
			Path gitRootPath, 
			String relativePath,
			String fileName,
			String fileContent, 
			String authorName, 
			String authorMail, 
			String commitMessage); static String addAllAndCommit(Path gitRepoPath, String authorName, String authorMail, String commitMessage); static String commit(
			Path gitRepoPath, 
			String authorName, 
			String authorMail,
			String commitMessage); static void pull(Path gitRepoPath); static void pullWithTag(Path gitRepoPath); static void delete(String gitRepoPath); static int getTagCount(Path gitRepoPath); static Ref tag(Path gitRepoPath, String tagName, String message); static String tagThenReturnCommitId(Path gitRepoPath, String tagName, String message); static Optional<Ref> getTag(Path gitRepoPath, String tagName); static Optional<Ref> getLatestTag(Path gitRepoPath); static List<Ref> getTags(Path gitRepoPath); static void clone(String remoteGitUrl, Path localFolderPath); static void syncRepository(String repository, Path localFolderPath); static RevCommit getLatestCommit(Path gitRepoPath); static RevCommit getLatestCommit(Path gitRepoPath, String relativeFilePath); static List<GitFileInfo> getFiles(Path gitRepoPath, String relativeDir); static List<GitFileInfo> readAllFileInfo(Path gitRepoPath, String refName, String pathSuffix); static Optional<GitBlobInfo> getBlob(Path gitRepoPath, String ref, String filePath); static List<GitBlobInfo> loadDataFromTag(Path gitRepoPath, String refName, List<GitFileInfo> files); static List<GitBlobInfo> readAllFileContent(Path gitRepoPath, String refName, TreeFilter treeFilter); static Map<String, GitFileStatus> status(Path gitRepoPath, String relativeDir); static void add(Path gitRepoPath, String filePattern); static void add(Path gitRepoPath, String[] filePatterns); static void remove(Path gitRepoPath, String filePattern); static void removeFromIndex(Path gitRepoPath, String[] filePatterns); static void reset(Path gitRepoPath, String[] pathes); static void main(String[] args); static boolean isValidRemoteRepository(String remoteGitUrl); static Optional<String> getTagName(String refName); static Optional<String> getVersionFromRefName(String refName); static void checkout(Path gitRepoPath, String branchOrTagName); static String getCurrentBranch(Path gitRepoPath); static String getCurrentTag(Path gitRepoPath);  }### Answer:
@Test public void is_valid_remote_repository() { assertThat(GitUtils.isValidRemoteRepository(" ")).isFalse(); assertThat(GitUtils.isValidRemoteRepository("x")).isFalse(); assertThat(GitUtils.isValidRemoteRepository("https: assertThat(GitUtils.isValidRemoteRepository("https: }