Add `PathUtils`

src/java/iced-x86/src/test/java/com/github/icedland/iced/x86/PathUtils.java

@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: MIT
+// Copyright (C) 2018-present iced project and contributors
+
+package com.github.icedland.iced.x86;
+
+import java.nio.file.Path;
+import java.nio.file.Paths;
+import java.util.ArrayList;
+import java.util.Arrays;
+
+public final class PathUtils {
+	private static Path rootDir = getIcedRootDir();
+
+	private static Path getIcedRootDir() {
+		final String ENV_ROOT_NAME = "ICED_REPO_ROOT_DIR";
+		String envRootDir = System.getenv(ENV_ROOT_NAME);
+		Path rootDir = null;
+		if (envRootDir != null)
+			rootDir = Paths.get(envRootDir).toAbsolutePath();
+		else {
+			// This code assumes the dir is "<repo-root>/src/java/iced-x86"
+			String userDir = System.getProperty("user.dir");
+			if (userDir != null) {
+				Path path = Paths.get(userDir);
+				rootDir = path.toAbsolutePath().getParent().getParent().getParent();
+			}
+		}
+
+		if (rootDir != null && rootDir.resolve("LICENSE.txt").toFile().exists())
+			return rootDir;
+
+		throw new UnsupportedOperationException(String.format("Couldn't find the iced repo root dir. Try setting %s env var to the root of the repo", ENV_ROOT_NAME));
+	}
+
+	public static String getTestTextFilename(String... items) {
+		ArrayList<String> dirs = new ArrayList<String>();
+		dirs.addAll(Arrays.asList("src", "UnitTests", "Intel"));
+		dirs.addAll(Arrays.asList(items));
+		Path path = Paths.get(rootDir.toString(), dirs.toArray(new String[dirs.size()]));
+		String result = path.toAbsolutePath().normalize().toString();
+		System.out.println("path: " + result);
+		return result;
+	}
+}