| /* |
| * Copyright (c) 2010, 2013, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Oracle designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Oracle in the LICENSE file that accompanied this code. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| package jdk.nashorn.internal.test.framework; |
| |
| import java.io.BufferedReader; |
| import java.io.ByteArrayOutputStream; |
| import java.io.File; |
| import java.io.FileReader; |
| import java.io.IOException; |
| import java.io.PrintStream; |
| import java.io.Reader; |
| |
| /** |
| * Simple utilities to deal with build-dir, read/dump files etc. |
| */ |
| @SuppressWarnings("javadoc") |
| public abstract class TestHelper { |
| |
| public static final String TEST_ROOT = "test"; |
| public static final String BUILD_ROOT = |
| System.getProperty("build.dir", "build") + File.separator + "test"; |
| public static final String TEST_PREFIX = TEST_ROOT + File.separator; |
| |
| private TestHelper() { |
| // empty |
| } |
| |
| protected static File makeBuildDir(final File testFile) { |
| final File buildDir = getBuildDir(testFile); |
| if (!new File(BUILD_ROOT).exists()) { |
| throw new IllegalArgumentException("no " + BUILD_ROOT + " directory in " + new File(".").getAbsolutePath()); |
| } |
| buildDir.mkdirs(); |
| return buildDir; |
| } |
| |
| protected static File getBuildDir(final File testFile) { |
| if (!testFile.getPath().startsWith(TEST_PREFIX)) { |
| throw new IllegalArgumentException("test file path not a relative pathname"); |
| } |
| final File buildDir = new File(BUILD_ROOT + File.separator + testFile.getParent().substring(TEST_PREFIX.length())); |
| return buildDir; |
| } |
| |
| // return the first line of the given file |
| protected static String firstLine(final File file) throws IOException { |
| return content(file, true); |
| } |
| |
| // return the full content of the file as a String |
| protected static String fullContent(final File file) throws IOException { |
| return content(file, false); |
| } |
| |
| private static String content(final File file, final boolean firstLine) throws IOException { |
| final ByteArrayOutputStream bos = new ByteArrayOutputStream(); |
| final PrintStream ps = new PrintStream(bos); |
| dumpFile(ps, file); |
| final String contents = bos.toString(); |
| |
| if (! firstLine) { |
| return contents; |
| } |
| |
| // else return only the first line, stripping the trailing cr, lf or cr+lf, |
| // if present |
| final int cr = contents.indexOf('\r'); |
| if (cr > 0) { |
| return contents.substring(0, cr); |
| } |
| final int lf = contents.indexOf('\n'); |
| if (lf > 0) { |
| return contents.substring(0, lf); |
| } |
| return contents; |
| } |
| |
| // dump the content of given reader on standard output |
| protected static void dumpFile(final Reader rdr) throws IOException { |
| dumpFile(System.out, rdr); |
| } |
| |
| // dump the content of given reader on given output stream |
| protected static void dumpFile(final PrintStream output, final Reader rdr) throws IOException { |
| try (BufferedReader reader = new BufferedReader(rdr)) { |
| while (true) { |
| final String line = reader.readLine(); |
| if (line == null) { |
| break; |
| } |
| output.println(line); |
| } |
| } |
| } |
| |
| // dump the content of given file on standard output |
| protected static void dumpFile(final File file) throws IOException { |
| dumpFile(System.out, file); |
| } |
| |
| // dump the content of given file on given output stream |
| protected static void dumpFile(final PrintStream output, final File file) throws IOException { |
| try (Reader rdr = new FileReader(file); BufferedReader reader = new BufferedReader(rdr)) { |
| while (true) { |
| final String line = reader.readLine(); |
| if (line == null) { |
| break; |
| } |
| output.println(line); |
| } |
| } |
| } |
| } |