content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *    http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  package org.apache.spark.launcher;
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.List;
  
  import org.junit.Test;
  import static org.junit.Assert.*;
  
  import static org.apache.spark.launcher.CommandBuilderUtils.*;
  
  public class CommandBuilderUtilsSuite {
  
    @Test
    public void testValidOptionStrings() {
      testOpt("a b c d e", Arrays.asList("a", "b", "c", "d", "e"));
      testOpt("a 'b c' \"d\" e", Arrays.asList("a", "b c", "d", "e"));
      testOpt("a 'b\\\"c' \"'d'\" e", Arrays.asList("a", "b\\\"c", "'d'", "e"));
      testOpt("a 'b\"c' \"\\\"d\\\"\" e", Arrays.asList("a", "b\"c", "\"d\"", "e"));
      testOpt(" a b c \\\\ ", Arrays.asList("a", "b", "c", "\\"));
  
      // Following tests ported from UtilsSuite.scala.
      testOpt("", new ArrayList<String>());
      testOpt("a", Arrays.asList("a"));
      testOpt("aaa", Arrays.asList("aaa"));
      testOpt("a b c", Arrays.asList("a", "b", "c"));
      testOpt("  a   b\t c ", Arrays.asList("a", "b", "c"));
      testOpt("a 'b c'", Arrays.asList("a", "b c"));
      testOpt("a 'b c' d", Arrays.asList("a", "b c", "d"));
      testOpt("'b c'", Arrays.asList("b c"));
      testOpt("a \"b c\"", Arrays.asList("a", "b c"));
      testOpt("a \"b c\" d", Arrays.asList("a", "b c", "d"));
      testOpt("\"b c\"", Arrays.asList("b c"));
      testOpt("a 'b\" c' \"d' e\"", Arrays.asList("a", "b\" c", "d' e"));
      testOpt("a\t'b\nc'\nd", Arrays.asList("a", "b\nc", "d"));
      testOpt("a \"b\\\\c\"", Arrays.asList("a", "b\\c"));
      testOpt("a \"b\\\"c\"", Arrays.asList("a", "b\"c"));
      testOpt("a 'b\\\"c'", Arrays.asList("a", "b\\\"c"));
      testOpt("'a'b", Arrays.asList("ab"));
      testOpt("'a''b'", Arrays.asList("ab"));
      testOpt("\"a\"b", Arrays.asList("ab"));
      testOpt("\"a\"\"b\"", Arrays.asList("ab"));
      testOpt("''", Arrays.asList(""));
      testOpt("\"\"", Arrays.asList(""));
    }
  
    @Test
    public void testInvalidOptionStrings() {
      testInvalidOpt("\\");
      testInvalidOpt("\"abcde");
      testInvalidOpt("'abcde");
    }
  
    @Test
    public void testWindowsBatchQuoting() {
      assertEquals("abc", quoteForBatchScript("abc"));
      assertEquals("\"a b c\"", quoteForBatchScript("a b c"));
      assertEquals("\"a \"\"b\"\" c\"", quoteForBatchScript("a \"b\" c"));
      assertEquals("\"a\"\"b\"\"c\"", quoteForBatchScript("a\"b\"c"));
      assertEquals("\"ab=\"\"cd\"\"\"", quoteForBatchScript("ab=\"cd\""));
      assertEquals("\"a,b,c\"", quoteForBatchScript("a,b,c"));
      assertEquals("\"a;b;c\"", quoteForBatchScript("a;b;c"));
      assertEquals("\"a,b,c\\\\\"", quoteForBatchScript("a,b,c\\"));
    }
  
    @Test
    public void testPythonArgQuoting() {
      assertEquals("\"abc\"", quoteForCommandString("abc"));
      assertEquals("\"a b c\"", quoteForCommandString("a b c"));
      assertEquals("\"a \\\"b\\\" c\"", quoteForCommandString("a \"b\" c"));
    }
  
    @Test
    public void testJavaMajorVersion() {
      assertEquals(6, javaMajorVersion("1.6.0_50"));
      assertEquals(7, javaMajorVersion("1.7.0_79"));
      assertEquals(8, javaMajorVersion("1.8.0_66"));
      assertEquals(9, javaMajorVersion("9-ea"));
      assertEquals(9, javaMajorVersion("9+100"));
      assertEquals(9, javaMajorVersion("9"));
      assertEquals(9, javaMajorVersion("9.1.0"));
      assertEquals(10, javaMajorVersion("10"));
    }
  
    @Test
    public void testAddPermGenSizeOpt() {
      List<String> cmd = new ArrayList<>();
  
      if (javaMajorVersion(System.getProperty("java.version")) > 7) {
        // Does nothing in Java 8
        addPermGenSizeOpt(cmd);
        assertEquals(0, cmd.size());
        cmd.clear();
  
      } else {
        addPermGenSizeOpt(cmd);
        assertEquals(1, cmd.size());
        assertTrue(cmd.get(0).startsWith("-XX:MaxPermSize="));
        cmd.clear();
  
        cmd.add("foo");
        addPermGenSizeOpt(cmd);
        assertEquals(2, cmd.size());
        assertTrue(cmd.get(1).startsWith("-XX:MaxPermSize="));
        cmd.clear();
  
        cmd.add("-XX:MaxPermSize=512m");
        addPermGenSizeOpt(cmd);
        assertEquals(1, cmd.size());
        assertEquals("-XX:MaxPermSize=512m", cmd.get(0));
        cmd.clear();
  
        cmd.add("'-XX:MaxPermSize=512m'");
        addPermGenSizeOpt(cmd);
        assertEquals(1, cmd.size());
        assertEquals("'-XX:MaxPermSize=512m'", cmd.get(0));
        cmd.clear();
      }
    }
  
    private static void testOpt(String opts, List<String> expected) {
      assertEquals(String.format("test string failed to parse: [[ %s ]]", opts),
          expected, parseOptionString(opts));
    }
  
    private static void testInvalidOpt(String opts) {
      try {
        parseOptionString(opts);
        fail("Expected exception for invalid option string.");
      } catch (IllegalArgumentException e) {
        // pass.
      }
    }
  
  }
  