/*
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 * The contents of this file are subject to the terms of the
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 * You may not use this file except in compliance with the License.
 *
 * See LICENSE.txt included in this distribution for the specific
 * language governing permissions and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at LICENSE.txt.
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/*
 * Copyright (c) 2008, 2021, Oracle and/or its affiliates. All rights reserved.
 * Portions Copyright (c) 2019, Chris Fraire <cfraire@me.com>.
 */
package org.opengrok.indexer.util;

import org.junit.jupiter.api.Test;

import java.io.BufferedReader;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;
import static org.junit.jupiter.api.Assertions.assertNull;
import static org.junit.jupiter.api.Assertions.assertTrue;

/**
 *
 * @author Trond Norbye
 */
public class ExecutorTest {

    @Test
    public void testString() {
        List<String> cmdList = new ArrayList<>();
        cmdList.add("echo");
        cmdList.add("testing org.opengrok.indexer.util.Executor");
        Executor instance = new Executor(cmdList);
        assertEquals(0, instance.exec());
        assertTrue(instance.getOutputString().startsWith("testing org.opengrok.indexer.util.Executor"));
        String err = instance.getErrorString();
        assertEquals(0, err.length());
    }

    @Test
    public void testReader() throws IOException {
        List<String> cmdList = new ArrayList<>();
        cmdList.add("echo");
        cmdList.add("testing org.opengrok.indexer.util.Executor");
        Executor instance = new Executor(cmdList);
        assertEquals(0, instance.exec());
        BufferedReader in = new BufferedReader(instance.getOutputReader());
        assertEquals("testing org.opengrok.indexer.util.Executor", in.readLine());
        in.close();
        in = new BufferedReader(instance.getErrorReader());
        assertNull(in.readLine());
        in.close();
    }

    @Test
    public void testStream() throws IOException {
        List<String> cmdList = new ArrayList<>();
        cmdList.add("echo");
        cmdList.add("testing org.opengrok.indexer.util.Executor");
        Executor instance = new Executor(cmdList, new File("."));
        assertEquals(0, instance.exec());
        assertNotNull(instance.getOutputStream());
        assertNotNull(instance.getErrorStream());
        BufferedReader in = new BufferedReader(instance.getOutputReader());
        assertEquals("testing org.opengrok.indexer.util.Executor", in.readLine());
        in.close();
        in = new BufferedReader(instance.getErrorReader());
        assertNull(in.readLine());
        in.close();
    }

    @Test
    public void testEscapeForBourneSingleLine() {
        List<String> argv = Arrays.asList("/usr/bin/foo", "--value=\n\r\f\u0011\t\\'");
        String s = Executor.escapeForShell(argv, false, false);
        assertEquals("/usr/bin/foo --value=$'\\n\\r\\f\\v\\t\\\\\\''", s);
    }

    @Test
    public void testEscapeForBourneMultiLine() {
        List<String> argv = Arrays.asList("/usr/bin/foo", "--value", "\n\r\f\u0011\t\\'");
        String s = Executor.escapeForShell(argv, true, false);
        assertEquals("/usr/bin/foo \\" + System.lineSeparator() +
                "\t--value \\" + System.lineSeparator() +
                "\t$'\\n\\r\\f\\v\\t\\\\\\''", s);
    }

    @Test
    public void testEscapeForWindowsSingleLine() {
        List<String> argv = Arrays.asList("C:\\foo", "--value=\n\r\f\u0011\t`\"$a", "/");
        String s = Executor.escapeForShell(argv, false, true);
        assertEquals("C:\\foo --value=\"`n`r`f`v`t```\"`$a\" /", s);
    }

    @Test
    public void testEscapeForWindowsMultiLine() {
        List<String> argv = Arrays.asList("C:\\foo", "--value", "\n\r\f\u0011\t`\"$a", "/");
        String s = Executor.escapeForShell(argv, true, true);
        assertEquals("C:\\foo `" + System.lineSeparator() +
                "\t--value `" + System.lineSeparator() +
                "\t\"`n`r`f`v`t```\"`$a\" `" + System.lineSeparator() +
                "\t/", s);
    }
}