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Added parser test

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Paul H 2025-06-13 21:27:01 +02:00
commit 3ec833a5bd
18 changed files with 490 additions and 0 deletions
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target/
!.mvn/wrapper/maven-wrapper.jar
!**/src/main/**/target/
!**/src/test/**/target/
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<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>jcmd</artifactId>
<version>1.0-SNAPSHOT</version>
<properties>
<maven.compiler.source>17</maven.compiler.source>
<maven.compiler.target>17</maven.compiler.target>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<dependencies>
<dependency>
<groupId>org.junit.jupiter</groupId>
<artifactId>junit-jupiter-api</artifactId>
<version>5.13.1</version>
<scope>test</scope>
</dependency>
</dependencies>
</project>

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src/main/java/de/pabulaner/jcmd/Main.java Normal file
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package de.pabulaner.jcmd;
import de.pabulaner.jcmd.core.Line;
import de.pabulaner.jcmd.core.Parser;
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
Parser parser = null;
while (true) {
String raw = scanner.nextLine();
Line line = parser.parse(raw);
if (line.getCommand() != null) {
// line.getCommand().exec(line.getFlags(), line.getArgs());
}
}
}
}

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src/main/java/de/pabulaner/jcmd/command/CdCommand.java Normal file
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package de.pabulaner.jcmd.command;
import de.pabulaner.jcmd.core.Argument;
import de.pabulaner.jcmd.core.Command;
import de.pabulaner.jcmd.core.Flag;
import java.util.List;
public class CdCommand implements Command {
@Override
public int exec(List<Flag> flags, List<Argument> args) {
return 0;
}
@Override
public String getName() {
return null;
}
@Override
public List<Flag> getFlags() {
return null;
}
}

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src/main/java/de/pabulaner/jcmd/command/HelpCommand.java Normal file
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package de.pabulaner.jcmd.command;
import de.pabulaner.jcmd.core.Argument;
import de.pabulaner.jcmd.core.Command;
import de.pabulaner.jcmd.core.Flag;
import java.util.List;
public class HelpCommand implements Command {
@Override
public int exec(List<Flag> flags, List<Argument> args) {
return 0;
}
@Override
public String getName() {
return null;
}
@Override
public List<Flag> getFlags() {
return null;
}
}

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src/main/java/de/pabulaner/jcmd/command/LsCommand.java Normal file
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package de.pabulaner.jcmd.command;
import de.pabulaner.jcmd.core.Argument;
import de.pabulaner.jcmd.core.Command;
import de.pabulaner.jcmd.core.Flag;
import java.util.List;
public class LsCommand implements Command {
@Override
public int exec(List<Flag> flags, List<Argument> args) {
return 0;
}
@Override
public String getName() {
return null;
}
@Override
public List<Flag> getFlags() {
return null;
}
}

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src/main/java/de/pabulaner/jcmd/command/MkdirCommand.java Normal file
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package de.pabulaner.jcmd.command;
import de.pabulaner.jcmd.core.Argument;
import de.pabulaner.jcmd.core.Command;
import de.pabulaner.jcmd.core.Flag;
import java.util.List;
public class MkdirCommand implements Command {
@Override
public int exec(List<Flag> flags, List<Argument> args) {
return 0;
}
@Override
public String getName() {
return null;
}
@Override
public List<Flag> getFlags() {
return null;
}
}

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src/main/java/de/pabulaner/jcmd/core/Argument.java Normal file
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package de.pabulaner.jcmd.core;
public class Argument {
private final String value;
public Argument(String value) {
this.value = value;
}
public String getValue() {
return value;
}
}

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src/main/java/de/pabulaner/jcmd/core/Command.java Normal file
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package de.pabulaner.jcmd.core;
import java.util.List;
public interface Command {
int exec(List<Flag> flags, List<Argument> args);
String getName();
List<Flag> getFlags();
}

28
src/main/java/de/pabulaner/jcmd/core/Flag.java Normal file
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package de.pabulaner.jcmd.core;
public class Flag {
private final String shortName;
private final String longName;
private final String description;
public Flag(String shortName, String longName, String description) {
this.shortName = shortName;
this.longName = longName;
this.description = description;
}
public String getShortName() {
return shortName;
}
public String getLongName() {
return longName;
}
public String getDescription() {
return description;
}
}

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src/main/java/de/pabulaner/jcmd/core/Line.java Normal file
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package de.pabulaner.jcmd.core;
import java.util.List;
public class Line {
private final String command;
private final List<String> flags;
private final List<String> args;
public Line(String command, List<String> flags, List<String> args) {
this.command = command;
this.flags = flags;
this.args = args;
}
public String getCommand() {
return command;
}
public List<String> getFlags() {
return flags;
}
public List<String> getArgs() {
return args;
}
//
// --- Please ignore this ---
//
// private final Command command;
//
// private final List<Flag> flags;
//
// private final List<Argument> args;
//
// public Line(Command command, List<Flag> flags, List<Argument> args) {
// this.command = command;
// this.flags = flags;
// this.args = args;
// }
//
// public Command getCommand() {
// return command;
// }
//
// public List<Flag> getFlags() {
// return flags;
// }
//
// public List<Argument> getArgs() {
// return args;
// }
}

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src/main/java/de/pabulaner/jcmd/core/Parser.java Normal file
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package de.pabulaner.jcmd.core;
public interface Parser {
void addCommand(Command command);
Line parse(String raw);
}

31
src/test/java/de/pabulaner/jcmd/core/ParserTest.java Normal file
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package de.pabulaner.jcmd.core;
import org.junit.jupiter.api.Test;
import java.util.List;
import static org.junit.jupiter.api.Assertions.*;
class ParserTest {
@Test
public void testParser() {
Parser parser = null; // <-- Your implementation goes here
testInput(parser, "ls", "ls", List.of(), List.of());
testInput(parser, "ls -la", "ls", List.of("l", "a"), List.of());
testInput(parser, "ls ./hello/world", "ls", List.of(), List.of("./hello/world"));
testInput(parser, "ls -la ./what", "ls", List.of("l", "a"), List.of("./what"));
testInput(parser, "rm -r /bin /opt", "rm", List.of("r"), List.of("/bin", "/opt"));
testInput(parser, "cd .", "cd", List.of(), List.of("."));
testInput(parser, "mkdir .", "cd", List.of(), List.of("."));
}
private void testInput(Parser parser, String input, String expectedCommand, List<String> expectedFlags, List<String> expectedArgs) {
Line line = parser.parse(input);
assertEquals(expectedCommand, line.getCommand(), "Wrong command");
assertEquals(expectedFlags, line.getFlags(), "Wrong flags");
assertEquals(expectedArgs, line.getArgs(), "Wrong args");
}
}