diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..dfcb430
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,178 @@
+# Created by https://www.toptal.com/developers/gitignore/api/gradle,macos,intellij+iml,java
+# Edit at https://www.toptal.com/developers/gitignore?templates=gradle,macos,intellij+iml,java
+
+### Intellij+iml ###
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio, WebStorm and Rider
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff
+.idea/**/workspace.xml
+.idea/**/tasks.xml
+.idea/**/usage.statistics.xml
+.idea/**/dictionaries
+.idea/**/shelf
+.idea
+
+# AWS User-specific
+.idea/**/aws.xml
+
+# Generated files
+.idea/**/contentModel.xml
+
+# Sensitive or high-churn files
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
+.idea/**/dbnavigator.xml
+
+# Gradle
+.idea/**/gradle.xml
+.idea/**/libraries
+
+# Gradle and Maven with auto-import
+# When using Gradle or Maven with auto-import, you should exclude module files,
+# since they will be recreated, and may cause churn.  Uncomment if using
+# auto-import.
+# .idea/artifacts
+# .idea/compiler.xml
+# .idea/jarRepositories.xml
+# .idea/modules.xml
+# .idea/*.iml
+# .idea/modules
+# *.iml
+# *.ipr
+
+# CMake
+cmake-build-*/
+
+# Mongo Explorer plugin
+.idea/**/mongoSettings.xml
+
+# File-based project format
+*.iws
+
+# IntelliJ
+out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Cursive Clojure plugin
+.idea/replstate.xml
+
+# SonarLint plugin
+.idea/sonarlint/
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
+# Editor-based Rest Client
+.idea/httpRequests
+
+# Android studio 3.1+ serialized cache file
+.idea/caches/build_file_checksums.ser
+
+### Intellij+iml Patch ###
+# Reason: https://github.com/joeblau/gitignore.io/issues/186#issuecomment-249601023
+
+*.iml
+modules.xml
+.idea/misc.xml
+*.ipr
+
+### Java ###
+# Compiled class file
+*.class
+
+# Log file
+*.log
+
+# BlueJ files
+*.ctxt
+
+# Mobile Tools for Java (J2ME)
+.mtj.tmp/
+
+# Package Files #
+*.jar
+*.war
+*.nar
+*.ear
+*.zip
+*.tar.gz
+*.rar
+
+# virtual machine crash logs, see http://www.java.com/en/download/help/error_hotspot.xml
+hs_err_pid*
+replay_pid*
+
+### macOS ###
+# General
+.DS_Store
+.AppleDouble
+.LSOverride
+
+# Icon must end with two \r
+Icon
+
+
+# Thumbnails
+._*
+
+# Files that might appear in the root of a volume
+.DocumentRevisions-V100
+.fseventsd
+.Spotlight-V100
+.TemporaryItems
+.Trashes
+.VolumeIcon.icns
+.com.apple.timemachine.donotpresent
+
+# Directories potentially created on remote AFP share
+.AppleDB
+.AppleDesktop
+Network Trash Folder
+Temporary Items
+.apdisk
+
+### macOS Patch ###
+# iCloud generated files
+*.icloud
+
+### Gradle ###
+.gradle
+**/build/
+!src/**/build/
+
+# Ignore Gradle GUI config
+gradle-app.setting
+
+# Avoid ignoring Gradle wrapper jar file (.jar files are usually ignored)
+!gradle-wrapper.jar
+
+# Avoid ignore Gradle wrappper properties
+!gradle-wrapper.properties
+
+# Cache of project
+.gradletasknamecache
+
+# Eclipse Gradle plugin generated files
+# Eclipse Core
+.project
+# JDT-specific (Eclipse Java Development Tools)
+.classpath
+
+### Gradle Patch ###
+# Java heap dump
+*.hprof
+
+# End of https://www.toptal.com/developers/gitignore/api/gradle,macos,intellij+iml,java
diff --git a/build.gradle.kts b/build.gradle.kts
new file mode 100644
index 0000000..78649b0
--- /dev/null
+++ b/build.gradle.kts
@@ -0,0 +1,20 @@
+plugins {
+    id("java")
+}
+
+group = "org.example"
+version = "1.0-SNAPSHOT"
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    testImplementation(platform("org.junit:junit-bom:5.10.0"))
+    testImplementation("org.junit.jupiter:junit-jupiter")
+    testImplementation("org.assertj:assertj-core:3.24.2")
+}
+
+tasks.test {
+    useJUnitPlatform()
+}
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
new file mode 100644
index 0000000..249e583
Binary files /dev/null and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
new file mode 100644
index 0000000..f0bc8c3
--- /dev/null
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -0,0 +1,6 @@
+#Thu May 16 16:24:08 KST 2024
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.5-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
new file mode 100755
index 0000000..1b6c787
--- /dev/null
+++ b/gradlew
@@ -0,0 +1,234 @@
+#!/bin/sh
+
+#
+# Copyright © 2015-2021 the original authors.
+#
+# Licensed 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
+#
+#      https://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.
+#
+
+##############################################################################
+#
+#   Gradle start up script for POSIX generated by Gradle.
+#
+#   Important for running:
+#
+#   (1) You need a POSIX-compliant shell to run this script. If your /bin/sh is
+#       noncompliant, but you have some other compliant shell such as ksh or
+#       bash, then to run this script, type that shell name before the whole
+#       command line, like:
+#
+#           ksh Gradle
+#
+#       Busybox and similar reduced shells will NOT work, because this script
+#       requires all of these POSIX shell features:
+#         * functions;
+#         * expansions «$var», «${var}», «${var:-default}», «${var+SET}»,
+#           «${var#prefix}», «${var%suffix}», and «$( cmd )»;
+#         * compound commands having a testable exit status, especially «case»;
+#         * various built-in commands including «command», «set», and «ulimit».
+#
+#   Important for patching:
+#
+#   (2) This script targets any POSIX shell, so it avoids extensions provided
+#       by Bash, Ksh, etc; in particular arrays are avoided.
+#
+#       The "traditional" practice of packing multiple parameters into a
+#       space-separated string is a well documented source of bugs and security
+#       problems, so this is (mostly) avoided, by progressively accumulating
+#       options in "$@", and eventually passing that to Java.
+#
+#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
+#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
+#       see the in-line comments for details.
+#
+#       There are tweaks for specific operating systems such as AIX, CygWin,
+#       Darwin, MinGW, and NonStop.
+#
+#   (3) This script is generated from the Groovy template
+#       https://github.com/gradle/gradle/blob/master/subprojects/plugins/src/main/resources/org/gradle/api/internal/plugins/unixStartScript.txt
+#       within the Gradle project.
+#
+#       You can find Gradle at https://github.com/gradle/gradle/.
+#
+##############################################################################
+
+# Attempt to set APP_HOME
+
+# Resolve links: $0 may be a link
+app_path=$0
+
+# Need this for daisy-chained symlinks.
+while
+    APP_HOME=${app_path%"${app_path##*/}"}  # leaves a trailing /; empty if no leading path
+    [ -h "$app_path" ]
+do
+    ls=$( ls -ld "$app_path" )
+    link=${ls#*' -> '}
+    case $link in             #(
+      /*)   app_path=$link ;; #(
+      *)    app_path=$APP_HOME$link ;;
+    esac
+done
+
+APP_HOME=$( cd "${APP_HOME:-./}" && pwd -P ) || exit
+
+APP_NAME="Gradle"
+APP_BASE_NAME=${0##*/}
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD=maximum
+
+warn () {
+    echo "$*"
+} >&2
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+} >&2
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "$( uname )" in                #(
+  CYGWIN* )         cygwin=true  ;; #(
+  Darwin* )         darwin=true  ;; #(
+  MSYS* | MINGW* )  msys=true    ;; #(
+  NONSTOP* )        nonstop=true ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD=$JAVA_HOME/jre/sh/java
+    else
+        JAVACMD=$JAVA_HOME/bin/java
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD=java
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if ! "$cygwin" && ! "$darwin" && ! "$nonstop" ; then
+    case $MAX_FD in #(
+      max*)
+        MAX_FD=$( ulimit -H -n ) ||
+            warn "Could not query maximum file descriptor limit"
+    esac
+    case $MAX_FD in  #(
+      '' | soft) :;; #(
+      *)
+        ulimit -n "$MAX_FD" ||
+            warn "Could not set maximum file descriptor limit to $MAX_FD"
+    esac
+fi
+
+# Collect all arguments for the java command, stacking in reverse order:
+#   * args from the command line
+#   * the main class name
+#   * -classpath
+#   * -D...appname settings
+#   * --module-path (only if needed)
+#   * DEFAULT_JVM_OPTS, JAVA_OPTS, and GRADLE_OPTS environment variables.
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if "$cygwin" || "$msys" ; then
+    APP_HOME=$( cygpath --path --mixed "$APP_HOME" )
+    CLASSPATH=$( cygpath --path --mixed "$CLASSPATH" )
+
+    JAVACMD=$( cygpath --unix "$JAVACMD" )
+
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    for arg do
+        if
+            case $arg in                                #(
+              -*)   false ;;                            # don't mess with options #(
+              /?*)  t=${arg#/} t=/${t%%/*}              # looks like a POSIX filepath
+                    [ -e "$t" ] ;;                      #(
+              *)    false ;;
+            esac
+        then
+            arg=$( cygpath --path --ignore --mixed "$arg" )
+        fi
+        # Roll the args list around exactly as many times as the number of
+        # args, so each arg winds up back in the position where it started, but
+        # possibly modified.
+        #
+        # NB: a `for` loop captures its iteration list before it begins, so
+        # changing the positional parameters here affects neither the number of
+        # iterations, nor the values presented in `arg`.
+        shift                   # remove old arg
+        set -- "$@" "$arg"      # push replacement arg
+    done
+fi
+
+# Collect all arguments for the java command;
+#   * $DEFAULT_JVM_OPTS, $JAVA_OPTS, and $GRADLE_OPTS can contain fragments of
+#     shell script including quotes and variable substitutions, so put them in
+#     double quotes to make sure that they get re-expanded; and
+#   * put everything else in single quotes, so that it's not re-expanded.
+
+set -- \
+        "-Dorg.gradle.appname=$APP_BASE_NAME" \
+        -classpath "$CLASSPATH" \
+        org.gradle.wrapper.GradleWrapperMain \
+        "$@"
+
+# Use "xargs" to parse quoted args.
+#
+# With -n1 it outputs one arg per line, with the quotes and backslashes removed.
+#
+# In Bash we could simply go:
+#
+#   readarray ARGS < <( xargs -n1 <<<"$var" ) &&
+#   set -- "${ARGS[@]}" "$@"
+#
+# but POSIX shell has neither arrays nor command substitution, so instead we
+# post-process each arg (as a line of input to sed) to backslash-escape any
+# character that might be a shell metacharacter, then use eval to reverse
+# that process (while maintaining the separation between arguments), and wrap
+# the whole thing up as a single "set" statement.
+#
+# This will of course break if any of these variables contains a newline or
+# an unmatched quote.
+#
+
+eval "set -- $(
+        printf '%s\n' "$DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS" |
+        xargs -n1 |
+        sed ' s~[^-[:alnum:]+,./:=@_]~\\&~g; ' |
+        tr '\n' ' '
+    )" '"$@"'
+
+exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
new file mode 100644
index 0000000..107acd3
--- /dev/null
+++ b/gradlew.bat
@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega
diff --git a/settings.gradle.kts b/settings.gradle.kts
new file mode 100644
index 0000000..e449c3e
--- /dev/null
+++ b/settings.gradle.kts
@@ -0,0 +1,2 @@
+rootProject.name = "play"
+
diff --git a/src/main/java/org/example/BaseBallGameBox.java b/src/main/java/org/example/BaseBallGameBox.java
new file mode 100644
index 0000000..b0da1cb
--- /dev/null
+++ b/src/main/java/org/example/BaseBallGameBox.java
@@ -0,0 +1,26 @@
+package org.example;
+
+import org.example.client.BaseBallGameClient;
+import org.example.client.GameClient;
+import org.example.client.RandomNumberGenerator;
+import org.example.client.RandomNumberGeneratorImpl;
+import org.example.request.ClientRequest;
+import org.example.request.CommandLineRequest;
+
+public class BaseBallGameBox {
+
+    private final GameClient gameClient;
+    private final RandomNumberGenerator randomNumberGenerator;
+    private final ClientRequest clientRequest;
+
+    public BaseBallGameBox() {
+        this.randomNumberGenerator = new RandomNumberGeneratorImpl();
+        this.clientRequest = new CommandLineRequest();
+        this.gameClient = new BaseBallGameClient(randomNumberGenerator, clientRequest);
+    }
+
+    public GameClient getGameClient() {
+        return gameClient;
+    }
+
+}
diff --git a/src/main/java/org/example/Main.java b/src/main/java/org/example/Main.java
new file mode 100644
index 0000000..8759fb7
--- /dev/null
+++ b/src/main/java/org/example/Main.java
@@ -0,0 +1,13 @@
+package org.example;
+
+import org.example.controller.BaseBallGameController;
+import org.example.controller.GameController;
+
+public class Main {
+
+    public static void main(String[] args) {
+        GameController gameController = new BaseBallGameController(new BaseBallGameBox());
+        gameController.run();
+    }
+
+}
diff --git a/src/main/java/org/example/client/BallStrikeCount.java b/src/main/java/org/example/client/BallStrikeCount.java
new file mode 100644
index 0000000..869f305
--- /dev/null
+++ b/src/main/java/org/example/client/BallStrikeCount.java
@@ -0,0 +1,28 @@
+package org.example.client;
+
+import org.example.message.GameMessage;
+
+public record BallStrikeCount(
+    int strikeCount,
+    int ballCount
+) {
+
+    public void showBallStrikeCount() {
+        if (ballCount == 0 && strikeCount > 0) {
+            System.out.println(strikeCount + GameMessage.STRIKE);
+        }
+        if (strikeCount == 3) {
+            System.out.println(GameMessage.THREE_STRIKE);
+        }
+        if (ballCount == 0 && strikeCount == 0) {
+            System.out.println(GameMessage.NO_CORRECT_NUM);
+        }
+        if (ballCount > 0 && strikeCount == 0) {
+            System.out.println(ballCount + GameMessage.BALL);
+        }
+        if (ballCount > 0 && strikeCount > 0) {
+            System.out.println(ballCount + GameMessage.BALL + " " + strikeCount + GameMessage.STRIKE);
+        }
+    }
+
+}
diff --git a/src/main/java/org/example/client/BaseBallCounter.java b/src/main/java/org/example/client/BaseBallCounter.java
new file mode 100644
index 0000000..cb4f5a1
--- /dev/null
+++ b/src/main/java/org/example/client/BaseBallCounter.java
@@ -0,0 +1,25 @@
+package org.example.client;
+
+import java.util.List;
+
+public class BaseBallCounter {
+
+    public BallStrikeCount checkCount(List<Integer> gameControlNumber, List<Integer> clientNumber) {
+        int strikeCount = 0;
+        int ballCount = 0;
+
+        for (int i = 0; i < 3; i++) {
+            if (gameControlNumber.get(i).equals(clientNumber.get(i))) {
+                strikeCount++;
+                continue;
+            }
+
+            if (gameControlNumber.contains(clientNumber.get(i))) {
+                ballCount++;
+            }
+        }
+
+        return new BallStrikeCount(strikeCount, ballCount);
+    }
+
+}
diff --git a/src/main/java/org/example/client/BaseBallGameClient.java b/src/main/java/org/example/client/BaseBallGameClient.java
new file mode 100644
index 0000000..74df24a
--- /dev/null
+++ b/src/main/java/org/example/client/BaseBallGameClient.java
@@ -0,0 +1,66 @@
+package org.example.client;
+
+import java.util.List;
+import org.example.message.GameMessage;
+import org.example.request.ClientRequest;
+
+public class BaseBallGameClient implements GameClient {
+
+    private final RandomNumberGenerator randomNumberGenerator;
+    private List<Integer> randomNumbers;
+    private final ClientRequest clientRequest;
+    private final BaseBallCounter baseBallCounter = new BaseBallCounter();
+
+    public BaseBallGameClient(
+        RandomNumberGenerator randomNumberGenerator,
+        ClientRequest clientRequest
+    ) {
+        this.randomNumberGenerator = randomNumberGenerator;
+        this.clientRequest = clientRequest;
+    }
+
+    @Override
+    public int setup() {
+        System.out.println(GameMessage.GAME_START);
+        int gameControlNumber = clientRequest.getNumber();
+        BaseBallValidator.gameStartEndNumberValidator(gameControlNumber);
+        return gameControlNumber;
+    }
+
+    @Override
+    public void play() {
+        getRandomNum();
+        playWithNumber();
+    }
+
+    private void playWithNumber() {
+        System.out.println(GameMessage.CHOOSE_NUMBER);
+        int clientNumber = clientRequest.getNumber();
+        BaseBallValidator.validateClientNumber(clientNumber);
+        List<Integer> userInputList = convertingUserNumberToList(clientNumber);
+        BallStrikeCount ballStrikeCount = baseBallCounter.checkCount(randomNumbers, userInputList);
+        ballStrikeCount.showBallStrikeCount();
+        if (ballStrikeCount.strikeCount() != 3) {
+            playWithNumber();
+        }
+    }
+
+    private void getRandomNum() {
+        System.out.println(GameMessage.COMPUTER_CHOOSE_NUMBER);
+        randomNumbers = randomNumberGenerator.getRandomNumbers();
+    }
+
+    private List<Integer> convertingUserNumberToList(int clientNumber) {
+        return List.of(
+            clientNumber / 100,
+            (clientNumber / 10) % 10,
+            clientNumber % 10
+        );
+    }
+
+    @Override
+    public void stop() {
+        System.out.println(GameMessage.GAME_END);
+    }
+
+}
diff --git a/src/main/java/org/example/client/BaseBallValidator.java b/src/main/java/org/example/client/BaseBallValidator.java
new file mode 100644
index 0000000..b5fd90c
--- /dev/null
+++ b/src/main/java/org/example/client/BaseBallValidator.java
@@ -0,0 +1,36 @@
+package org.example.client;
+
+import java.util.Arrays;
+import org.example.exception.BaseBallException;
+import org.example.message.BaseBallErrorMessage;
+
+public class BaseBallValidator {
+
+    private static final int START_NUM = 1;
+    private static final int END_NUM = 9;
+
+    private BaseBallValidator(){}
+
+    public static void gameStartEndNumberValidator(int number){
+        if(number != START_NUM && number != END_NUM){
+            throw new BaseBallException(BaseBallErrorMessage.INVALID_START_OR_END_NUMBER);
+        }
+    }
+
+    public static void validateClientNumber(int clientNumber) {
+        String stringClientNumber = String.valueOf(clientNumber);
+
+        if(stringClientNumber.length() != 3) {
+            throw new BaseBallException(BaseBallErrorMessage.INVALID_USER_NUMBER_GUESS);
+        }
+
+        long distinctCount = Arrays.stream(stringClientNumber.split(""))
+            .distinct()
+            .count();
+
+        if(distinctCount !=3 ){
+            throw new BaseBallException(BaseBallErrorMessage.INVALID_USER_NUMBER_GUESS);
+        }
+    }
+
+}
diff --git a/src/main/java/org/example/client/GameClient.java b/src/main/java/org/example/client/GameClient.java
new file mode 100644
index 0000000..5a5b938
--- /dev/null
+++ b/src/main/java/org/example/client/GameClient.java
@@ -0,0 +1,9 @@
+package org.example.client;
+
+public interface GameClient {
+
+    int setup();
+    void play();
+    void stop();
+
+}
diff --git a/src/main/java/org/example/client/RandomNumberGenerator.java b/src/main/java/org/example/client/RandomNumberGenerator.java
new file mode 100644
index 0000000..d1da53b
--- /dev/null
+++ b/src/main/java/org/example/client/RandomNumberGenerator.java
@@ -0,0 +1,7 @@
+package org.example.client;
+
+import java.util.List;
+
+public interface RandomNumberGenerator {
+    List<Integer> getRandomNumbers();
+}
diff --git a/src/main/java/org/example/client/RandomNumberGeneratorImpl.java b/src/main/java/org/example/client/RandomNumberGeneratorImpl.java
new file mode 100644
index 0000000..5c979af
--- /dev/null
+++ b/src/main/java/org/example/client/RandomNumberGeneratorImpl.java
@@ -0,0 +1,25 @@
+package org.example.client;
+
+import java.util.HashSet;
+import java.util.List;
+import java.util.Random;
+import java.util.Set;
+
+public class RandomNumberGeneratorImpl implements RandomNumberGenerator {
+
+    private static final Random random = new Random();
+
+    @Override
+    public List<Integer> getRandomNumbers() {
+        Set<Integer> baseBallNumbers = new HashSet<>();
+        while(baseBallNumbers.size() < 3) {
+            int randomNum = random.nextInt(9) + 1;
+            baseBallNumbers.add(randomNum);
+        }
+
+        return baseBallNumbers
+            .stream()
+            .toList();
+    }
+
+}
diff --git a/src/main/java/org/example/controller/BaseBallGameController.java b/src/main/java/org/example/controller/BaseBallGameController.java
new file mode 100644
index 0000000..a499d44
--- /dev/null
+++ b/src/main/java/org/example/controller/BaseBallGameController.java
@@ -0,0 +1,42 @@
+package org.example.controller;
+
+import org.example.BaseBallGameBox;
+import org.example.client.GameClient;
+import org.example.exception.BaseBallException;
+
+public class BaseBallGameController implements GameController {
+
+    private final BaseBallGameBox gameBox;
+
+    public BaseBallGameController(BaseBallGameBox gameBox) {
+        this.gameBox = gameBox;
+    }
+
+    @Override
+    public void run() {
+        GameClient gameClient = gameBox.getGameClient();
+        int setupNumber;
+        try {
+            setupNumber = gameClient.setup();
+        } catch (BaseBallException e) {
+            System.out.println(e.getMessage());
+            run();
+            return;
+        }
+        if (setupNumber == 1) {
+            startPlay(gameClient);
+        }
+        gameClient.stop();
+    }
+
+    private void startPlay(GameClient gameClient) {
+        try {
+            gameClient.play();
+            run();
+        } catch (BaseBallException e){
+            System.out.println(e.getMessage());
+            startPlay(gameClient);
+        }
+    }
+
+}
diff --git a/src/main/java/org/example/controller/GameController.java b/src/main/java/org/example/controller/GameController.java
new file mode 100644
index 0000000..b75c48a
--- /dev/null
+++ b/src/main/java/org/example/controller/GameController.java
@@ -0,0 +1,7 @@
+package org.example.controller;
+
+public interface GameController {
+
+    void run();
+
+}
diff --git a/src/main/java/org/example/exception/BaseBallException.java b/src/main/java/org/example/exception/BaseBallException.java
new file mode 100644
index 0000000..a8b1bb8
--- /dev/null
+++ b/src/main/java/org/example/exception/BaseBallException.java
@@ -0,0 +1,9 @@
+package org.example.exception;
+
+public class BaseBallException extends RuntimeException {
+
+    public BaseBallException(String message){
+        super(message);
+    }
+
+}
diff --git a/src/main/java/org/example/message/BaseBallErrorMessage.java b/src/main/java/org/example/message/BaseBallErrorMessage.java
new file mode 100644
index 0000000..2ae0bc8
--- /dev/null
+++ b/src/main/java/org/example/message/BaseBallErrorMessage.java
@@ -0,0 +1,11 @@
+package org.example.message;
+
+public class BaseBallErrorMessage {
+
+    private BaseBallErrorMessage(){}
+
+    public static final String INVALID_USER_NUMBER_GUESS = "예측하는 숫자는 서로 다른 3자리의 정수로 입력해주세요";
+    public static final String NON_NUMBER_INPUT_ERROR = "숫자를 정확히 입력해주세요";
+    public static final String INVALID_START_OR_END_NUMBER = "유효하지 않은 시작 혹은 종료 숫자 입니다. 1 또는 9를 정확히 입력해주세요";
+
+}
diff --git a/src/main/java/org/example/message/GameMessage.java b/src/main/java/org/example/message/GameMessage.java
new file mode 100644
index 0000000..6708300
--- /dev/null
+++ b/src/main/java/org/example/message/GameMessage.java
@@ -0,0 +1,16 @@
+package org.example.message;
+
+public class GameMessage {
+
+    private GameMessage(){}
+
+    public static final String GAME_START = "게임을 새로 시작하려면 1, 종료하려면 9를 입력하세요.";
+    public static final String COMPUTER_CHOOSE_NUMBER = "컴퓨터가 숫자를 뽑았습니다.";
+    public static final String CHOOSE_NUMBER = "숫자를 입력해주세요 : ";
+    public static final String THREE_STRIKE = "3개의 숫자를 모두 맞히셨습니다.";
+    public static final String GAME_END = "-------게임 종료-------";
+    public static final String NO_CORRECT_NUM = "맞추신 숫자가 없습니다.";
+    public static final String BALL = "볼";
+    public static final String STRIKE = "스트라이크";
+
+}
diff --git a/src/main/java/org/example/request/ClientRequest.java b/src/main/java/org/example/request/ClientRequest.java
new file mode 100644
index 0000000..5e1de2b
--- /dev/null
+++ b/src/main/java/org/example/request/ClientRequest.java
@@ -0,0 +1,8 @@
+package org.example.request;
+
+public interface ClientRequest {
+
+    String getWrite();
+    int getNumber();
+
+}
diff --git a/src/main/java/org/example/request/CommandLineRequest.java b/src/main/java/org/example/request/CommandLineRequest.java
new file mode 100644
index 0000000..9ec6d0f
--- /dev/null
+++ b/src/main/java/org/example/request/CommandLineRequest.java
@@ -0,0 +1,25 @@
+package org.example.request;
+
+import java.util.Scanner;
+import org.example.exception.BaseBallException;
+import org.example.message.BaseBallErrorMessage;
+
+public class CommandLineRequest implements ClientRequest {
+
+    private final Scanner scanner = new Scanner(System.in);
+
+    @Override
+    public String getWrite(){
+        return scanner.nextLine();
+    }
+
+    @Override
+    public int getNumber() {
+        try {
+            return Integer.parseInt(scanner.nextLine());
+        } catch (RuntimeException e){
+            throw new BaseBallException(BaseBallErrorMessage.NON_NUMBER_INPUT_ERROR);
+        }
+    }
+
+}
diff --git a/src/test/java/org/example/client/BallStrikeCountTest.java b/src/test/java/org/example/client/BallStrikeCountTest.java
new file mode 100644
index 0000000..d211c1b
--- /dev/null
+++ b/src/test/java/org/example/client/BallStrikeCountTest.java
@@ -0,0 +1,100 @@
+package org.example.client;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.io.ByteArrayOutputStream;
+import java.io.PrintStream;
+import java.util.Random;
+import org.example.message.GameMessage;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+class BallStrikeCountTest {
+
+    private static final int ZERO_COUNT = 0;
+
+    private final ByteArrayOutputStream outputStreamCaptor = new ByteArrayOutputStream();
+
+    @BeforeEach
+    public void setUp() {
+        System.setOut(new PrintStream(outputStreamCaptor));
+    }
+
+    @Test
+    @DisplayName("스트라이크만 있을 경우 스트라이크 정보만 출력한다.")
+    void printStrikeInfo() {
+        //given
+        int strikeCount = new Random().nextInt(2) + 1;
+        BallStrikeCount ballStrikeCount = new BallStrikeCount(strikeCount, ZERO_COUNT);
+        String expectedResponse = strikeCount + GameMessage.STRIKE;
+
+        //when, then
+        ballStrikeCount.showBallStrikeCount();
+        String actualOutput = outputStreamCaptor.toString().trim();
+
+        assertThat(actualOutput).isEqualTo(expectedResponse);
+    }
+
+    @Test
+    @DisplayName("전부 스트라이크인 경우 정답을 맞췄다는 메시지를 전달한다.")
+    void printCorrectAllNumberInfo() {
+        //given
+        int strikeCount = 3;
+        BallStrikeCount ballStrikeCount = new BallStrikeCount(strikeCount, ZERO_COUNT);
+        String expectedResponse = strikeCount + GameMessage.STRIKE + "\n" + GameMessage.THREE_STRIKE;
+
+        //when, then
+        ballStrikeCount.showBallStrikeCount();
+        String actualOutput = outputStreamCaptor.toString().trim();
+
+        assertThat(actualOutput).isEqualTo(expectedResponse);
+    }
+
+    @Test
+    @DisplayName("볼만 있을 경우 볼 정보만 출력한다.")
+    void printBallInfo() {
+        //given
+        int ballCount = new Random().nextInt(3) + 1;
+        BallStrikeCount ballStrikeCount = new BallStrikeCount(ZERO_COUNT, ballCount);
+        String expectedResponse = ballCount + GameMessage.BALL;
+
+        //when, then
+        ballStrikeCount.showBallStrikeCount();
+        String actualOutput = outputStreamCaptor.toString().trim();
+
+        assertThat(actualOutput).isEqualTo(expectedResponse);
+    }
+
+    @Test
+    @DisplayName("스트라이크도 볼도 없을 경우에는 맞추지 못했다는 메시지를 전달한다")
+    void printNoCorrectAnswerInfo() {
+        //given
+        BallStrikeCount ballStrikeCount = new BallStrikeCount(ZERO_COUNT, ZERO_COUNT);
+        String expectedResponse = GameMessage.NO_CORRECT_NUM;
+
+        //when, then
+        ballStrikeCount.showBallStrikeCount();
+        String actualOutput = outputStreamCaptor.toString().trim();
+
+        assertThat(actualOutput).isEqualTo(expectedResponse);
+    }
+
+    @Test
+    @DisplayName("스트라이크와 볼 모두 있는 경우 맞춘 숫자만큼 출력한다.")
+    void printStrikeAndBallInfo() {
+        //given
+        int strikeCount = new Random().nextInt(2) + 1;
+        int ballCount = 3 - strikeCount;
+
+        BallStrikeCount ballStrikeCount = new BallStrikeCount(strikeCount, ballCount);
+        String expectedResponse = ballCount + GameMessage.BALL + " " + strikeCount + GameMessage.STRIKE;
+
+        //when, then
+        ballStrikeCount.showBallStrikeCount();
+        String actualOutput = outputStreamCaptor.toString().trim();
+
+        assertThat(actualOutput).isEqualTo(expectedResponse);
+    }
+
+}
diff --git a/src/test/java/org/example/client/BaseBallCounterTest.java b/src/test/java/org/example/client/BaseBallCounterTest.java
new file mode 100644
index 0000000..46a97da
--- /dev/null
+++ b/src/test/java/org/example/client/BaseBallCounterTest.java
@@ -0,0 +1,134 @@
+package org.example.client;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Random;
+import java.util.Set;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+class BaseBallCounterTest {
+
+    private static final Random random = new Random();
+
+    @Test
+    @DisplayName("일치하는 숫자가 하나도 없는 경우 0 ball 0 strike가 담긴 BallStrikeCount를 반환한다.")
+    void returnBallStrikeWithZeroStrikeZeroBall() {
+        //given
+        BaseBallCounter baseBallCounter = new BaseBallCounter();
+        RandomNumberGenerator randomNumberGenerator = new RandomNumberGeneratorImpl();
+        List<Integer> computerNumbers = randomNumberGenerator.getRandomNumbers();
+        List<Integer> personInputList = getUserInput(computerNumbers, Collections.emptyList());
+
+        //when
+        BallStrikeCount ballStrikeCount = baseBallCounter.checkCount(computerNumbers,
+            personInputList);
+
+        //then
+        assertThat(ballStrikeCount.ballCount()).isZero();
+        assertThat(ballStrikeCount.strikeCount()).isZero();
+    }
+
+    @Test
+    @DisplayName("ball 만 있을 경우 ball만 담긴 BallStrikeCount를 반환한다.")
+    void returnBallStrikeWithBall() {
+        //given
+        BaseBallCounter baseBallCounter = new BaseBallCounter();
+        RandomNumberGenerator randomNumberGenerator = new RandomNumberGeneratorImpl();
+        List<Integer> computerNumbers = randomNumberGenerator.getRandomNumbers();
+        List<Integer> personInputList = getUserInput(computerNumbers,
+            List.of(computerNumbers.get(0)));
+
+        //when
+        BallStrikeCount ballStrikeCount = baseBallCounter.checkCount(computerNumbers,
+            personInputList);
+
+        //then
+
+        if (personInputList.get(0)
+            .equals(computerNumbers.get(0))) {
+            assertThat(ballStrikeCount.strikeCount()).isOne();
+        } else {
+            assertThat(ballStrikeCount.ballCount()).isOne();
+        }
+    }
+
+    @Test
+    @DisplayName("strike가 두 개인 경우에도 정상적으로 반환한다.")
+    void returnTwoStrikeOneBall() {
+        //given
+        BaseBallCounter baseBallCounter = new BaseBallCounter();
+        RandomNumberGenerator randomNumberGenerator = new RandomNumberGeneratorImpl();
+        List<Integer> computerNumbers = randomNumberGenerator.getRandomNumbers();
+        List<Integer> personInputList = getTwoStrike(computerNumbers);
+
+        //when
+        BallStrikeCount ballStrikeCount = baseBallCounter.checkCount(computerNumbers,
+            personInputList);
+
+        //then
+        assertThat(ballStrikeCount.strikeCount()).isEqualTo(2);
+
+    }
+
+    @Test
+    @DisplayName("strike만 있는 경우 strike만 담긴 BallStrike를 반환한다")
+    void returnAllStrike() {
+        //given
+        BaseBallCounter baseBallCounter = new BaseBallCounter();
+        RandomNumberGenerator randomNumberGenerator = new RandomNumberGeneratorImpl();
+        List<Integer> computerNumbers = randomNumberGenerator.getRandomNumbers();
+        List<Integer> personInputList = List.copyOf(computerNumbers);
+
+        //when
+        BallStrikeCount ballStrikeCount = baseBallCounter.checkCount(computerNumbers,
+            personInputList);
+
+        //then
+        assertThat(ballStrikeCount.strikeCount()).isEqualTo(3);
+    }
+
+    private static List<Integer> getTwoStrike(List<Integer> computerNumbers) {
+        List<Integer> personInputList = new ArrayList<>();
+        personInputList.add(computerNumbers.get(0));
+        personInputList.add(computerNumbers.get(1));
+        Integer lastNumber = computerNumbers.get(2);
+        int lastNum = random.nextInt(9) + 1;
+        while (lastNum == lastNumber) {
+            lastNum = random.nextInt(9) + 1;
+        }
+        personInputList.add(lastNum);
+        return personInputList;
+    }
+
+
+    private static List<Integer> getUserInput(
+        List<Integer> randomNumbers,
+        List<Integer> sameNumbers
+    ) {
+        Set<Integer> personInput = new HashSet<>();
+        if (!sameNumbers.isEmpty()) {
+            personInput.addAll(sameNumbers);
+        }
+        Random random = new Random();
+        while (personInput.size() < 3) {
+            int randomNumber = random.nextInt(9) + 1;
+            if (randomNumbers.contains(randomNumber)) {
+                continue;
+            }
+            personInput.add(randomNumber);
+        }
+
+        return personInput.stream()
+            .toList();
+    }
+
+    private int getRandomBaseBallIndex() {
+        return random.nextInt(3);
+    }
+
+}
diff --git a/src/test/java/org/example/client/BaseBallGameClientTest.java b/src/test/java/org/example/client/BaseBallGameClientTest.java
new file mode 100644
index 0000000..59b00dc
--- /dev/null
+++ b/src/test/java/org/example/client/BaseBallGameClientTest.java
@@ -0,0 +1,53 @@
+package org.example.client;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.io.PrintStream;
+import org.example.message.GameMessage;
+import org.example.request.CommandLineRequest;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+class BaseBallGameClientTest {
+
+    private final InputStream reset = System.in;
+    private final PrintStream originalOut = System.out;
+    private final ByteArrayOutputStream outputStreamCaptor = new ByteArrayOutputStream();
+    private final BaseBallGameClient client = new BaseBallGameClient(
+        new RandomNumberGeneratorImpl(),
+        new CommandLineRequest()
+    );
+    private ByteArrayInputStream testIn;
+
+    @BeforeEach
+    public void setUp() {
+        System.setOut(new PrintStream(outputStreamCaptor));
+    }
+
+    @AfterEach
+    public void tearDown() {
+        System.setIn(reset);
+        System.setOut(originalOut);
+    }
+
+    @Test
+    @DisplayName("정상적으로 야구 게임 종료 메시지를 전달한다.")
+    void closeSuccess() {
+        //given
+        client.stop();
+
+        //then
+        String actualOutput = outputStreamCaptor.toString().trim();
+        assertThat(actualOutput).isEqualTo(GameMessage.GAME_END);
+    }
+
+    private void provideInput(String data) {
+        testIn = new ByteArrayInputStream(data.getBytes());
+        System.setIn(testIn);
+    }
+}
diff --git a/src/test/java/org/example/client/BaseBallValidatorTest.java b/src/test/java/org/example/client/BaseBallValidatorTest.java
new file mode 100644
index 0000000..ef49c97
--- /dev/null
+++ b/src/test/java/org/example/client/BaseBallValidatorTest.java
@@ -0,0 +1,59 @@
+package org.example.client;
+
+import java.util.Random;
+import org.assertj.core.api.Assertions;
+import org.example.exception.BaseBallException;
+import org.example.message.BaseBallErrorMessage;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.ValueSource;
+
+class BaseBallValidatorTest {
+
+    private static final Random random = new Random();
+
+    @Test
+    @DisplayName("게임 시작 번호로 1 혹은 9의 숫자가 들어오면 예외를 발생시키지 않는다.")
+    void validateStartNumberSuccessWithNumberOneOrNine() {
+        //given
+        int one = 1;
+        int nine = 9;
+
+        //when, then
+        Assertions.assertThatCode(() ->BaseBallValidator.gameStartEndNumberValidator(one))
+            .doesNotThrowAnyException();
+        Assertions.assertThatCode(() ->BaseBallValidator.gameStartEndNumberValidator(nine))
+            .doesNotThrowAnyException();    }
+
+    @Test
+    @DisplayName("게임 시작 번호로 1 혹은 9의 이외의 숫자가 들어오면 예외가 발생한다.")
+    void validateStartNumberFailWithoutNumberOneOrNine() {
+        //given
+        int numberNotOneOrNine = getRandomNumberNotOneOrNine();
+
+        //when, then
+        Assertions.assertThatThrownBy(() -> BaseBallValidator.gameStartEndNumberValidator(numberNotOneOrNine))
+            .isInstanceOf(BaseBallException.class)
+            .hasMessage(BaseBallErrorMessage.INVALID_START_OR_END_NUMBER);
+    }
+
+    @ParameterizedTest
+    @ValueSource(ints = {0, 2413, 14222222, 222, 122, 155, 5512})
+    @DisplayName("사용자가 입력한 숫자가 서로 다른 세자리 자연수가 아닌 경우 예외가 발생한다.")
+    void validateStartNumberFailWithoutNumberOneOrNine(int userInput) {
+        //given, when, then
+        Assertions.assertThatThrownBy(() -> BaseBallValidator.validateClientNumber(userInput))
+            .isInstanceOf(BaseBallException.class)
+            .hasMessage(BaseBallErrorMessage.INVALID_USER_NUMBER_GUESS);
+    }
+
+    private int getRandomNumberNotOneOrNine() {
+        int number = random.nextInt(1000);
+        while (number == 1 || number == 9) {
+            number = random.nextInt(1000);
+        }
+        return number;
+    }
+
+}
diff --git a/src/test/java/org/example/client/RandomNumberGeneratorImplTest.java b/src/test/java/org/example/client/RandomNumberGeneratorImplTest.java
new file mode 100644
index 0000000..f8ef140
--- /dev/null
+++ b/src/test/java/org/example/client/RandomNumberGeneratorImplTest.java
@@ -0,0 +1,29 @@
+package org.example.client;
+
+import java.util.List;
+import org.assertj.core.api.Assertions;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+class RandomNumberGeneratorImplTest {
+
+    @Test
+    @DisplayName("정상적으로 랜덤한 세 자리 수 숫자를 반환한다.")
+    void generateRandomNumberTest() {
+        //given
+        RandomNumberGenerator generator = new RandomNumberGeneratorImpl();
+
+        //when
+        List<Integer> randomNumbers = generator.getRandomNumbers();
+
+        //then
+        Assertions.assertThat(randomNumbers).hasSize(3);
+        List<Integer> distinctNumber = randomNumbers
+            .stream()
+            .filter(number -> number < 10)
+            .distinct()
+            .toList();
+        Assertions.assertThat(distinctNumber).hasSize(3);
+    }
+
+}
diff --git a/src/test/java/org/example/request/CommandLineRequestTest.java b/src/test/java/org/example/request/CommandLineRequestTest.java
new file mode 100644
index 0000000..2aac89d
--- /dev/null
+++ b/src/test/java/org/example/request/CommandLineRequestTest.java
@@ -0,0 +1,81 @@
+package org.example.request;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.InputStream;
+import java.util.Random;
+import org.example.message.BaseBallErrorMessage;
+import org.junit.jupiter.api.AfterEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+class CommandLineRequestTest {
+
+    private final InputStream reset = System.in;
+    private final ClientRequest request = new CommandLineRequest();
+    private final ByteArrayOutputStream outputStreamCaptor = new ByteArrayOutputStream();
+    private ByteArrayInputStream testIn;
+    private Random random = new Random();
+
+
+    @AfterEach
+    public void tearDown() {
+        System.setIn(reset);
+    }
+
+    @Test
+    @DisplayName("사용자가 작성한 내용을 그대로 반환한다.")
+    void getUsersWrites() {
+        //given
+        String input = "test input";
+        provideInput(input);
+
+        //when
+        String writtenInput = request.getWrite();
+
+        //then
+        assertThat(input).isEqualTo(writtenInput);
+    }
+
+    @Test
+    @DisplayName("숫자 입력 메서드를 이용할 경우 숫자를 입력하면 정상적으로 입력된다.")
+    void getUsersNumberWrites() {
+        //given
+        String input = String.valueOf(random.nextInt(10000));
+        provideInput(input);
+
+        //when
+        int writtenNumberInput = request.getNumber();
+
+        //then
+        assertThat(Integer.valueOf(input)).isEqualTo(writtenNumberInput);
+    }
+
+    @Test
+    @DisplayName("숫자가 아닌 내용을 숫자입력 메서드에 입력할 경우 다시 입력해야 한다.")
+    void getUsersInvalidNumberWrites() {
+        //given
+        String actualOutput = outputStreamCaptor.toString().trim();
+        StringBuilder sb = new StringBuilder();
+        String input = String.valueOf(random.nextInt(10000));
+        String wrongInput = sb.append("abc")
+            .append("\n")
+            .append(input)
+            .toString();
+        provideInput(wrongInput);
+
+        //when
+        int writtenNumberInput = request.getNumber();
+
+        //then
+        assertThat(actualOutput).isEqualTo(BaseBallErrorMessage.NON_NUMBER_INPUT_ERROR);
+        assertThat(Integer.valueOf(input)).isEqualTo(writtenNumberInput);
+    }
+
+    private void provideInput(String data) {
+        testIn = new ByteArrayInputStream(data.getBytes());
+        System.setIn(testIn);
+    }
+}