diff --git a/README.md b/README.md
deleted file mode 100644
index 566c5b5..0000000
--- a/README.md
+++ /dev/null
@@ -1,2 +0,0 @@
-# springboot-study-orm-jpa
-3-weeks ORM 
diff --git a/week1/week1/.gitignore b/demo2/.gitignore
similarity index 100%
rename from week1/week1/.gitignore
rename to demo2/.gitignore
diff --git a/week1/week1/build.gradle b/demo2/build.gradle
similarity index 61%
rename from week1/week1/build.gradle
rename to demo2/build.gradle
index 0f6d786..b51de33 100644
--- a/week1/week1/build.gradle
+++ b/demo2/build.gradle
@@ -1,10 +1,10 @@
 plugins {
-    id 'org.springframework.boot' version '2.5.2'
+    id 'org.springframework.boot' version '2.5.5'
     id 'io.spring.dependency-management' version '1.0.11.RELEASE'
     id 'java'
 }
 
-group = 'com.livenow'
+group = 'com.example'
 version = '0.0.1-SNAPSHOT'
 sourceCompatibility = '11'
 
@@ -20,11 +20,15 @@ repositories {
 
 dependencies {
     implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+    implementation 'org.springframework.boot:spring-boot-starter-security'
     implementation 'org.springframework.boot:spring-boot-starter-web'
+    implementation 'org.junit.jupiter:junit-jupiter:5.7.0'
     compileOnly 'org.projectlombok:lombok'
-    runtimeOnly 'com.h2database:h2'
+    developmentOnly 'org.springframework.boot:spring-boot-devtools'
+    runtimeOnly 'mysql:mysql-connector-java'
     annotationProcessor 'org.projectlombok:lombok'
     testImplementation 'org.springframework.boot:spring-boot-starter-test'
+    testImplementation 'org.springframework.security:spring-security-test'
 }
 
 test {
diff --git a/week1/week1/gradle/wrapper/gradle-wrapper.jar b/demo2/gradle/wrapper/gradle-wrapper.jar
similarity index 100%
rename from week1/week1/gradle/wrapper/gradle-wrapper.jar
rename to demo2/gradle/wrapper/gradle-wrapper.jar
diff --git a/week1/week1/gradle/wrapper/gradle-wrapper.properties b/demo2/gradle/wrapper/gradle-wrapper.properties
similarity index 92%
rename from week1/week1/gradle/wrapper/gradle-wrapper.properties
rename to demo2/gradle/wrapper/gradle-wrapper.properties
index 05679dc..ffed3a2 100644
--- a/week1/week1/gradle/wrapper/gradle-wrapper.properties
+++ b/demo2/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-7.1.1-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.2-bin.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/demo2/gradlew b/demo2/gradlew
new file mode 100644
index 0000000..1b6c787
--- /dev/null
+++ b/demo2/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/week1/week1/gradlew.bat b/demo2/gradlew.bat
similarity index 96%
rename from week1/week1/gradlew.bat
rename to demo2/gradlew.bat
index ac1b06f..107acd3 100644
--- a/week1/week1/gradlew.bat
+++ b/demo2/gradlew.bat
@@ -1,89 +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
+@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/demo2/settings.gradle b/demo2/settings.gradle
new file mode 100644
index 0000000..0365ca8
--- /dev/null
+++ b/demo2/settings.gradle
@@ -0,0 +1 @@
+rootProject.name = 'demo2'
diff --git a/demo2/src/main/java/TddCalculator.java b/demo2/src/main/java/TddCalculator.java
new file mode 100644
index 0000000..5702948
--- /dev/null
+++ b/demo2/src/main/java/TddCalculator.java
@@ -0,0 +1,31 @@
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class TddCalculator {
+    private static final String DEFAULT_DELIMITER = "[,;]";
+
+    public int add(String text) {
+        if (text.isEmpty()) {
+            return 0;
+        }
+        return sum(toInteger(split(text)));
+    }
+
+    private List<Integer> toInteger(List<String> values) {
+        return values.stream()
+                .map(Integer::parseInt)
+                .collect(Collectors.toList());
+    }
+
+    private List<String> split(String text) {
+        return Arrays.stream(text.split(DEFAULT_DELIMITER))
+                .collect(Collectors.toList());
+    }
+
+    private int sum(List<Integer> values) {
+        return values.stream()
+                .mapToInt(Integer::intValue)
+                .sum();
+    }
+}
\ No newline at end of file
diff --git a/demo2/src/main/java/domain/Converter.java b/demo2/src/main/java/domain/Converter.java
new file mode 100644
index 0000000..208cd6e
--- /dev/null
+++ b/demo2/src/main/java/domain/Converter.java
@@ -0,0 +1,22 @@
+package domain;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class Converter {
+
+    private Converter() {
+
+    }
+
+    public int toInteger(String value){
+        return Integer.parseInt(value);
+    }
+
+    public static List<Number> arrayToList(String[] numbers) {
+        return Arrays.stream(numbers)
+                .map(Number::new)
+                .collect(Collectors.toList());
+    }
+}
diff --git a/demo2/src/main/java/domain/CustomDelimiter.java b/demo2/src/main/java/domain/CustomDelimiter.java
new file mode 100644
index 0000000..f2bf16d
--- /dev/null
+++ b/demo2/src/main/java/domain/CustomDelimiter.java
@@ -0,0 +1,8 @@
+package domain;
+
+public class CustomDelimiter extends Delimiter{
+
+    public CustomDelimiter(String custom) {
+        value = custom;
+    };
+}
diff --git a/demo2/src/main/java/domain/Delimiter.java b/demo2/src/main/java/domain/Delimiter.java
new file mode 100644
index 0000000..1d80d8d
--- /dev/null
+++ b/demo2/src/main/java/domain/Delimiter.java
@@ -0,0 +1,14 @@
+package domain;
+
+public class Delimiter{
+
+    protected String value;
+
+    public String[] split(String value) {
+        return value.split(value);
+    }
+
+    public String getValue() {
+        return value;
+    }
+}
diff --git a/demo2/src/main/java/domain/ExistDelimiter.java b/demo2/src/main/java/domain/ExistDelimiter.java
new file mode 100644
index 0000000..b5ae5c8
--- /dev/null
+++ b/demo2/src/main/java/domain/ExistDelimiter.java
@@ -0,0 +1,9 @@
+package domain;
+
+public class ExistDelimiter extends Delimiter{
+
+    public ExistDelimiter(){
+        String EXIST_Delimiter=",|:";
+        value=EXIST_Delimiter;
+    }
+}
diff --git a/demo2/src/main/java/domain/MultipleNumber.java b/demo2/src/main/java/domain/MultipleNumber.java
new file mode 100644
index 0000000..56d54e5
--- /dev/null
+++ b/demo2/src/main/java/domain/MultipleNumber.java
@@ -0,0 +1,23 @@
+package domain;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class MultipleNumber {
+
+    public List<Number> numbers;
+
+    public MultipleNumber(String[] numbers) {
+        this(Converter.arrayToList(numbers));
+    }
+
+    public MultipleNumber(List<Number> numbers) {
+        this.numbers = new ArrayList<>(numbers);
+    }
+
+    public int sum() {
+        return numbers.stream()
+                .mapToInt(Number::getValue)
+                .sum();
+    }
+}
diff --git a/demo2/src/main/java/domain/Number.java b/demo2/src/main/java/domain/Number.java
new file mode 100644
index 0000000..34c4f8d
--- /dev/null
+++ b/demo2/src/main/java/domain/Number.java
@@ -0,0 +1,27 @@
+package domain;
+
+public class Number {
+
+    int value;
+
+    public Number(int value){
+        checkMinus(value);
+        this.value=value;
+    }
+
+    public Number(String value){
+        int iValue=Integer.parseInt(value);
+        checkMinus(iValue);
+        this.value=iValue;
+    }
+
+    public void checkMinus(int value){
+        if (value < 0){
+            throw new RuntimeException("음수 감지");
+        }
+    }
+
+    public int getValue() {
+        return this.value;
+    }
+}
diff --git a/demo2/src/main/java/domain/StringCalculator.java b/demo2/src/main/java/domain/StringCalculator.java
new file mode 100644
index 0000000..b12a2d2
--- /dev/null
+++ b/demo2/src/main/java/domain/StringCalculator.java
@@ -0,0 +1,4 @@
+package domain;
+
+public class StringCalculator {
+}
diff --git a/demo2/src/main/java/service/NewTddCalculator.java b/demo2/src/main/java/service/NewTddCalculator.java
new file mode 100644
index 0000000..b02cf5a
--- /dev/null
+++ b/demo2/src/main/java/service/NewTddCalculator.java
@@ -0,0 +1,51 @@
+package service;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
+public class NewTddCalculator {
+    private static final String DEFAULT_DELIMETER = "[,;]";
+
+    public int add(String input) {
+        if (input.isEmpty()) {
+            return 0;
+        }
+
+        Matcher m = Pattern.compile("//(.)\n(.*)").matcher(input);
+
+        if (m.find()) {
+            String customDelimiter = m.group(1);
+            String[] tokens= m.group(2).split(customDelimiter);
+            return sum(toInt(tokens));
+        }
+        return sum(toInt(split(input)));
+    }
+
+    private int sum(int[] toInt) {
+        int value = 0;
+        for(int numbers : toInt){
+            value += numbers;
+        }
+        return value;
+    }
+
+    private String[] split(String input) {
+        return input.split(DEFAULT_DELIMETER);
+    }
+
+    private int[] toInt(String[] input) {
+        int[] numbers = new int[input.length];
+        for (int i = 0; i < input.length; i++) {
+            numbers[i] = toInts(input[i]);
+        }
+        return numbers;
+    }
+
+    private int toInts(String number) {
+        int number1 = Integer.parseInt(number);
+        if (number1 < 0){
+            throw new RuntimeException();
+        }
+        return number1;
+    }
+
+}
diff --git a/demo2/src/main/resources/application.properties b/demo2/src/main/resources/application.properties
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/demo2/src/main/resources/application.properties
@@ -0,0 +1 @@
+
diff --git a/demo2/src/test/java/TddCalculatorTest.java b/demo2/src/test/java/TddCalculatorTest.java
new file mode 100644
index 0000000..9e65a66
--- /dev/null
+++ b/demo2/src/test/java/TddCalculatorTest.java
@@ -0,0 +1,82 @@
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+@DisplayName("문자열 계산 테스트 with tdd")
+class TddCalculatorTest {
+
+	private TddCalculator tddCalculator;
+
+	@BeforeEach
+	void setUp() {
+		tddCalculator = new TddCalculator();
+	}
+
+	@DisplayName("3을 입력시 3을 반환한다.")
+	@Test
+	void singleNumberWhenValue3() {
+		//given
+		final String number = "3";
+		//when
+		int actual = tddCalculator.add(number);
+		//then
+		assertThat(actual).isEqualTo(3);
+	}
+
+	@DisplayName("5를 입력시 5를 반환한다.")
+	@Test
+	void singleNumberWhenValue5() {
+		//given
+		final String number = "5";
+		//when
+		int actual = tddCalculator.add(number);
+		//then
+		assertThat(actual).isEqualTo(5);
+	}
+
+	@DisplayName("공백을 입력시 0을 반혼한다")
+	@Test
+	void convertToZero() {
+		//given
+		final String number = "";
+		//when
+		final int actual = tddCalculator.add(number);
+		//then
+		assertThat(actual).isEqualTo(0);
+	}
+
+	@DisplayName("쉼표 구분자를 입력시 값을 더한다")
+	@Test
+	void addWhenDefaultSeparator() {
+		//given
+		final String expect = "2,3";
+		//when
+		final int actual = tddCalculator.add(expect);
+		//then
+		assertThat(actual).isEqualTo(5);
+	}
+
+	@DisplayName("콜론 구분자를 입력시 값을 더한다")
+	@Test
+	void addWhenColonSeparator() {
+		//given
+		final String expect = "2;3";
+		//when
+		final int actual = tddCalculator.add(expect);
+		//then
+		assertThat(actual).isEqualTo(5);
+	}
+
+	@DisplayName("여러개의 콜론 구분자를 입력시 값을 더한다")
+	@Test
+	void addWhenColonSeparatorWhenMultiValue() {
+		//given
+		final String expect = "2;3;4";
+		//when
+		final int actual = tddCalculator.add(expect);
+		//then
+		assertThat(actual).isEqualTo(9);
+	}
+}
\ No newline at end of file
diff --git a/demo2/src/test/java/service/NewTddCalculatorTest.java b/demo2/src/test/java/service/NewTddCalculatorTest.java
new file mode 100644
index 0000000..3450cfb
--- /dev/null
+++ b/demo2/src/test/java/service/NewTddCalculatorTest.java
@@ -0,0 +1,90 @@
+package service;
+
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+
+import java.util.regex.Pattern;
+
+import static org.assertj.core.api.Assertions.assertThat;
+
+public class NewTddCalculatorTest {
+
+    public static NewTddCalculator newTddCalculator;
+
+
+    @BeforeEach
+    void setUp() {
+        newTddCalculator = new NewTddCalculator();
+    }
+
+    @Test
+    public void emptyInputTest(){
+        // given
+        String input = "";
+        // when
+        int result = (int) newTddCalculator.add(input);
+        // then
+        assertThat(result).isEqualTo(0);
+    }
+
+    @Test
+    public void singleInputTest(){
+        // given
+        String input = "3";
+        // when
+        int result = newTddCalculator.add(input);
+        // then
+        assertThat(result).isEqualTo(3);
+    }
+
+    @Test
+    public void singleInputTest2(){
+        // given
+        String input = "5";
+        // when
+        int result = newTddCalculator.add(input);
+        // then
+        assertThat(result).isEqualTo(5);
+    }
+
+    @Test
+    public void doubleInputAddByCommaTest(){
+        // given
+        final String input = "1,2";
+        // when
+        final int result = newTddCalculator.add(input);
+        // then
+        assertThat(result).isEqualTo(3);
+    }
+
+    @Test
+    public void customInputAddByCommaTest(){
+        // given
+        final String input = "1;2";
+        // when
+        final int result =newTddCalculator.add(input);
+        // then
+        assertThat(result).isEqualTo(3);
+    }
+
+    @Test
+    public void checkMinusTest(){
+        // given
+        final String input = "1;2;-1";
+        // when
+        final int result =newTddCalculator.add(input);
+        // then
+        assertThat(result).isEqualTo(4);
+    }
+
+    @Test
+    public void customPatternTest(){
+        // given
+        final String input = "//@\n1@2@3";
+        // when
+        final int result =newTddCalculator.add(input);
+        // then
+        assertThat(result).isEqualTo(6);
+    }
+}
+
diff --git a/mystudy b/mystudy
new file mode 160000
index 0000000..6d1f22c
--- /dev/null
+++ b/mystudy
@@ -0,0 +1 @@
+Subproject commit 6d1f22ca7aed3a4a437bc12eb7856af67c1f7ff0
diff --git a/study b/study
new file mode 160000
index 0000000..5cb5841
--- /dev/null
+++ b/study
@@ -0,0 +1 @@
+Subproject commit 5cb5841ce7e84101ea388fe443ec513303212491
diff --git a/week1.key b/week1.key
deleted file mode 100755
index 8469fef..0000000
Binary files a/week1.key and /dev/null differ
diff --git a/week1/week1/gradlew b/week1/week1/gradlew
deleted file mode 100755
index 22d2f57..0000000
--- a/week1/week1/gradlew
+++ /dev/null
@@ -1,184 +0,0 @@
-#!/usr/bin/env sh
-
-#
-# Copyright 2015 the original author or 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 UN*X
-##
-##############################################################################
-
-# Attempt to set APP_HOME
-# Resolve links: $0 may be a link
-PRG="$0"
-# Need this for relative symlinks.
-while [ -h "$PRG" ]; do
-  ls=$(ls -ld "$PRG")
-  link=$(expr "$ls" : '.*-> \(.*\)$')
-  if expr "$link" : '/.*' >/dev/null; then
-    PRG="$link"
-  else
-    PRG=$(dirname "$PRG")"/$link"
-  fi
-done
-SAVED="$(pwd)"
-cd "$(dirname \"$PRG\")/" >/dev/null
-APP_HOME="$(pwd -P)"
-cd "$SAVED" >/dev/null
-
-APP_NAME="Gradle"
-APP_BASE_NAME=$(basename "$0")
-
-# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
-DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
-
-# Use the maximum available, or set MAX_FD != -1 to use that value.
-MAX_FD="maximum"
-
-warn() {
-  echo "$*"
-}
-
-die() {
-  echo
-  echo "$*"
-  echo
-  exit 1
-}
-
-# OS specific support (must be 'true' or 'false').
-cygwin=false
-msys=false
-darwin=false
-nonstop=false
-case "$(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" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ]; then
-  MAX_FD_LIMIT=$(ulimit -H -n)
-  if [ $? -eq 0 ]; then
-    if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ]; then
-      MAX_FD="$MAX_FD_LIMIT"
-    fi
-    ulimit -n $MAX_FD
-    if [ $? -ne 0 ]; then
-      warn "Could not set maximum file descriptor limit: $MAX_FD"
-    fi
-  else
-    warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
-  fi
-fi
-
-# For Darwin, add options to specify how the application appears in the dock
-if $darwin; then
-  GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
-fi
-
-# For Cygwin or MSYS, switch paths to Windows format before running java
-if [ "$cygwin" = "true" -o "$msys" = "true" ]; then
-  APP_HOME=$(cygpath --path --mixed "$APP_HOME")
-  CLASSPATH=$(cygpath --path --mixed "$CLASSPATH")
-
-  JAVACMD=$(cygpath --unix "$JAVACMD")
-
-  # We build the pattern for arguments to be converted via cygpath
-  ROOTDIRSRAW=$(find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null)
-  SEP=""
-  for dir in $ROOTDIRSRAW; do
-    ROOTDIRS="$ROOTDIRS$SEP$dir"
-    SEP="|"
-  done
-  OURCYGPATTERN="(^($ROOTDIRS))"
-  # Add a user-defined pattern to the cygpath arguments
-  if [ "$GRADLE_CYGPATTERN" != "" ]; then
-    OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
-  fi
-  # Now convert the arguments - kludge to limit ourselves to /bin/sh
-  i=0
-  for arg in "$@"; do
-    CHECK=$(echo "$arg" | egrep -c "$OURCYGPATTERN" -)
-    CHECK2=$(echo "$arg" | egrep -c "^-") ### Determine if an option
-
-    if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ]; then ### Added a condition
-      eval $(echo args$i)=$(cygpath --path --ignore --mixed "$arg")
-    else
-      eval $(echo args$i)="\"$arg\""
-    fi
-    i=$(expr $i + 1)
-  done
-  case $i in
-  0) set -- ;;
-  1) set -- "$args0" ;;
-  2) set -- "$args0" "$args1" ;;
-  3) set -- "$args0" "$args1" "$args2" ;;
-  4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-  5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-  6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-  7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-  8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-  9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
-  esac
-fi
-
-# Escape application args
-save() {
-  for i; do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/"; done
-  echo " "
-}
-APP_ARGS=$(save "$@")
-
-# Collect all arguments for the java command, following the shell quoting and substitution rules
-eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
-
-exec "$JAVACMD" "$@"
diff --git a/week1/week1/settings.gradle b/week1/week1/settings.gradle
deleted file mode 100644
index c1ce79e..0000000
--- a/week1/week1/settings.gradle
+++ /dev/null
@@ -1 +0,0 @@
-rootProject.name = 'week1'
diff --git a/week1/week1/src/main/java/com/livenow/week1/Week1Application.java b/week1/week1/src/main/java/com/livenow/week1/Week1Application.java
deleted file mode 100644
index 9519a69..0000000
--- a/week1/week1/src/main/java/com/livenow/week1/Week1Application.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.livenow.week1;
-
-import org.springframework.boot.SpringApplication;
-import org.springframework.boot.autoconfigure.SpringBootApplication;
-
-@SpringBootApplication
-public class Week1Application {
-
-    public static void main(String[] args) {
-        SpringApplication.run(Week1Application.class, args);
-    }
-
-}
diff --git a/week1/week1/src/main/java/com/livenow/week1/controller/MemberController.java b/week1/week1/src/main/java/com/livenow/week1/controller/MemberController.java
deleted file mode 100644
index 522a055..0000000
--- a/week1/week1/src/main/java/com/livenow/week1/controller/MemberController.java
+++ /dev/null
@@ -1,22 +0,0 @@
-package com.livenow.week1.controller;
-
-import com.livenow.week1.service.MemberService;
-import org.springframework.http.HttpStatus;
-import org.springframework.web.bind.annotation.*;
-
-@RestController
-@RequestMapping("/api/v1/members")
-public class MemberController {
-
-    private final MemberService memberService;
-
-    public MemberController(MemberService memberService) {
-        this.memberService = memberService;
-    }
-
-    @PostMapping
-    @ResponseStatus(HttpStatus.OK)
-    public void saveMember(@RequestParam String name, @RequestParam int age) {
-        memberService.save(name, age);
-    }
-}
diff --git a/week1/week1/src/main/java/com/livenow/week1/controller/TeamController.java b/week1/week1/src/main/java/com/livenow/week1/controller/TeamController.java
deleted file mode 100644
index b3b4f63..0000000
--- a/week1/week1/src/main/java/com/livenow/week1/controller/TeamController.java
+++ /dev/null
@@ -1,28 +0,0 @@
-package com.livenow.week1.controller;
-
-import com.livenow.week1.service.TeamService;
-import org.springframework.http.HttpStatus;
-import org.springframework.web.bind.annotation.*;
-
-@RestController
-@RequestMapping("/api/v1/teams")
-public class TeamController {
-
-    private final TeamService teamService;
-
-    public TeamController(TeamService teamService) {
-        this.teamService = teamService;
-    }
-
-    @PostMapping
-    @ResponseStatus(HttpStatus.OK)
-    public void save(@RequestParam String name) {
-        teamService.save(name);
-    }
-
-    @PostMapping("/members")
-    @ResponseStatus(HttpStatus.OK)
-    public void addMember(@RequestParam Long teamId, @RequestParam Long memberId) {
-        teamService.addMember(teamId, memberId);
-    }
-}
diff --git a/week1/week1/src/main/java/com/livenow/week1/domain/Member.java b/week1/week1/src/main/java/com/livenow/week1/domain/Member.java
deleted file mode 100644
index ee41696..0000000
--- a/week1/week1/src/main/java/com/livenow/week1/domain/Member.java
+++ /dev/null
@@ -1,47 +0,0 @@
-package com.livenow.week1.domain;
-
-import lombok.Getter;
-
-import javax.persistence.*;
-
-@Getter
-@Entity
-public class Member {
-
-    @Id
-    @Column(name = "member_id")
-    private Long id;
-
-    @ManyToOne(fetch = FetchType.LAZY, cascade = CascadeType.PERSIST)
-    @JoinColumn(name = "team_id")
-    private Team team;
-
-    private String name;
-    private int age;
-
-    protected Member() {
-    }
-
-    public Member(String name, int age) {
-        this(null, name, age, null);
-    }
-
-    public Member(String name, int age, Team team) {
-        this(null, name, age, team);
-    }
-
-    public Member(Long id, String name, int age) {
-        this(id, name, age, null);
-    }
-
-    public Member(Long id, String name, int age, Team team) {
-        this.id = id;
-        this.name = name;
-        this.age = age;
-        this.team = team;
-    }
-
-    public void changeTeam(Team team) {
-        this.team = team;
-    }
-}
diff --git a/week1/week1/src/main/java/com/livenow/week1/domain/MemberRepository.java b/week1/week1/src/main/java/com/livenow/week1/domain/MemberRepository.java
deleted file mode 100644
index 99af4dc..0000000
--- a/week1/week1/src/main/java/com/livenow/week1/domain/MemberRepository.java
+++ /dev/null
@@ -1,24 +0,0 @@
-package com.livenow.week1.domain;
-
-import org.springframework.stereotype.Repository;
-
-import javax.persistence.EntityManager;
-
-@Repository
-public class MemberRepository {
-
-    private final EntityManager em;
-
-    public MemberRepository(EntityManager em) {
-        this.em = em;
-    }
-
-    public void save(Member member) {
-        em.persist(member);
-    }
-
-    public Member findById(Long id) {
-        return em.find(Member.class, id);
-    }
-}
-
diff --git a/week1/week1/src/main/java/com/livenow/week1/domain/Team.java b/week1/week1/src/main/java/com/livenow/week1/domain/Team.java
deleted file mode 100644
index 3e2b11b..0000000
--- a/week1/week1/src/main/java/com/livenow/week1/domain/Team.java
+++ /dev/null
@@ -1,35 +0,0 @@
-package com.livenow.week1.domain;
-
-import lombok.Getter;
-
-import javax.persistence.Column;
-import javax.persistence.Entity;
-import javax.persistence.Id;
-import javax.persistence.OneToMany;
-import java.util.ArrayList;
-import java.util.List;
-
-@Getter
-@Entity
-public class Team {
-
-    @Id
-    @Column(name = "team_id")
-    private Long id;
-    private String name;
-
-    @OneToMany(mappedBy = "team")
-    private List<Member> members = new ArrayList<>();
-
-    protected Team() {
-    }
-
-    public Team(String name) {
-        this(null, name);
-    }
-
-    public Team(Long id, String name) {
-        this.id = id;
-        this.name = name;
-    }
-}
diff --git a/week1/week1/src/main/java/com/livenow/week1/domain/TeamRepository.java b/week1/week1/src/main/java/com/livenow/week1/domain/TeamRepository.java
deleted file mode 100644
index 474870e..0000000
--- a/week1/week1/src/main/java/com/livenow/week1/domain/TeamRepository.java
+++ /dev/null
@@ -1,23 +0,0 @@
-package com.livenow.week1.domain;
-
-import org.springframework.stereotype.Repository;
-
-import javax.persistence.EntityManager;
-
-@Repository
-public class TeamRepository {
-
-    private final EntityManager em;
-
-    public TeamRepository(EntityManager em) {
-        this.em = em;
-    }
-
-    public void save(Team team) {
-        em.persist(team);
-    }
-
-    public Team findById(Long id) {
-        return em.find(Team.class, id);
-    }
-}
diff --git a/week1/week1/src/main/java/com/livenow/week1/service/MemberService.java b/week1/week1/src/main/java/com/livenow/week1/service/MemberService.java
deleted file mode 100644
index 7582526..0000000
--- a/week1/week1/src/main/java/com/livenow/week1/service/MemberService.java
+++ /dev/null
@@ -1,24 +0,0 @@
-package com.livenow.week1.service;
-
-import com.livenow.week1.domain.Member;
-import com.livenow.week1.domain.MemberRepository;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-
-@Service
-public class MemberService {
-
-    private static Long AGE = 1L;
-
-    private final MemberRepository memberRepository;
-
-    public MemberService(MemberRepository memberRepository) {
-        this.memberRepository = memberRepository;
-    }
-
-    @Transactional
-    public void save(String name, int age) {
-        Member member = new Member(AGE++, name, age);
-        memberRepository.save(member);
-    }
-}
diff --git a/week1/week1/src/main/java/com/livenow/week1/service/TeamService.java b/week1/week1/src/main/java/com/livenow/week1/service/TeamService.java
deleted file mode 100644
index a5acedf..0000000
--- a/week1/week1/src/main/java/com/livenow/week1/service/TeamService.java
+++ /dev/null
@@ -1,37 +0,0 @@
-package com.livenow.week1.service;
-
-import com.livenow.week1.domain.Member;
-import com.livenow.week1.domain.MemberRepository;
-import com.livenow.week1.domain.Team;
-import com.livenow.week1.domain.TeamRepository;
-import org.springframework.stereotype.Service;
-import org.springframework.transaction.annotation.Transactional;
-
-@Service
-public class TeamService {
-
-    private static Long AGE = 1L;
-
-    private final MemberRepository memberRepository;
-    private final TeamRepository teamRepository;
-
-    public TeamService(MemberRepository memberRepository, TeamRepository teamRepository) {
-        this.memberRepository = memberRepository;
-        this.teamRepository = teamRepository;
-    }
-
-    @Transactional
-    public void save(String name) {
-        Team team = new Team(AGE++, name);
-        teamRepository.save(team);
-    }
-
-    @Transactional
-    public void addMember(Long teamId, Long memberId) {
-        Team team = teamRepository.findById(teamId);
-        Member member = memberRepository.findById(memberId);
-        member.changeTeam(team);
-
-        team.getMembers().add(member);
-    }
-}
diff --git a/week1/week1/src/main/resources/application.yml b/week1/week1/src/main/resources/application.yml
deleted file mode 100644
index 9a24886..0000000
--- a/week1/week1/src/main/resources/application.yml
+++ /dev/null
@@ -1,16 +0,0 @@
-spring:
-  datasource:
-    driver-class-name: org.h2.Driver
-    url: jdbc:h2:mem:test
-    username: sa
-    password:
-
-  jpa:
-    hibernate:
-      ddl-auto: create
-      format_sql: true
-    show-sql: true
-
-  h2:
-    console:
-      enabled: true
diff --git a/week1/week1/src/test/java/com/livenow/week1/Week1ApplicationTests.java b/week1/week1/src/test/java/com/livenow/week1/Week1ApplicationTests.java
deleted file mode 100644
index 3e04fc1..0000000
--- a/week1/week1/src/test/java/com/livenow/week1/Week1ApplicationTests.java
+++ /dev/null
@@ -1,13 +0,0 @@
-package com.livenow.week1;
-
-import org.junit.jupiter.api.Test;
-import org.springframework.boot.test.context.SpringBootTest;
-
-@SpringBootTest
-class Week1ApplicationTests {
-
-    @Test
-    void contextLoads() {
-    }
-
-}
diff --git a/week1/week1/src/test/java/com/livenow/week1/domain/MemberRepositoryTest.java b/week1/week1/src/test/java/com/livenow/week1/domain/MemberRepositoryTest.java
deleted file mode 100644
index 5554d24..0000000
--- a/week1/week1/src/test/java/com/livenow/week1/domain/MemberRepositoryTest.java
+++ /dev/null
@@ -1,53 +0,0 @@
-package com.livenow.week1.domain;
-
-import org.assertj.core.api.Assertions;
-import org.junit.jupiter.api.Test;
-import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.boot.test.context.SpringBootTest;
-import org.springframework.transaction.annotation.Transactional;
-
-import javax.persistence.EntityManager;
-
-@SpringBootTest
-@Transactional
-class MemberRepositoryTest {
-
-    @Autowired
-    private MemberRepository memberRepository;
-
-    @Autowired
-    private TeamRepository teamRepository;
-
-    @Autowired
-    private EntityManager em;
-
-    @Test
-    void memberGetTeam() {
-        //given
-        Member member = new Member(1L, "동현이 샛기", 3);
-        //when
-        memberRepository.save(member);
-        Member findMember = memberRepository.findById(1L);
-        //then
-        Assertions.assertThat(member.getId()).isEqualTo(findMember.getId());
-    }
-
-
-    @Test
-    void memberGetTeam2() {
-        //given
-        Member member = new Member(1L, "동현이 샛기", 3);
-        Team team = new Team(1L, "배달의 민족");
-        member.changeTeam(team);
-        //when
-        //teamRepository.save(team);
-        memberRepository.save(member);
-        Member findMember = memberRepository.findById(1L);
-        em.flush();
-        em.clear();
-        Team team2 = teamRepository.findById(1L);
-        //then
-        Assertions.assertThat(findMember.getTeam()).isNotNull();
-        Assertions.assertThat(team2).isNotNull();
-    }
-}
\ No newline at end of file