From dc427f5654e1f5166d9588031b9d35791008f5ff Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EC=A3=BC=ED=99=98?=
 <118493627+LeeJuHwan@users.noreply.github.com>
Date: Sat, 22 Jun 2024 16:12:15 +0900
Subject: [PATCH 01/15] Update README.md

---
 README.md | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index 05a04f9..fd12503 100644
--- a/README.md
+++ b/README.md
@@ -1,16 +1,17 @@
 ## [NEXTSTEP 플레이그라운드의 미션 진행 과정](https://github.com/next-step/nextstep-docs/blob/master/playground/README.md)
 
 ---
-1. 피드백 강의 전까지 미션 진행 
-> 피드백 강의 전까지 혼자 힘으로 미션 진행. 미션을 진행하면서 하나의 작업이 끝날 때 마다 add, commit
-> 예를 들어 다음 숫자 야구 게임의 경우 0, 1, 2단계까지 구현을 완료한 후 push. 개인 레포지토리, 개인 브랜치에서 진행.
+1. 피드백 강의 전까지 미션 진행
+- 피드백 강의 전까지 혼자 힘으로 미션 진행, 미션을 진행하면서 하나의 작업이 끝날 때 마다 add, commit
+    - 예를 들어 다음 숫자 야구 게임의 경우 각 미션 별 `branch`를 로컬 저장소로 `clone` 한 후 미션을 해결 한 뒤 `PR`을 보냅니다.
+    - 코드 수정이 더 이상 일어나지 않을 경우 리뷰어를 설정하고 다음 미션을 진행 합니다.
 
 ![mission baseball](https://raw.githubusercontent.com/next-step/nextstep-docs/master/playground/images/mission_baseball.png)
 
 ---
-2. 피드백 앞 단계까지 미션 구현을 완료한 후 피드백 강의를 학습한다.
+2. 피드백 앞 단계까지 미션 구현을 완료한 후 피드백 강의를 학습합니다.
 
 ---
-3. (임시로 만들어본 규칙입니다) 자신의 브랜치에 구현해둔 코드를 피드백을 참고해 수정해본다. 
-해당 코드를 본 레포지토리의 main으로 합병하는 PR을 요청해 팀원들의 피드백을 받는다.
+3. 자신의 브랜치에 구현해둔 코드를 피드백을 참고해 수정해봅니다.
+- 해당 코드를 본 레포지토리의 main으로 합병하는 PR을 요청해 팀원들의 피드백을 받습니다.
 

From 0e949f59a2d8640d293336a0fc15eae13b4fa73c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EC=A3=BC=ED=99=98?=
 <118493627+LeeJuHwan@users.noreply.github.com>
Date: Sat, 22 Jun 2024 16:13:45 +0900
Subject: [PATCH 02/15] Update README.md

---
 README.md | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/README.md b/README.md
index fd12503..bdd03e9 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,8 @@
 ---
 1. 피드백 강의 전까지 미션 진행
 - 피드백 강의 전까지 혼자 힘으로 미션 진행, 미션을 진행하면서 하나의 작업이 끝날 때 마다 add, commit
-    - 예를 들어 다음 숫자 야구 게임의 경우 각 미션 별 `branch`를 로컬 저장소로 `clone` 한 후 미션을 해결 한 뒤 `PR`을 보냅니다.
+    - `main` 미션 레포지토리를 본인의 로컬 저장소로 `clone` 하여 프로젝트 환경을 구성합니다.
+    - 예를 들어 다음 숫자 야구 게임의 경우 각 미션 별 `branch`를 `pull` 받은 후 미션을 해결 한 뒤 `PR`을 보냅니다.
     - 코드 수정이 더 이상 일어나지 않을 경우 리뷰어를 설정하고 다음 미션을 진행 합니다.
 
 ![mission baseball](https://raw.githubusercontent.com/next-step/nextstep-docs/master/playground/images/mission_baseball.png)
@@ -13,5 +14,5 @@
 
 ---
 3. 자신의 브랜치에 구현해둔 코드를 피드백을 참고해 수정해봅니다.
-- 해당 코드를 본 레포지토리의 main으로 합병하는 PR을 요청해 팀원들의 피드백을 받습니다.
+- 해당 코드를 본 레포지토리의 `main`으로 합병하는 `PR`을 요청해 팀원들의 피드백을 받습니다.
 

From 8be5c6d713e0c1d9b42924e4307a3ac2308e1c96 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EC=A3=BC=ED=99=98?=
 <118493627+LeeJuHwan@users.noreply.github.com>
Date: Thu, 27 Jun 2024 16:01:03 +0900
Subject: [PATCH 03/15] chore: add auto-assign reviewer reuses workflow

---
 .github/workflows/auto-reviewer.yml | 8 ++++++++
 1 file changed, 8 insertions(+)
 create mode 100644 .github/workflows/auto-reviewer.yml

diff --git a/.github/workflows/auto-reviewer.yml b/.github/workflows/auto-reviewer.yml
new file mode 100644
index 0000000..5067827
--- /dev/null
+++ b/.github/workflows/auto-reviewer.yml
@@ -0,0 +1,8 @@
+name: "Auto Assign Reviewer"
+on:
+  pull_request:
+    types: [opened, reopened]
+
+jobs:
+  call-auto-assign:
+    uses: java-playground-hiking/.github/.github/workflows/auto-assign-reviewer.yml@main

From 96eea971aefe7d595220e1bb55785216fb371d86 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EC=A3=BC=ED=99=98?=
 <118493627+LeeJuHwan@users.noreply.github.com>
Date: Thu, 27 Jun 2024 16:03:25 +0900
Subject: [PATCH 04/15] update: modify to refference file path

---
 .github/workflows/auto-reviewer.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/auto-reviewer.yml b/.github/workflows/auto-reviewer.yml
index 5067827..34c30ec 100644
--- a/.github/workflows/auto-reviewer.yml
+++ b/.github/workflows/auto-reviewer.yml
@@ -5,4 +5,4 @@ on:
 
 jobs:
   call-auto-assign:
-    uses: java-playground-hiking/.github/.github/workflows/auto-assign-reviewer.yml@main
+    uses: java-playground-hiking/.github/.github/workflows/auto-reviewer.yml@main

From 862eeb16c80da7ed5773e3d95291b229672396dc Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EC=A3=BC=ED=99=98?=
 <118493627+LeeJuHwan@users.noreply.github.com>
Date: Thu, 27 Jun 2024 16:25:17 +0900
Subject: [PATCH 05/15] update: auto reviewer workflow does not reusing

---
 .github/workflows/auto-reviewer.yml | 18 +++++++++++-------
 1 file changed, 11 insertions(+), 7 deletions(-)

diff --git a/.github/workflows/auto-reviewer.yml b/.github/workflows/auto-reviewer.yml
index 34c30ec..eac4875 100644
--- a/.github/workflows/auto-reviewer.yml
+++ b/.github/workflows/auto-reviewer.yml
@@ -1,8 +1,12 @@
-name: "Auto Assign Reviewer"
-on:
-  pull_request:
-    types: [opened, reopened]
+ name: 'Auto Assign Reviewer'
+ on:
+   pull_request:
+     types: [opened, reopened]
 
-jobs:
-  call-auto-assign:
-    uses: java-playground-hiking/.github/.github/workflows/auto-reviewer.yml@main
+ jobs:
+   add-reviews:
+     runs-on: ubuntu-latest
+     steps:
+       - uses: kentaro-m/auto-assign-action@v2
+         with:
+           configuration-path: .github/config-auto-assign.yml

From 11378371c185b0e36202724bfa55db60afbc56b8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EC=A3=BC=ED=99=98?=
 <118493627+LeeJuHwan@users.noreply.github.com>
Date: Thu, 27 Jun 2024 16:26:11 +0900
Subject: [PATCH 06/15] chore: add auto reviewer configuration file

---
 .github/config-auto-assign.yml | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 .github/config-auto-assign.yml

diff --git a/.github/config-auto-assign.yml b/.github/config-auto-assign.yml
new file mode 100644
index 0000000..827fccd
--- /dev/null
+++ b/.github/config-auto-assign.yml
@@ -0,0 +1,9 @@
+addReviewers: true
+addAssignees: false
+
+reviewers:
+  - ohdeng02
+  - rigyeonghong
+  - JoHyoju04
+
+numberOfReviewers: 1

From 7491571f0f6c7c663380eb100d57044de8cc36a2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EC=A3=BC=ED=99=98?=
 <118493627+LeeJuHwan@users.noreply.github.com>
Date: Thu, 27 Jun 2024 16:28:07 +0900
Subject: [PATCH 07/15] update: specific version

---
 .github/workflows/auto-reviewer.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/auto-reviewer.yml b/.github/workflows/auto-reviewer.yml
index eac4875..2575176 100644
--- a/.github/workflows/auto-reviewer.yml
+++ b/.github/workflows/auto-reviewer.yml
@@ -7,6 +7,6 @@
    add-reviews:
      runs-on: ubuntu-latest
      steps:
-       - uses: kentaro-m/auto-assign-action@v2
+       - uses: kentaro-m/auto-assign-action@v2.0.0
          with:
            configuration-path: .github/config-auto-assign.yml

From 3b42fc5167514c2b524217357fd715de1e0641d6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EC=A3=BC=ED=99=98?=
 <118493627+LeeJuHwan@users.noreply.github.com>
Date: Thu, 27 Jun 2024 17:06:38 +0900
Subject: [PATCH 08/15] update: change git action workflow

---
 .github/workflows/auto-reviewer.yml | 25 ++++++++++++++-----------
 1 file changed, 14 insertions(+), 11 deletions(-)

diff --git a/.github/workflows/auto-reviewer.yml b/.github/workflows/auto-reviewer.yml
index 2575176..f41f552 100644
--- a/.github/workflows/auto-reviewer.yml
+++ b/.github/workflows/auto-reviewer.yml
@@ -1,12 +1,15 @@
- name: 'Auto Assign Reviewer'
- on:
-   pull_request:
-     types: [opened, reopened]
+name: Review Assign
 
- jobs:
-   add-reviews:
-     runs-on: ubuntu-latest
-     steps:
-       - uses: kentaro-m/auto-assign-action@v2.0.0
-         with:
-           configuration-path: .github/config-auto-assign.yml
+on:
+  pull_request:
+    types: [opened, reopened]
+
+jobs:
+  assign:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: hkusu/review-assign-action@v1.4.0
+        with:
+          assignees: ${{ github.actor }}
+          reviewers: ohdeng02, rigyeonghong, JoHyoju04, LeeJuHwan
+          ready-comment: 'Ready for review :ok:'

From 4a3da5944d324d5cb7657a0f44f9063ef5872c28 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EC=A3=BC=ED=99=98?=
 <118493627+LeeJuHwan@users.noreply.github.com>
Date: Thu, 27 Jun 2024 17:23:16 +0900
Subject: [PATCH 09/15] Delete .github/config-auto-assign.yml

---
 .github/config-auto-assign.yml | 9 ---------
 1 file changed, 9 deletions(-)
 delete mode 100644 .github/config-auto-assign.yml

diff --git a/.github/config-auto-assign.yml b/.github/config-auto-assign.yml
deleted file mode 100644
index 827fccd..0000000
--- a/.github/config-auto-assign.yml
+++ /dev/null
@@ -1,9 +0,0 @@
-addReviewers: true
-addAssignees: false
-
-reviewers:
-  - ohdeng02
-  - rigyeonghong
-  - JoHyoju04
-
-numberOfReviewers: 1

From bd390ece8014b32bc296362966bdbc1f71e6e8c8 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EC=A3=BC=ED=99=98?=
 <118493627+LeeJuHwan@users.noreply.github.com>
Date: Thu, 27 Jun 2024 17:24:19 +0900
Subject: [PATCH 10/15] update: display result

---
 .github/workflows/auto-reviewer.yml | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/auto-reviewer.yml b/.github/workflows/auto-reviewer.yml
index f41f552..e44c32b 100644
--- a/.github/workflows/auto-reviewer.yml
+++ b/.github/workflows/auto-reviewer.yml
@@ -11,5 +11,11 @@ jobs:
       - uses: hkusu/review-assign-action@v1.4.0
         with:
           assignees: ${{ github.actor }}
-          reviewers: ohdeng02, rigyeonghong, JoHyoju04, LeeJuHwan
-          ready-comment: 'Ready for review :ok:'
+          reviewers: |
+            ohdeng02
+            rigyeonghong
+            JoHyoju04
+            LeeJuHwan
+      - name: Show result
+        if: always()
+        run: echo '${{ steps.assign.outputs.result }}' # success or failure

From 7965892e39faa73d673e3293d463964de3e9dec6 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EC=A3=BC=ED=99=98?=
 <118493627+LeeJuHwan@users.noreply.github.com>
Date: Thu, 27 Jun 2024 17:46:23 +0900
Subject: [PATCH 11/15] update: ignore reviewers

---
 .github/workflows/auto-reviewer.yml | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/.github/workflows/auto-reviewer.yml b/.github/workflows/auto-reviewer.yml
index e44c32b..4c9ee3b 100644
--- a/.github/workflows/auto-reviewer.yml
+++ b/.github/workflows/auto-reviewer.yml
@@ -11,11 +11,7 @@ jobs:
       - uses: hkusu/review-assign-action@v1.4.0
         with:
           assignees: ${{ github.actor }}
-          reviewers: |
-            ohdeng02
-            rigyeonghong
-            JoHyoju04
-            LeeJuHwan
+          reviewers: ${{ vars.REVIEWERS }}
       - name: Show result
         if: always()
         run: echo '${{ steps.assign.outputs.result }}' # success or failure

From 3957447db4938e51e6c4ee349dde56399bf01bb2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EC=A3=BC=ED=99=98?=
 <118493627+LeeJuHwan@users.noreply.github.com>
Date: Thu, 27 Jun 2024 18:39:53 +0900
Subject: [PATCH 12/15] update: modify pr target

---
 .github/workflows/auto-reviewer.yml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/.github/workflows/auto-reviewer.yml b/.github/workflows/auto-reviewer.yml
index 4c9ee3b..3fc8700 100644
--- a/.github/workflows/auto-reviewer.yml
+++ b/.github/workflows/auto-reviewer.yml
@@ -2,7 +2,7 @@ name: Review Assign
 
 on:
   pull_request:
-    types: [opened, reopened]
+    types: [opened, ready_for_review]
 
 jobs:
   assign:

From c8b21af1ae1599fa804a261ec1df5e44edad9d3d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=EC=9D=B4=EC=A3=BC=ED=99=98?=
 <118493627+LeeJuHwan@users.noreply.github.com>
Date: Thu, 27 Jun 2024 18:42:16 +0900
Subject: [PATCH 13/15] update: remove display results

---
 .github/workflows/auto-reviewer.yml | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/.github/workflows/auto-reviewer.yml b/.github/workflows/auto-reviewer.yml
index 3fc8700..5990c70 100644
--- a/.github/workflows/auto-reviewer.yml
+++ b/.github/workflows/auto-reviewer.yml
@@ -8,10 +8,8 @@ jobs:
   assign:
     runs-on: ubuntu-latest
     steps:
-      - uses: hkusu/review-assign-action@v1.4.0
+      - uses: hkusu/review-assign-action@v1
         with:
           assignees: ${{ github.actor }}
           reviewers: ${{ vars.REVIEWERS }}
-      - name: Show result
-        if: always()
-        run: echo '${{ steps.assign.outputs.result }}' # success or failure
+          max-num-of-reviewers: 1

From 9eb95246453f9e52a0a6244ea0b695b89100e79c Mon Sep 17 00:00:00 2001
From: rigyeonghong <zxcvbee@naver.com>
Date: Sat, 20 Jul 2024 09:36:31 +0900
Subject: [PATCH 14/15] String Test

---
 src/test/java/study/SetTest.java    |  2 ++
 src/test/java/study/StringTest.java | 35 +++++++++++++++++++++++++++++
 2 files changed, 37 insertions(+)
 create mode 100644 src/test/java/study/SetTest.java

diff --git a/src/test/java/study/SetTest.java b/src/test/java/study/SetTest.java
new file mode 100644
index 0000000..81b24a5
--- /dev/null
+++ b/src/test/java/study/SetTest.java
@@ -0,0 +1,2 @@
+package study;public class SetTest {
+}
diff --git a/src/test/java/study/StringTest.java b/src/test/java/study/StringTest.java
index 43e47d9..3ea08d5 100644
--- a/src/test/java/study/StringTest.java
+++ b/src/test/java/study/StringTest.java
@@ -1,8 +1,11 @@
 package study;
 
+import org.junit.jupiter.api.DisplayName;
 import org.junit.jupiter.api.Test;
 
 import static org.assertj.core.api.Assertions.assertThat;
+import static org.assertj.core.api.AssertionsForClassTypes.assertThatThrownBy;
+import static org.junit.jupiter.api.Assertions.assertThrows;
 
 public class StringTest {
     @Test
@@ -10,4 +13,36 @@ void replace() {
         String actual = "abc".replace("b", "d");
         assertThat(actual).isEqualTo("adc");
     }
+
+    @Test
+    @DisplayName("\"1,2\"을 ,로 split 했을 때 1과 2로 잘 분리되는지 검사")
+    void split1() {
+        String[] actual = "1,2".split(",");
+        assertThat(actual).contains("1","2");
+    }
+
+    @Test
+    @DisplayName("\"1\"을 ,로 split 했을 때 1만을 포함하는 배열이 반환되는지 검사")
+    void split2() {
+        String[] actual = "1".split(",");
+        assertThat(actual).containsExactly("1");
+    }
+
+    @Test
+    @DisplayName("(1,2) 값에서 () 제거 후 반환 검사")
+    void substring() {
+        String actual = "(1,2)";
+        String result  = actual.substring(1, actual.length() - 1);
+        assertThat(result).isEqualTo("1,2");
+    }
+
+    @Test
+    @DisplayName("문자열의 특정 위치의 문자를 가져올 때, 인덱스를 벗어나면 예외 발생")
+    void charAt() {
+        String actual = "abc";
+        assertThatThrownBy(() -> {
+            actual.charAt(20);
+        }).isInstanceOf(IndexOutOfBoundsException.class)
+                .hasMessageContaining("String index out of range");
+    }
 }

From 6217e7bfe26cd926621cdbff3340ca4a70877fed Mon Sep 17 00:00:00 2001
From: rigyeonghong <zxcvbee@naver.com>
Date: Sat, 20 Jul 2024 10:36:26 +0900
Subject: [PATCH 15/15] Set Test

---
 src/test/java/study/SetTest.java | 62 +++++++++++++++++++++++++++++++-
 1 file changed, 61 insertions(+), 1 deletion(-)

diff --git a/src/test/java/study/SetTest.java b/src/test/java/study/SetTest.java
index 81b24a5..1116565 100644
--- a/src/test/java/study/SetTest.java
+++ b/src/test/java/study/SetTest.java
@@ -1,2 +1,62 @@
-package study;public class SetTest {
+package study;
+
+import jdk.internal.joptsimple.internal.Strings;
+import org.assertj.core.internal.Integers;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.params.ParameterizedTest;
+import org.junit.jupiter.params.provider.CsvSource;
+import org.junit.jupiter.params.provider.ValueSource;
+
+import java.util.HashSet;
+import java.util.Set;
+
+import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.assertTrue;
+
+public class SetTest {
+    private Set<Integer> numbers;
+
+    @BeforeEach
+    void setUp() {
+        numbers = new HashSet<>();
+        numbers.add(1);
+        numbers.add(1);
+        numbers.add(2);
+        numbers.add(3);
+    }
+
+    @Test
+    @DisplayName("HashSet의 크기 확인")
+    void testHashSetSize() {
+        assertThat(numbers.size()).isEqualTo(3);
+    }
+
+    @Test
+    void contains() {
+        assertThat(numbers.contains(1)).isTrue();
+        assertThat(numbers.contains(2)).isTrue();
+        assertThat(numbers.contains(3)).isTrue();
+    }
+
+    @ParameterizedTest
+    @ValueSource(ints = {1,2,3})
+    @DisplayName("1,2,3 존재하는지 확인")
+    void testContainValue(int number) {
+        assertTrue(numbers.contains(number));
+    }
+
+    @ParameterizedTest
+    @CsvSource(value = {
+            "1, true",
+            "2, true",
+            "3, true",
+            "4, false",
+            "5, false"}, delimiter = ',')
+    @DisplayName("존재하는 값은 true, 아닌 값은 false 반환하는지 확인")
+    void testIsContainValue(int number, boolean expectedResult) {
+        assertThat(numbers.contains(number)).isEqualTo(expectedResult);
+    }
 }