diff --git a/.gitignore b/.gitignore
index ba45fbb..d2d7ea5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -57,7 +57,7 @@ playground.xcworkspace
 Pods/
 #
 # Add this line if you want to avoid checking in source code from the Xcode workspace
-*.xcworkspace
+# *.xcworkspace
 
 # Carthage
 #
diff --git a/InMyMemory.xcodeproj/project.xcworkspace/contents.xcworkspacedata b/InMyMemory.xcodeproj/project.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..919434a
--- /dev/null
+++ b/InMyMemory.xcodeproj/project.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "self:">
+   </FileRef>
+</Workspace>
diff --git a/InMyMemory.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/InMyMemory.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/InMyMemory.xcodeproj/project.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/InMyMemory.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved b/InMyMemory.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
new file mode 100644
index 0000000..421b15b
--- /dev/null
+++ b/InMyMemory.xcodeproj/project.xcworkspace/xcshareddata/swiftpm/Package.resolved
@@ -0,0 +1,122 @@
+{
+  "pins" : [
+    {
+      "identity" : "cwlcatchexception",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/mattgallagher/CwlCatchException.git",
+      "state" : {
+        "revision" : "3b123999de19bf04905bc1dfdb76f817b0f2cc00",
+        "version" : "2.1.2"
+      }
+    },
+    {
+      "identity" : "cwlpreconditiontesting",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/mattgallagher/CwlPreconditionTesting.git",
+      "state" : {
+        "revision" : "dc9af4781f2afdd1e68e90f80b8603be73ea7abc",
+        "version" : "2.2.0"
+      }
+    },
+    {
+      "identity" : "nimble",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/Quick/Nimble",
+      "state" : {
+        "revision" : "437d2a6d35b835adaae2a0cac49efe02ef4e0f35",
+        "version" : "13.1.2"
+      }
+    },
+    {
+      "identity" : "quick",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/Quick/Quick",
+      "state" : {
+        "revision" : "ef9aaf3f634b3a1ab6f54f1173fe2400b36e7cb8",
+        "version" : "7.3.0"
+      }
+    },
+    {
+      "identity" : "reactorkit",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/ReactorKit/ReactorKit",
+      "state" : {
+        "revision" : "8fa33f09c6f6621a2aa536d739956d53b84dd139",
+        "version" : "3.2.0"
+      }
+    },
+    {
+      "identity" : "rxdatasources",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/RxSwiftCommunity/RxDataSources",
+      "state" : {
+        "revision" : "90c29b48b628479097fe775ed1966d75ac374518",
+        "version" : "5.0.2"
+      }
+    },
+    {
+      "identity" : "rxflow",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/RxSwiftCommunity/RxFlow",
+      "state" : {
+        "revision" : "d8d4e53d05239f1ec1bd8bec173907868afa0fa1",
+        "version" : "2.13.0"
+      }
+    },
+    {
+      "identity" : "rxswift",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/ReactiveX/RxSwift",
+      "state" : {
+        "revision" : "9dcaa4b333db437b0fbfaf453fad29069044a8b4",
+        "version" : "6.6.0"
+      }
+    },
+    {
+      "identity" : "snapkit",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/SnapKit/SnapKit",
+      "state" : {
+        "revision" : "f222cbdf325885926566172f6f5f06af95473158",
+        "version" : "5.6.0"
+      }
+    },
+    {
+      "identity" : "swift-snapshot-testing",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/pointfreeco/swift-snapshot-testing",
+      "state" : {
+        "revision" : "26ed3a2b4a2df47917ca9b790a57f91285b923fb",
+        "version" : "1.12.0"
+      }
+    },
+    {
+      "identity" : "swinject",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/Swinject/Swinject",
+      "state" : {
+        "revision" : "463cb2d659c8ae34899d18057ea5b1bb86fc3178",
+        "version" : "2.8.4"
+      }
+    },
+    {
+      "identity" : "then",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/devxoul/Then",
+      "state" : {
+        "revision" : "d41ef523faef0f911369f79c0b96815d9dbb6d7a",
+        "version" : "3.0.0"
+      }
+    },
+    {
+      "identity" : "weakmaptable",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/ReactorKit/WeakMapTable.git",
+      "state" : {
+        "revision" : "cb05d64cef2bbf51e85c53adee937df46540a74e",
+        "version" : "1.2.1"
+      }
+    }
+  ],
+  "version" : 2
+}
diff --git a/InMyMemory.xcworkspace/contents.xcworkspacedata b/InMyMemory.xcworkspace/contents.xcworkspacedata
new file mode 100644
index 0000000..457db4c
--- /dev/null
+++ b/InMyMemory.xcworkspace/contents.xcworkspacedata
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Workspace
+   version = "1.0">
+   <FileRef
+      location = "container:InMyMemory.xcodeproj">
+   </FileRef>
+</Workspace>
diff --git a/InMyMemory.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist b/InMyMemory.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
new file mode 100644
index 0000000..18d9810
--- /dev/null
+++ b/InMyMemory.xcworkspace/xcshareddata/IDEWorkspaceChecks.plist
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<plist version="1.0">
+<dict>
+	<key>IDEDidComputeMac32BitWarning</key>
+	<true/>
+</dict>
+</plist>
diff --git a/InMyMemory.xcworkspace/xcshareddata/swiftpm/Package.resolved b/InMyMemory.xcworkspace/xcshareddata/swiftpm/Package.resolved
new file mode 100644
index 0000000..421b15b
--- /dev/null
+++ b/InMyMemory.xcworkspace/xcshareddata/swiftpm/Package.resolved
@@ -0,0 +1,122 @@
+{
+  "pins" : [
+    {
+      "identity" : "cwlcatchexception",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/mattgallagher/CwlCatchException.git",
+      "state" : {
+        "revision" : "3b123999de19bf04905bc1dfdb76f817b0f2cc00",
+        "version" : "2.1.2"
+      }
+    },
+    {
+      "identity" : "cwlpreconditiontesting",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/mattgallagher/CwlPreconditionTesting.git",
+      "state" : {
+        "revision" : "dc9af4781f2afdd1e68e90f80b8603be73ea7abc",
+        "version" : "2.2.0"
+      }
+    },
+    {
+      "identity" : "nimble",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/Quick/Nimble",
+      "state" : {
+        "revision" : "437d2a6d35b835adaae2a0cac49efe02ef4e0f35",
+        "version" : "13.1.2"
+      }
+    },
+    {
+      "identity" : "quick",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/Quick/Quick",
+      "state" : {
+        "revision" : "ef9aaf3f634b3a1ab6f54f1173fe2400b36e7cb8",
+        "version" : "7.3.0"
+      }
+    },
+    {
+      "identity" : "reactorkit",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/ReactorKit/ReactorKit",
+      "state" : {
+        "revision" : "8fa33f09c6f6621a2aa536d739956d53b84dd139",
+        "version" : "3.2.0"
+      }
+    },
+    {
+      "identity" : "rxdatasources",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/RxSwiftCommunity/RxDataSources",
+      "state" : {
+        "revision" : "90c29b48b628479097fe775ed1966d75ac374518",
+        "version" : "5.0.2"
+      }
+    },
+    {
+      "identity" : "rxflow",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/RxSwiftCommunity/RxFlow",
+      "state" : {
+        "revision" : "d8d4e53d05239f1ec1bd8bec173907868afa0fa1",
+        "version" : "2.13.0"
+      }
+    },
+    {
+      "identity" : "rxswift",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/ReactiveX/RxSwift",
+      "state" : {
+        "revision" : "9dcaa4b333db437b0fbfaf453fad29069044a8b4",
+        "version" : "6.6.0"
+      }
+    },
+    {
+      "identity" : "snapkit",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/SnapKit/SnapKit",
+      "state" : {
+        "revision" : "f222cbdf325885926566172f6f5f06af95473158",
+        "version" : "5.6.0"
+      }
+    },
+    {
+      "identity" : "swift-snapshot-testing",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/pointfreeco/swift-snapshot-testing",
+      "state" : {
+        "revision" : "26ed3a2b4a2df47917ca9b790a57f91285b923fb",
+        "version" : "1.12.0"
+      }
+    },
+    {
+      "identity" : "swinject",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/Swinject/Swinject",
+      "state" : {
+        "revision" : "463cb2d659c8ae34899d18057ea5b1bb86fc3178",
+        "version" : "2.8.4"
+      }
+    },
+    {
+      "identity" : "then",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/devxoul/Then",
+      "state" : {
+        "revision" : "d41ef523faef0f911369f79c0b96815d9dbb6d7a",
+        "version" : "3.0.0"
+      }
+    },
+    {
+      "identity" : "weakmaptable",
+      "kind" : "remoteSourceControl",
+      "location" : "https://github.com/ReactorKit/WeakMapTable.git",
+      "state" : {
+        "revision" : "cb05d64cef2bbf51e85c53adee937df46540a74e",
+        "version" : "1.2.1"
+      }
+    }
+  ],
+  "version" : 2
+}
diff --git a/README.md b/README.md
index 131e189..f4a96a0 100644
--- a/README.md
+++ b/README.md
@@ -21,3 +21,9 @@ InMyMemory는 자신의 기억을 저장할 수 있는 앱입니다.
 * Domain: Entity, Interface, UseCase
 * Data: DB, Repository (Implementation)
 * Presentation: View, Reactor, etc (UI)
+
+### 테스팅
+
+* XCTest
+* Quick, Nimble
+* SnapshotTesting