diff --git a/.vscode/launch.json b/.vscode/launch.json
new file mode 100644
index 0000000..f8d08aa
--- /dev/null
+++ b/.vscode/launch.json
@@ -0,0 +1,23 @@
+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Python: Module",
+            "type": "python",
+            "request": "launch",
+            "module": "renamebycsv.cli",
+            "args": [
+                "${workspaceFolder}/tests/resources/files",
+                "group\\d+-\\w-(\\d+)\\.txt",
+                "${workspaceFolder}/tests/resources/groups.csv",
+                "target",
+                "replaced",
+                "-d"
+            ],
+            "justMyCode": true
+        }
+    ]
+}
\ No newline at end of file
diff --git a/setup.cfg b/setup.cfg
index 57fcdcc..bbb0627 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,6 +1,6 @@
 [metadata]
 name = renamebycsv
-version = 0.0.3
+version = 0.0.4
 
 [options]
 packages = renamebycsv
diff --git a/tests/resources/files/foo.txt b/tests/resources/files/foo.txt
new file mode 100644
index 0000000..4add785
--- /dev/null
+++ b/tests/resources/files/foo.txt
@@ -0,0 +1 @@
+Text
\ No newline at end of file
diff --git a/tests/resources/files/group1-a-12.txt b/tests/resources/files/group1-a-12.txt
new file mode 100644
index 0000000..71a4e5b
--- /dev/null
+++ b/tests/resources/files/group1-a-12.txt
@@ -0,0 +1,2 @@
+
+Text
\ No newline at end of file
diff --git a/tests/resources/files/group1-a-13.txt b/tests/resources/files/group1-a-13.txt
new file mode 100644
index 0000000..4add785
--- /dev/null
+++ b/tests/resources/files/group1-a-13.txt
@@ -0,0 +1 @@
+Text
\ No newline at end of file
diff --git a/tests/resources/files/group1-b-10.txt b/tests/resources/files/group1-b-10.txt
new file mode 100644
index 0000000..4add785
--- /dev/null
+++ b/tests/resources/files/group1-b-10.txt
@@ -0,0 +1 @@
+Text
\ No newline at end of file
diff --git a/tests/resources/files/group1-b-11.txt b/tests/resources/files/group1-b-11.txt
new file mode 100644
index 0000000..4add785
--- /dev/null
+++ b/tests/resources/files/group1-b-11.txt
@@ -0,0 +1 @@
+Text
\ No newline at end of file
diff --git a/tests/resources/files/group1-b-14.txt b/tests/resources/files/group1-b-14.txt
new file mode 100644
index 0000000..4add785
--- /dev/null
+++ b/tests/resources/files/group1-b-14.txt
@@ -0,0 +1 @@
+Text
\ No newline at end of file
diff --git a/tests/resources/files/group1-b-9.txt b/tests/resources/files/group1-b-9.txt
new file mode 100644
index 0000000..4add785
--- /dev/null
+++ b/tests/resources/files/group1-b-9.txt
@@ -0,0 +1 @@
+Text
\ No newline at end of file
diff --git a/tests/resources/groups.csv b/tests/resources/groups.csv
new file mode 100644
index 0000000..519b14c
--- /dev/null
+++ b/tests/resources/groups.csv
@@ -0,0 +1,6 @@
+target,replaced
+9,a
+10,b
+11,c
+12,d
+13,e
\ No newline at end of file