diff --git a/.gitignore b/.gitignore
index e856a6b..eecc993 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
 node_modules/**
 build/**
-.DS_Store
\ No newline at end of file
+git-test
+.DS_Store
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 89d1965..4887642 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,4 +1,13 @@
 {
     "editor.formatOnSave": true,
-    "editor.defaultFormatter": "esbenp.prettier-vscode"
-}
\ No newline at end of file
+    "editor.defaultFormatter": "esbenp.prettier-vscode",
+    "[shellscript]": {
+        "editor.defaultFormatter": "foxundermoon.shell-format"
+    },
+    "[ignore]": {
+        "editor.defaultFormatter": "foxundermoon.shell-format"
+    },
+    "[properties]": {
+        "editor.defaultFormatter": "foxundermoon.shell-format"
+    }
+}
diff --git a/scripts/test.sh b/scripts/test.sh
new file mode 100755
index 0000000..c35b808
--- /dev/null
+++ b/scripts/test.sh
@@ -0,0 +1,29 @@
+#!/bin/bash
+# A script to quickly generate a random diff and display it. Hopefully this will
+# help repro https://github.com/banga/git-split-diffs/issues/16.
+
+set -e
+set -x
+
+cd git-test
+
+git init
+touch src.ts
+
+choice=$((RANDOM % 2))
+
+case $choice in
+0)
+    echo 'Appending some lines'
+    cat ../src/context.ts >>src.ts
+    ;;
+1)
+    echo 'Deleting half the lines'
+    sed -i '' -n 'p;n' src.ts
+    ;;
+esac
+
+git commit -am "$(date)"
+git show
+
+cd -