diff --git a/Vagrantfile b/Vagrantfile
index 99e789b..9f732a2 100644
--- a/Vagrantfile
+++ b/Vagrantfile
@@ -63,6 +63,45 @@ Vagrant.configure("2") do |config|
         touch -t #{some_date} "#{test_dir}/files/"*
     EOF
 
+    # File name extension testcases.
+    config.vm.provision :shell, privileged: false, inline: <<-EOF
+        set -xe
+        mkdir "#{test_dir}/file-types"
+
+        touch "#{test_dir}/file-types/Makefile"
+
+        touch "#{test_dir}/file-types/image.png"
+        touch "#{test_dir}/file-types/image.svg"
+
+        touch "#{test_dir}/file-types/video.avi"
+        touch "#{test_dir}/file-types/video.wmv"
+
+        touch "#{test_dir}/file-types/music.mp3"
+        touch "#{test_dir}/file-types/music.ogg"
+
+        touch "#{test_dir}/file-types/lossless.flac"
+        touch "#{test_dir}/file-types/lossless.wav"
+
+        touch "#{test_dir}/file-types/crypto.asc"
+        touch "#{test_dir}/file-types/crypto.signature"
+
+        touch "#{test_dir}/file-types/document.pdf"
+        touch "#{test_dir}/file-types/document.xlsx"
+
+        touch "#{test_dir}/file-types/compressed.zip"
+        touch "#{test_dir}/file-types/compressed.tar.gz"
+
+        touch "#{test_dir}/file-types/backup~"
+        touch "#{test_dir}/file-types/#SAVEFILE#"
+        touch "#{test_dir}/file-types/file.tmp"
+
+        touch "#{test_dir}/file-types/compiled.class"
+        touch "#{test_dir}/file-types/compiled.o"
+        touch "#{test_dir}/file-types/compiled.js"
+        touch "#{test_dir}/file-types/compiled.coffee"
+
+    EOF
+
     # Awkward symlink testcases.
     config.vm.provision :shell, privileged: false, inline: <<-EOF
         set -xe
diff --git a/xtests/file-types b/xtests/file-types
new file mode 100644
index 0000000..b895601
--- /dev/null
+++ b/xtests/file-types
@@ -0,0 +1,22 @@
+#SAVEFILE#
+Makefile
+backup~
+compiled.class
+compiled.coffee
+compiled.js
+compiled.o
+compressed.tar.gz
+compressed.zip
+crypto.asc
+crypto.signature
+document.pdf
+document.xlsx
+file.tmp
+image.png
+image.svg
+lossless.flac
+lossless.wav
+music.mp3
+music.ogg
+video.avi
+video.wmv
diff --git a/xtests/run.sh b/xtests/run.sh
index 18d998e..27caaf4 100755
--- a/xtests/run.sh
+++ b/xtests/run.sh
@@ -43,5 +43,8 @@ $exa $testcases/passwd -lgh | diff -q - $results/passwd  || exit 1
 # Permissions
 $exa $testcases/permissions -lghR 2>&1 | diff -q - $results/permissions  || exit 1
 
+# File types
+$exa $testcases/file-types -1 2>&1 | diff -q - $results/file-types  || exit 1
+
 
 echo "All the tests passed!"