diff --git a/about_files.go b/about_files.go
new file mode 100644
index 0000000..539d84f
--- /dev/null
+++ b/about_files.go
@@ -0,0 +1,11 @@
+package go_koans
+
+import "io/ioutil"
+import "strings"
+
+func testFiles() {
+  filename := "about_files.go"
+  contents, _ := ioutil.ReadFile(filename)
+  lines := strings.Split(string(contents), "\n")
+  assert(lines[5] == __string__) // handling files is too trivial
+}
diff --git a/setup_koans_test.go b/setup_koans_test.go
index cec612f..328c5af 100644
--- a/setup_koans_test.go
+++ b/setup_koans_test.go
@@ -24,10 +24,10 @@ func TestKoans(t *testing.T) {
   //testControlFlow()
   //testEnumeration()
   //testAnonymousFunctions()
-  testVariadicFunctions()
+  //testVariadicFunctions()
+  testFiles()
 
   // TODO: ie, gameplan
-  //testFiles()
   //testInterfaces()
   //testMaps()
   //testStructs()