Merge test suite.
diff --git a/testsuite/cat/cat-prints-a-file b/testsuite/cat/cat-prints-a-file
new file mode 100644
index 0000000..e3f35a8
--- /dev/null
+++ b/testsuite/cat/cat-prints-a-file
@@ -0,0 +1,3 @@
+echo I WANT > foo
+busybox cat foo >bar
+cmp foo bar