diff --git a/t/spec/basic/do.tcc b/t/spec/basic/do.tcc
new file mode 100644
index 00000000..314f83c9
--- /dev/null
+++ b/t/spec/basic/do.tcc
@@ -0,0 +1,6 @@
+===
+--- code
+say(do("t/spec/dat/3.tra"));
+--- stdout
+3
+--- stderr
diff --git a/eg/3.tra b/t/spec/dat/3.tra
similarity index 100%
rename from eg/3.tra
rename to t/spec/dat/3.tra