Short tests don't rely on PATH

internal/code/execute_test.go

@@ -102,6 +102,9 @@ func main() {
 	}
 
 	for _, tc := range tt {
+		if testing.Short() {
+			t.SkipNow()
+		}
 		r := code.Execute(tc.block)
 		if r.Out != tc.expected.Out {
 			t.Fatalf("invalid output, got %s, want %s", r.Out, tc.expected.Out)

internal/code/languages.go

@@ -33,6 +33,6 @@ var Languages = map[string]Language{
 	},
 	Elixir: {
 		Extension: "exs",
-		Command: 	[]string{"elixir"},
+		Command:   []string{"elixir"},
 	},
 }