negative wait WIP

common/boot_command/boot_command_ast.go

@@ -84,6 +84,12 @@ type waitExpression struct {
 // Do waits the amount of time described by the expression. It is cancellable
 // through the context.
 func (w *waitExpression) Do(ctx context.Context, _ BCDriver) error {
+	/*
+		// do I want this to not parse or to error?
+			if w.d < 0 {
+				panic("Was not expecting negative wait duration.")
+			}
+	*/
 	log.Printf("[INFO] Waiting %s", w.d)
 	select {
 	case <-time.After(w.d):

common/boot_command/boot_command_ast_test.go

@@ -99,3 +99,18 @@ func Test_special(t *testing.T) {
 		}
 	}
 }
+
+func Test_negativeWait(t *testing.T) {
+	in := "<wait-1m>"
+	_, err := ParseReader("", strings.NewReader(in))
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	/*
+		gL := toIfaceSlice(got)
+		for _, g := range gL {
+			assert.Equal(t, tt.out, g.(*specialExpression).String())
+		}
+	*/
+}