match without result (#25)

* match without result * fix
alexpantyukhin · Sep 19, 2019 · 25c72c4 · 25c72c4
1 parent ba44840
commit 25c72c4
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Showing 2 changed files with 12 additions and 1 deletion.
diff --git a/match.go b/match.go
@@ -90,7 +90,12 @@ func (matcher *Matcher) Result() (bool, interface{}) {
 					params = append(params, reflect.ValueOf(matchedItems[i]))
 				}
 
-				return true, reflect.ValueOf(mi.action).Call(params)[0].Interface()
+				funcRes := reflect.ValueOf(mi.action).Call(params)
+				if (len(funcRes)) > 0 {
+					return true, funcRes[0].Interface()
+				}
+
+				return true, nil
 			}
 
 			return true, mi.action

diff --git a/match_test.go b/match_test.go
@@ -39,6 +39,12 @@ func TestMatch_Fibonacci(t *testing.T) {
 	assert.Equal(t, 21, fib(8))
 }
 
+func TestMatch_MatchWithoutResult(t *testing.T){
+	Match(10).
+	When(10, func() { assert.True(t, true) }).
+	Result()
+}
+
 func TestMatch_SimpleTypeIntWithFunc(t *testing.T) {
 	_, res := Match(42).
 		When(42, func() interface{} { return 84 }).