Correctly convert types

pkg/elem/rand_range.go

@@ -50,8 +50,24 @@ var randRangeCfg = &builtinConfig{
 			}
 
 			data := i.(map[string]interface{})
-			max := data["max"].(int)
-			min := data["min"].(int)
+			maxF, ok := data["max"].(float64)
+			var (
+				max int
+				min int
+			)
+			if !ok {
+				// has to be int at this point
+				max = data["max"].(int)
+			} else {
+				max = int(maxF)
+			}
+			minF, ok := data["min"].(float64)
+			if !ok {
+				// has to be int at this point
+				min = data["max"].(int)
+			} else {
+				min = int(minF)
+			}
 			// This generates values for the following interval [min, max] e.g. {min <= x <= max}
 			out.Push(min + rand.Intn(max-min+1))
 		}

pkg/elem/rand_range_test.go

@@ -39,15 +39,13 @@ func Test_Rand_Range(t *testing.T) {
 	o.Main().In().Push(map[string]interface{}{"min": 0, "max": 0})
 	a.PortPushes(0, o.Main().Out())
 
-	// this breaks type conversion
 	o = buildRandOperator(t)
 	o.Main().In().Push(map[string]interface{}{"min": 0.0, "max": 0})
-	a.PortPushes(nil, o.Main().Out())
+	a.PortPushes(0, o.Main().Out())
 
-	// this breaks type conversion
 	o = buildRandOperator(t)
 	o.Main().In().Push(map[string]interface{}{"min": "0.0", "max": 0})
-	a.PortPushes(nil, o.Main().Out())
+	a.PortPushes(0, o.Main().Out())
 }
 func Test_Rand_Range_Negative_Values(t *testing.T) {
 	a := assertions.New(t)