| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 5 of 61 | 91% | 0 of 6 | 100% | 3 | 10 | 3 | 14 | 3 | 7 |
| execute(Object) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| currentState() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| restoreState(Map) | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 | |
| execute(Object[]) | | 100% | | 100% | 0 | 3 | 0 | 5 | 0 | 1 |
| init(ExpressionExecutor[], ConfigReader, SiddhiAppContext) | | 100% | | 100% | 0 | 2 | 0 | 3 | 0 | 1 |
| ConcatFunctionExtension() | | 100% | n/a | 0 | 1 | 0 | 2 | 0 | 1 | |
| getReturnType() | | 100% | n/a | 0 | 1 | 0 | 1 | 0 | 1 |