| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 16 of 16 | 0% | 0 of 0 | n/a | 3 | 3 | 6 | 6 | 3 | 3 |
| concat(RubyString, RubyString) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| StringNodes.ConcatNode(RubyContext, SourceSection) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 | |
| StringNodes.ConcatNode(StringNodes.ConcatNode) | | 0% | n/a | 1 | 1 | 2 | 2 | 1 | 1 |