| Element | Missed Instructions | Cov. | Missed Branches | Cov. | Missed | Cxty | Missed | Lines | Missed | Methods |
| Total | 293 of 293 | 0% | 0 of 0 | n/a | 14 | 14 | 57 | 57 | 14 | 14 |
| testGetCharsSubSequence() | | 0% | n/a | 1 | 1 | 5 | 5 | 1 | 1 | |
| testAppendCharArrSubSequence() | | 0% | n/a | 1 | 1 | 5 | 5 | 1 | 1 | |
| testGetChars() | | 0% | n/a | 1 | 1 | 3 | 3 | 1 | 1 | |
| testToCharsUnsupportedEncoding() | | 0% | n/a | 1 | 1 | 6 | 6 | 1 | 1 | |
| testAppendByteArrSubSequence() | | 0% | n/a | 1 | 1 | 5 | 5 | 1 | 1 | |
| testAppendByteArr() | | 0% | n/a | 1 | 1 | 5 | 5 | 1 | 1 | |
| testToStringUnsupportedEncoding() | | 0% | n/a | 1 | 1 | 4 | 4 | 1 | 1 | |
| testReset() | | 0% | n/a | 1 | 1 | 5 | 5 | 1 | 1 | |
| testAppendNull() | | 0% | n/a | 1 | 1 | 5 | 5 | 1 | 1 | |
| testToString() | | 0% | n/a | 1 | 1 | 4 | 4 | 1 | 1 | |
| testCharAt() | | 0% | n/a | 1 | 1 | 3 | 3 | 1 | 1 | |
| testSubSequence() | | 0% | n/a | 1 | 1 | 3 | 3 | 1 | 1 | |
| testCharConstructor() | | 0% | n/a | 1 | 1 | 3 | 3 | 1 | 1 | |
| StringAppenderTest() | | 0% | n/a | 1 | 1 | 1 | 1 | 1 | 1 |