Merging line and condition coverage data

An approach is provided that receives a correlation data structure from a memory. The correlation data structure indicates a number of expected test event triggers that correspond to a test case that includes a number of test events. The test case is executed by a computer processor, the execution resulting in one or more resultant data structures stored in the memory. The resultant data structures indicate one or more actual test event triggers that occurred during the execution. A base key value is generated corresponding to each of the resultant data structures. A scalar array is searched for the base key values. In response to finding base key values, a counter corresponding to the base key values is incremented. However, if base key values are not found in the scalar array, then the base key values are added to the scalar array and the added entries are initialized.