Unit Testing Stages with Rejects
Most DataStage jobs can be tested via MettleCI’s Unit Testing function simply by replacing input and output stages. However, some job designs - while commonplace - will necessitate a more advanced Unit Testing configuration. The sections below outline MettleCI Unit Test Spec patterns that best match these job designs.
Input stage with rejects
The Input stage can be Unit Tested by including both read and reject links in the given clause of the Unit Test Spec.
The CSV data specified for the rejects link should contain records that will actually test the flow of records through the reject path(s) of the job.
If you use MettleCI’s automated Unit Test creation function for a Job that needs this Unit Testing pattern, MettleCI will ensure the resulting Spec in that new Unit Test reflects the above approach.
Your Job
Your Test Spec
given:
- stage: Input
link: Read
path: Input-Read.csv
- stage: Input
link: Rejects
path: Input-Rejects.csv
when:
...What’s Generated
Output stage with rejects
The output stage can be Unit Tested by including
the write link in the then clause of the Unit Test Spec; and
the reject in the given clause of the Unit Test Spec.
The CSV data specified for the rejects link should contain records that will actually test the flow of records through the reject path(s) of the job.
If you use MettleCI’s automated Unit Test creation function for a Job that needs this Unit Testing pattern, MettleCI will ensure the resulting Spec in that new Unit Test reflects the above approach.
Your Job
Your Test Spec
given:
- stage: Output
link: Rejects
path: Output-Rejects.csv
when:
...
then:
- stage: Output
link: Write
path: Output-Write.csvWhat’s Generated
