Part 7 "Test Process & Incident Management" Which TWO of the following artefacts can be useful as a test oracle the first time a test case is run? 1 credit [K2]

Question

Exhibit

Options

• AIncident report
• BRequirements Specification
• CTest summary report
• DLegacy system
• ETest plan

• A
  3% (1)
• B
  88% (29)
• C
  6% (2)
• E
  3% (1)

Explanation

A test oracle is any source that provides the expected outcome of a test, allowing you to judge pass/fail. On the first run, you cannot compare against a previous result, so you need an independent reference.

B (Requirements Specification) is correct because it explicitly defines what the system should do - making it a primary oracle for deriving expected results before any test has run.

D (Legacy system) is correct because you can feed the same inputs into the old system and treat its output as the expected result for the new system. This "back-to-back" comparison works from the very first run.

Why the distractors fail:

• A (Incident report) - documents a defect already found; it's an output of testing, not a source of expected results.
• C (Test summary report) - summarises testing outcomes at the end of a cycle; again an output, not an oracle.
• E (Test plan) - describes the approach and scope of testing, not the expected behaviour of the system under test.

Memory tip: Ask yourself "Does this artefact tell me what the system SHOULD produce?" Requirements say what should happen; a legacy system shows what did happen before. Plans and reports describe the testing process itself - they never tell you the expected result.

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