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Browse 3 real-world technical and behavioral interview questions about Ci. Review scenarios, edge cases, and architectural best practices.
Contract testing has each side verify itself against a shared description of the interaction, so consumer expectations are checked against the provider's real behaviour without the two ever running together. Mismatches surface in each team's own pipeline, not in a shared environment days later. It also connects api testing to the point an interviewer is testing.
A failure has to be diagnosable from its artefacts alone, because nobody can attach a debugger to a CI run: that means assertions that report the compared values, a message naming the business expectation, and captured evidence of the state at the moment of failure. Use this automation answer to show the decision, trade-off, and evidence rather than a memorised definition.
Profile before cutting: suite time concentrates in a few tests, and the cause is usually repeated setup or real waiting rather than work. Parallelise what is independent, move the slow and rarely-failing out of the merge path, and treat deleting redundant tests as legitimate.