Validate Expected Error Messages | Dataford Interview Questions

Problem

Given a list of test result strings, write a function count_message_mismatches(results) that returns the number of failed test cases where the expected error message does not exactly match the actual error message. Each string is formatted as STATUS|expected=<text>|actual=<text>, where STATUS is either PASS or FAIL. Only FAIL entries should be checked; PASS entries are ignored.

Constraints

1 <= len(results) <= 10^4
Each string contains exactly three |-separated parts in the required format
Message text may be empty but does not contain |

Problem

Constraints

1 <= len(results) <= 10^4
Each string contains exactly three |-separated parts in the required format
Message text may be empty but does not contain |

Problem

Constraints

1 <= len(results) <= 10^4
Each string contains exactly three |-separated parts in the required format
Message text may be empty but does not contain |

Problem

Constraints

1 <= len(results) <= 10^4
Each string contains exactly three |-separated parts in the required format
Message text may be empty but does not contain |