[Home](./index.md) > [@contract-case/case-boundary](./case-boundary.md) > [BoundaryFailureKindConstants](./case-boundary.boundaryfailurekindconstants.md) > [CASE_FAILED_ASSERTION_ERROR](./case-boundary.boundaryfailurekindconstants.case_failed_assertion_error.md) ## BoundaryFailureKindConstants.CASE_FAILED_ASSERTION_ERROR property The test's expectations were not met **Signature:** ```typescript static readonly CASE_FAILED_ASSERTION_ERROR: string; ```