# [ref_impl_eiffel] [868] Add a test demonstrating a bug in INTERVAL.is_equal.

**Category:** [Reference Implementation: Eiffel (archive)](https://discourse.openehr.org/c/reference-implementation-eiffel-archive/161)
**Created:** 2009-05-24 23:39 UTC
**Views:** 2
**Replies:** 0
**URL:** https://discourse.openehr.org/t/ref-impl-eiffel-868-add-a-test-demonstrating-a-bug-in-interval-is-equal/13288

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## Post #1 by @svn1

Revision: 868
Author:   peter\.gummer

Log Message:

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**Canonical:** https://discourse.openehr.org/t/ref-impl-eiffel-868-add-a-test-demonstrating-a-bug-in-interval-is-equal/13288
**Original content:** https://discourse.openehr.org/t/ref-impl-eiffel-868-add-a-test-demonstrating-a-bug-in-interval-is-equal/13288