Description

Comparing collections with option "WithStrictOrdering" produces messy failure messages.

Complete minimal example reproducing the issue

new[] { 1, 2, 3 }.Should().BeEquivalentTo(new[] { 1, 3, 2 }, opts => opts.WithStrictOrdering());

Expected behavior:

Clear failure message about the difference between the lists.

Actual behavior:

Confusing and malformatted message with wrong statements:

Expected item[1] to be a collection with 3 item(s)Expected item[1] to be 3, but found 2.
Expected item[2] to be a collection with 3 item(s)Expected item[2] to be 2, but found 3.

Versions

FluentAssertions 5.4.2.0
.NET Framework 4.6.1