WrongNonKey

Wrong values are signalled in different ways, depending on where they occur in a row.

Matching of each row proceeds from left to right across the columns, so that earlier columns act as keys.

If a "non-key" value is wrong, it's signalled in place. Here the expected "|one|3|" was actually "|one|1|":
fitLib.FixtureFixture
fixturefitLib.specify.RowFixtureUnderTest
sa
rrtwo2
rrtwo1
rwone3