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ExtendDB (SQLite) on

github.com/ExtendDB/extenddb

v0.1.7 as measured in this run

Grade B
low divergence · coverage lowers this row to B
answers 2.6% of the suite differently from real DynamoDB
91.8% covered · 87 unsupported
Tier 1 · Core 0.8% diverges
100.0% covered
4 of 489 attempted
Tier 2 · Complete 3.1% diverges
63.4% covered 83 unsupported
7 of 144 attempted
Tier 3 · Strict 4.7% diverges
98.8% covered 4 unsupported
16 of 336 attempted

How it got here

ExtendDB (SQLite)'s history up to this run, ending on the figures above. Both are plotted because neither reads correctly alone: divergence falls when a target stops attempting an operation it used to get wrong, so a fall in the first plot is only an improvement if the second one holds. The target's own page carries the full history.

Divergence

ExtendDB (SQLite) divergence up to 2026-08-23 0% 2% 4% divergence - lower is better 15 Aug 17 Aug 18 Aug 21 Aug 23 Aug 2.6%
Diverging on 2.6% of the suite as of 23 Aug. Lower is better, so a falling line is a target getting closer to real DynamoDB.

Coverage

ExtendDB (SQLite) coverage up to 2026-08-23 85% 93% 100% coverage - higher is better 15 Aug 17 Aug 18 Aug 21 Aug 23 Aug 91.8%
Implementing 91.8% of the suite as of 23 Aug, as little as 87.6% on 21 Aug. Higher is better. This is the share of the suite's tests a target implements at all. A fail becoming a skip leaves both numerators over the same fixed denominator, so a fall here is matched point for point by a fall in divergence: withdrawal costs exactly as much coverage as it gains divergence.

Where it fell short on this date

The tests this run recorded as failing, each linked to its source at the commit that measured it. For the current picture, see this target's latest results, or every target in this run.