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DynamoDB Local on

docs.aws.amazon.com/amazondynamodb/latest/developerguide/DynamoDBLocal.html

d89f8fcc6b1a as measured in this run

Grade C
high divergence
answers 16.1% of the suite differently from real DynamoDB
98.6% covered · 13 unsupported
Tier 1 · Core 7.8% diverges
100.0% covered
37 of 475 attempted
Tier 2 · Complete 15.7% diverges
91.8% covered 13 unsupported
25 of 146 attempted
Tier 3 · Strict 28.7% diverges
100.0% covered
92 of 320 attempted

When this run was published the board led with a single correctness percentage. The figures here are that run's own results restated as divergence and coverage, so they read differently from what this page showed at the time. The changelog has the change.

How it got here

DynamoDB Local'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

DynamoDB Local divergence up to 2026-07-16 0% 13% 25% divergence - lower is better 23 Mar 25 Apr 23 May 25 May 29 May 16 Jun 19 Jun 22 Jun 24 Jun 29 Jun 1 Jul 6 Jul 14 Jul 16 Jul 16.1%
Diverging on 16.1% of the suite as of 16 Jul, at worst 17.8% on 30 Jun. Lower is better, so a falling line is a target getting closer to real DynamoDB.

Coverage

DynamoDB Local coverage up to 2026-07-16 96% 98% 100% coverage - higher is better 23 Mar 25 Apr 23 May 25 May 29 May 16 Jun 19 Jun 22 Jun 24 Jun 29 Jun 1 Jul 6 Jul 14 Jul 16 Jul 98.6%
Implementing 98.6% of the suite as of 16 Jul, as little as 98.1% on 26 May. 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.