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Run

7 emulators 699 tests

Results as of this run. The arrow shows each target's movement since the previous run it was tested in. The suite grew this run, so an upward arrow can be the new tests biting rather than a target getting worse.

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.

Suite grew from 684 to 699 tests this run.

That's 15 new tests measured against every target. Movement below compares to the previous run, so a rise here is as likely to be the stricter suite as a real regression.

  1. DynamoDB
    live (AWS)

    Runs via: AWS service

    Grade baseline
    0.0%Divergence
    100.0%Coverage

    no divergence in all 33 regions

    ground truth
    Tier breakdown
    Tier 1 · Core 0.0% diverges
    100.0% covered
    Tier 2 · Complete 0.0% diverges
    100.0% covered
    Tier 3 · Strict 0.0% diverges
    100.0% covered
  2. Dynoxide
    0.10.0 14 unsupported ; covers 98.0% of the suite

    Runs via: npx, Docker, Homebrew, binary, npm, cargo, embedded, GitHub Action, source

    Maintained by the board’s author

    Grade A
    0.0%Divergence
    98.0%Coverage

    coverage lowers this row to A

    diverged 4.4 percentage points less
    Tier breakdown
    Tier 1 · Core 0.0% diverges
    100.0% covered
    Tier 2 · Complete 0.0% diverges
    89.4% covered 14 unsupported
    Tier 3 · Strict 0.0% diverges
    100.0% covered
  3. Floci
    67825c62ff44 9 unsupported ; covers 98.7% of the suite

    Runs via: Docker, Homebrew, install script, Scoop, binary, JAR

    Grade B
    7.3%Divergence
    98.7%Coverage
    diverged 0.9 percentage points more
    Tier breakdown
    Tier 1 · Core 6.5% diverges
    100.0% covered
    Tier 2 · Complete 11.4% diverges
    93.2% covered 9 unsupported
    Tier 3 · Strict 6.1% diverges
    100.0% covered
  4. ExtendDB
    v0.1.0 42 unsupported ; covers 94.0% of the suite

    Runs via: source

    Grade B
    5.9%Divergence
    94.0%Coverage
    diverged 0.1 percentage points less
    Tier breakdown
    Tier 1 · Core 6.8% diverges
    100.0% covered
    Tier 2 · Complete 4.5% diverges
    68.2% covered 42 unsupported
    Tier 3 · Strict 5.1% diverges
    100.0% covered
  5. LocalStack
    2026.5.1 8 unsupported ; covers 98.9% of the suite

    Runs via: Docker, pip, Homebrew, binary

    Grade B
    11.6%Divergence
    98.9%Coverage
    diverged 0.3 percentage points less
    Tier breakdown
    Tier 1 · Core 1.4% diverges
    100.0% covered
    Tier 2 · Complete 6.8% diverges
    93.9% covered 8 unsupported
    Tier 3 · Strict 31.3% diverges
    100.0% covered
  6. Ministack
    b852d7c01e53

    Runs via: pip, Docker, source

    Grade B
    13.0%Divergence
    100.0%Coverage
    diverged 21.3 percentage points less
    Tier breakdown
    Tier 1 · Core 4.2% diverges
    100.0% covered
    Tier 2 · Complete 12.1% diverges
    100.0% covered
    Tier 3 · Strict 28.0% diverges
    100.0% covered
  7. DynamoDB Local
    d89f8fcc6b1a 13 unsupported ; covers 98.1% of the suite

    Runs via: Docker, JAR, Maven

    Grade B
    12.7%Divergence
    98.1%Coverage
    unchanged
    Tier breakdown
    Tier 1 · Core 2.8% diverges
    100.0% covered
    Tier 2 · Complete 9.8% diverges
    90.2% covered 13 unsupported
    Tier 3 · Strict 30.8% diverges
    100.0% covered
  8. Dynalite
    4.0.0 67 unsupported ; covers 90.4% of the suite

    Runs via: npm, npx, embedded

    Grade C
    15.3%Divergence
    90.4%Coverage
    diverged 0.3 percentage points less
    Tier breakdown
    Tier 1 · Core 4.5% diverges
    100.0% covered
    Tier 2 · Complete 40.9% diverges
    49.2% covered 67 unsupported
    Tier 3 · Strict 17.3% diverges
    100.0% covered