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7 emulators 744 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 a downward arrow can be the new tests biting rather than a target regressing.

Suite grew from 736 to 744 tests this run.

That's 8 new tests measured against every target. Movement below compares to the previous run, so a fall here is as likely to be the stricter suite as a real regression.

What changed in the suite this run

Suite on

Grew to 744 tests, up 8, pinning the Select / ProjectionExpression rules on Query and Scan. A ProjectionExpression is only valid with Select SPECIFIC_ATTRIBUTES, and ALL_PROJECTED_ATTRIBUTES is only valid with an IndexName; real DynamoDB rejects both with a ValidationException before reading anything. The cases span ALL_ATTRIBUTES, COUNT, and ALL_PROJECTED_ATTRIBUTES, including the request that breaks both rules at once, where AWS reports the ProjectionExpression one. They assert the contractual phrase, so they hold whether or not the engine carries the wrapper AWS adds on Query but not Scan.

  1. DynamoDB
    live (AWS) full coverage
    100% ground truth
    Tier 1 100%
    Tier 2 100%
    Tier 3 100%
  2. Dynoxide
    0.10.0 14 unsupported ; covers 98.1% of the suite
    94.2% -1.0pp fell 1.0 percentage points
    Tier 1 95.2%
    Tier 2 93.7%
    Tier 3 93.0%
  3. ExtendDB
    v0.1.1 42 unsupported ; covers 94.4% of the suite
    93.6% -0.8pp fell 0.8 percentage points
    Tier 1 93.6%
    Tier 2 91.9%
    Tier 3 94.3%
  4. Floci
    78ee619e895a 9 unsupported ; covers 98.8% of the suite
    90.9% +2.4pp rose 2.4 percentage points
    Tier 1 94.4%
    Tier 2 82.6%
    Tier 3 90.0%
  5. Ministack
    a64f3c3bebff full coverage
    90.1% -1.0pp fell 1.0 percentage points
    Tier 1 89.0%
    Tier 2 87.9%
    Tier 3 93.0%
  6. LocalStack
    2026.5.4 8 unsupported ; covers 98.9% of the suite
    86.5% +0.1pp rose 0.1 percentage points
    Tier 1 97.9%
    Tier 2 91.0%
    Tier 3 65.5%
  7. DynamoDB Local
    d89f8fcc6b1a 13 unsupported ; covers 98.3% of the suite
    85.4% +0.2pp rose 0.2 percentage points
    Tier 1 96.5%
    Tier 2 87.5%
    Tier 3 65.9%
  8. Dynalite
    4.0.0 67 unsupported ; covers 91.0% of the suite
    79.0% -0.9pp fell 0.9 percentage points
    Tier 1 93.0%
    Tier 2 14.9%
    Tier 3 76.9%