10/10 points: Provide a valid pubspec.yaml

5/5 points: Provide a valid README.md

5/5 points: Provide a valid CHANGELOG.md

10/10 points: Use an OSI-approved license

Detected license: BSD-3-Clause.

10/10 points: 20% or more of the public API has dartdoc comments

28 out of 31 API elements (90.3 %) have documentation comments.

Some symbols that are missing documentation: dartz_test.isLeftThat.isLeftThat.new, dartz_test.isRightThat.isRightThat.new, dartz_test.isSomeThat.isSomeThat.new.

10/10 points: Package has an example

20/20 points: Supports 6 of 6 possible platforms (iOS, Android, Web, Windows, macOS, Linux)

• ✓ Android

• ✓ iOS

• ✓ Windows

• ✓ Linux

• ✓ macOS

• ✓ Web

WASM-ready: This package is compatible with runtime wasm. See https://dart.dev/web/wasm for details.

40/50 points: code has no errors, warnings, lints, or formatting issues

Found 3 issues. Showing the first 2:

    ╷
192 │   isRightThat(matcher) : super("Either whose right value is", "right", matcher);
    │               ^^^^^^^
    ╵

    ╷
203 │   isLeftThat(matcher) : super("Either whose left value is", "left", matcher);
    │              ^^^^^^^
    ╵

10/10 points: All of the package dependencies are supported in the latest version

To reproduce run dart pub outdated --no-dev-dependencies --up-to-date --no-dependency-overrides.

10/10 points: Package supports latest stable Dart and Flutter SDKs

0/20 points: Compatible with dependency constraint lower bounds

dart pub downgrade failed with:

OUT:
Resolving dependencies...
Downloading packages...
< _fe_analyzer_shared 16.0.0 (was 100.0.0)
< analyzer 1.0.0 (was 13.0.0)
< args 2.0.0 (was 2.7.0)
< async 2.5.0 (was 2.13.1)
< boolean_selector 2.1.0 (was 2.1.2)
+ charcode 1.2.0
+ cli_util 0.3.0
< collection 1.15.0 (was 1.19.1)
[47 more lines]
ERR:
Exceeded timeout of 0:02:00.000000

Run dart pub downgrade and then dart analyze to reproduce the above problem.

You may run dart pub upgrade --tighten to update your dependency constraints, see dart.dev/go/downgrade-testing for details.