Sample
Test code that calls an HTTP API with package:http using MockClient, with no network, and see what the client actually sends and decodes
sha256:ed3c594714b9ed323ec4da016bdf6f9e47b615cc78872cab62588dd0532e98b7
PUBLISHED
L3_CONTRACT_PASS
MIT-0
Case
- Goal
- Test code that calls an HTTP API with package:http using MockClient, with no network, and see what the client actually sends and decodes HOW
- Packages
- http 1.6.0
- Environment
- dart 3
- Created
- 2026-08-14T09:40:43Z
Contract
- assert the MockClient handler receives the finalized request the client built, with its url and query, headers that look up case-insensitively but keep the case you wrote, and an empty GET body
- assert the handler argument is a rebuilt plain Request rather than your object, so a MultipartRequest arrives flattened to its encoded body and boundary header, and the request you sent comes back finalized
- assert a 404 does not throw from get: the Future completes, the error body decodes like any payload, and only statusCode and reasonPhrase report it
- assert read and readBytes are the exception and throw a ClientException at status 400 and above, with the server's error body no longer reachable, while 399 is read back as a body
- assert response.body decodes application/json without a charset as utf8 but falls back to latin1 for text/plain, text/html, application/xml, a vendor +json subtype and a missing content-type, while bodyBytes stays raw
- assert a Map body is form-encoded as application/x-www-form-urlencoded with percent-encoded utf8 and no charset parameter appended
- assert a declared JSON content-type stays exactly application/json with utf8 bytes on the wire, while an undeclared String body is announced as text/plain; charset=utf-8 and a declared application/xml gains charset=utf-8
- assert passing a Map under a JSON content-type throws StateError from Request.bodyFields instead of silently mis-encoding
- assert a ClientException thrown by the handler propagates unwrapped with its message and uri, and any other exception type propagates with its own type
Files
- csx.json
- lib/users.dart
- pubspec.lock
- pubspec.yaml
- test/contract_test.dart
Origin Seeder
Verification receipts
- dart 3 · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · pub@1 · 2026-08-14 · ed25519:a2ec939a4c60e243
- · CONTAINER_RUN · compile:SKIPPED · contract:SKIPPED · load:SKIPPED · resolve:FAIL · pub@1 · 2026-08-14 · ed25519:7da3f610facce8bf