Handle messages with fields omitted

features/actions/publishReport.mts

@@ -5,7 +5,7 @@ import path from 'node:path'
 import { Action } from '../support/Actor.mjs'
 import { PublishResult } from './types'
 
-export const publishReport: (privateToken?: string) => Action<PublishResult> = (privateToken) => {
+export const publishReport: (fixture: string, privateToken?: string) => Action<PublishResult> = (fixture, privateToken) => {
   return async () => {
     const headers = new Headers()
     if (privateToken) {
@@ -18,7 +18,7 @@ export const publishReport: (privateToken?: string) => Action<PublishResult> = (
 
     if (getResponse.ok && url) {
       const putUrl = getResponse.headers.get('Location') as string
-      const envelopes = readFileSync(path.join(import.meta.dirname, '..', 'fixtures', 'messages-valid.ndjson'), { encoding: 'utf-8' })
+      const envelopes = readFileSync(path.join(import.meta.dirname, '..', 'fixtures', fixture), { encoding: 'utf-8' })
       const putResponse = await fetch(putUrl, {
         method: 'PUT',
         body: envelopes,

features/fixtures/messages-omissions.ndjson

@@ -0,0 +1,12 @@
+{"meta":{"ci":{"buildNumber":"154666429","git":{"remote":"https://github.com/cucumber-ltd/shouty.rb.git","revision":"99684bcacf01d95875834d87903dcb072306c9ad"},"name":"GitHub Actions","url":"https://github.com/cucumber-ltd/shouty.rb/actions/runs/154666429"},"cpu":{"name":"x64"},"implementation":{"name":"fake-cucumber","version":"18.0.0"},"os":{"name":"darwin","version":"23.6.0"},"protocolVersion":"27.0.0","runtime":{"name":"node.js","version":"22.7.0"}}}
+{"source":{"data":"Feature: minimal\n  \n  Cucumber doesn't execute this markdown, but @cucumber/react renders it\n  \n  * This is\n  * a bullet\n  * list\n  \n  Scenario: cukes\n    Given I have 42 cukes in my belly\n","mediaType":"text/x.cucumber.gherkin+plain","uri":"samples/minimal/minimal.feature"}}
+{"gherkinDocument":{"comments":[],"feature":{"children":[{"scenario":{"description":"","id":"2","keyword":"Scenario","location":{"column":3,"line":9},"name":"cukes","steps":[{"id":"1","keyword":"Given ","keywordType":"Context","location":{"column":5,"line":10},"text":"I have 42 cukes in my belly"}],"tags":[]}}],"description":"  Cucumber doesn't execute this markdown, but @cucumber/react renders it\n  \n  * This is\n  * a bullet\n  * list","keyword":"Feature","language":"en","location":{"column":1,"line":1},"name":"minimal","tags":[]},"uri":"samples/minimal/minimal.feature"}}
+{"pickle":{"astNodeIds":["2"],"id":"4","language":"en","name":"cukes","steps":[{"astNodeIds":["1"],"id":"3","text":"I have 42 cukes in my belly","type":"Context"}],"tags":[],"uri":"samples/minimal/minimal.feature"}}
+{"stepDefinition":{"id":"0","pattern":{"source":"I have {int} cukes in my belly","type":"CUCUMBER_EXPRESSION"},"sourceReference":{"location":{"line":3},"uri":"samples/minimal/minimal.feature.ts"}}}
+{"testRunStarted":{"id":"5","timestamp":{"seconds":0}}}
+{"testCase":{"id":"7","pickleId":"4","testRunStartedId":"5","testSteps":[{"id":"6","pickleStepId":"3","stepDefinitionIds":["0"],"stepMatchArgumentsLists":[{"stepMatchArguments":[{"group":{"children":[],"start":7,"value":"42"},"parameterTypeName":"int"}]}]}]}}
+{"testCaseStarted":{"attempt":0,"id":"8","testCaseId":"7","timestamp":{"nanos":1000000,"seconds":0}}}
+{"testStepStarted":{"testCaseStartedId":"8","testStepId":"6","timestamp":{"nanos":2000000,"seconds":0}}}
+{"testStepFinished":{"testCaseStartedId":"8","testStepId":"6","testStepResult":{"duration":{"nanos":1000000,"seconds":0},"status":"PASSED"},"timestamp":{"nanos":3000000,"seconds":0}}}
+{"testCaseFinished":{"testCaseStartedId":"8","timestamp":{"nanos":4000000,"seconds":0},"willBeRetried":false}}
+{"testRunFinished":{"success":true,"testRunStartedId":"5","timestamp":{"nanos":5000000,"seconds":0}}}

features/publishing.feature

@@ -10,3 +10,9 @@ Feature: Publishing
     And Garrett shares their link with Hannah
     When Hannah views the shared report
     Then Hannah should see the test results
+
+  Scenario: Report still renders with fields omitted from messages
+    Given a Cucumber implementation that omits some fields
+    When Ira publishes a report
+    And Ira views the report they just published
+    Then Ira should see their test results

features/steps/steps.mts

@@ -13,6 +13,10 @@ import { wasNotFound } from '../actions/wasNotFound.mjs'
 import { navigateToSite } from '../actions/navigateToSite.mjs'
 import { canSeeSample } from '../actions/canSeeSample.mjs'
 
+Given('a Cucumber implementation that omits some fields', async (t) => {
+  t.world.messagesFixture = 'messages-omissions.ndjson'
+})
+
 Given('{actor} has a private token', async (t, actor: Actor) => {
   actor.remember('privateToken', crypto.randomBytes(16).toString('hex'));
 })
@@ -26,7 +30,7 @@ Given('a report previously published by {actor} has been deleted', async (t, act
 })
 
 When('{actor} publishes a report', async (t, actor: Actor) => {
-  const publishResult = await actor.attemptsTo(publishReport(actor.recall('privateToken')))
+  const publishResult = await actor.attemptsTo(publishReport(t.world.messagesFixture, actor.recall('privateToken')))
   actor.remember('publishResult', publishResult)
   t.world.publishResults.push(publishResult)
 })

features/support/CustomWorld.mts

@@ -6,6 +6,7 @@ import { PublishResult } from '../actions/types'
 export class CustomWorld {
   private readonly actorLookup = new ActorLookup()
   private browser: Browser | undefined
+  public messagesFixture = 'messages-valid.ndjson'
   public publishResults: Array<PublishResult> = []
 
   public findOrCreateActor(actorName: string): Actor {

src/hooks/useEnvelopes.ts

@@ -1,5 +1,5 @@
 import { useQuery } from '@tanstack/react-query'
-import { Envelope } from '@cucumber/messages'
+import { Envelope, parseEnvelope } from '@cucumber/messages'
 
 export function useEnvelopes(id: string, getUrl: string) {
   return useQuery({
@@ -10,7 +10,7 @@ export function useEnvelopes(id: string, getUrl: string) {
         throw new Error('Failed to fetch envelopes', { cause: response })
       }
       const raw = await response.text()
-      return raw.trim().split('\n').map(s => JSON.parse(s) as Envelope)
+      return raw.trim().split('\n').map(s => parseEnvelope(s))
     },
     meta: {
       envelopes: true