Merge 58382da825 into c883ae9738

__tests__/report/get-report.test.ts

@@ -0,0 +1,83 @@
+import {
+  DEFAULT_OPTIONS,
+  getByteLength,
+  getReport,
+  MAX_ACTIONS_SUMMARY_LENGTH,
+  trimReport
+} from '../../src/report/get-report'
+import {TestCaseResult, TestGroupResult, TestRunResult, TestSuiteResult} from '../../src/test-results'
+
+// space reserved for closing backticks and newlines
+const ALWAYS_RESERVED_SPACE = 5
+
+describe('trimReport', () => {
+  const TEST_LINE_CHAR = '----'
+  const TEST_LINE_LEN = getByteLength(`${TEST_LINE_CHAR}\n`)
+  const MAX_LEN_REPORT: string[] = []
+  for (let i = 0; i < MAX_ACTIONS_SUMMARY_LENGTH / 5; i++) {
+    MAX_LEN_REPORT.push(TEST_LINE_CHAR)
+  }
+
+  it('trims reports that exceed Github limits', () => {
+    const trimmed = trimReport(MAX_LEN_REPORT, 0, DEFAULT_OPTIONS)
+    const trimmedLength = getByteLength(trimmed)
+
+    expect(trimmed.endsWith('has been trimmed**')).toBe(true) // assert was trimmed
+    expectToBeWithinRangeOfCeiling(trimmedLength, MAX_ACTIONS_SUMMARY_LENGTH - ALWAYS_RESERVED_SPACE, TEST_LINE_LEN)
+  })
+
+  it('reserves space for prepended string', () => {
+    const prependStringLen = 10
+    const trimmed = trimReport(MAX_LEN_REPORT, prependStringLen, DEFAULT_OPTIONS)
+    const trimmedLength = getByteLength(trimmed)
+
+    expect(trimmed.endsWith('has been trimmed**')).toBe(true) // assert was trimmed
+    expectToBeWithinRangeOfCeiling(
+      trimmedLength,
+      MAX_ACTIONS_SUMMARY_LENGTH - ALWAYS_RESERVED_SPACE - prependStringLen,
+      TEST_LINE_LEN
+    )
+  })
+})
+
+describe('getReport', () => {
+  const testCases: TestCaseResult[] = []
+  const testCaseString = '-------------------------' // 25 chars long
+  const FAILURE_ROW_LEN = getByteLength(`  ❌ ${testCaseString}\n`)
+  for (let i = 0; i < MAX_ACTIONS_SUMMARY_LENGTH / 30; i++) {
+    testCases.push(new TestCaseResult(testCaseString, 'failed', 1))
+  }
+  const MAX_LEN_RESULT = [
+    new TestRunResult('run', [new TestSuiteResult('suite', [new TestGroupResult('group', testCases)])])
+  ]
+
+  it('trims reports that exceed Github limits', () => {
+    const trimmed = getReport(MAX_LEN_RESULT, DEFAULT_OPTIONS)
+    const trimmedLength = getByteLength(trimmed)
+
+    expect(trimmed.endsWith('has been trimmed**')).toBe(true) // assert was trimmed
+    expectToBeWithinRangeOfCeiling(trimmedLength, MAX_ACTIONS_SUMMARY_LENGTH - ALWAYS_RESERVED_SPACE, FAILURE_ROW_LEN)
+  })
+
+  it('reserves space for prepended string', () => {
+    const prependString = `1 passed, 1 failed and 1 skipped`
+    const prependStringLen = getByteLength(prependString)
+    const trimmed = getReport(MAX_LEN_RESULT, DEFAULT_OPTIONS, prependString)
+    const trimmedLength = getByteLength(trimmed)
+
+    expect(trimmed.endsWith('has been trimmed**')).toBe(true) // assert was trimmed
+    expectToBeWithinRangeOfCeiling(
+      trimmedLength,
+      MAX_ACTIONS_SUMMARY_LENGTH - ALWAYS_RESERVED_SPACE - prependStringLen,
+      FAILURE_ROW_LEN
+    )
+  })
+})
+
+/**
+ * Asserts a subject number is between a ceiling value and a range below it (inclusive)
+ */
+function expectToBeWithinRangeOfCeiling(subject: number, ceiling: number, range: number): void {
+  expect(subject).toBeLessThanOrEqual(ceiling)
+  expect(subject).toBeGreaterThanOrEqual(ceiling - range)
+}

src/main.ts

@@ -175,19 +175,24 @@ class TestReporter {
 
     let baseUrl = ''
     if (this.useActionsSummary) {
-      const summary = getReport(results, {
-        listSuites,
-        listTests,
-        baseUrl,
-        onlySummary,
-        useActionsSummary,
-        badgeTitle,
-        reportTitle
-      })
+      const summaryPrepend = `# ${shortSummary}\n`
+      const summary = getReport(
+        results,
+        {
+          listSuites,
+          listTests,
+          baseUrl,
+          onlySummary,
+          useActionsSummary,
+          badgeTitle,
+          reportTitle
+        },
+        summaryPrepend
+      )
 
       core.info('Summary content:')
       core.info(summary)
-      core.summary.addRaw(`# ${shortSummary}`)
+      core.summary.addRaw(summaryPrepend)
       await core.summary.addRaw(summary).write()
     } else {
       core.info(`Creating check run ${name}`)

src/report/get-report.ts

@@ -6,7 +6,7 @@ import {getFirstNonEmptyLine} from '../utils/parse-utils'
 import {slug} from '../utils/slugger'
 
 const MAX_REPORT_LENGTH = 65535
-const MAX_ACTIONS_SUMMARY_LENGTH = 1048576
+export const MAX_ACTIONS_SUMMARY_LENGTH = 1048576
 
 export interface ReportOptions {
   listSuites: 'all' | 'failed' | 'none'
@@ -28,16 +28,21 @@ export const DEFAULT_OPTIONS: ReportOptions = {
   reportTitle: ''
 }
 
-export function getReport(results: TestRunResult[], options: ReportOptions = DEFAULT_OPTIONS): string {
+export function getReport(
+  results: TestRunResult[],
+  options: ReportOptions = DEFAULT_OPTIONS,
+  prependString?: string
+): string {
   core.info('Generating check run summary')
 
   applySort(results)
 
   const opts = {...options}
+  const prependStringLen = getByteLength(prependString || '')
   let lines = renderReport(results, opts)
   let report = lines.join('\n')
 
-  if (getByteLength(report) <= getMaxReportLength(options)) {
+  if (getByteLength(report) + prependStringLen <= getMaxReportLength(options)) {
     return report
   }
 
@@ -46,24 +51,24 @@ export function getReport(results: TestRunResult[], options: ReportOptions = DEF
     opts.listTests = 'failed'
     lines = renderReport(results, opts)
     report = lines.join('\n')
-    if (getByteLength(report) <= getMaxReportLength(options)) {
+    if (getByteLength(report) + prependStringLen <= getMaxReportLength(options)) {
       return report
     }
   }
 
   core.warning(`Test report summary exceeded limit of ${getMaxReportLength(options)} bytes and will be trimmed`)
-  return trimReport(lines, options)
+  return trimReport(lines, prependStringLen, options)
 }
 
 function getMaxReportLength(options: ReportOptions = DEFAULT_OPTIONS): number {
   return options.useActionsSummary ? MAX_ACTIONS_SUMMARY_LENGTH : MAX_REPORT_LENGTH
 }
 
-function trimReport(lines: string[], options: ReportOptions): string {
+export function trimReport(lines: string[], prependStringLen: number, options: ReportOptions): string {
   const closingBlock = '```'
   const errorMsg = `**Report exceeded GitHub limit of ${getMaxReportLength(options)} bytes and has been trimmed**`
   const maxErrorMsgLength = closingBlock.length + errorMsg.length + 2
-  const maxReportLength = getMaxReportLength(options) - maxErrorMsgLength
+  const maxReportLength = getMaxReportLength(options) - maxErrorMsgLength - prependStringLen
 
   let reportLength = 0
   let codeBlock = false
@@ -97,7 +102,7 @@ function applySort(results: TestRunResult[]): void {
   }
 }
 
-function getByteLength(text: string): number {
+export function getByteLength(text: string): number {
   return Buffer.byteLength(text, 'utf8')
 }