Add initial version of dart-json parser

src/parsers/dart-json/dart-json-parser.ts

@@ -0,0 +1,155 @@
+import {ParseOptions, TestResult} from '../test-parser'
+
+import {Icon} from '../../utils/markdown-utils'
+
+import {
+  ReportEvent,
+  Suite,
+  Group,
+  TestStartEvent,
+  TestDoneEvent,
+  ErrorEvent,
+  isSuiteEvent,
+  isGroupEvent,
+  isTestStartEvent,
+  isTestDoneEvent,
+  isErrorEvent,
+  isDoneEvent
+} from './dart-json-types'
+
+class TestRun {
+  constructor(readonly suites: TestSuite[], readonly success: boolean, readonly time: number) {}
+  get count(): number {
+    return Object.values(this.suites).reduce((sum, g) => sum + g.count, 0)
+  }
+  get passed(): number {
+    return Object.values(this.suites).reduce((sum, g) => sum + g.passed, 0)
+  }
+  get failed(): number {
+    return Object.values(this.suites).reduce((sum, g) => sum + g.failed, 0)
+  }
+  get skipped(): number {
+    return Object.values(this.suites).reduce((sum, g) => sum + g.skipped, 0)
+  }
+}
+
+class TestSuite {
+  constructor(readonly suite: Suite) {}
+  tests = new TestGroup()
+  groups: {[id: number]: TestGroup} = {}
+  get count(): number {
+    return this.tests.count + Object.values(this.groups).reduce((sum, g) => sum + g.count, 0)
+  }
+  get passed(): number {
+    return this.tests.passed + Object.values(this.groups).reduce((sum, g) => sum + g.passed, 0)
+  }
+  get failed(): number {
+    return this.tests.failed + Object.values(this.groups).reduce((sum, g) => sum + g.failed, 0)
+  }
+  get skipped(): number {
+    return this.tests.skipped + Object.values(this.groups).reduce((sum, g) => sum + g.skipped, 0)
+  }
+  get time(): number {
+    return this.tests.time + Object.values(this.groups).reduce((sum, g) => sum + g.time, 0)
+  }
+}
+
+class TestGroup {
+  constructor(readonly group?: Group) {}
+  tests: TestSuiteTest[] = []
+  get count(): number {
+    return this.tests.length
+  }
+  get passed(): number {
+    return this.tests.reduce((sum, t) => (t.isPassed ? sum + 1 : sum), 0)
+  }
+  get failed(): number {
+    return this.tests.reduce((sum, t) => (t.isFailed ? sum + 1 : sum), 0)
+  }
+  get skipped(): number {
+    return this.tests.reduce((sum, t) => (t.isSkipped ? sum + 1 : sum), 0)
+  }
+  get time(): number {
+    return this.tests.reduce((sum, t) => sum + t.time, 0)
+  }
+}
+
+class TestSuiteTest {
+  constructor(readonly testStart: TestStartEvent) {
+    this.groupId = testStart.test.groupIDs[testStart.test.groupIDs.length - 1]
+  }
+  readonly groupId: number
+  testDone?: TestDoneEvent
+  error?: ErrorEvent
+  get isPassed(): boolean {
+    return this.testDone?.result === 'success' && !this.testDone?.skipped
+  }
+  get isFailed(): boolean {
+    return this.testDone?.result !== 'success'
+  }
+  get isSkipped(): boolean {
+    return this.testDone?.skipped === true
+  }
+  get time(): number {
+    return this.testDone !== undefined ? this.testDone.time - this.testStart.time : 0
+  }
+}
+
+export async function parseDartJson(content: string, options: ParseOptions): Promise<TestResult> {
+  const testRun = getTestRun(content)
+  const icon = testRun.success ? Icon.success : Icon.fail
+
+  return {
+    success: testRun.success,
+    output: {
+      title: `${options.name.trim()} ${icon}`,
+      summary: getSummary(testRun),
+      annotations: options.annotations ? [] : undefined
+    }
+  }
+}
+
+function getTestRun(content: string): TestRun {
+  const lines = content.split(/\n\r?/g).filter(line => line !== '')
+  const events = lines.map(str => JSON.parse(str)) as ReportEvent[]
+
+  let success = false
+  let totalTime = 0
+  const suites: {[id: number]: TestSuite} = {}
+  const tests: {[id: number]: TestSuiteTest} = {}
+
+  for (const evt of events) {
+    if (isSuiteEvent(evt)) {
+      suites[evt.suite.id] = new TestSuite(evt.suite)
+    } else if (isGroupEvent(evt)) {
+      suites[evt.group.suiteID].groups[evt.group.id] = new TestGroup(evt.group)
+    } else if (isTestStartEvent(evt) && evt.test.url !== null) {
+      const test: TestSuiteTest = new TestSuiteTest(evt)
+      const suite = suites[evt.test.suiteID]
+      const group =
+        evt.test.groupIDs.length === 0 ? suite.tests : suite.groups[evt.test.groupIDs[evt.test.groupIDs.length - 1]]
+      group.tests.push(test)
+      tests[evt.test.id] = test
+    } else if (isTestDoneEvent(evt) && !evt.hidden) {
+      tests[evt.testID].testDone = evt
+    } else if (isErrorEvent(evt)) {
+      tests[evt.testID].error = evt
+    } else if (isDoneEvent(evt)) {
+      success = evt.success
+      totalTime = evt.time
+    }
+  }
+
+  return new TestRun(Object.values(suites), success, totalTime)
+}
+
+function getSummary(testRun: TestRun): string {
+  const tests = testRun.count
+  const time = `${(testRun.time / 1000).toFixed(3)}s`
+  const passed = testRun.passed
+  const skipped = testRun.skipped
+  const failed = testRun.failed
+
+  const headingLine = `**${tests}** tests were completed in **${time}** with **${passed}** passed, **${skipped}** skipped and **${failed}** failed.`
+  return `${headingLine}`
+}

src/parsers/test-parser.ts

@@ -16,6 +16,7 @@ export type Annotation = {
 export type ParseTestResult = (content: string, options: ParseOptions) => Promise<TestResult>
 
 export interface ParseOptions {
+  name: string
   annotations: boolean
   workDir: string
   trackedFiles: string[]