Fix dart-json not stripping cwd from suite paths

__tests__/__outputs__/dart-json.md

@@ -3,9 +3,9 @@
 **6** tests were completed in **3.760s** with **1** passed, **4** failed and **1** skipped.
 |Test suite|Passed|Failed|Skipped|Time|
 |:---|---:|---:|---:|---:|
-|[test\main_test.dart](#r0s0)|1✔️|3❌||74ms|
-|[test\second_test.dart](#r0s1)||1❌|1✖️|51ms|
-### <a id="user-content-r0s0" href="#r0s0">test\main_test.dart</a> ❌
+|[test/main_test.dart](#r0s0)|1✔️|3❌||74ms|
+|[test/second_test.dart](#r0s1)||1❌|1✖️|51ms|
+### <a id="user-content-r0s0" href="#r0s0">test/main_test.dart</a> ❌
 **4** tests were completed in **74ms** with **1** passed, **3** failed and **0** skipped.
 
 **Test 1**
@@ -23,7 +23,7 @@
 |Result|Test|Time|
 |:---:|:---|---:|
 |❌|Test 2 Exception in test|12ms|
-### <a id="user-content-r0s1" href="#r0s1">test\second_test.dart</a> ❌
+### <a id="user-content-r0s1" href="#r0s1">test/second_test.dart</a> ❌
 **2** tests were completed in **51ms** with **0** passed, **1** failed and **1** skipped.
 
 |Result|Test|Time|

__tests__/__snapshots__/dart-json.test.ts.snap

@@ -68,7 +68,7 @@ test\\\\main_test.dart 17:9        main.<fn>.<fn>.<fn>
           ],
         },
       ],
-      "name": "test\\\\main_test.dart",
+      "name": "test/main_test.dart",
       "totalTime": undefined,
     },
     TestSuiteResult {
@@ -97,7 +97,7 @@ test\\\\main_test.dart 17:9        main.<fn>.<fn>.<fn>
           ],
         },
       ],
-      "name": "test\\\\second_test.dart",
+      "name": "test/second_test.dart",
       "totalTime": undefined,
     },
   ],

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

@@ -87,7 +87,7 @@ export class DartJsonParser implements TestParser {
           return JSON.parse(str)
         } catch (e) {
           const col = e.columnNumber !== undefined ? `:${e.columnNumber}` : ''
-          new Error(`Invalid JSON at ${path}:${i + 1}${col}\n\n${e}`)
+          throw new Error(`Invalid JSON at ${path}:${i + 1}${col}\n\n${e}`)
         }
       })
       .filter(evt => evt != null) as ReportEvent[]
@@ -123,7 +123,7 @@ export class DartJsonParser implements TestParser {
 
   private getTestRunResult(tr: TestRun): TestRunResult {
     const suites = tr.suites.map(s => {
-      return new TestSuiteResult(s.suite.path, this.getGroups(s))
+      return new TestSuiteResult(this.getRelativePath(s.suite.path), this.getGroups(s))
     })
 
     return new TestRunResult(tr.path, suites, tr.time)
@@ -135,36 +135,35 @@ export class DartJsonParser implements TestParser {
 
     return groups.map(group => {
       group.tests.sort((a, b) => (a.testStart.test.line ?? 0) - (b.testStart.test.line ?? 0))
-      const tests = group.tests.map(t => this.getTest(t))
+      const tests = group.tests.map(tc => {
+        const error = this.getError(suite, tc)
+        return new TestCaseResult(tc.testStart.test.name, tc.result, tc.time, error)
+      })
       return new TestGroupResult(group.group.name, tests)
     })
   }
 
-  private getTest(tc: TestCase): TestCaseResult {
-    const error = this.getError(tc)
-    return new TestCaseResult(tc.testStart.test.name, tc.result, tc.time, error)
-  }
-
-  private getError(test: TestCase): TestCaseError | undefined {
+  private getError(testSuite: TestSuite, test: TestCase): TestCaseError | undefined {
     if (!this.options.parseErrors || !test.error) {
       return undefined
     }
 
-    const {workDir, trackedFiles} = this.options
+    const {trackedFiles} = this.options
     const message = test.error?.error ?? ''
     const stackTrace = test.error?.stackTrace ?? ''
     const src = this.exceptionThrowSource(stackTrace, trackedFiles)
     let path
     let line
 
     if (src !== undefined) {
-      ;(path = src.path), (line = src.line)
+      path = src.path
+      line = src.line
     } else {
-      const testStartPath = this.getRelativePathFromUrl(test.testStart.test.url ?? '', workDir)
+      const testStartPath = this.getRelativePath(testSuite.suite.path)
       if (trackedFiles.includes(testStartPath)) {
         path = testStartPath
+        line = test.testStart.test.root_line ?? test.testStart.test.line ?? undefined
       }
-      line = test.testStart.test.line ?? undefined
     }
 
     return {
@@ -195,14 +194,11 @@ export class DartJsonParser implements TestParser {
     }
   }
 
-  private getRelativePathFromUrl(file: string, workDir: string): string {
-    const prefix = 'file:///'
-    if (file.startsWith(prefix)) {
-      file = file.substr(prefix.length)
-    }
-    if (file.startsWith(workDir)) {
-      file = file.substr(workDir.length)
+  private getRelativePath(path: string): string {
+    const {workDir} = this.options
+    if (path.startsWith(workDir)) {
+      path = path.substr(workDir.length)
     }
-    return file
+    return normalizeFilePath(path)
   }
 }