Fix path in timeout test

Author: liufengyun

compiler/test/dotty/tools/vulpix/FileDiff.scala

@@ -20,24 +20,26 @@ object FileDiff {
       if (!(new File(checkFile)).exists) Nil
       else Using(Source.fromFile(checkFile, "UTF-8"))(_.getLines().toList).get
 
-    // handle check file path mismatch on windows
-    def lineMatch(actual: String, expect: String): Boolean = {
-      val actual1 = actual.stripLineEnd
-      val expect1  = expect.stripLineEnd
-      actual1 == expect1 || File.separatorChar == '\\' && actual1.replace('\\', '/') == expect1
-    }
-
-    def linesMatch =
-      outputLines.length == checkLines.length &&
-      outputLines.lazyZip(checkLines).forall(lineMatch)
-
-    if (!linesMatch) Some(
+    if (!matches(outputLines, checkLines)) Some(
       s"""|Output from '$sourceTitle' did not match check file. Actual output:
           |${outputLines.mkString(EOL)}
           |""".stripMargin + "\n")
     else None
   }
 
+  def matches(actual: String, expect: String): Boolean = {
+      val actual1 = actual.stripLineEnd
+      val expect1  = expect.stripLineEnd
+
+      // handle check file path mismatch on windows
+      actual1 == expect1 || File.separatorChar == '\\' && actual1.replace('\\', '/') == expect1
+  }
+
+  def matches(actual: Seq[String], expect: Seq[String]): Boolean = {
+    actual.length == expect.length
+    && actual.lazyZip(expect).forall(matches)
+  }
+
   def dump(path: String, content: Seq[String]): Unit = {
     val outFile = dotty.tools.io.File(path)
     outFile.writeAll(content.mkString("", EOL, EOL))

compiler/test/dotty/tools/vulpix/VulpixUnitTests.scala

@@ -91,14 +91,15 @@ class VulpixUnitTests extends ParallelTesting {
     }
 
   @Test def runTimeout: Unit = {
-    val fileName = s"tests${JFile.separatorChar}vulpix-tests${JFile.separatorChar}unit${JFile.separatorChar}timeout.scala"
+    val fileName = s"tests/vulpix-tests/unit/timeout.scala"
     try {
       compileFile(fileName, defaultOptions).checkRuns()
       fail()
     } catch {
       case ae: AssertionError =>
-        assertEquals(s"Run test failed, but should not, reasons:\n\n  - encountered 1 test failures(s)  - test '${fileName}' timed out",
-          ae.getMessage)
+        val expect = """(?m).*test '.+' timed out.*"""
+        val actual = ae.getMessage.linesIterator.toList.last
+        assert(actual.matches(expect), "actual = " + actual)
     }
   }
 }