Merge pull request #21097 from moiseev/test-error

moiseev · web-flow · commit 51b9c52c2355 · 2018-12-06T16:40:14.000-08:00
Make an StdlibUnitTest error message a bit more useful
diff --git a/stdlib/private/StdlibUnittest/StdlibUnittest.swift b/stdlib/private/StdlibUnittest/StdlibUnittest.swift
@@ -968,7 +968,7 @@ struct _ParentProcess {
             stderrEnd = true
           }
         default:
-          fatalError("unexpected message")
+          fatalError("unexpected message: \(controlMessage[1])")
         }
         line = line[line.startIndex..<index]
         if line.isEmpty {

Original file line number	Diff line number	Diff line change
`@@ -968,7 +968,7 @@ struct _ParentProcess {`
`968`	`968`	`stderrEnd = true`
`969`	`969`	`}`
`970`	`970`	`default:`
`971`		`- fatalError("unexpected message")`
	`971`	`+ fatalError("unexpected message: \(controlMessage[1])")`
`972`	`972`	`}`
`973`	`973`	`line = line[line.startIndex..<index]`
`974`	`974`	`if line.isEmpty {`