diff --git a/SwiftShellTests/Scripts/exitswhenopeningnon-existentfile.swift b/SwiftShellTests/Scripts/exitswhenopeningnon-existentfile.swift
index 9f26922..3f0cbb3 100755
--- a/SwiftShellTests/Scripts/exitswhenopeningnon-existentfile.swift
+++ b/SwiftShellTests/Scripts/exitswhenopeningnon-existentfile.swift
@@ -2,5 +2,5 @@
 
 import SwiftShell
 
-let file = open("file which does not exist")
+try! runAndPrint("/bin/cat", "file which does not exist")
 print("this is not printed, the script has exited")
diff --git a/SwiftShellTests/Scripts/print_linenumbers.swift b/SwiftShellTests/Scripts/print_linenumbers.swift
index 64be275..48b5f1b 100755
--- a/SwiftShellTests/Scripts/print_linenumbers.swift
+++ b/SwiftShellTests/Scripts/print_linenumbers.swift
@@ -2,13 +2,10 @@
 
 import SwiftShell
 
-/*
-var i = 1
-for line in standardinput.lines() {
-	print("line \(i++): ")
-	println(line)
-}
-*/
+let result = main.stdin.read().characters.split("\n")
+	.enumerate().map { (linenr,line) in "line " + String(linenr+1) + ": " + String(line) }
 
-var i = 1
-standardinput.lines() |> map {line in "line \(i++): \(line)\n"} |>> standardoutput
+//  Swift demands we split this up.
+main.stdout.write(result.joinWithSeparator("\n")) 
+
+// TODO:  use .writeTo(&main.stdout)
diff --git a/SwiftShellTests/Scripts/runtests.bash b/SwiftShellTests/Scripts/runtests.bash
index 6da7c7f..ba37f97 100755
--- a/SwiftShellTests/Scripts/runtests.bash
+++ b/SwiftShellTests/Scripts/runtests.bash
@@ -19,8 +19,8 @@ export DYLD_FRAMEWORK_PATH=$PROJECT_ROOT/build/Release/
 
 # Be aware the “assert” command does not check standard error output or exit code.
 
-assert "./print_arguments.swift 1 2" "[./print_arguments.swift, 1, 2]"
-assert_raises "./exitswhenopeningnon-existentfile.swift" 1
+assert "./print_name_and_args.swift 1 2" "print_name_and_args.swift \"1\" \"2\""
+assert_raises "./exitswhenopeningnon-existentfile.swift" 132
 assert "cat onetwothree.txt | ./print_linenumbers.swift" "line 1: one\nline 2: two\nline 3: three"
 assert "./stream_out.swift" "       3"
 assert "./callswiftscriptfromswift.swift" "line 1: one\nline 2: two\nline 3: three"