Fix tester on Windows.

tests/tester.nim

@@ -15,35 +15,6 @@ template cd*(dir: string, body: stmt) =
   body
   setCurrentDir(lastDir)
 
-proc execCmdEx2*(command: string, options: set[ProcessOption] = {
-                poUsePath}): tuple[
-                output: TaintedString,
-                error: TaintedString,
-                exitCode: int] {.tags: [ExecIOEffect, ReadIOEffect], gcsafe.} =
-  ## A slightly altered version of osproc.execCmdEx
-  ## Runs the `command` and returns the standard output, error output, and
-  ## exit code.
-  var p = startProcess(command = command, options = options + {poEvalCommand})
-  var outp = outputStream(p)
-  var errp = errorStream(p)
-  result = (TaintedString"", TaintedString"", -1)
-  var outLine = newStringOfCap(120).TaintedString
-  var errLine = newStringOfCap(120).TaintedString
-  while true:
-    var checkForExit = true
-    if outp.readLine(outLine):
-      result[0].string.add(outLine.string)
-      result[0].string.add("\n")
-      checkForExit = false
-    if errp.readLine(errLine):
-      result[1].string.add(errLine.string)
-      result[1].string.add("\n")
-      checkForExit = false
-    if checkForExit:
-      result[2] = peekExitCode(p)
-      if result[2] != -1: break
-  close(p)
-
 proc processOutput(output: string): seq[string] =
   output.strip.splitLines().filter((x: string) => (x.len > 0))
 
@@ -53,11 +24,11 @@ test "can install packagebin2":
       QuitSuccess
 
 test "can reject same version dependencies":
-  let (outp, errp, exitCode) = execCmdEx2(path &
+  let (outp, exitCode) = execCmdEx(path &
       " install -y https://github.com/nimble-test/packagebin.git")
   # We look at the error output here to avoid out-of-order problems caused by
   # stderr output being generated and flushed without first flushing stdout
-  let ls = errp.strip.splitLines()
+  let ls = outp.strip.splitLines()
   check exitCode != QuitSuccess
   check ls[ls.len-1] == "Error: unhandled exception: Cannot satisfy the " &
       "dependency on PackageA 0.2.0 and PackageA 0.5.0 [NimbleError]"
@@ -79,9 +50,9 @@ test "issue #27":
 
 test "can uninstall":
   block:
-    let (outp, errp, exitCode) = execCmdEx2(path & " uninstall -y issue27b")
+    let (outp, exitCode) = execCmdEx(path & " uninstall -y issue27b")
     # let ls = outp.processOutput()
-    let ls = errp.strip.splitLines()
+    let ls = outp.strip.splitLines()
     check exitCode != QuitSuccess
     check ls[ls.len-1] == "  Cannot uninstall issue27b (0.1.0) because " &
                           "issue27a (0.1.0) depends on it [NimbleError]"
@@ -92,9 +63,9 @@ test "can uninstall":
   # Remove Package*
   check execCmdEx(path & " uninstall -y PackageA@0.5").exitCode == QuitSuccess
 
-  let (outp, errp, exitCode) = execCmdEx2(path & " uninstall -y PackageA")
+  let (outp, exitCode) = execCmdEx(path & " uninstall -y PackageA")
   check exitCode != QuitSuccess
-  let ls = errp.processOutput()
+  let ls = outp.processOutput()
   check ls[ls.len-2].startsWith("  Cannot uninstall PackageA ")
   check ls[ls.len-1].startsWith("  Cannot uninstall PackageA ")
   check execCmdEx(path & " uninstall -y PackageBin2").exitCode == QuitSuccess