Add wrapper test

tests/tast2.nim

@@ -12,7 +12,7 @@ when defined(HEADER):
   cDefine("HEADER")
   const
     flags = " -H -d"
-    pHeader = @["header:" & path]
+    pHeader = @["header:" & path.replace("\\", "/")]
     pHeaderImp = @["importc"] & pHeader
 else:
   const

tests/wrappers.nims

@@ -0,0 +1,15 @@
+import os
+
+let
+  wrappers = @["genotrance/nimarchive", "genotrance/nimgit2"]
+
+rmDir("wrappers")
+mkDir("wrappers")
+withDir("wrappers"):
+  for wrapper in wrappers:
+    let
+      name = wrapper.extractFilename()
+    exec "git clone https://github.com/" & wrapper
+    withDir(name):
+      exec "nimble install -d"
+      exec "nimble test"