fix small bug, add tests for os.pathsep

Author: glaukiol1

os/os.module.go

@@ -36,7 +36,7 @@ func getname() py.String {
 
 // getpathsep returns the seperator used in $PATH. This is ';' for windows and ':' for posix
 func getpathsep() py.String {
-	if runtime.GOOS != "windows" {
+	if runtime.GOOS == "windows" {
 		return py.String(";")
 	}
 	return py.String(":")

os/os.test.py

@@ -178,6 +178,16 @@ def _fail(test_name):
     _fail("os.sep corresponding with os.name")
     failed+=1
 
+if os.pathsep == ":" and os.name == "posix":
+    _pass('os.pathsep == ":" and os.name == "posix"')
+    passed_tests+=1
+elif os.pathsep == ";" and os.name == "nt":
+    _pass('os.pathsep == ";" and os.name == "nt"')
+    passed_tests+=1
+else:
+    _fail("os.pathsep corresponding with os.name")
+    failed+=1
+
 print()
 print(bcolors.ENDC+bcolors.BOLD+bcolors.HEADER+"Please check if $HOME will be outputted...")
 print(bcolors.ENDC)