trying to the OSX test to pass on Travis, it passes locally

Signed-off-by: avaid96 <avaid1996@gmail.com>

osxkeychain/osxkeychain_darwin_test.go

@@ -34,15 +34,15 @@ func TestOSXKeychainHelper(t *testing.T) {
 		t.Fatalf("expected %s, got %s\n", "foobarbaz", secret)
 	}
 
-	if err := helper.Delete(creds.ServerURL); err != nil {
-		t.Fatal(err)
-	}
-	helper.Add(creds)
-	defer helper.Delete(creds.ServerURL)
 	paths, accts, err := helper.List()
 	if err != nil || len(paths) == 0 || len(accts) == 0 {
 		t.Fatal(err)
 	}
+
+	if err := helper.Delete(creds.ServerURL); err != nil {
+		t.Fatal(err)
+	}
+
 	helper.Add(creds1)
 	defer helper.Delete(creds1.ServerURL)
 	newpaths, newaccts, err := helper.List()

wincred/wincred_windows.go

@@ -37,3 +37,11 @@ func (h Wincred) Get(serverURL string) (string, string, error) {
 	}
 	return g.UserName, string(g.CredentialBlob), nil
 }
+
+func (h Wincred) List() ([]string, []string, error) {
+	accts, paths, err := winc.List()
+	if err != nil {
+		return err
+	}
+	return paths, accts, nil
+}