govis: add integration tests

Signed-off-by: Aleksa Sarai <asarai@suse.de>

govis_test.go

@@ -0,0 +1,52 @@
+/*
+ * govis: unicode aware vis(3) encoding implementation
+ * Copyright (C) 2017 SUSE LLC.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package govis
+
+import (
+	"testing"
+)
+
+const DefaultVisFlags = VisWhite | VisOctal | VisGlob
+
+func TestVisUnvis(t *testing.T) {
+	// Round-trip testing.
+	for _, test := range []string{
+		"",
+		"this.is.a.normal_string",
+		"AC_Raíz_Certicámara_S.A..pem",
+		"NetLock_Arany_=Class_Gold=_Főtanúsítvány.pem",
+		"TÜBİTAK_UEKAE_Kök_Sertifika_Hizmet_Sağlayıcısı_-_Sürüm_3.pem",
+		"hello world [ this string needs=enco ding! ]",
+		"even \n more encoding necessary\a\a ",
+		"\024 <-- some more weird characters --> 你好，世界",
+	} {
+		enc, err := Vis(test, DefaultVisFlags)
+		if err != nil {
+			t.Errorf("unexpected error doing vis(%q): %s", test, err)
+			continue
+		}
+		dec, err := Unvis(enc, DefaultVisFlags)
+		if err != nil {
+			t.Errorf("unexpected error doing unvis(%q): %s", enc, err)
+			continue
+		}
+		if dec != test {
+			t.Errorf("roundtrip failed: unvis(vis(%q) = %q) = %q", test, enc, dec)
+		}
+	}
+}