Add clock_test.go (help oz#56)

clock_test.go

@@ -0,0 +1,61 @@
+/**
+ * This file is part of tz.
+ *
+ * tz is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * tz is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with tz.  If not, see <https://www.gnu.org/licenses/>.
+ **/
+package main
+
+import (
+	"testing"
+	"time"
+)
+
+func TestNewClockNow(t *testing.T) {
+	start := time.Now()
+	clock := NewClockNow()
+	if clock.t.Compare(start) < 0 {
+		t.Errorf("Unexpected old time from NewClockNow(): %v", clock.t.Format(time.RFC3339))
+	}
+	if !clock.isRealTime {
+		t.Error("NewClockNow() wasn’t real time")
+	}
+}
+
+func TestClockTime(t *testing.T) {
+	epoch, err := time.Parse(time.RFC3339, "1970-01-01T01:03:05Z")
+	if err != nil {
+		t.Fatalf("Could not parse test epoch")
+	}
+	clock := NewClockTime(epoch)
+	if clock.t.Compare(epoch) != 0 {
+		t.Errorf("Unexpected time from NewClockTime(epoch): %v", clock.t.Format(time.RFC3339))
+	}
+	if clock.isRealTime {
+		t.Error("NewClockTime() shouldn’t be real time")
+	}
+}
+
+func TestClockUnixTimestamp(t *testing.T) {
+	epoch, err := time.Parse(time.RFC3339, "1970-01-01T00:00:01Z")
+	if err != nil {
+		t.Fatalf("Could not parse test epoch")
+	}
+	clock := NewClockUnixTimestamp(1)
+	if clock.t.Compare(epoch) != 0 {
+		t.Errorf("Unexpected time from NewClockUnixTimestamp(1): %v", clock.t.Format(time.RFC3339))
+	}
+	if clock.isRealTime {
+		t.Error("NewClockUnixTimestamp() shouldn’t be real time")
+	}
+}