Adding unit tests for ttlExpired.

pkg/daemonsetlock/daemonsetlock_test.go

@@ -0,0 +1,28 @@
+package daemonsetlock
+
+import (
+	"testing"
+	"time"
+)
+
+func TestTtlExpired(t *testing.T) {
+	d := time.Date(2020, 05, 05, 14, 15, 0, 0, time.UTC)
+	second, _ := time.ParseDuration("1s")
+	zero, _ := time.ParseDuration("0m")
+
+	tests := []struct {
+		created time.Time
+		ttl     time.Duration
+		result  bool
+	}{
+		{d, second, true},
+		{time.Now(), second, false},
+		{d, zero, false},
+	}
+
+	for i, tst := range tests {
+		if ttlExpired(tst.created, tst.ttl) != tst.result {
+			t.Errorf("Test %d failed, expected %v but got %v", i, tst.result, !tst.result)
+		}
+	}
+}