init: pristine aerc 0.20.0 source

lib/iterator/iterator_test.go

@@ -0,0 +1,96 @@
+package iterator_test
+
+import (
+	"testing"
+
+	"git.sr.ht/~rjarry/aerc/lib/iterator"
+	"git.sr.ht/~rjarry/aerc/models"
+	"git.sr.ht/~rjarry/aerc/worker/types"
+)
+
+func toThreads(uids []models.UID) []*types.Thread {
+	threads := make([]*types.Thread, len(uids))
+	for i, u := range uids {
+		threads[i] = &types.Thread{Uid: u}
+	}
+	return threads
+}
+
+func TestIterator_DefaultFactory(t *testing.T) {
+	input := []models.UID{"1", "2", "3", "4", "5", "6", "7", "8", "9"}
+	want := []models.UID{"9", "8", "7", "6", "5", "4", "3", "2", "1"}
+
+	factory := iterator.NewFactory(false)
+	if factory == nil {
+		t.Errorf("could not create factory")
+	}
+	start, end := len(input)-1, 0
+	checkUids(t, factory, input, want, start, end)
+	checkThreads(t, factory, toThreads(input),
+		toThreads(want), start, end)
+}
+
+func TestIterator_ReverseFactory(t *testing.T) {
+	input := []models.UID{"1", "2", "3", "4", "5", "6", "7", "8", "9"}
+	want := []models.UID{"1", "2", "3", "4", "5", "6", "7", "8", "9"}
+
+	factory := iterator.NewFactory(true)
+	if factory == nil {
+		t.Errorf("could not create factory")
+	}
+
+	start, end := 0, len(input)-1
+	checkUids(t, factory, input, want, start, end)
+	checkThreads(t, factory, toThreads(input),
+		toThreads(want), start, end)
+}
+
+func checkUids(t *testing.T, factory iterator.Factory,
+	input []models.UID, want []models.UID, start, end int,
+) {
+	label := "uids"
+	got := make([]models.UID, 0)
+	iter := factory.NewIterator(input)
+	for iter.Next() {
+		got = append(got, iter.Value().(models.UID))
+	}
+	if len(got) != len(want) {
+		t.Errorf("%s: number of elements not correct", label)
+	}
+	for i, u := range want {
+		if got[i] != u {
+			t.Errorf("%s: order not correct", label)
+		}
+	}
+	if iter.StartIndex() != start {
+		t.Errorf("%s: start index not correct", label)
+	}
+	if iter.EndIndex() != end {
+		t.Errorf("%s: end index not correct", label)
+	}
+}
+
+func checkThreads(t *testing.T, factory iterator.Factory,
+	input []*types.Thread, want []*types.Thread, start, end int,
+) {
+	label := "threads"
+	got := make([]*types.Thread, 0)
+	iter := factory.NewIterator(input)
+	for iter.Next() {
+		got = append(got, iter.Value().(*types.Thread))
+	}
+	if len(got) != len(want) {
+		t.Errorf("%s: number of elements not correct", label)
+	}
+	for i, th := range want {
+		if got[i].Uid != th.Uid {
+			t.Errorf("%s: order not correct", label)
+		}
+	}
+	if iter.StartIndex() != start {
+		t.Errorf("%s: start index not correct", label)
+	}
+	if iter.EndIndex() != end {
+		t.Errorf("%s: end index not correct", label)
+	}
+}