internal/priorityqueue: Add

1 files changed, 36 insertions, 0 deletions

diff --git a/internal/priorityqueue/queue_test.go b/internal/priorityqueue/queue_test.go
new file mode 100644
index 00000000..14ed1ff6
--- /dev/null
+++ b/internal/priorityqueue/queue_test.go
@@ -0,0 +1,36 @@
+package priorityqueue_test
+
+import (
+	"slices"
+	"testing"
+
+	"lindenii.org/go/furgit/internal/priorityqueue"
+)
+
+func TestQueueAscending(t *testing.T) {
+	t.Parallel()
+
+	queue := priorityqueue.New(func(left, right int) bool {
+		return left < right
+	})
+
+	for _, value := range []int{5, 1, 4, 3, 2} {
+		queue.Push(value)
+	}
+
+	var got []int
+
+	for queue.Len() > 0 {
+		value, ok := queue.Pop()
+		if !ok {
+			t.Fatal("Pop should succeed")
+		}
+
+		got = append(got, value)
+	}
+
+	want := []int{1, 2, 3, 4, 5}
+	if !slices.Equal(got, want) {
+		t.Fatalf("pop order = %v, want %v", got, want)
+	}
+}