chore: use interfaces for all other services

internal/domain/statistics_test.go

@@ -0,0 +1,74 @@
+package domain
+
+import (
+	"testing"
+	"time"
+)
+
+func TestPeerStatus_IsConnected(t *testing.T) {
+	now := time.Now()
+	past := now.Add(-3 * time.Minute)
+	recent := now.Add(-1 * time.Minute)
+
+	tests := []struct {
+		name   string
+		status PeerStatus
+		want   bool
+	}{
+		{
+			name: "Pingable and recent handshake",
+			status: PeerStatus{
+				IsPingable:    true,
+				LastHandshake: &recent,
+			},
+			want: true,
+		},
+		{
+			name: "Not pingable but recent handshake",
+			status: PeerStatus{
+				IsPingable:    false,
+				LastHandshake: &recent,
+			},
+			want: true,
+		},
+		{
+			name: "Pingable but old handshake",
+			status: PeerStatus{
+				IsPingable:    true,
+				LastHandshake: &past,
+			},
+			want: true,
+		},
+		{
+			name: "Not pingable and old handshake",
+			status: PeerStatus{
+				IsPingable:    false,
+				LastHandshake: &past,
+			},
+			want: false,
+		},
+		{
+			name: "Pingable and no handshake",
+			status: PeerStatus{
+				IsPingable:    true,
+				LastHandshake: nil,
+			},
+			want: true,
+		},
+		{
+			name: "Not pingable and no handshake",
+			status: PeerStatus{
+				IsPingable:    false,
+				LastHandshake: nil,
+			},
+			want: false,
+		},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := tt.status.IsConnected(); got != tt.want {
+				t.Errorf("IsConnected() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}