diff --git a/test/aprsme_web/test_helpers_test.exs b/test/aprsme_web/test_helpers_test.exs
new file mode 100644
index 0000000..cdaeb42
--- /dev/null
+++ b/test/aprsme_web/test_helpers_test.exs
@@ -0,0 +1,61 @@
+defmodule AprsmeWeb.TestHelpersTest do
+  use Aprsme.DataCase, async: true
+
+  alias AprsmeWeb.TestHelpers
+
+  describe "create_test_packet/1" do
+    test "creates a packet with defaults" do
+      {:ok, packet} = TestHelpers.create_test_packet()
+      assert packet.sender == "TEST-1"
+      assert packet.base_callsign == "TEST"
+    end
+
+    test "overrides with attrs" do
+      {:ok, packet} = TestHelpers.create_test_packet(%{sender: "CUSTOM-9"})
+      assert packet.sender == "CUSTOM-9"
+    end
+
+    test "creates packet with weather attrs" do
+      {:ok, packet} =
+        TestHelpers.create_test_packet(%{
+          sender: "WXHELPER",
+          temperature: 72.0,
+          humidity: 50.0,
+          wind_speed: 5.0
+        })
+
+      assert packet.temperature == 72.0
+      assert packet.humidity == 50.0
+      assert packet.wind_speed == 5.0
+    end
+  end
+
+  describe "bounds helpers" do
+    test "texas_bounds returns a map with all four directions" do
+      bounds = TestHelpers.texas_bounds()
+      assert %{"north" => _, "south" => _, "east" => _, "west" => _} = bounds
+    end
+
+    test "restrictive_bounds returns a map with all four directions" do
+      bounds = TestHelpers.restrictive_bounds()
+      assert %{"north" => _, "south" => _, "east" => _, "west" => _} = bounds
+    end
+  end
+
+  describe "time helpers" do
+    test "hours_ago returns a DateTime earlier than now" do
+      then_dt = TestHelpers.hours_ago(2)
+      assert DateTime.before?(then_dt, DateTime.utc_now())
+    end
+
+    test "minutes_ago returns a DateTime earlier than now" do
+      then_dt = TestHelpers.minutes_ago(10)
+      assert DateTime.before?(then_dt, DateTime.utc_now())
+    end
+
+    test "days_ago returns a DateTime earlier than now" do
+      then_dt = TestHelpers.days_ago(3)
+      assert DateTime.before?(then_dt, DateTime.utc_now())
+    end
+  end
+end