diff --git a/test/test_rssi.cpp b/test/test_rssi.cpp
index 0215179..519f72f 100644
--- a/test/test_rssi.cpp
+++ b/test/test_rssi.cpp
@@ -47,11 +47,32 @@ void test_rssi(void)
     TEST_ASSERT_EQUAL_INT16_ARRAY(expect, samples, test_sz);
 }
 
+void test_detect()
+{
+    uint16_t samples[test_sz] = {20, 50, 55, 60, 0, 70, 75, 80, 0, 90, 0, 100, 110};
+    bool result[test_sz];
+
+    size_t r = Scan::detect(samples, result, test_sz, 1);
+
+    bool expect[test_sz] = {1, 1, 1, 1, 0, 1, 1, 1, 0, 1, 0, 1, 1};
+
+    TEST_ASSERT_EQUAL_INT16(0, r);
+    TEST_ASSERT_EQUAL_INT8_ARRAY(expect, result, test_sz);
+
+    r = Scan::detect(samples, result, test_sz, 2);
+
+    bool expect2[test_sz] = {0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0};
+
+    TEST_ASSERT_EQUAL_INT16(1, r);
+    TEST_ASSERT_EQUAL_INT8_ARRAY(expect2, result, test_sz);
+}
+
 int main(int argc, char **argv)
 {
     UNITY_BEGIN();
 
     RUN_TEST(test_rssi);
+    RUN_TEST(test_detect);
 
     UNITY_END();
 }