diff --git a/tests/unittests/test_common.c b/tests/unittests/test_common.c
index ed409d9d..6e96ef18 100644
--- a/tests/unittests/test_common.c
+++ b/tests/unittests/test_common.c
@@ -864,6 +864,73 @@ prof_partial_occurrences_tests(void** state)
     expected = NULL;
 }
 
+void
+get_mentions_tests(void** state)
+{
+    GSList* actual = NULL;
+    GSList* expected = NULL;
+
+    // Basic match, case sensitive
+    expected = g_slist_append(expected, GINT_TO_POINTER(6));
+    actual = get_mentions(FALSE, TRUE, "hello boothj5", "boothj5");
+    assert_true(_lists_equal(actual, expected));
+    g_slist_free(actual); actual = NULL;
+    g_slist_free(expected); expected = NULL;
+
+    // Case insensitive match
+    expected = g_slist_append(expected, GINT_TO_POINTER(6));
+    actual = get_mentions(FALSE, FALSE, "hello BOOTHJ5", "boothj5");
+    assert_true(_lists_equal(actual, expected));
+    g_slist_free(actual); actual = NULL;
+    g_slist_free(expected); expected = NULL;
+
+    // Whole word match
+    expected = g_slist_append(expected, GINT_TO_POINTER(0));
+    actual = get_mentions(TRUE, TRUE, "boothj5 hello", "boothj5");
+    assert_true(_lists_equal(actual, expected));
+    g_slist_free(actual); actual = NULL;
+    g_slist_free(expected); expected = NULL;
+
+    // Whole word no match (partial)
+    actual = get_mentions(TRUE, TRUE, "boothj5hello", "boothj5");
+    assert_true(_lists_equal(actual, expected)); // expected is NULL
+    g_slist_free(actual); actual = NULL;
+
+    // Multiple matches
+    expected = g_slist_append(expected, GINT_TO_POINTER(0));
+    expected = g_slist_append(expected, GINT_TO_POINTER(14));
+    actual = get_mentions(FALSE, TRUE, "boothj5 hello boothj5", "boothj5");
+    assert_true(_lists_equal(actual, expected));
+    g_slist_free(actual); actual = NULL;
+    g_slist_free(expected); expected = NULL;
+
+    // Nick with punctuation (whole word)
+    expected = g_slist_append(expected, GINT_TO_POINTER(0));
+    actual = get_mentions(TRUE, TRUE, "boothj5: hi", "boothj5");
+    assert_true(_lists_equal(actual, expected));
+    g_slist_free(actual); actual = NULL;
+    g_slist_free(expected); expected = NULL;
+
+    // Nick surrounded by punctuation
+    expected = g_slist_append(expected, GINT_TO_POINTER(1));
+    actual = get_mentions(TRUE, TRUE, "(boothj5)", "boothj5");
+    assert_true(_lists_equal(actual, expected));
+    g_slist_free(actual); actual = NULL;
+    g_slist_free(expected); expected = NULL;
+
+    // Empty message
+    actual = get_mentions(FALSE, TRUE, "", "boothj5");
+    assert_true(_lists_equal(actual, expected)); // expected is NULL
+    g_slist_free(actual); actual = NULL;
+
+    // UTF-8 characters
+    expected = g_slist_append(expected, GINT_TO_POINTER(0));
+    actual = get_mentions(TRUE, TRUE, "我能 hello", "我能");
+    assert_true(_lists_equal(actual, expected));
+    g_slist_free(actual); actual = NULL;
+    g_slist_free(expected); expected = NULL;
+}
+
 void
 prof_whole_occurrences_tests(void** state)
 {
diff --git a/tests/unittests/test_common.h b/tests/unittests/test_common.h
index e66f1121..04c9453c 100644
--- a/tests/unittests/test_common.h
+++ b/tests/unittests/test_common.h
@@ -43,3 +43,4 @@ void test_strtoi_range_null_empty_input(void** state);
 void test_strtoi_range_null_err_msg(void** state);
 void test_string_matches_one_of_edge_cases(void** state);
 void test_valid_tls_policy_option(void** state);
+void get_mentions_tests(void** state);
diff --git a/tests/unittests/unittests.c b/tests/unittests/unittests.c
index 35253e3a..1b054eeb 100644
--- a/tests/unittests/unittests.c
+++ b/tests/unittests/unittests.c
@@ -634,6 +634,7 @@ main(int argc, char* argv[])
         cmocka_unit_test(prof_partial_occurrences_tests),
         cmocka_unit_test(prof_whole_occurrences_tests),
         cmocka_unit_test(prof_occurrences_of_large_message_tests),
+        cmocka_unit_test(get_mentions_tests),
 
         cmocka_unit_test_setup_teardown(returns_no_commands,
                                         load_preferences,