diff --git a/tests/end2end/test_hints_html.py b/tests/end2end/test_hints_html.py
index abc106505..7b84bd635 100644
--- a/tests/end2end/test_hints_html.py
+++ b/tests/end2end/test_hints_html.py
@@ -22,12 +22,17 @@
import os
import os.path
import textwrap
+import string
+import functools
+import operator
import attr
import yaml
import pytest
import bs4
+import qutebrowser.browser.hints
+
def collect_tests():
basedir = os.path.dirname(__file__)
@@ -146,3 +151,45 @@ def test_word_hints_issue1393(quteproc, tmpdir):
quteproc.wait_for(message='hints: *', category='hints')
quteproc.send_cmd(':follow-hint {}'.format(hint))
quteproc.wait_for_load_finished('data/{}'.format(target))
+
+
+@pytest.mark.parametrize('min_len', [0, 3])
+@pytest.mark.parametrize('num_chars', [9])
+@pytest.mark.parametrize('num_elements', range(1, 26))
+def test_scattered_hints_count(win_registry, mode_manager, min_len,
+ num_chars, num_elements):
+ """Test scattered hints function."""
+ # pylint: disable=W0141
+ manager = qutebrowser.browser.hints.HintManager(0, 0)
+ chars = string.ascii_lowercase[:num_chars]
+
+ hints = manager._hint_scattered(min_len, chars,
+ list(range(num_elements)))
+
+ # Check if hints are unique
+ assert len(hints) == len(set(hints))
+
+ # Check if any hints are shorter than min_len
+ assert not any([x for x in hints if len(x) < min_len])
+
+ # Check we don't have more than 2 link lengths
+ # Eg: 'a' 'bc' and 'def' cannot be in the same hint string
+ hint_lens = set(map(len, hints))
+ assert len(hint_lens) <= 2
+
+ if len(hint_lens) == 2:
+ # Check if hint_lens are more than 1 apart
+ # Eg: 'abc' and 'd' cannot be in the same hint sequence, but
+ # 'ab' and 'c' can
+ assert abs(functools.reduce(operator.sub, hint_lens)) <= 1
+
+ longest_hints = filter(lambda x: len(x) == max(hint_lens), hints)
+
+ if min_len < max(hint_lens) - 1:
+ # Check if we have any unique prefixes. For example, 'la'
+ # alone, with no other 'l'
+ count_map = {}
+ for x in longest_hints:
+ prefix = x[:-1]
+ count_map[prefix] = count_map.get(prefix, 0) + 1
+ assert not any(filter(lambda x: x == 1, count_map.values()))