2 files changed, 37 insertions, 4 deletions
diff --git a/solo-tool-project/src/solo_tool/handlers.py b/solo-tool-project/src/solo_tool/handlers.py
index b178b3a..1820e86 100644
--- a/solo-tool-project/src/solo_tool/handlers.py
+++ b/solo-tool-project/src/solo_tool/handlers.py
@@ -56,14 +56,15 @@ def keyPointAbsolute(st: SoloTool, kp: float) -> Callable[[], None]:
 def keyPointRelative(st: SoloTool, delta: int) -> Callable[[], None]:
     from bisect import bisect_right, bisect_left
     def f():
+        l = sorted(set(st.keyPoints + [st.keyPoint]))
         if delta > 0:
-            pivot = bisect_right(st.keyPoints, st.keyPoint) - 1
+            pivot = bisect_right(l, st.keyPoint) - 1
         elif delta < 0:
-            pivot = bisect_left(st.keyPoints, st.keyPoint) - 1
+            pivot = bisect_left(l, st.keyPoint)
         else:
             return
-        new = max(min(pivot + delta, len(st.keyPoints) - 1), 0)
-        st.keyPoint = st.keyPoints[new]
+        new = max(min(pivot + delta, len(l) - 1), 0)
+        st.keyPoint = l[new]
     return f
 
 def rateAbsolute(st: SoloTool, value: float) -> Callable[[], None]:
diff --git a/solo-tool-project/test/handlers_integrationtest.py b/solo-tool-project/test/handlers_integrationtest.py
new file mode 100644
index 0000000..85050d6
--- /dev/null
+++ b/solo-tool-project/test/handlers_integrationtest.py
@@ -0,0 +1,32 @@
+import pytest
+
+from fixtures import soloTool, testSongs, mockPlayer, songPool
+
+from solo_tool.handlers import keyPointRelative
+
+testCases = [
+    ([0.1, 0.3], 0.0, +1, 0.1, "Start +1"),
+    ([0.1, 0.3], 0.1, +1, 0.3, "First +1"),
+    ([0.1, 0.3], 0.2, +1, 0.3, "Between +1"),
+    ([0.1, 0.3], 0.3, +1, 0.3, "Second +1"),
+    ([0.1, 0.3], 0.4, +1, 0.4, "End +1"),
+
+    ([0.1, 0.3], 0.0, -1, 0.0, "Start -1"),
+    ([0.1, 0.3], 0.1, -1, 0.1, "First -1"),
+    ([0.1, 0.3], 0.2, -1, 0.1, "Between -1"),
+    ([0.1, 0.3], 0.3, -1, 0.1, "Second -1"),
+    ([0.1, 0.3], 0.4, -1, 0.3, "End -1"),
+
+    ([0.0, 0.3], 0.0, -1, 0.0, "0.0 -1"),
+]
+
+@pytest.mark.parametrize("keyPoints,current,delta,expected,description", testCases)
+def test_keyPointRelativeEdgeCases(soloTool, testSongs, keyPoints, current, delta, expected, description):
+    soloTool.addSong(testSongs[0])
+    soloTool.keyPoints = keyPoints
+    soloTool.keyPoint = current
+
+    handler = keyPointRelative(soloTool, delta)
+    handler()
+
+    assert soloTool.keyPoint == expected, description