From d26096103618e02ebf8038b11fc1b2eb9da6dc2d Mon Sep 17 00:00:00 2001
From: Mathias Rav <mathias@scalgo.com>
Date: Thu, 19 Aug 2021 11:49:06 +0200
Subject: [PATCH] Test that QgsRandomColorRamp returns distinct colors

---
 tests/src/python/test_qgscolorramp.py | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/tests/src/python/test_qgscolorramp.py b/tests/src/python/test_qgscolorramp.py
index 902da36f706c..5ed05eadb39a 100644
--- a/tests/src/python/test_qgscolorramp.py
+++ b/tests/src/python/test_qgscolorramp.py
@@ -288,11 +288,14 @@ def testQgsRandomColorRamp(self):
         self.assertEqual(cloned.type(), 'randomcolors')
 
         # test with pregenerated colors
-        for i in range(10000):
-            r.setTotalColorCount(10)
-            for j in range(10):
-                c = r.color(j * 0.1)
+        for n in range(2, 100):
+            r.setTotalColorCount(n)
+            seen = set()
+            for j in range(n):
+                c = r.color(j / (n - 1))
                 self.assertTrue(c.isValid())
+                seen.add(c.rgb())
+            self.assertEqual(len(seen), n)
 
     def testQgsPresetSchemeColorRamp(self):
         # test preset color ramp