[tests] Fix MusicBrainz sample number

Bug: T243669
Change-Id: I3c3ad9b1e7ac08c9b8e5ffb604c397a8687d83d4
---
M tests/generate_family_files_tests.py
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tests/generate_family_files_tests.py b/tests/generate_family_files_tests.py
index e5d1aad..19a6f59 100644
--- a/tests/generate_family_files_tests.py
+++ b/tests/generate_family_files_tests.py
@@ -27,9 +27,9 @@
     """Family file test creator."""
 
     def getapis(self):
-        """Only load additional ten additional different wikis randomly."""
+        """Only load up to additional ten different wikis randomly."""
         save = self.langs
-        self.langs = sample(save, 10)
+        self.langs = sample(save, min(len(save), 10))
         self.prefixes = [item['prefix'] for item in self.langs]
         super(FamilyTestGenerator, self).getapis()
         self.langs = save

