test: fix unstable integration test auto_random_default (#529)

pingcap · Dec 21, 2020 · c2b6dde · c2b6dde
1 parent e9a1bfb
commit c2b6dde
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/tests/auto_random_default/run.sh b/tests/auto_random_default/run.sh
@@ -45,9 +45,12 @@ for backend in tidb importer local; do
       NEXT_AUTO_RAND_VAL=28
     fi
 
-
-    run_sql "select count(distinct id >> 58) as count from auto_random.t"
-    check_contains "count: 2"
+    # tidb backend randomly generate the auto-random bit for each statement, so with 2 statements,
+    # the distinct auto_random prefix values can be 1 or 2, so we skip this check with tidb backend
+    if [ "$backend" != 'tidb' ]; then
+      run_sql "select count(distinct id >> 58) as count from auto_random.t"
+      check_contains "count: 2"
+    fi
 
     # auto random base is 4
     run_sql "SELECT max(id & b'000001111111111111111111111111111111111111111111111111111111111') >= $NEXT_AUTO_RAND_VAL as ge FROM auto_random.t"