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config: add unit test for assert tidb_stats_cache_mem_quota #34633

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merged 7 commits into from
May 13, 2022
Merged

config: add unit test for assert tidb_stats_cache_mem_quota #34633

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b1b432e
add test
Yisaer May 13, 2022
8e08cfe
Merge branch 'master' into add_test
ti-chi-bot May 13, 2022
31839f2
Merge branch 'master' into add_test
ti-chi-bot May 13, 2022
0a63f48
Merge branch 'master' into add_test
ti-chi-bot May 13, 2022
e8edd31
Merge branch 'master' into add_test
ti-chi-bot May 13, 2022
87aa9e5
Merge branch 'master' into add_test
ti-chi-bot May 13, 2022
c05f4bf
Merge branch 'master' into add_test
ti-chi-bot May 13, 2022
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6 changes: 6 additions & 0 deletions executor/set_test.go
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Original file line number Diff line number Diff line change
Expand Up @@ -627,6 +627,12 @@ func TestSetVar(t *testing.T) {
tk.MustQuery("select @@global.tidb_stats_cache_mem_quota").Check(testkit.Rows("0"))
tk.MustExec("set global tidb_stats_cache_mem_quota = 200")
tk.MustQuery("select @@global.tidb_stats_cache_mem_quota").Check(testkit.Rows("200"))
// assert quota must larger than -1
tk.MustExec("set global tidb_stats_cache_mem_quota = -1")
tk.MustQuery("select @@global.tidb_stats_cache_mem_quota").Check(testkit.Rows("0"))
// assert quota muster smaller than 1TB
tk.MustExec("set global tidb_stats_cache_mem_quota = 1099511627777")
tk.MustQuery("select @@global.tidb_stats_cache_mem_quota").Check(testkit.Rows("1099511627776"))
// for read-only instance scoped system variables.
tk.MustGetErrCode("set @@global.plugin_load = ''", errno.ErrIncorrectGlobalLocalVar)
tk.MustGetErrCode("set @@global.plugin_dir = ''", errno.ErrIncorrectGlobalLocalVar)
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