go lockrank_test 源码
golang lockrank_test 代码
文件路径：/src/runtime/lockrank_test.go
// Copyright 2021 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package runtime_test
import (
. "runtime"
"testing"
)
// Check that the partial order in lockPartialOrder fits within the total order
// determined by the order of the lockRank constants.
func TestLockRankPartialOrder(t *testing.T) {
for r, list := range LockPartialOrder {
rank := LockRank(r)
for _, e := range list {
entry := LockRank(e)
if entry > rank {
t.Errorf("lockPartialOrder row %v entry %v is inconsistent with total lock ranking order", rank, entry)
}
}
}
}
// Verify that partial order lists are kept sorted. This is a purely cosemetic
// check to make manual reviews simpler. It does not affect correctness, unlike
// the above test.
func TestLockRankPartialOrderSortedEntries(t *testing.T) {
for r, list := range LockPartialOrder {
rank := LockRank(r)
var prev LockRank
for _, e := range list {
entry := LockRank(e)
if entry <= prev {
t.Errorf("Partial order for rank %v out of order: %v <= %v in %v", rank, entry, prev, list)
}
prev = entry
}
}
}
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