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