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testing: clarify that Cleanup is run after subtests complete.
It's good to be explicit, as it's not necessarily obvious (and indeed the behavior has changed recently with https://go-review.googlesource.com/c/go/+/214822) without an associated doc comment change). Change-Id: I99d6398bf15b404b1b1b196e712e926e363251e9 Reviewed-on: https://go-review.googlesource.com/c/go/+/215217 Reviewed-by: Paul Jolly <paul@myitcv.org.uk> Reviewed-by: Ian Lance Taylor <iant@golang.org>
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@ -776,9 +776,9 @@ func (c *common) Helper() {
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c.helpers[callerName(1)] = struct{}{}
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}
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// Cleanup registers a function to be called when the test finishes.
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// Cleanup functions will be called in last added, first called
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// order.
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// Cleanup registers a function to be called when the test and all its
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// subtests complete. Cleanup functions will be called in last added,
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// first called order.
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func (c *common) Cleanup(f func()) {
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c.mu.Lock()
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defer c.mu.Unlock()
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