52 lines
1.1 KiB
Go
52 lines
1.1 KiB
Go
// Copyright (c) Tailscale Inc & AUTHORS
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// SPDX-License-Identifier: BSD-3-Clause
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package health
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import (
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"errors"
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"fmt"
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"reflect"
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"testing"
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)
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func TestAppendWarnableDebugFlags(t *testing.T) {
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var tr Tracker
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for i := range 10 {
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w := NewWarnable(WithMapDebugFlag(fmt.Sprint(i)))
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if i%2 == 0 {
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tr.SetWarnable(w, errors.New("boom"))
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}
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}
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want := []string{"z", "y", "0", "2", "4", "6", "8"}
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var got []string
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for range 20 {
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got = append(got[:0], "z", "y")
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got = tr.AppendWarnableDebugFlags(got)
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if !reflect.DeepEqual(got, want) {
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t.Fatalf("AppendWarnableDebugFlags = %q; want %q", got, want)
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}
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}
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}
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// Test that all exported methods on *Tracker don't panic with a nil receiver.
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func TestNilMethodsDontCrash(t *testing.T) {
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var nilt *Tracker
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rv := reflect.ValueOf(nilt)
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for i := 0; i < rv.NumMethod(); i++ {
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mt := rv.Type().Method(i)
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t.Logf("calling Tracker.%s ...", mt.Name)
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var args []reflect.Value
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for j := 0; j < mt.Type.NumIn(); j++ {
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if j == 0 && mt.Type.In(j) == reflect.TypeFor[*Tracker]() {
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continue
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}
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args = append(args, reflect.Zero(mt.Type.In(j)))
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}
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rv.Method(i).Call(args)
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}
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}
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