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@ -11,6 +11,7 @@ import (
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"fmt"
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"net/netip"
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"reflect"
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"runtime"
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"strings"
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"testing"
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@ -1156,3 +1157,50 @@ func TestUpWorthWarning(t *testing.T) {
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t.Errorf("want false for other misc errors")
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}
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}
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func TestServeConfigMutations(t *testing.T) {
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// Stateful mutations, starting from an empty config.
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type step struct {
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command []string // serve args
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reset bool // if true, reset all ServeConfig state
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want *ipn.ServeConfig
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wantErr string
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line int // line number of addStep call, for error messages
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}
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var steps []step
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add := func(s step) {
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_, _, s.line, _ = runtime.Caller(1)
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steps = append(steps, s)
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}
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add(step{reset: true})
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add(step{
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want: nil,
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})
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var current *ipn.ServeConfig
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for i, st := range steps {
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t.Logf("Executing step #%d (line %v) ... ", i, st.line)
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if st.reset {
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t.Logf("(resetting state)")
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current = nil
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}
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newState, err := applyServeMutation(current, st.command)
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var gotErr string
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if err != nil {
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gotErr = err.Error()
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}
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if gotErr != st.wantErr {
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t.Fatalf("[%d] %v: got error %q, want %q", i, st.command, gotErr, st.wantErr)
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}
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if !reflect.DeepEqual(newState, st.want) {
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t.Fatalf("[%d] %v: bad state. got:\n%s\n\nwant:\n%s\n",
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i, st.command, asJSON(newState), asJSON(st.want))
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}
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}
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}
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func applyServeMutation(current *ipn.ServeConfig, command []string) (*ipn.ServeConfig, error) {
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if len(command) == 0 {
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return current, nil
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}
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panic("TODO") // in cli/serve.go, not here in tests
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}
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