From a402eda16c4651cd790abe33973d9ccd2cd41ce6 Mon Sep 17 00:00:00 2001
From: Naman Sood <mail@nsood.in>
Date: Wed, 10 Dec 2025 14:07:37 -0500
Subject: [PATCH] broken don't merge: tests

Signed-off-by: Naman Sood <mail@nsood.in>
---
 ipn/conffile/serveconf_test.go | 91 ++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 ipn/conffile/serveconf_test.go

diff --git a/ipn/conffile/serveconf_test.go b/ipn/conffile/serveconf_test.go
new file mode 100644
index 000000000..10df477d5
--- /dev/null
+++ b/ipn/conffile/serveconf_test.go
@@ -0,0 +1,91 @@
+// Copyright (c) Tailscale Inc & AUTHORS
+// SPDX-License-Identifier: BSD-3-Clause
+
+package conffile
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+	"tailscale.com/tailcfg"
+	"tailscale.com/util/must"
+)
+
+func mustParseProtoPortRange(s string) *tailcfg.ProtoPortRange {
+	return &must.Get(tailcfg.ParseProtoPortRanges([]string{s}))[0]
+}
+
+func TestLoadConfigV0(t *testing.T) {
+	tests := []struct {
+		name       string
+		config     string
+		forService string
+		want       *ServicesConfigFile
+		wantErr    bool
+	}{
+		{
+			name:   "empty-config",
+			config: "{}",
+			want:   &ServicesConfigFile{},
+		},
+		{
+			name: "deserialize-endpoints",
+			config: `{
+				"services": {
+					"svc:test": {
+						"endpoints": {
+							"tcp:443": "http://localhost:8080",
+							"tcp:80": "tcp://localhost:8000",
+							"tcp:1000": "https+insecure://127.0.0.1:1000"
+						}
+					}
+				}
+			}`,
+			want: &ServicesConfigFile{
+				Services: map[tailcfg.ServiceName]*ServiceDetailsFile{
+					tailcfg.ServiceName("svc:test"): {
+						Endpoints: map[*tailcfg.ProtoPortRange]*Target{
+							mustParseProtoPortRange("tcp:443"): &Target{
+								Protocol:         ProtoHTTP,
+								Destination:      "localhost",
+								DestinationPorts: tailcfg.PortRange{First: 8000, Last: 8000},
+							},
+							mustParseProtoPortRange("tcp:80"): &Target{
+								Protocol:         ProtoTCP,
+								Destination:      "localhost",
+								DestinationPorts: tailcfg.PortRange{First: 8000, Last: 8000},
+							},
+							mustParseProtoPortRange("tcp:1000"): &Target{
+								Protocol:         ProtoHTTPSInsecure,
+								Destination:      "127.0.0.1",
+								DestinationPorts: tailcfg.PortRange{First: 1000, Last: 1000},
+							},
+						},
+					},
+				},
+			},
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := loadConfigV0([]byte(tt.config), tt.forService)
+			if tt.wantErr && err == nil {
+				t.Fatalf("want err, got success")
+			}
+			if !tt.wantErr && err != nil {
+				t.Fatalf("want success, got err: %v", err)
+			}
+			if diff := cmp.Diff(
+				got,
+				tt.want,
+				cmp.Comparer(func(x, y *tailcfg.ProtoPortRange) bool { return *x == *y }),
+				cmp.Comparer(func(x, y reflect.Type) bool { return x == y }),
+				cmp.Transformer("ppr", func(ppr *tailcfg.ProtoPortRange) tailcfg.ProtoPortRange { return *ppr }),
+			); diff != "" {
+				t.Fatalf("incorrect config (-want,+got):\n%s", diff)
+			}
+		})
+	}
+}