Files
dnswatcher/internal/config/classify_test.go
T
sneak 2b034ae65a
check / check (push) Failing after 28s
config: watch a target listed twice only once (closes #207)
ClassifyTargets kept a name every time it appeared in DNSWATCHER_TARGETS,
so example.com,Example.com. put example.com in the domain list twice and
every check looked it up, checked its ports and its certificates twice,
sending two expiry warnings per TLS check. It now skips a name it has
already kept, comparing after the lower-casing and trailing-dot removal
it already did; the list keeps the order of first appearance.

Model: opus-5-5
2026-10-02 00:20:42 +00:00

128 lines
2.7 KiB
Go

package config_test
import (
"slices"
"testing"
"sneak.berlin/go/dnswatcher/internal/config"
)
func TestClassifyDNSName(t *testing.T) {
t.Parallel()
tests := []struct {
name string
input string
want config.DNSNameType
wantErr bool
}{
{name: "apex domain simple", input: "example.com", want: config.DNSNameTypeDomain},
{name: "hostname simple", input: "www.example.com", want: config.DNSNameTypeHostname},
{
name: "apex domain multi-part TLD",
input: "example.co.uk",
want: config.DNSNameTypeDomain,
},
{
name: "hostname multi-part TLD",
input: "api.example.co.uk",
want: config.DNSNameTypeHostname,
},
{name: "public suffix itself", input: "co.uk", wantErr: true},
{name: "empty string", input: "", wantErr: true},
{
name: "deeply nested hostname",
input: "a.b.c.example.com",
want: config.DNSNameTypeHostname,
},
{
name: "trailing dot stripped",
input: "example.com.",
want: config.DNSNameTypeDomain,
},
{
name: "uppercase normalized",
input: "WWW.Example.COM",
want: config.DNSNameTypeHostname,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
t.Parallel()
got, err := config.ClassifyDNSName(tt.input)
if tt.wantErr {
if err == nil {
t.Errorf("ClassifyDNSName(%q) expected error, got %v", tt.input, got)
}
return
}
if err != nil {
t.Fatalf("ClassifyDNSName(%q) unexpected error: %v", tt.input, err)
}
if got != tt.want {
t.Errorf("ClassifyDNSName(%q) = %v, want %v", tt.input, got, tt.want)
}
})
}
}
func TestClassifyTargets(t *testing.T) {
t.Parallel()
domains, hostnames, err := config.ClassifyTargets([]string{
"example.com",
"www.example.com",
"example.co.uk",
"api.example.co.uk",
})
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if len(domains) != 2 {
t.Errorf("expected 2 domains, got %d: %v", len(domains), domains)
}
if len(hostnames) != 2 {
t.Errorf("expected 2 hostnames, got %d: %v", len(hostnames), hostnames)
}
}
func TestClassifyTargetsKeepsEachNameOnce(t *testing.T) {
t.Parallel()
domains, hostnames, err := config.ClassifyTargets([]string{
"example.com",
"Example.com.",
"www.example.com",
"EXAMPLE.COM",
"WWW.Example.com.",
})
if err != nil {
t.Fatalf("unexpected error: %v", err)
}
if !slices.Equal(domains, []string{"example.com"}) {
t.Errorf("domains = %v, want [example.com]", domains)
}
if !slices.Equal(hostnames, []string{"www.example.com"}) {
t.Errorf("hostnames = %v, want [www.example.com]", hostnames)
}
}
func TestClassifyTargetsRejectsPublicSuffix(t *testing.T) {
t.Parallel()
_, _, err := config.ClassifyTargets([]string{"co.uk"})
if err == nil {
t.Error("expected error for public suffix, got nil")
}
}