119 lines
4.2 KiB
Go
119 lines
4.2 KiB
Go
/*
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Copyright 2026.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package instance_test
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import (
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"strings"
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"testing"
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"git.ddupan.top/panxiao81/postgresql-tenant-operator/internal/domain/instance"
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)
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func validEndpoint() instance.EndpointValues {
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return instance.EndpointValues{
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Host: "postgres.home.arpa", HostAddr: "192.0.2.10", Port: 5432,
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ManagementDatabase: "postgres", TLSMode: instance.TLSVerifyFull,
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}
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}
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// Acceptance: docs/domain-instance.md §2, explicit values and no implicit TLS downgrade.
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func TestEndpointRejectsInvalidValues(t *testing.T) {
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cases := []struct {
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name string
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change func(*instance.EndpointValues)
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}{
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{"empty host", func(v *instance.EndpointValues) { v.Host = "" }},
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{"missing address", func(v *instance.EndpointValues) { v.HostAddr = "" }},
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{"DNS instead of IP", func(v *instance.EndpointValues) { v.HostAddr = "postgres.home.arpa" }},
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{"invalid IP", func(v *instance.EndpointValues) { v.HostAddr = "192.0.2.999" }},
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{"address with port", func(v *instance.EndpointValues) { v.HostAddr = "192.0.2.10:5432" }},
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{"scoped address", func(v *instance.EndpointValues) { v.HostAddr = "fe80::1%eth0" }},
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{"zero port", func(v *instance.EndpointValues) { v.Port = 0 }},
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{"negative port", func(v *instance.EndpointValues) { v.Port = -1 }},
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{"large port", func(v *instance.EndpointValues) { v.Port = 65536 }},
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{"empty database", func(v *instance.EndpointValues) { v.ManagementDatabase = "" }},
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{"uppercase database", func(v *instance.EndpointValues) { v.ManagementDatabase = "Postgres" }},
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{"leading digit", func(v *instance.EndpointValues) { v.ManagementDatabase = "1postgres" }},
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{"punctuation", func(v *instance.EndpointValues) { v.ManagementDatabase = "post-gres" }},
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{"NUL", func(v *instance.EndpointValues) { v.ManagementDatabase = "post\x00gres" }},
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{"long identifier", func(v *instance.EndpointValues) { v.ManagementDatabase = strings.Repeat("a", 64) }},
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{"missing TLS mode", func(v *instance.EndpointValues) { v.TLSMode = "" }},
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{"unsupported TLS mode", func(v *instance.EndpointValues) { v.TLSMode = "prefer" }},
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}
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for _, tc := range cases {
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t.Run(tc.name, func(t *testing.T) {
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values := validEndpoint()
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tc.change(&values)
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endpoint, err := instance.NewEndpoint(values)
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if err == nil {
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t.Fatal("invalid endpoint accepted")
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}
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if endpoint != (instance.Endpoint{}) {
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t.Fatal("constructor returned a partial endpoint on failure")
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}
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})
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}
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}
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func TestEndpointPreservesValidValues(t *testing.T) {
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for _, mode := range []instance.TLSMode{
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instance.TLSDisable, instance.TLSRequire, instance.TLSVerifyCA, instance.TLSVerifyFull,
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} {
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for _, address := range []string{"192.0.2.10", "2001:db8::10"} {
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for _, port := range []int{1, 65535} {
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values := validEndpoint()
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values.TLSMode, values.HostAddr, values.Port = mode, address, port
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values.ManagementDatabase = "a" + strings.Repeat("_", 62)
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endpoint, err := instance.NewEndpoint(values)
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if err != nil {
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t.Fatal(err)
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}
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if endpoint.Values() != values {
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t.Fatal("constructor changed explicit values")
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}
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if err := endpoint.Validate(); err != nil {
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t.Fatal(err)
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}
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}
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}
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}
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}
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func TestEndpointIsAnImmutableComparableValue(t *testing.T) {
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values := validEndpoint()
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endpoint, err := instance.NewEndpoint(values)
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if err != nil {
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t.Fatal(err)
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}
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same, err := instance.NewEndpoint(values)
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if err != nil {
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t.Fatal(err)
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}
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if endpoint != same {
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t.Fatal("identical endpoint values must compare equal")
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}
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values.Host = "changed.example"
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snapshot := endpoint.Values()
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snapshot.Host = values.Host
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if endpoint.Values().Host == snapshot.Host {
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t.Fatal("caller mutated endpoint through a copy")
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}
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if err := (instance.Endpoint{}).Validate(); err == nil {
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t.Fatal("zero endpoint must not be valid")
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}
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}
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