consul/agent/dns/parser_test.go

142 lines
3.6 KiB
Go

// Copyright (c) HashiCorp, Inc.
// SPDX-License-Identifier: BUSL-1.1
package dns
import (
"github.com/stretchr/testify/require"
"testing"
)
func Test_parseLabels(t *testing.T) {
type testCase struct {
name string
labels []string
expectedOK bool
expectedResult *parsedLabels
}
testCases := []testCase{
{
name: "6 labels - with datacenter",
labels: []string{"test-ns", "ns", "test-ap", "ap", "test-dc", "dc"},
expectedResult: &parsedLabels{
Namespace: "test-ns",
Partition: "test-ap",
Datacenter: "test-dc",
},
expectedOK: true,
},
{
name: "6 labels - with cluster",
labels: []string{"test-ns", "ns", "test-ap", "ap", "test-cluster", "cluster"},
expectedResult: &parsedLabels{
Namespace: "test-ns",
Partition: "test-ap",
Datacenter: "test-cluster",
},
expectedOK: true,
},
{
name: "6 labels - with peer",
labels: []string{"test-ns", "ns", "test-ap", "ap", "test-peer", "peer"},
expectedResult: &parsedLabels{
Namespace: "test-ns",
Partition: "test-ap",
Peer: "test-peer",
},
expectedOK: true,
},
{
name: "6 labels - with sameness group",
labels: []string{"test-sg", "sg", "test-ap", "ap", "test-ns", "ns"},
expectedResult: &parsedLabels{
Namespace: "test-ns",
Partition: "test-ap",
SamenessGroup: "test-sg",
},
expectedOK: true,
},
{
name: "6 labels - invalid",
labels: []string{"test-ns", "not-ns", "test-ap", "ap", "test-dc", "dc"},
expectedResult: nil,
expectedOK: false,
},
{
name: "4 labels - namespace and datacenter",
labels: []string{"test-ns", "ns", "test-ap", "ap"},
expectedResult: &parsedLabels{
Namespace: "test-ns",
Partition: "test-ap",
},
expectedOK: true,
},
{
name: "4 labels - invalid",
labels: []string{"test-ns", "not-ns", "test-ap", "ap", "test-dc", "dc"},
expectedResult: nil,
expectedOK: false,
},
{
name: "2 labels - namespace and peer or datacenter",
labels: []string{"test-ns", "test-peer-or-dc"},
expectedResult: &parsedLabels{
Namespace: "test-ns",
PeerOrDatacenter: "test-peer-or-dc",
},
expectedOK: true,
},
{
name: "1 label - peer or datacenter",
labels: []string{"test-peer-or-dc"},
expectedResult: &parsedLabels{
PeerOrDatacenter: "test-peer-or-dc",
},
expectedOK: true,
},
{
name: "0 labels - returns empty result and true",
labels: []string{},
expectedResult: &parsedLabels{},
expectedOK: true,
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
result, ok := parseLabels(tc.labels)
require.Equal(t, tc.expectedOK, ok)
require.Equal(t, tc.expectedResult, result)
})
}
}
func Test_parsePort(t *testing.T) {
type testCase struct {
name string
labels []string
expectedResult string
}
testCases := []testCase{
{
name: "given 3 labels where the second label is port, the first label is returned",
labels: []string{"port-name", "port", "target-name"},
expectedResult: "port-name",
},
{
name: "given 3 labels where the second label is not port, an empty string is returned",
labels: []string{"port-name", "not-port", "target-name"},
expectedResult: "",
},
{
name: "given anything but 3 labels, an empty string is returned",
labels: []string{"port-name", "something-else"},
expectedResult: "",
},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
require.Equal(t, tc.expectedResult, parsePort(tc.labels))
})
}
}