traefik/pkg/config/kv/kv_node_test.go

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package kv
import (
"encoding/json"
"fmt"
"testing"
"github.com/kvtools/valkeyrie/store"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
"github.com/traefik/paerser/parser"
)
func TestDecodeToNode(t *testing.T) {
type expected struct {
error bool
node *parser.Node
}
testCases := []struct {
desc string
in map[string]string
filters []string
expected expected
}{
{
desc: "no label",
in: map[string]string{},
expected: expected{node: nil},
},
{
desc: "level 1",
in: map[string]string{
"traefik/foo": "bar",
},
expected: expected{node: &parser.Node{
Name: "traefik",
Children: []*parser.Node{
{Name: "foo", Value: "bar"},
},
}},
},
{
desc: "level 1 empty value",
in: map[string]string{
"traefik/foo": "",
},
expected: expected{node: &parser.Node{
Name: "traefik",
Children: []*parser.Node{
{Name: "foo", Value: ""},
},
}},
},
{
desc: "level 2",
in: map[string]string{
"traefik/foo/bar": "bar",
},
expected: expected{node: &parser.Node{
Name: "traefik",
Children: []*parser.Node{{
Name: "foo",
Children: []*parser.Node{
{Name: "bar", Value: "bar"},
},
}},
}},
},
{
desc: "several entries, level 0",
in: map[string]string{
"traefik": "bar",
"traefic": "bur",
},
expected: expected{error: true},
},
{
desc: "several entries, prefix filter",
in: map[string]string{
"traefik/foo": "bar",
"traefik/fii": "bir",
},
filters: []string{"traefik/Foo"},
expected: expected{node: &parser.Node{
Name: "traefik",
Children: []*parser.Node{
{Name: "foo", Value: "bar"},
},
}},
},
{
desc: "several entries, level 1",
in: map[string]string{
"traefik/foo": "bar",
"traefik/fii": "bur",
},
expected: expected{node: &parser.Node{
Name: "traefik",
Children: []*parser.Node{
{Name: "fii", Value: "bur"},
{Name: "foo", Value: "bar"},
},
}},
},
{
desc: "several entries, level 2",
in: map[string]string{
"traefik/foo/aaa": "bar",
"traefik/foo/bbb": "bur",
},
expected: expected{node: &parser.Node{
Name: "traefik",
Children: []*parser.Node{
{Name: "foo", Children: []*parser.Node{
{Name: "aaa", Value: "bar"},
{Name: "bbb", Value: "bur"},
}},
},
}},
},
{
desc: "several entries, level 2, case insensitive",
in: map[string]string{
"traefik/foo/aaa": "bar",
"traefik/Foo/bbb": "bur",
},
expected: expected{node: &parser.Node{
Name: "traefik",
Children: []*parser.Node{
{Name: "Foo", Children: []*parser.Node{
{Name: "bbb", Value: "bur"},
{Name: "aaa", Value: "bar"},
}},
},
}},
},
{
desc: "several entries, level 2, 3 children",
in: map[string]string{
"traefik/foo/aaa": "bar",
"traefik/foo/bbb": "bur",
"traefik/foo/ccc": "bir",
},
expected: expected{node: &parser.Node{
Name: "traefik",
Children: []*parser.Node{
{Name: "foo", Children: []*parser.Node{
{Name: "aaa", Value: "bar"},
{Name: "bbb", Value: "bur"},
{Name: "ccc", Value: "bir"},
}},
},
}},
},
{
desc: "several entries, level 3",
in: map[string]string{
"traefik/foo/bar/aaa": "bar",
"traefik/foo/bar/bbb": "bur",
},
expected: expected{node: &parser.Node{
Name: "traefik",
Children: []*parser.Node{
{Name: "foo", Children: []*parser.Node{
{Name: "bar", Children: []*parser.Node{
{Name: "aaa", Value: "bar"},
{Name: "bbb", Value: "bur"},
}},
}},
},
}},
},
{
desc: "several entries, level 3, 2 children level 1",
in: map[string]string{
"traefik/foo/bar/aaa": "bar",
"traefik/foo/bar/bbb": "bur",
"traefik/bar/foo/bbb": "bir",
},
expected: expected{node: &parser.Node{
Name: "traefik",
Children: []*parser.Node{
{Name: "bar", Children: []*parser.Node{
{Name: "foo", Children: []*parser.Node{
{Name: "bbb", Value: "bir"},
}},
}},
{Name: "foo", Children: []*parser.Node{
{Name: "bar", Children: []*parser.Node{
{Name: "aaa", Value: "bar"},
{Name: "bbb", Value: "bur"},
}},
}},
},
}},
},
{
desc: "several entries, slice syntax",
in: map[string]string{
"traefik/foo/0/aaa": "bar0",
"traefik/foo/0/bbb": "bur0",
"traefik/foo/1/aaa": "bar1",
"traefik/foo/1/bbb": "bur1",
},
expected: expected{node: &parser.Node{
Name: "traefik",
Children: []*parser.Node{
{Name: "foo", Children: []*parser.Node{
{Name: "[0]", Children: []*parser.Node{
{Name: "aaa", Value: "bar0"},
{Name: "bbb", Value: "bur0"},
}},
{Name: "[1]", Children: []*parser.Node{
{Name: "aaa", Value: "bar1"},
{Name: "bbb", Value: "bur1"},
}},
}},
},
}},
},
{
desc: "several entries, slice in slice of struct",
in: map[string]string{
"traefik/foo/0/aaa/0": "bar0",
"traefik/foo/0/aaa/1": "bar1",
"traefik/foo/1/aaa/0": "bar2",
"traefik/foo/1/aaa/1": "bar3",
},
expected: expected{node: &parser.Node{
Name: "traefik",
Children: []*parser.Node{
{Name: "foo", Children: []*parser.Node{
{Name: "[0]", Children: []*parser.Node{
{Name: "aaa", Value: "bar0,bar1"},
}},
{Name: "[1]", Children: []*parser.Node{
{Name: "aaa", Value: "bar2,bar3"},
}},
}},
},
}},
},
}
for _, test := range testCases {
t.Run(test.desc, func(t *testing.T) {
t.Parallel()
out, err := DecodeToNode(mapToPairs(test.in), "traefik", test.filters...)
if test.expected.error {
require.Error(t, err)
} else {
require.NoError(t, err)
if !assert.Equal(t, test.expected.node, out) {
bytes, err := json.MarshalIndent(out, "", " ")
require.NoError(t, err)
fmt.Println(string(bytes))
}
}
})
}
}
func mapToPairs(in map[string]string) []*store.KVPair {
var out []*store.KVPair
for k, v := range in {
out = append(out, &store.KVPair{Key: k, Value: []byte(v)})
}
return out
}