package internal import ( "encoding/json" "fmt" "testing" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" ) func TestDecodeToNode(t *testing.T) { type expected struct { error bool node *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: &Node{ Name: "traefik", Children: []*Node{ {Name: "foo", Value: "bar"}, }, }}, }, { desc: "level 1 empty value", in: map[string]string{ "traefik.foo": "", }, expected: expected{node: &Node{ Name: "traefik", Children: []*Node{ {Name: "foo", Value: ""}, }, }}, }, { desc: "level 2", in: map[string]string{ "traefik.foo.bar": "bar", }, expected: expected{node: &Node{ Name: "traefik", Children: []*Node{{ Name: "foo", Children: []*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: &Node{ Name: "traefik", Children: []*Node{ {Name: "foo", Value: "bar"}, }, }}, }, { desc: "several entries, level 1", in: map[string]string{ "traefik.foo": "bar", "traefik.fii": "bur", }, expected: expected{node: &Node{ Name: "traefik", Children: []*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: &Node{ Name: "traefik", Children: []*Node{ {Name: "foo", Children: []*Node{ {Name: "aaa", Value: "bar"}, {Name: "bbb", Value: "bur"}, }}, }, }}, }, { 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: &Node{ Name: "traefik", Children: []*Node{ {Name: "foo", Children: []*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: &Node{ Name: "traefik", Children: []*Node{ {Name: "foo", Children: []*Node{ {Name: "bar", Children: []*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: &Node{ Name: "traefik", Children: []*Node{ {Name: "bar", Children: []*Node{ {Name: "foo", Children: []*Node{ {Name: "bbb", Value: "bir"}, }}, }}, {Name: "foo", Children: []*Node{ {Name: "bar", Children: []*Node{ {Name: "aaa", Value: "bar"}, {Name: "bbb", Value: "bur"}, }}, }}, }, }}, }, } for _, test := range testCases { test := test t.Run(test.desc, func(t *testing.T) { t.Parallel() out, err := DecodeToNode(test.in, 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)) } } }) } }