index_test.go (2337B)
1 // Copyright 2017 The Hugo Authors. All rights reserved.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 // http://www.apache.org/licenses/LICENSE-2.0
7 //
8 // Unless required by applicable law or agreed to in writing, software
9 // distributed under the License is distributed on an "AS IS" BASIS,
10 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 // See the License for the specific language governing permissions and
12 // limitations under the License.
13
14 package collections
15
16 import (
17 "fmt"
18 "testing"
19
20 "github.com/gohugoio/hugo/common/maps"
21 "github.com/gohugoio/hugo/config"
22 "github.com/gohugoio/hugo/langs"
23
24 qt "github.com/frankban/quicktest"
25 "github.com/gohugoio/hugo/deps"
26 )
27
28 func TestIndex(t *testing.T) {
29 t.Parallel()
30 c := qt.New(t)
31 ns := New(&deps.Deps{Language: langs.NewDefaultLanguage(config.New())})
32
33 for i, test := range []struct {
34 item any
35 indices []any
36 expect any
37 isErr bool
38 }{
39 {[]int{0, 1}, []any{0}, 0, false},
40 {[]int{0, 1}, []any{9}, nil, false}, // index out of range
41 {[]uint{0, 1}, nil, []uint{0, 1}, false},
42 {[][]int{{1, 2}, {3, 4}}, []any{0, 0}, 1, false},
43 {map[int]int{1: 10, 2: 20}, []any{1}, 10, false},
44 {map[int]int{1: 10, 2: 20}, []any{0}, 0, false},
45 {map[string]map[string]string{"a": {"b": "c"}}, []any{"a", "b"}, "c", false},
46 {[]map[string]map[string]string{{"a": {"b": "c"}}}, []any{0, "a", "b"}, "c", false},
47 {map[string]map[string]any{"a": {"b": []string{"c", "d"}}}, []any{"a", "b", 1}, "d", false},
48 {map[string]map[string]string{"a": {"b": "c"}}, []any{[]string{"a", "b"}}, "c", false},
49 {maps.Params{"a": "av"}, []any{"A"}, "av", false},
50 {maps.Params{"a": map[string]any{"b": "bv"}}, []any{"A", "B"}, "bv", false},
51 // errors
52 {nil, nil, nil, true},
53 {[]int{0, 1}, []any{"1"}, nil, true},
54 {[]int{0, 1}, []any{nil}, nil, true},
55 {tstNoStringer{}, []any{0}, nil, true},
56 } {
57 c.Run(fmt.Sprint(i), func(c *qt.C) {
58 errMsg := qt.Commentf("[%d] %v", i, test)
59
60 result, err := ns.Index(test.item, test.indices...)
61
62 if test.isErr {
63 c.Assert(err, qt.Not(qt.IsNil), errMsg)
64 return
65 }
66 c.Assert(err, qt.IsNil, errMsg)
67 c.Assert(result, qt.DeepEquals, test.expect, errMsg)
68 })
69 }
70 }