index_test.go - hugo - [fork] hugo port for 9front
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---
index_test.go (2649B)
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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
22 qt "github.com/frankban/quicktest"
23 )
24
25 func TestIndex(t *testing.T) {
26 t.Parallel()
27 c := qt.New(t)
28 ns := newNs()
29
30 var (
31 emptyInterface any
32 nilPointer *int
33 )
34
35 for i, test := range []struct {
36 item any
37 indices []any
38 expect any
39 isErr bool
40 }{
41 {[]int{0, 1}, []any{0}, 0, false},
42 {[]int{0, 1}, []any{9}, nil, false}, // index out of range
43 {[]uint{0, 1}, nil, []uint{0, 1}, false},
44 {[][]int{{1, 2}, {3, 4}}, []any{0, 0}, 1, false},
45 {map[int]int{1: 10, 2: 20}, []any{1}, 10, false},
46 {map[int]int{1: 10, 2: 20}, []any{0}, 0, false},
47 {map[string]map[string]string{"a": {"b": "c"}}, []any{"a", "b"}, "c", false},
48 {[]map[string]map[string]string{{"a": {"b": "c"}}}, []any{0, "a", "b"}, "c", false},
49 {map[string]map[string]any{"a": {"b": []string{"c", "d"}}}, []any{"a", "b", 1}, "d", false},
50 {maps.Params{"a": "av"}, []any{"A"}, "av", false},
51 {maps.Params{"a": map[string]any{"b": "bv"}}, []any{"A", "B"}, "bv", false},
52
53 // These used to be errors.
54 // See issue 10489.
55 {nil, nil, nil, false},
56 {nil, []any{0}, nil, false},
57 {emptyInterface, []any{0}, nil, false},
58 {nilPointer, []any{0}, nil, false},
59
60 // errors
61 {[]int{0, 1}, []any{"1"}, nil, true},
62 {[]int{0, 1}, []any{nil}, nil, true},
63 {tstNoStringer{}, []any{0}, nil, true},
64 } {
65
66 c.Run(fmt.Sprintf("vararg %d", i), func(c *qt.C) {
67 errMsg := qt.Commentf("[%d] %v", i, test)
68
69 result, err := ns.Index(test.item, test.indices...)
70
71 if test.isErr {
72 c.Assert(err, qt.Not(qt.IsNil), errMsg)
73 return
74 }
75 c.Assert(err, qt.IsNil, errMsg)
76 c.Assert(result, qt.DeepEquals, test.expect, errMsg)
77 })
78
79 c.Run(fmt.Sprintf("slice %d", i), func(c *qt.C) {
80 errMsg := qt.Commentf("[%d] %v", i, test)
81
82 result, err := ns.Index(test.item, test.indices)
83
84 if test.isErr {
85 c.Assert(err, qt.Not(qt.IsNil), errMsg)
86 return
87 }
88 c.Assert(err, qt.IsNil, errMsg)
89 c.Assert(result, qt.DeepEquals, test.expect, errMsg)
90 })
91 }
92 }