ref: 837e084bbe53e9e2e6cd471d2a3daf273a874d92
dir: /tpl/collections/index_test.go/
// Copyright 2017 The Hugo Authors. All rights reserved. // // Licensed under the Apache License, Version 2.0 (the "License"); // you may not use this file except in compliance with the License. // You may obtain a copy of the License at // http://www.apache.org/licenses/LICENSE-2.0 // // Unless required by applicable law or agreed to in writing, software // distributed under the License is distributed on an "AS IS" BASIS, // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. // See the License for the specific language governing permissions and // limitations under the License. package collections import ( "fmt" "testing" "github.com/gohugoio/hugo/common/maps" qt "github.com/frankban/quicktest" "github.com/gohugoio/hugo/deps" ) func TestIndex(t *testing.T) { t.Parallel() c := qt.New(t) ns := New(&deps.Deps{}) for i, test := range []struct { item interface{} indices []interface{} expect interface{} isErr bool }{ {[]int{0, 1}, []interface{}{0}, 0, false}, {[]int{0, 1}, []interface{}{9}, nil, false}, // index out of range {[]uint{0, 1}, nil, []uint{0, 1}, false}, {[][]int{{1, 2}, {3, 4}}, []interface{}{0, 0}, 1, false}, {map[int]int{1: 10, 2: 20}, []interface{}{1}, 10, false}, {map[int]int{1: 10, 2: 20}, []interface{}{0}, 0, false}, {map[string]map[string]string{"a": {"b": "c"}}, []interface{}{"a", "b"}, "c", false}, {[]map[string]map[string]string{{"a": {"b": "c"}}}, []interface{}{0, "a", "b"}, "c", false}, {map[string]map[string]interface{}{"a": {"b": []string{"c", "d"}}}, []interface{}{"a", "b", 1}, "d", false}, {map[string]map[string]string{"a": {"b": "c"}}, []interface{}{[]string{"a", "b"}}, "c", false}, {maps.Params{"a": "av"}, []interface{}{"A"}, "av", false}, {maps.Params{"a": map[string]interface{}{"b": "bv"}}, []interface{}{"A", "B"}, "bv", false}, // errors {nil, nil, nil, true}, {[]int{0, 1}, []interface{}{"1"}, nil, true}, {[]int{0, 1}, []interface{}{nil}, nil, true}, {tstNoStringer{}, []interface{}{0}, nil, true}, } { c.Run(fmt.Sprint(i), func(c *qt.C) { errMsg := qt.Commentf("[%d] %v", i, test) result, err := ns.Index(test.item, test.indices...) if test.isErr { c.Assert(err, qt.Not(qt.IsNil), errMsg) return } c.Assert(err, qt.IsNil, errMsg) c.Assert(result, qt.DeepEquals, test.expect, errMsg) }) } }