mirror of https://github.com/gohugoio/hugo.git
135 lines
3.5 KiB
Go
135 lines
3.5 KiB
Go
// Copyright 2019 The Hugo Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package hqt
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import (
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"errors"
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"fmt"
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"reflect"
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"strings"
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qt "github.com/frankban/quicktest"
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"github.com/gohugoio/hugo/htesting"
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"github.com/google/go-cmp/cmp"
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"github.com/spf13/cast"
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)
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// IsSameString asserts that two strings are equal. The two strings
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// are normalized (whitespace removed) before doing a ==.
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// Also note that two strings can be the same even if they're of different
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// types.
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var IsSameString qt.Checker = &stringChecker{
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argNames: []string{"got", "want"},
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}
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// IsSameType asserts that got is the same type as want.
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var IsSameType qt.Checker = &typeChecker{
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argNames: []string{"got", "want"},
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}
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type argNames []string
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func (a argNames) ArgNames() []string {
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return a
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}
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type typeChecker struct {
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argNames
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}
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// Check implements Checker.Check by checking that got and args[0] is of the same type.
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func (c *typeChecker) Check(got interface{}, args []interface{}, note func(key string, value interface{})) (err error) {
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if want := args[0]; reflect.TypeOf(got) != reflect.TypeOf(want) {
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if _, ok := got.(error); ok && want == nil {
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return errors.New("got non-nil error")
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}
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return errors.New("values are not of same type")
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}
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return nil
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}
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type stringChecker struct {
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argNames
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}
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// Check implements Checker.Check by checking that got and args[0] represents the same normalized text (whitespace etc. trimmed).
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func (c *stringChecker) Check(got interface{}, args []interface{}, note func(key string, value interface{})) (err error) {
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s1, s2 := cast.ToString(got), cast.ToString(args[0])
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if s1 == s2 {
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return nil
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}
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s1, s2 = normalizeString(s1), normalizeString(s2)
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if s1 == s2 {
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return nil
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}
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return fmt.Errorf("values are not the same text: %s", htesting.DiffStrings(s1, s2))
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}
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func normalizeString(s string) string {
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lines := strings.Split(strings.TrimSpace(s), "\n")
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for i, line := range lines {
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lines[i] = strings.TrimSpace(line)
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}
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return strings.Join(lines, "\n")
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}
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// DeepAllowUnexported creates an option to allow compare of unexported types
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// in the given list of types.
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// see https://github.com/google/go-cmp/issues/40#issuecomment-328615283
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func DeepAllowUnexported(vs ...interface{}) cmp.Option {
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m := make(map[reflect.Type]struct{})
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for _, v := range vs {
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structTypes(reflect.ValueOf(v), m)
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}
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var typs []interface{}
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for t := range m {
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typs = append(typs, reflect.New(t).Elem().Interface())
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}
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return cmp.AllowUnexported(typs...)
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}
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func structTypes(v reflect.Value, m map[reflect.Type]struct{}) {
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if !v.IsValid() {
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return
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}
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switch v.Kind() {
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case reflect.Ptr:
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if !v.IsNil() {
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structTypes(v.Elem(), m)
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}
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case reflect.Interface:
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if !v.IsNil() {
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structTypes(v.Elem(), m)
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}
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case reflect.Slice, reflect.Array:
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for i := 0; i < v.Len(); i++ {
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structTypes(v.Index(i), m)
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}
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case reflect.Map:
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for _, k := range v.MapKeys() {
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structTypes(v.MapIndex(k), m)
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}
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case reflect.Struct:
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m[v.Type()] = struct{}{}
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for i := 0; i < v.NumField(); i++ {
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structTypes(v.Field(i), m)
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}
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}
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}
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