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			125 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Go
		
	
	
	
	
	
			
		
		
	
	
			125 lines
		
	
	
		
			2.9 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 collections
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import (
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	"errors"
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	"testing"
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	qt "github.com/frankban/quicktest"
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)
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var (
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	_ Slicer              = (*tstSlicer)(nil)
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	_ Slicer              = (*tstSlicerIn1)(nil)
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	_ Slicer              = (*tstSlicerIn2)(nil)
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	_ testSlicerInterface = (*tstSlicerIn1)(nil)
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	_ testSlicerInterface = (*tstSlicerIn1)(nil)
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)
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type testSlicerInterface interface {
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	Name() string
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}
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type testSlicerInterfaces []testSlicerInterface
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type tstSlicerIn1 struct {
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	TheName string
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}
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type tstSlicerIn2 struct {
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	TheName string
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}
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type tstSlicer struct {
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	TheName string
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}
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func (p *tstSlicerIn1) Slice(in any) (any, error) {
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	items := in.([]any)
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	result := make(testSlicerInterfaces, len(items))
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	for i, v := range items {
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		switch vv := v.(type) {
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		case testSlicerInterface:
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			result[i] = vv
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		default:
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			return nil, errors.New("invalid type")
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		}
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	}
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	return result, nil
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}
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func (p *tstSlicerIn2) Slice(in any) (any, error) {
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	items := in.([]any)
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	result := make(testSlicerInterfaces, len(items))
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	for i, v := range items {
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		switch vv := v.(type) {
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		case testSlicerInterface:
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			result[i] = vv
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		default:
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			return nil, errors.New("invalid type")
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		}
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	}
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	return result, nil
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}
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func (p *tstSlicerIn1) Name() string {
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	return p.TheName
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}
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func (p *tstSlicerIn2) Name() string {
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	return p.TheName
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}
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func (p *tstSlicer) Slice(in any) (any, error) {
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	items := in.([]any)
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	result := make(tstSlicers, len(items))
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	for i, v := range items {
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		switch vv := v.(type) {
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		case *tstSlicer:
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			result[i] = vv
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		default:
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			return nil, errors.New("invalid type")
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		}
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	}
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	return result, nil
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}
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type tstSlicers []*tstSlicer
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func TestSlice(t *testing.T) {
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	t.Parallel()
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	c := qt.New(t)
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	for i, test := range []struct {
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		args     []any
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		expected any
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	}{
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		{[]any{"a", "b"}, []string{"a", "b"}},
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		{[]any{&tstSlicer{"a"}, &tstSlicer{"b"}}, tstSlicers{&tstSlicer{"a"}, &tstSlicer{"b"}}},
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		{[]any{&tstSlicer{"a"}, "b"}, []any{&tstSlicer{"a"}, "b"}},
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		{[]any{}, []any{}},
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		{[]any{nil}, []any{nil}},
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		{[]any{5, "b"}, []any{5, "b"}},
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		{[]any{&tstSlicerIn1{"a"}, &tstSlicerIn2{"b"}}, testSlicerInterfaces{&tstSlicerIn1{"a"}, &tstSlicerIn2{"b"}}},
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		{[]any{&tstSlicerIn1{"a"}, &tstSlicer{"b"}}, []any{&tstSlicerIn1{"a"}, &tstSlicer{"b"}}},
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	} {
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		errMsg := qt.Commentf("[%d] %v", i, test.args)
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		result := Slice(test.args...)
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		c.Assert(test.expected, qt.DeepEquals, result, errMsg)
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	}
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}
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