github.com/pdfcpu/pdfcpu@v0.11.1/pkg/api/test/property_test.go (about)

     1  /*
     2  Copyright 2020 The pdf Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8  	http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package test
    18  
    19  import (
    20  	"os"
    21  	"path/filepath"
    22  	"testing"
    23  
    24  	"github.com/pdfcpu/pdfcpu/pkg/api"
    25  	"github.com/pdfcpu/pdfcpu/pkg/pdfcpu"
    26  	"github.com/pdfcpu/pdfcpu/pkg/pdfcpu/model"
    27  )
    28  
    29  func listPropertiesFile(t *testing.T, fileName string, conf *model.Configuration) ([]string, error) {
    30  	t.Helper()
    31  
    32  	msg := "listProperties"
    33  
    34  	f, err := os.Open(fileName)
    35  	if err != nil {
    36  		t.Fatalf("%s open: %v\n", msg, err)
    37  	}
    38  	defer f.Close()
    39  
    40  	if conf == nil {
    41  		conf = model.NewDefaultConfiguration()
    42  	} else {
    43  		conf.ValidationMode = model.ValidationRelaxed
    44  	}
    45  	conf.Cmd = model.LISTPROPERTIES
    46  
    47  	ctx, err := api.ReadValidateAndOptimize(f, conf)
    48  	if err != nil {
    49  		t.Fatalf("%s ReadValidateAndOptimize: %v\n", msg, err)
    50  	}
    51  
    52  	return pdfcpu.PropertiesList(ctx)
    53  }
    54  
    55  func listProperties(t *testing.T, msg, fileName string, want []string) []string {
    56  	t.Helper()
    57  
    58  	got, err := listPropertiesFile(t, fileName, nil)
    59  	if err != nil {
    60  		t.Fatalf("%s list properties: %v\n", msg, err)
    61  	}
    62  
    63  	// # of keywords must be want
    64  	if len(got) != len(want) {
    65  		t.Fatalf("%s: list properties %s: want %d got %d\n", msg, fileName, len(want), len(got))
    66  	}
    67  	for i, v := range got {
    68  		if v != want[i] {
    69  			t.Fatalf("%s: list properties %s: want %v got %v\n", msg, fileName, want, got)
    70  		}
    71  	}
    72  	return got
    73  }
    74  
    75  func TestProperties(t *testing.T) {
    76  	msg := "TestProperties"
    77  
    78  	fileName := filepath.Join(outDir, "go.pdf")
    79  	if err := copyFile(t, filepath.Join(inDir, "go.pdf"), fileName); err != nil {
    80  		t.Fatalf("%s: copyFile: %v\n", msg, err)
    81  	}
    82  
    83  	// # of properties must be 0
    84  	listProperties(t, msg, fileName, nil)
    85  
    86  	properties := map[string]string{"name1": "value1", "nameÖ": "valueö", "cjkv": "你好"}
    87  	if err := api.AddPropertiesFile(fileName, "", properties, nil); err != nil {
    88  		t.Fatalf("%s add properties: %v\n", msg, err)
    89  	}
    90  
    91  	listProperties(t, msg, fileName, []string{"cjkv = 你好", "name1 = value1", "nameÖ = valueö"})
    92  
    93  	if err := api.RemovePropertiesFile(fileName, "", []string{"nameÖ"}, nil); err != nil {
    94  		t.Fatalf("%s remove 1 property: %v\n", msg, err)
    95  	}
    96  
    97  	listProperties(t, msg, fileName, []string{"cjkv = 你好", "name1 = value1"})
    98  
    99  	if err := api.RemovePropertiesFile(fileName, "", nil, nil); err != nil {
   100  		t.Fatalf("%s remove all properties: %v\n", msg, err)
   101  	}
   102  
   103  	// # of properties must be 0
   104  	listProperties(t, msg, fileName, nil)
   105  }