archive_test.go

Documentation: github.com/bazelbuild/rules_go/go/tools/internal/txtar

     1  // Copyright 2018 The Go Authors. All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package txtar
     6  
     7  import (
     8  	"bytes"
     9  	"fmt"
    10  	"reflect"
    11  	"testing"
    12  )
    13  
    14  var tests = []struct {
    15  	name   string
    16  	text   string
    17  	parsed *Archive
    18  }{
    19  	{
    20  		name: "basic",
    21  		text: `comment1
    22  comment2
    23  -- file1 --
    24  File 1 text.
    25  -- foo ---
    26  More file 1 text.
    27  -- file 2 --
    28  File 2 text.
    29  -- empty --
    30  -- noNL --
    31  hello world`,
    32  		parsed: &Archive{
    33  			Comment: []byte("comment1\ncomment2\n"),
    34  			Files: []File{
    35  				{"file1", []byte("File 1 text.\n-- foo ---\nMore file 1 text.\n")},
    36  				{"file 2", []byte("File 2 text.\n")},
    37  				{"empty", []byte{}},
    38  				{"noNL", []byte("hello world\n")},
    39  			},
    40  		},
    41  	},
    42  }
    43  
    44  func Test(t *testing.T) {
    45  	for _, tt := range tests {
    46  		t.Run(tt.name, func(t *testing.T) {
    47  			a := Parse([]byte(tt.text))
    48  			if !reflect.DeepEqual(a, tt.parsed) {
    49  				t.Fatalf("Parse: wrong output:\nhave:\n%s\nwant:\n%s", shortArchive(a), shortArchive(tt.parsed))
    50  			}
    51  			text := Format(a)
    52  			a = Parse(text)
    53  			if !reflect.DeepEqual(a, tt.parsed) {
    54  				t.Fatalf("Parse after Format: wrong output:\nhave:\n%s\nwant:\n%s", shortArchive(a), shortArchive(tt.parsed))
    55  			}
    56  		})
    57  	}
    58  }
    59  
    60  func shortArchive(a *Archive) string {
    61  	var buf bytes.Buffer
    62  	fmt.Fprintf(&buf, "comment: %q\n", a.Comment)
    63  	for _, f := range a.Files {
    64  		fmt.Fprintf(&buf, "file %q: %q\n", f.Name, f.Data)
    65  	}
    66  	return buf.String()
    67  }
    68
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