github.com/rminnich/u-root@v7.0.0+incompatible/cmds/core/tr/tr_test.go (about)

     1  // Copyright 2018 the u-root 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 main
     6  
     7  import (
     8  	"bytes"
     9  	"testing"
    10  	"unicode"
    11  
    12  	"github.com/u-root/u-root/pkg/testutil"
    13  )
    14  
    15  func TestUnescape(t *testing.T) {
    16  	if _, err := unescape("a\\tb\\nc\\d"); err == nil {
    17  		t.Errorf("unescape() expected error, got nil")
    18  	}
    19  	got, err := unescape("a\\tb\\nc\\\\")
    20  	if err != nil {
    21  		t.Fatalf("unescape() error: %v", err)
    22  	}
    23  	want := "a\tb\nc\\"
    24  	if string(got) != want {
    25  		t.Errorf("unescape() want %q, got %q", want, got)
    26  	}
    27  }
    28  
    29  func TestTR(t *testing.T) {
    30  	for _, test := range []struct {
    31  		name   string
    32  		input  string
    33  		output string
    34  		t      *transformer
    35  	}{
    36  		{
    37  			name:   "alnum",
    38  			input:  "0123456789!&?defgh",
    39  			output: "zzzzzzzzzz!&?zzzzz",
    40  			t:      setToRune(ALNUM, 'z'),
    41  		},
    42  		{
    43  			name:   "alpha",
    44  			input:  "0123456789abcdefgh",
    45  			output: "0123456789zzzzzzzz",
    46  			t:      setToRune(ALPHA, 'z'),
    47  		},
    48  		{
    49  			name:   "digit",
    50  			input:  "0123456789abcdefgh",
    51  			output: "zzzzzzzzzzabcdefgh",
    52  			t:      setToRune(DIGIT, 'z'),
    53  		},
    54  		{
    55  			name:   "lower",
    56  			input:  "0123456789abcdEFGH",
    57  			output: "0123456789zzzzEFGH",
    58  			t:      setToRune(LOWER, 'z'),
    59  		},
    60  		{
    61  			name:   "upper",
    62  			input:  "0123456789abcdEFGH",
    63  			output: "0123456789abcdzzzz",
    64  			t:      setToRune(UPPER, 'z'),
    65  		},
    66  		{
    67  			name:   "punct",
    68  			input:  "012345*{}[]!.?&()def",
    69  			output: "012345zzzzzzzzzzzdef",
    70  			t:      setToRune(PUNCT, 'z'),
    71  		},
    72  		{
    73  			name:   "space",
    74  			input:  "0123456789\t\ncdef",
    75  			output: "0123456789zzcdef",
    76  			t:      setToRune(SPACE, 'z'),
    77  		},
    78  		{
    79  			name:   "graph",
    80  			input:  "\f\t🔫123456789abcdEFG",
    81  			output: "\f\tzzzzzzzzzzzzzzzzz",
    82  			t:      setToRune(GRAPH, 'z'),
    83  		},
    84  		{
    85  			name:   "lower_to_upper",
    86  			input:  "0123456789abcdEFGH",
    87  			output: "0123456789ABCDEFGH",
    88  			t:      lowerToUpper(),
    89  		},
    90  		{
    91  			name:   "upper_to_lower",
    92  			input:  "0123456789abcdEFGH",
    93  			output: "0123456789abcdefgh",
    94  			t:      upperToLower(),
    95  		},
    96  		{
    97  			name:   "runes_to_runes",
    98  			input:  "0123456789abcdEFGH",
    99  			output: "012x45678yabcdzFGH",
   100  			t:      runesToRunes([]rune("39E"), 'x', 'y', 'z'),
   101  		},
   102  		{
   103  			name:   "runes_to_runes_truncated",
   104  			input:  "0123456789abcdEFGH",
   105  			output: "012x45678yabcdyFGH",
   106  			t:      runesToRunes([]rune("39E"), 'x', 'y'),
   107  		},
   108  		{
   109  			name:   "delete_alnum",
   110  			input:  "0123456789abcdEFGH",
   111  			output: "",
   112  			t:      setToRune(ALNUM, unicode.ReplacementChar),
   113  		},
   114  	} {
   115  		t.Run(test.name, func(t *testing.T) {
   116  			out := &bytes.Buffer{}
   117  			test.t.run(bytes.NewBufferString(test.input), out)
   118  			res := out.String()
   119  			if test.output != res {
   120  				t.Errorf("run() want %q, got %q", test.output, res)
   121  			}
   122  		})
   123  	}
   124  }
   125  
   126  func TestMain(m *testing.M) {
   127  	testutil.Run(m, main)
   128  }