shift/path_test.go at main · yousuf64/shift · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
// Copyright 2013 Julien Schmidt. All rights reserved.
// Based on the path package, Copyright 2009 The Go Authors.
// Use of this source code is governed by a BSD-style license that can be found
// in the LICENSE file.

package shift

import (
	"strings"
	"testing"
)

type cleanPathTest struct {
	path, result string
}

var cleanTests = []cleanPathTest{
	// Already clean
	{"/", "/"},
	{"/abc", "/abc"},
	{"/a/b/c", "/a/b/c"},
	{"/abc/", "/abc/"},
	{"/a/b/c/", "/a/b/c/"},

	// missing root
	{"", "/"},
	{"a/", "/a/"},
	{"abc", "/abc"},
	{"abc/def", "/abc/def"},
	{"a/b/c", "/a/b/c"},

	// Remove doubled slash
	{"//", "/"},
	{"/abc//", "/abc/"},
	{"/abc/def//", "/abc/def/"},
	{"/a/b/c//", "/a/b/c/"},
	{"/abc//def//ghi", "/abc/def/ghi"},
	{"//abc", "/abc"},
	{"///abc", "/abc"},
	{"//abc//", "/abc/"},

	// Remove . elements
	{".", "/"},
	{"./", "/"},
	{"/abc/./def", "/abc/def"},
	{"/./abc/def", "/abc/def"},
	{"/abc/.", "/abc/"},

	// Remove .. elements
	{"..", "/"},
	{"../", "/"},
	{"../../", "/"},
	{"../..", "/"},
	{"../../abc", "/abc"},
	{"/abc/def/ghi/../jkl", "/abc/def/jkl"},
	{"/abc/def/../ghi/../jkl", "/abc/jkl"},
	{"/abc/def/..", "/abc"},
	{"/abc/def/../..", "/"},
	{"/abc/def/../../..", "/"},
	{"/abc/def/../../..", "/"},
	{"/abc/def/../../../ghi/jkl/../../../mno", "/mno"},

	// Combinations
	{"abc/./../def", "/def"},
	{"abc//./../def", "/def"},
	{"abc/../../././../def", "/def"},
}

func TestPathClean(t *testing.T) {
	for _, test := range cleanTests {
		if s := cleanPath(test.path); s != test.result {
			t.Errorf("CleanPath(%q) = %q, want %q", test.path, s, test.result)
		}
		if s := cleanPath(test.result); s != test.result {
			t.Errorf("CleanPath(%q) = %q, want %q", test.result, s, test.result)
		}
	}
}

func BenchmarkPathClean(b *testing.B) {
	b.ReportAllocs()

	for i := 0; i < b.N; i++ {
		for _, test := range cleanTests {
			cleanPath(test.path)
		}
	}
}

func genLongPaths() (testPaths []cleanPathTest) {
	for i := 1; i <= 1234; i++ {
		ss := strings.Repeat("a", i)

		correctPath := "/" + ss
		testPaths = append(testPaths, cleanPathTest{
			path:   correctPath,
			result: correctPath,
		}, cleanPathTest{
			path:   ss,
			result: correctPath,
		}, cleanPathTest{
			path:   "//" + ss,
			result: correctPath,
		}, cleanPathTest{
			path:   "/" + ss + "/b/..",
			result: correctPath,
		})
	}
	return testPaths
}

func TestPathCleanLong(t *testing.T) {
	cleanTests := genLongPaths()

	for _, test := range cleanTests {
		if s := cleanPath(test.path); s != test.result {
			t.Errorf("CleanPath(%q) = %q, want %q", test.path, s, test.result)
		}
		if s := cleanPath(test.result); s != test.result {
			t.Errorf("CleanPath(%q) = %q, want %q", test.result, s, test.result)
		}
	}
}

func BenchmarkPathCleanLong(b *testing.B) {
	cleanTests := genLongPaths()
	b.ResetTimer()
	b.ReportAllocs()

	for i := 0; i < b.N; i++ {
		for _, test := range cleanTests {
			cleanPath(test.path)
		}
	}
}