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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
|
package container
import (
"errors"
"os"
"testing"
"hakurei.app/container/check"
"hakurei.app/container/stub"
)
func TestMountOverlayOp(t *testing.T) {
t.Parallel()
t.Run("argument error", func(t *testing.T) {
t.Parallel()
testCases := []struct {
name string
err *OverlayArgumentError
want string
}{
{"unexpected upper", &OverlayArgumentError{OverlayEphemeralUnexpectedUpper, "/proc/"},
`upperdir has unexpected value "/proc/"`},
{"lower ro short", &OverlayArgumentError{OverlayReadonlyLower, zeroString},
"readonly overlay requires at least two lowerdir"},
{"lower short", &OverlayArgumentError{OverlayEmptyLower, zeroString},
"overlay requires at least one lowerdir"},
{"oob", &OverlayArgumentError{0xdeadbeef, zeroString},
"invalid overlay argument error 0xdeadbeef"},
}
for _, tc := range testCases {
t.Run(tc.name, func(t *testing.T) {
t.Parallel()
if got := tc.err.Error(); got != tc.want {
t.Errorf("Error: %q, want %q", got, tc.want)
}
})
}
})
checkOpBehaviour(t, []opBehaviourTestCase{
{"mkdirTemp invalid ephemeral", &Params{ParentPerm: 0705}, &MountOverlayOp{
Target: check.MustAbs("/"),
Lower: []*check.Absolute{
check.MustAbs("/var/lib/planterette/base/debian:f92c9052"),
check.MustAbs("/var/lib/planterette/app/org.chromium.Chromium@debian:f92c9052"),
},
Upper: check.MustAbs("/proc/"),
}, nil, &OverlayArgumentError{OverlayEphemeralUnexpectedUpper, "/proc/"}, nil, nil},
{"mkdirTemp upper ephemeral", &Params{ParentPerm: 0705}, &MountOverlayOp{
Target: check.MustAbs("/"),
Lower: []*check.Absolute{
check.MustAbs("/var/lib/planterette/base/debian:f92c9052"),
check.MustAbs("/var/lib/planterette/app/org.chromium.Chromium@debian:f92c9052"),
},
Upper: check.MustAbs("/"),
}, []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/var/lib/planterette/base/debian:f92c9052"}, "/var/lib/planterette/base/debian:f92c9052", nil),
call("evalSymlinks", stub.ExpectArgs{"/var/lib/planterette/app/org.chromium.Chromium@debian:f92c9052"}, "/var/lib/planterette/app/org.chromium.Chromium@debian:f92c9052", nil),
}, nil, []stub.Call{
call("mkdirAll", stub.ExpectArgs{"/sysroot", os.FileMode(0705)}, nil, nil),
call("mkdirTemp", stub.ExpectArgs{"/", "overlay.upper.*"}, "overlay.upper.32768", stub.UniqueError(6)),
}, stub.UniqueError(6)},
{"mkdirTemp work ephemeral", &Params{ParentPerm: 0705}, &MountOverlayOp{
Target: check.MustAbs("/"),
Lower: []*check.Absolute{
check.MustAbs("/var/lib/planterette/base/debian:f92c9052"),
check.MustAbs("/var/lib/planterette/app/org.chromium.Chromium@debian:f92c9052"),
},
Upper: check.MustAbs("/"),
}, []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/var/lib/planterette/base/debian:f92c9052"}, "/var/lib/planterette/base/debian:f92c9052", nil),
call("evalSymlinks", stub.ExpectArgs{"/var/lib/planterette/app/org.chromium.Chromium@debian:f92c9052"}, "/var/lib/planterette/app/org.chromium.Chromium@debian:f92c9052", nil),
}, nil, []stub.Call{
call("mkdirAll", stub.ExpectArgs{"/sysroot", os.FileMode(0705)}, nil, nil),
call("mkdirTemp", stub.ExpectArgs{"/", "overlay.upper.*"}, "overlay.upper.32768", nil),
call("mkdirTemp", stub.ExpectArgs{"/", "overlay.work.*"}, "overlay.work.32768", stub.UniqueError(5)),
}, stub.UniqueError(5)},
{"success ephemeral", &Params{ParentPerm: 0705}, &MountOverlayOp{
Target: check.MustAbs("/"),
Lower: []*check.Absolute{
check.MustAbs("/var/lib/planterette/base/debian:f92c9052"),
check.MustAbs("/var/lib/planterette/app/org.chromium.Chromium@debian:f92c9052"),
},
Upper: check.MustAbs("/"),
}, []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/var/lib/planterette/base/debian:f92c9052"}, "/var/lib/planterette/base/debian:f92c9052", nil),
call("evalSymlinks", stub.ExpectArgs{"/var/lib/planterette/app/org.chromium.Chromium@debian:f92c9052"}, "/var/lib/planterette/app/org.chromium.Chromium@debian:f92c9052", nil),
}, nil, []stub.Call{
call("mkdirAll", stub.ExpectArgs{"/sysroot", os.FileMode(0705)}, nil, nil),
call("mkdirTemp", stub.ExpectArgs{"/", "overlay.upper.*"}, "overlay.upper.32768", nil),
call("mkdirTemp", stub.ExpectArgs{"/", "overlay.work.*"}, "overlay.work.32768", nil),
call("mount", stub.ExpectArgs{"overlay", "/sysroot", "overlay", uintptr(0), "" +
"upperdir=overlay.upper.32768," +
"workdir=overlay.work.32768," +
"lowerdir=" +
`/host/var/lib/planterette/base/debian\:f92c9052:` +
`/host/var/lib/planterette/app/org.chromium.Chromium@debian\:f92c9052,` +
"userxattr"}, nil, nil),
}, nil},
{"short lower ro", &Params{ParentPerm: 0755}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{
check.MustAbs("/mnt-root/nix/.ro-store"),
},
}, []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.ro-store"}, "/mnt-root/nix/.ro-store", nil),
}, nil, []stub.Call{
call("mkdirAll", stub.ExpectArgs{"/sysroot/nix/store", os.FileMode(0755)}, nil, nil),
}, &OverlayArgumentError{OverlayReadonlyLower, zeroString}},
{"success ro noPrefix", &Params{ParentPerm: 0755}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{
check.MustAbs("/mnt-root/nix/.ro-store"),
check.MustAbs("/mnt-root/nix/.ro-store0"),
},
noPrefix: true,
}, []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.ro-store"}, "/mnt-root/nix/.ro-store", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.ro-store0"}, "/mnt-root/nix/.ro-store0", nil),
}, nil, []stub.Call{
call("mkdirAll", stub.ExpectArgs{"/nix/store", os.FileMode(0755)}, nil, nil),
call("mount", stub.ExpectArgs{"overlay", "/nix/store", "overlay", uintptr(0), "" +
"lowerdir=" +
"/host/mnt-root/nix/.ro-store:" +
"/host/mnt-root/nix/.ro-store0," +
"userxattr"}, nil, nil),
}, nil},
{"success ro", &Params{ParentPerm: 0755}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{
check.MustAbs("/mnt-root/nix/.ro-store"),
check.MustAbs("/mnt-root/nix/.ro-store0"),
},
}, []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.ro-store"}, "/mnt-root/nix/.ro-store", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.ro-store0"}, "/mnt-root/nix/.ro-store0", nil),
}, nil, []stub.Call{
call("mkdirAll", stub.ExpectArgs{"/sysroot/nix/store", os.FileMode(0755)}, nil, nil),
call("mount", stub.ExpectArgs{"overlay", "/sysroot/nix/store", "overlay", uintptr(0), "" +
"lowerdir=" +
"/host/mnt-root/nix/.ro-store:" +
"/host/mnt-root/nix/.ro-store0," +
"userxattr"}, nil, nil),
}, nil},
{"nil lower", &Params{ParentPerm: 0700}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work"),
}, []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/upper"}, "/mnt-root/nix/.rw-store/.upper", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/work"}, "/mnt-root/nix/.rw-store/.work", nil),
}, nil, []stub.Call{
call("mkdirAll", stub.ExpectArgs{"/sysroot/nix/store", os.FileMode(0700)}, nil, nil),
}, &OverlayArgumentError{OverlayEmptyLower, zeroString}},
{"evalSymlinks upper", &Params{ParentPerm: 0700}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work"),
}, []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/upper"}, "/mnt-root/nix/.rw-store/.upper", stub.UniqueError(4)),
}, stub.UniqueError(4), nil, nil},
{"evalSymlinks work", &Params{ParentPerm: 0700}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work"),
}, []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/upper"}, "/mnt-root/nix/.rw-store/.upper", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/work"}, "/mnt-root/nix/.rw-store/.work", stub.UniqueError(3)),
}, stub.UniqueError(3), nil, nil},
{"evalSymlinks lower", &Params{ParentPerm: 0700}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work"),
}, []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/upper"}, "/mnt-root/nix/.rw-store/.upper", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/work"}, "/mnt-root/nix/.rw-store/.work", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.ro-store"}, "/mnt-root/nix/ro-store", stub.UniqueError(2)),
}, stub.UniqueError(2), nil, nil},
{"mkdirAll", &Params{ParentPerm: 0700}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work"),
}, []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/upper"}, "/mnt-root/nix/.rw-store/.upper", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/work"}, "/mnt-root/nix/.rw-store/.work", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.ro-store"}, "/mnt-root/nix/ro-store", nil),
}, nil, []stub.Call{
call("mkdirAll", stub.ExpectArgs{"/sysroot/nix/store", os.FileMode(0700)}, nil, stub.UniqueError(1)),
}, stub.UniqueError(1)},
{"mount", &Params{ParentPerm: 0700}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work"),
}, []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/upper"}, "/mnt-root/nix/.rw-store/.upper", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/work"}, "/mnt-root/nix/.rw-store/.work", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.ro-store"}, "/mnt-root/nix/ro-store", nil),
}, nil, []stub.Call{
call("mkdirAll", stub.ExpectArgs{"/sysroot/nix/store", os.FileMode(0700)}, nil, nil),
call("mount", stub.ExpectArgs{"overlay", "/sysroot/nix/store", "overlay", uintptr(0), "upperdir=/host/mnt-root/nix/.rw-store/.upper,workdir=/host/mnt-root/nix/.rw-store/.work,lowerdir=/host/mnt-root/nix/ro-store,userxattr"}, nil, stub.UniqueError(0)),
}, stub.UniqueError(0)},
{"success single layer", &Params{ParentPerm: 0700}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work"),
}, []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/upper"}, "/mnt-root/nix/.rw-store/.upper", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/work"}, "/mnt-root/nix/.rw-store/.work", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.ro-store"}, "/mnt-root/nix/ro-store", nil),
}, nil, []stub.Call{
call("mkdirAll", stub.ExpectArgs{"/sysroot/nix/store", os.FileMode(0700)}, nil, nil),
call("mount", stub.ExpectArgs{"overlay", "/sysroot/nix/store", "overlay", uintptr(0), "" +
"upperdir=/host/mnt-root/nix/.rw-store/.upper," +
"workdir=/host/mnt-root/nix/.rw-store/.work," +
"lowerdir=/host/mnt-root/nix/ro-store," +
"userxattr"}, nil, nil),
}, nil},
{"success", &Params{ParentPerm: 0700}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{
check.MustAbs("/mnt-root/nix/.ro-store"),
check.MustAbs("/mnt-root/nix/.ro-store0"),
check.MustAbs("/mnt-root/nix/.ro-store1"),
check.MustAbs("/mnt-root/nix/.ro-store2"),
check.MustAbs("/mnt-root/nix/.ro-store3"),
},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work"),
}, []stub.Call{
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/upper"}, "/mnt-root/nix/.rw-store/.upper", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.rw-store/work"}, "/mnt-root/nix/.rw-store/.work", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.ro-store"}, "/mnt-root/nix/ro-store", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.ro-store0"}, "/mnt-root/nix/ro-store0", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.ro-store1"}, "/mnt-root/nix/ro-store1", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.ro-store2"}, "/mnt-root/nix/ro-store2", nil),
call("evalSymlinks", stub.ExpectArgs{"/mnt-root/nix/.ro-store3"}, "/mnt-root/nix/ro-store3", nil),
}, nil, []stub.Call{
call("mkdirAll", stub.ExpectArgs{"/sysroot/nix/store", os.FileMode(0700)}, nil, nil),
call("mount", stub.ExpectArgs{"overlay", "/sysroot/nix/store", "overlay", uintptr(0), "" +
"upperdir=/host/mnt-root/nix/.rw-store/.upper," +
"workdir=/host/mnt-root/nix/.rw-store/.work," +
"lowerdir=" +
"/host/mnt-root/nix/ro-store:" +
"/host/mnt-root/nix/ro-store0:" +
"/host/mnt-root/nix/ro-store1:" +
"/host/mnt-root/nix/ro-store2:" +
"/host/mnt-root/nix/ro-store3," +
"userxattr"}, nil, nil),
}, nil},
})
t.Run("unreachable", func(t *testing.T) {
t.Parallel()
t.Run("nil Upper non-nil Work not ephemeral", func(t *testing.T) {
t.Parallel()
wantErr := OpStateError("overlay")
if err := (&MountOverlayOp{
Work: check.MustAbs("/"),
}).early(nil, nil); !errors.Is(err, wantErr) {
t.Errorf("apply: error = %v, want %v", err, wantErr)
}
})
})
checkOpsValid(t, []opValidTestCase{
{"nil", (*MountOverlayOp)(nil), false},
{"zero", new(MountOverlayOp), false},
{"nil lower", &MountOverlayOp{Target: check.MustAbs("/"), Lower: []*check.Absolute{nil}}, false},
{"ro", &MountOverlayOp{Target: check.MustAbs("/"), Lower: []*check.Absolute{check.MustAbs("/")}}, true},
{"ro work", &MountOverlayOp{Target: check.MustAbs("/"), Work: check.MustAbs("/tmp/")}, false},
{"rw", &MountOverlayOp{Target: check.MustAbs("/"), Lower: []*check.Absolute{check.MustAbs("/")}, Upper: check.MustAbs("/"), Work: check.MustAbs("/")}, true},
})
checkOpsBuilder(t, []opsBuilderTestCase{
{"full", new(Ops).Overlay(
check.MustAbs("/nix/store"),
check.MustAbs("/mnt-root/nix/.rw-store/upper"),
check.MustAbs("/mnt-root/nix/.rw-store/work"),
check.MustAbs("/mnt-root/nix/.ro-store"),
), Ops{
&MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work"),
},
}},
{"ephemeral", new(Ops).OverlayEphemeral(check.MustAbs("/nix/store"), check.MustAbs("/mnt-root/nix/.ro-store")), Ops{
&MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/"),
},
}},
{"readonly", new(Ops).OverlayReadonly(check.MustAbs("/nix/store"), check.MustAbs("/mnt-root/nix/.ro-store")), Ops{
&MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
},
}},
})
checkOpIs(t, []opIsTestCase{
{"zero", new(MountOverlayOp), new(MountOverlayOp), false},
{"differs target", &MountOverlayOp{
Target: check.MustAbs("/nix/store/differs"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work"),
}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work")}, false},
{"differs lower", &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store/differs")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work"),
}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work")}, false},
{"differs upper", &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper/differs"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work"),
}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work")}, false},
{"differs work", &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work/differs"),
}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work")}, false},
{"equals ro", &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")}}, true},
{"equals", &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work"),
}, &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work")}, true},
})
checkOpMeta(t, []opMetaTestCase{
{"nix", &MountOverlayOp{
Target: check.MustAbs("/nix/store"),
Lower: []*check.Absolute{check.MustAbs("/mnt-root/nix/.ro-store")},
Upper: check.MustAbs("/mnt-root/nix/.rw-store/upper"),
Work: check.MustAbs("/mnt-root/nix/.rw-store/work"),
}, "mounting", `overlay on "/nix/store" with 1 layers`},
})
}
|
