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euanheuanh
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tar: Annotate fields in tar header test data (#75)
Motivation ---------- Breaking up the test data arrays and annotating the different fields of the tar header makes it easier to read and maintain the tests. Modifications ------------- Annotate the test data used by the tar header tests. Result ------ Documentation improvement; no functional change. Test Plan --------- All tests continue to pass.
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‎Tests/TarTests/TarUnitTests.swift‎

Lines changed: 143 additions & 34 deletions
Original file line numberDiff line numberDiff line change
@@ -107,52 +107,161 @@ let trailer = [UInt8](repeating: 0, count: trailerSize)
107107
}
108108
}
109109

110-
@Test func testSingleEmptyFile() async throws {
110+
@Test func testSingleEmptyFileHeader() async throws {
111111
let hdr = try TarHeader(name: "filename", size: 0).bytes
112112
#expect(hdr.count == 512)
113113
#expect(
114114
hdr == [
115-
102, 105, 108, 101, 110, 97, 109, 101, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
116-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
117-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
118-
48, 48, 48, 53, 53, 53, 32, 0, 48, 48, 48, 48, 48, 48, 32, 0, 48, 48, 48, 48, 48, 48, 32, 0, 48, 48, 48,
119-
48, 48, 48, 48, 48, 48, 48, 48, 32, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32, 48, 49, 48, 54, 53,
120-
55, 0, 32, 48, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
121-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
122-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
123-
117, 115, 116, 97, 114, 0, 48, 48, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
124-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
125-
0, 0, 0, 0, 0, 0, 48, 48, 48, 48, 48, 48, 32, 0, 48, 48, 48, 48, 48, 48, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0,
126-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
127-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
128-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
129-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
130-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
115+
// name: 100 bytes
116+
102, 105, 108, 101, 110, 97, 109, 101, 0, 0, 0, 0, 0, 0, 0, 0,
117+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
118+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
119+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
120+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
121+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
122+
0, 0, 0, 0,
123+
124+
// mode: 8 bytes
125+
48, 48, 48, 53, 53, 53, 32, 0,
126+
127+
// uid: 8 bytes
128+
48, 48, 48, 48, 48, 48, 32, 0,
129+
130+
// gid: 8 bytes
131+
48, 48, 48, 48, 48, 48, 32, 0,
132+
133+
// size: 12 bytes
134+
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32,
135+
136+
// mtime: 12 bytes
137+
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32,
138+
139+
// chksum: 8 bytes
140+
48, 49, 48, 54, 53, 55, 0, 32,
141+
142+
// typeflag: 1 byte
143+
48,
144+
145+
// linkname: 100 bytes
146+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
147+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
148+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
149+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
150+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
151+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
152+
0, 0, 0, 0,
153+
154+
// magic: 6 bytes
155+
117, 115, 116, 97, 114, 0,
156+
// version: 2 bytes
157+
48, 48,
158+
159+
// uname: 32 bytes
160+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
161+
162+
// gname: 32 bytes
163+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
164+
165+
// devmajor: 8 bytes
166+
48, 48, 48, 48, 48, 48, 32, 0,
167+
168+
// devmajor: 8 bytes
169+
48, 48, 48, 48, 48, 48, 32, 0,
170+
171+
// prefix: 155 bytes
172+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
173+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
174+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
175+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
176+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
177+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
178+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
179+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
180+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
181+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
182+
183+
// padding: 12 bytes
184+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
131185
]
132186
)
133187
}
134188

135-
@Test func testSingle1kBFile() async throws {
189+
@Test func testSingle1kBFileHeader() async throws {
136190
let hdr = try TarHeader(name: "filename", size: 1024).bytes
137191
#expect(hdr.count == 512)
138192
#expect(
139193
hdr == [
140-
102, 105, 108, 101, 110, 97, 109, 101, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
141-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
142-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
143-
48, 48, 48, 53, 53, 53, 32, 0, 48, 48, 48, 48, 48, 48, 32, 0, 48, 48, 48, 48, 48, 48, 32, 0, 48, 48, 48,
144-
48, 48, 48, 48, 50, 48, 48, 48, 32, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32, 48, 49, 48, 54, 54,
145-
49, 0, 32, 48, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
146-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
147-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
148-
117, 115, 116, 97, 114, 0, 48, 48, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
149-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
150-
0, 0, 0, 0, 0, 0, 48, 48, 48, 48, 48, 48, 32, 0, 48, 48, 48, 48, 48, 48, 32, 0, 0, 0, 0, 0, 0, 0, 0, 0,
151-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
152-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
153-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
154-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
155-
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
194+
// name: 100 bytes
195+
102, 105, 108, 101, 110, 97, 109, 101, 0, 0, 0, 0, 0, 0, 0, 0,
196+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
197+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
198+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
199+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
200+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
201+
0, 0, 0, 0,
202+
203+
// mode: 8 bytes
204+
48, 48, 48, 53, 53, 53, 32, 0,
205+
206+
// uid: 8 bytes
207+
48, 48, 48, 48, 48, 48, 32, 0,
208+
209+
// gid: 8 bytes
210+
48, 48, 48, 48, 48, 48, 32, 0,
211+
212+
// size: 12 bytes
213+
48, 48, 48, 48, 48, 48, 48, 50, 48, 48, 48, 32,
214+
215+
// mtime: 12 bytes
216+
48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 32,
217+
218+
// chksum: 8 bytes
219+
48, 49, 48, 54, 54, 49, 0, 32,
220+
221+
// typeflag: 1 byte
222+
48,
223+
224+
// linkname: 100 bytes
225+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
226+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
227+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
228+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
229+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
230+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
231+
0, 0, 0, 0,
232+
233+
// magic: 6 bytes
234+
117, 115, 116, 97, 114, 0,
235+
236+
// version: 2 bytes
237+
48, 48,
238+
239+
// uname: 32 bytes
240+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
241+
242+
// gname: 32 bytes
243+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
244+
245+
// devmajor: 8 bytes
246+
48, 48, 48, 48, 48, 48, 32, 0,
247+
248+
// devmajor: 8 bytes
249+
48, 48, 48, 48, 48, 48, 32, 0,
250+
251+
// prefix: 155 bytes
252+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
253+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
254+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
255+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
256+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
257+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
258+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
259+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
260+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
261+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
262+
263+
// padding: 12 bytes
264+
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
156265
]
157266
)
158267
}

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